ORIGINAL RESEARCH article
Jaguar Persecution Without “Cowflict”: Insights From Protected Territories in the Bolivian Amazon
- 1Institute for Conservation Research, San Diego Zoo Global, San Diego, CA, United States
- 2ACEAA-Conservación Amazónica, La Paz, Bolivia
- 3Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal
- 4Wildlife Conservation Research Unit, University of Oxford, Oxford, United Kingdom
Persecution by humans is one of the most pressing threats to jaguars (Panthera onca) throughout the Americas, yet few studies have examined the killing of jaguars outside cattle-ranching communities. Although over one-third of the jaguar's range is formally protected, relatively little is known about human-jaguar relationships within protected areas and indigenous territories. Protected land within the Bolivian Amazon, considered a stronghold for the jaguar, contains communities who differ economically, legally, and socially from previously-studied human populations living with jaguars. Using in-person structured interviews, we investigated attitudes and norms related to jaguars and jaguar killing, self-reported past killing of jaguars, and demographic variables in two protected areas and an indigenous territory: Integrated Management Area (IMA) of Santa Rosa del Abuná (Santa Rosa, n = 224), Indigenous Territory Tacana II (n = 137), and Manuripi National Amazon Wildlife Reserve (MNAWR, n = 169). Overall, people disliked (48.9%) or felt neutral (26.8%) toward jaguars. A relatively large number of people reported either being attacked or knowing someone who had been attacked by a jaguar: 15.45% in Santa Rosa, 14.20% in MNAWR, and 30.88% in Tacana II. Many respondents stated to have killed a jaguar, although the proportion differed among study areas: 20.39% of Santa Rosa, 55.47% of Tacana II, and 32.72% of MNAWR. People perceived jaguar persecution as relatively common: 44.9% of Santa Rosa, 90.8% of Tacana II, and 65.8% of MNAWR said their neighbors kill jaguars (i.e., descriptive norm). Also, 75.4% of Santa Rosa, 89.1% of Tacana II, and 69.1% of MNAWR said that some of their family members and neighbors thought jaguar killing was good (i.e., subjective norm). Descriptive and subjective norms positively influenced both attitudes toward killing and past killing of jaguars. This perception of jaguar killing being common and socially-accepted, combined with high rates of past killing and a growing illegal trade of jaguar parts, may create an atmosphere conducive to widespread jaguar persecution in the Bolivian Amazon. We recommend management strategies that focus on preventing jaguar depredation of small domestic animals, lessening the perception of carnivore encounters as dangerous to decrease safety-related fears, and making large carnivore killing socially unacceptable (e.g., through social marketing).
Habitat loss and persecution by humans are the principal causes of the rapid declines in large carnivore populations worldwide (Ripple et al., 2014), whose long-term persistence is increasingly dependent on their survival in landscapes shared with people (Carter and Linnell, 2016; Glikman et al., 2019). Conflicts surrounding conservation are increasing in many areas, and large carnivores are particularly vulnerable, often because of livestock depredation and sometimes because of attacks on people (Inskip and Zimmermann, 2009). As top predators play a crucial role in maintaining biodiversity, population decreases due to humans can have extensive effects on ecosystems (Terborgh et al., 2002; Treves and Karanth, 2003; Garcia-Alaniz et al., 2010).
The jaguars' range has declined by more than half since 1900 (Sanderson et al., 2002; Zeller, 2007; de la Torre et al., 2017; Jȩdrzejewski et al., 2018). Within the remaining range, killing by humans is one of the most pressing threats to the species (Sanderson et al., 2002; Zeller, 2007; Galetti et al., 2013; Romero-Muñoz et al., 2019a). As human populations continue to grow and expand into the felid's habitat, understanding human-jaguar relationships is essential for developing successful conservation strategies (Manfredo and Dayer, 2004; Loveridge et al., 2010). Most studies on human-jaguar relationships have been carried out in cattle ranching areas, originally on large properties in the Pantanal of Brazil (Zimmermann et al., 2005; Azevedo and Murray, 2007) and the Llanos of Venezuela (Hoogesteijn and Chapman, 1997; Polisar et al., 2003) and later in smaller properties elsewhere (Foster et al., 2010; Rosas-Rosas and Valdez, 2010; Mexico: Figel et al., 2011; Costa Rica: Amit et al., 2013; Guatemala: Soto-Shoender and Main, 2013; Belize: Steinberg, 2016; Venezuela: Jȩdrzejewski et al., 2017). In contrast, relatively little is known about human-jaguar relationships and, in particular, jaguar persecution in forested land within and around protected areas, and in indigenous territories relying primarily on natural resources [with the exception of Carvalho (2019)'s examination of jaguar hunting in extractive reserves in the Brazilian Amazon]. This knowledge gap is significant, considering around one third (38%) of the large felid's global distribution overlaps protected areas and most of the remaining range is in the Amazon basin (de la Torre et al., 2017). As development in the Amazon intensifies, understanding the communities that live with jaguars within these protected territories will be critical for successful protection.
The southwestern Amazon is a stronghold for the jaguar, containing some of the highest documented densities of the species (Tobler et al., 2013; Jȩdrzejewski et al., 2018). Bolivia is a hotspot for jaguars (U. S. Fish and Wildlife Service, 2018; Romero-Muñoz et al., 2019a), containing high priority populations and habitats (Sanderson et al., 2002). The issue of jaguar killing is particularly important in Bolivia, as increased trafficking of jaguar parts has been detected in the country in the last few years, adding an economic incentive for persecution. Between 2014 and 2016, 344 jaguar teeth were seized by Bolivian authorities, representing at least 87 individuals (Nuñez and Aliaga-Rossel, 2017). According to researchers, this rise in trafficking could be caused by the demand for feline parts in Chinese Traditional Medicine (Still, 2003; Fraser, 2018). Although the trade of jaguar parts is illegal in Bolivia, laws are rarely enforced. Intensified conflict and opportunistic domestic hunting also threaten the predator's survival (Castaño-Uribe et al., 2016). Despite significant efforts, relatively little is known about the drivers of jaguar persecution in Bolivia (Conforti and De Azevedo, 2003; Zimmermann et al., 2005; Palmeira et al., 2008; Porfirio et al., 2014).
Indigenous communities living within protected areas of the Bolivian Amazon differ economically, legally, and socially from previously-studied populations living with jaguars. These differences are significant to conservation strategies. For example, the well-documented threat of livestock depredation by jaguars (Crawshaw, 2004; Zimmermann et al., 2005; Cavalcanti et al., 2010; Marchini and Macdonald, 2012; Amit and Jacobson, 2017) might be less relevant to their persecution in Amazonian communities where livestock is not the main economic activity (Negrões et al., 2017). In support of this, Porfirio et al. (2014) found that fishers along the Pantanal perceived jaguar differently than ranchers in the same region. Nearly half (43.3%) of the Bolivian Amazon is within an indigenous territory or a protected area, both of which legally limit deforestation (Tejada et al., 2016; Romero-Muñoz et al., 2019b). This study focuses on communities living in three areas in and around the northwestern region of the Bolivian Amazon, comprised of socio-ecological systems in which communities rely on forest resources for their livelihoods, and classified as protected territories.
Many factors influence human-carnivore interactions. For example, perceptions of and behavior toward wildlife can differ with demographic and socioeconomic status, including age, gender, and place of residence (Kellert et al., 1996) and with cultural group (Liu et al., 2011; Harvey et al., 2017). Experiences can also affect human-wildlife relationships. In particular, Marchini and Macdonald (2012) found that experiences with jaguars, such as depredation or attacks on humans, predicted intention to kill the species in ranching communities in Brazil. In addition, Carvalho (2019) linked jaguar hunting to education level, risk perceptions regarding the sanctions on such hunting, and the perception of the large carnivore as a threat to human safety.
One theoretical framework used to study human thought and behavior toward wildlife is the cognitive hierarchy (Fulton et al., 1996), which posits that cognitions (e.g., attitudes, beliefs, and norms) drive human behavior (Vaske and Donnelly, 1999; Jacobs et al., 2012). Attitudes are defined as positive or negative evaluations of objects or actions and have cognitive and affective components (Eagly and Chaiken, 1993; Verplanken et al., 1998; Ajzen, 2001). The affective component includes feelings, moods, and emotions about an object or behavior (Eagly and Chaiken, 1993). In this study, we examine the affective component of two attitude objects: jaguars and jaguar killing. Beliefs, the cognitive component, are “associations or linkages that people establish between the attitude object and various attributes” (Eagly and Chaiken, 1993). Beliefs about wildlife are based on attributes associated with the species (Carter et al., 2012). For example, people who believe that jaguars kill more people than dogs do each year may be more likely to perceive interactions with the large carnivore as negative. Using in-person structured interviews, we examined beliefs about jaguar attacks on humans, the risk of such attacks, and jaguar population size.
Norms are individual or shared standards that guide actions. Descriptive norms indicate an individual's perception of whether other people in the community perform a specific action (Cialdini et al., 1990; White et al., 2009). For example, an individual's beliefs about how many of his or her neighbors kill jaguars is a descriptive norm about jaguar killing. Normative beliefs are personal judgments about what is appropriate in different situations, for example, beliefs about whether jaguar populations should disappear in the next 5 years. Subjective norms reflect an individual's perception of whether others would approve of an action (Vaske and Whittaker, 2004; Marchini and Macdonald, 2012), for example, perceptions of whether family members and neighbors view that killing jaguars as acceptable or good.
In addition to the cognitive hierarchy framework, it is important to consider the role of emotions in human behavior toward wildlife. Emotions are a basic mental capacity and can shape mental processes and influence mental dispositions like memories, motivations, and decisions. Once activated, emotions often control human behavior (Manfredo, 2008; Jacobs et al., 2012; Jacobs and Vaske, 2019). Fear of large carnivores (Johansson et al., 2012; Sponarski et al., 2015), including jaguars (Engel et al., 2016; Amit and Jacobson, 2017), has been explored extensively. In this study, we explore demographic and socioeconomic variables, experiences with jaguars, and concepts from the cognitive hierarchy framework (e.g., attitudes and norms) and emotions regarding jaguars and the killing of jaguars, using in-person interviews. We interpret these results in the context of the distinct historical and social characteristics of each community. We compare our findings with human-jaguar relationships in other contexts, such as cattle-ranching areas, and then more broadly with the human dimensions of large carnivores conservation worldwide.
Materials and Methods
This study focuses on communities living in three areas in and around the northwestern region of the Bolivian Amazon (Figure 1): the Integrated Management Area (IMA) of Santa Rosa del Abuná, the Indigenous Territory Tacana II, and the Manuripi National Amazon Wildlife Reserve. All three territories are legally protected and contain communities relying on natural resources for their livelihoods. In Bolivia's Northwestern Amazon, the economy centers on Brazil nut (Bertholletia excelsa) collection. The use, production, and export of Brazil nut employ about 7,000 people from local communities (excluding migratory workers)1 Most Brazil nut harvest occurs deep in the forest, with collectors often working in close proximity to wildlife. For further subsistence, people collect non-timber forest products (e.g., Acaí), hunt, fish, raise some domestic animals (primarily chickens, ducks, and pigs), and practice subsistence farming. Gold mining and forestry are also present in the areas. All three areas were chosen as study locations because they represent protected territories with different legal contexts, and they face increasing threats to their wildlife populations due to the development (e.g., roads, gas, and oil exploration).
Figure 1. Map of the study areas in Bolivia: Santa Rosa del Abuná (Santa Rosa), Tacana II, and Manuripi National Amazon Wildlife Reserve (MNAWR).
Santa Rosa del Abúna
The IMA of Santa Rosa del Abúna (Santa Rosa) was established in April 2017 to promote sustainable development that does not conflict with biodiversity conservation. The area links the initiative of 20 communities to maintain a healthy forest under Bolivia's national forest policies2. Heralded as one of the most significant protected areas that Bolivia has created over the last decade, Santa Rosa is comprised of over 170,000 hectares (ha) of primary Amazonian rainforest. It lies in northern Bolivia, close to the Brazilian borders. The International Union for the Conservation of Nature (IUCN) classifies Santa Rosa as Category VI protected area, meaning that the sustainable use of natural resources is permitted3. The 2,200 people living in the IMA of Santa Rosa rely mainly on revenue generated by Brazil nut collection2. The communities that live inside this area include people of both Amazonian and Andean origins, who recently migrated to the region. Although the main economic activity is Brazil nut collection, income is supplemented with Acaí collection, small agricultural activities, agroforestry, and small domestic animals.
Tacana II is an indigenous territory located in the Madre de Dios river region of northern Bolivia, within the Ixiamas de la Abel Iturralde province. The territory, which covers about 350,000 ha, is home to more than 700 Tacana people. The population is distributed into four communities: Puerto Pérez, Las Mercedes, Toromonas, and El Tigre. Tacana II was created during the economic boom of Brazil nut extraction. The Tacana people have rights of tenure over their territory, granted by the Bolivian state. Their internal regulation of land management and natural resources is credited with preventing overexploitation of the Bolivian Amazon while promoting sustainable livelihoods3. Communities rely on Brazil nut collection as their primary source of income, although their livelihoods are supplemented with small agriculture, breeding of small domestic animals, forestry activities, and some gold mining.
Manuripi National Amazon Wildlife Reserve
The Manuripi National Amazon Wildlife Reserve (MNAWR) is a nationally-protected area located in the southwest region of the Department of Pando in northwestern Bolivia. Created in 1973, MNAWR, which spans over 725,000 ha, is the only nationally-protected area in Bolivia containing Amazonian Humid Forests. It is also the only protected area representative of that ecosystem with an abundance of Brazil nut trees. Its current boundaries and denomination were defined by Supreme Decree No. 25906 in September 2000, placing the reserve under the administration of the National Service for Protected Areas (SERNAP). MNAWR is the best-conserved area of the Madre de Dios, Acre, and Pando (MAP) region of Amazonian Forests containing Brazil nut4 About 1,500 people live within the wildlife reserve, within 9 communities, 37 private properties, and 2 settlements. Residents depend on Brazil Nut and Acaí collection as their primary source of income and supplement with small agriculture and breeding of domestic animals.
Data Collection and Questionnaire Design
Between April 2016 and July 2017, we used a mixed questionnaire (i.e., containing close- and open- ended questions) administered through personal-structured interviews in Santa Rosa, Tacana II, and MNAWR. We used semi-random stratified sampling to ensure maximum representation. We determined the appropriate sample size for each community within each study area based on the census information of adults (above 18 years old) available at the time, ensuring that sampling was proportional to the target population (~10% sampling ratio). We stratified the sample by gender to ensure the equal representation of male and female voices and, in pursuit of this, attempted to interview both male and female heads of households at each home. We randomly selected respondents within each community and revisited them if no head of the household was present during the first visit. Most participants selected and interviewed were the first adult contacted in the household. No incentives were offered to those who agreed to be interviewed. Most interviews lasted between 20 and 40 min. The survey instrument was pre-tested in each study area, and final adjustments were made accordingly. The questionnaire was written and conducted in Spanish and translated to English for analysis. Four of the authors (NN, KB, GG, PB) conducted the interviews. We excluded potential interviewer bias a posteriori by testing for statistically significant differences in the data collected by the four interviewers.
Ethical approval was obtained from Miami University Ohio IRB for Human Subject Research, Protocol Number 03252e. Based on Marchini and Macdonald (2012) questionnaire, specific close-ended questions were designed to explore the various components of the cognitive hierarchy, such as attitudes and norms (see Supplementary Data Sheet 1 for the complete questionnaire). We also collected data on general demographics, experiences with jaguars, and past jaguar killing. The questions analyzed are as follows:
We obtained data on age, ethnic origin, gender, education, and hunting habits. Age and ethnicity were open-ended questions; education was categorical (four categories: incomplete and complete primary and secondary schooling). We measured gender with a binary question (male/female). We also asked interviewees binary questions about whether they hunt (yes/no) and whether they typically carry a gun while in the forest (yes/no). We examined ethnic origin as a background variable only in analyses of Santa Rosa because Tacana II and MNAWR were ethnically homogenous. We examined two categories of perceived impact of jaguars based on previous research in Brazil: livestock loss and jaguar attacks on humans (Marchini and Macdonald, 2012). To measure these two categories, we used two binary (yes/no) questions: (1) Has a jaguar attacked your domestic animals? (2) Have you ever been attacked, or do you know someone who was attacked by a jaguar? In addition, we asked respondents to estimate the number of jaguars within the territory of their community (open-ended) to gauge perceptions of local population size.
We assessed the affective and cognitive components of attitudes toward both jaguars and jaguar killing, as well as beliefs about jaguar attack prevalence and the risk of a jaguar attack in the future. The affective component of attitudes toward jaguars, “describe your feelings toward jaguars,” was measured using a five-point Likert-type scale (from 1 to 5: “I don't like them at all” to “I like them a lot”). Attitudes toward jaguar killing were measured using a three-point scale, with lower values corresponding with negative evaluations of jaguar killing. Specifically, interviewees were asked to complete the following statement: in your opinion, killing a jaguar is: bad (1), neither good nor bad (2), or good (3). We assessed the cognitive component of attitudes by examining beliefs about jaguar attack prevalence using a five-point Likert-type scale [strongly disagree (1) to strongly agree (5)]. Agreement with the following statement was measured: “Jaguars kill more people every year in Bolivia than do domestic dogs5.” We measured beliefs about risk from jaguars using a four-point scale [none (1) to high (4)] with the following question: what is the risk of you or your family being attacked by a jaguar in the coming months?
We measured normative beliefs about preferred jaguar population size in the next 5 years in the territory of their community using a six-point scale [from disappear (1) to strongly increase (6)]. Descriptive and subjective norms regarding jaguar killing were measured using five-point scales [none (1)–all (5)]. The questions were as follows: (1) How many of your neighbors do you think kill jaguars? (descriptive); (2) Among your neighbors, how many would agree that killing a jaguar is a good thing? (subjective); (3) Within your family, how many would agree that killing a jaguar is a good thing? (subjective).
Past Jaguar Killing
We asked respondents whether they (if male) or their spouse (if female) had ever killed a jaguar in the past. Responses were coded as binary (yes/no). Concerning the most recent instance of jaguar killing by them or their spouses, we asked respondents to estimate how long ago the event occurred and the reason for the killing. Length of time since the last kill was recorded as an open-ended question and then coded into four categories: 0–5, 5–10, 10–20, and 20 or more years ago. Reasons for last kill were coded using descriptive categories such as “fear or self-defense,” and “retaliation for depredation.”
We asked participants to imagine encountering a jaguar alone while collecting Brazil nuts or walking in the forest and asked them to describe their emotional response in such a situation (open-ended). If the participants were not answering, the interviewers prompted them by asking if they would feel afraid. We coded the open-ended answers into seven categories for analysis (bravery, fear, nervousness, no fear, positive feelings, and unsure).
We accepted quantitative questionnaires for analysis if the respondent completed the demographics section, but respondents may not have answered every question. As such, sample size differs among some questions analyzed, reflecting the number of responses to that question. To compare results among geographic areas, we calculated means, medians, standard deviations, and frequency data for each variable. To test for significant differences in responses among areas, we used logistic regression for binary responses and ordinal logistic regressions for responses on the Likert-type scale. For all analyses, we set MNAWR as the reference category and used Akaike's Information Criterion (AIC) and a likelihood ratio (LR) test to determine whether a variable was significant.
We examined the relationship between several predictor variables (background factors, attitudes, and norms) and attitudes toward jaguars and toward killing jaguars using an ordinal logistic regression. We used backward stepwise variable selection based on AIC to find the most parsimonious model. We also analyzed the effect of the same predictor variables on past jaguar killing using a logistic regression and the same strategy for variable selection. We considered results with 95% confidence intervals (p < 0.05) significant. All analyses were carried out in R 3.6.0 (R Development Core Team, 2019) using the ordinal package (Christensen, 2019).
We conducted interviews with a total of 533 people (response rate = 99.81%), 224 in Santa Rosa, 137 in Tacana II, and 169 in MNAWR. However, due to missing values in the data, the sample size may be smaller for specific analyses outlined below. Mean age (38.56, SD = 14.10) and gender distribution (55.43% male) did not differ significantly among the three areas (Age: One-way ANOVA F = 2.84, p = 0.059, η = 0.104; Gender: N = 531, LR X2 = 2.84, p = 0.242). In Santa Rosa, nearly a third of the population was Andean and the rest Amazonian. In Tacana II and MNAWR, nearly all respondents were Amazonian. Most (95.59%) Tacana II residents said they hunt, a significantly higher proportion than in Santa Rosa (69.18%) and MNAWR (66.27%) (N = 461, LR X2 = 51.1, p < 0.001, | = 0.299). Also, significantly more people in Tacana II (78.20%) reported carrying a gun when in the forest than in Santa Rosa (47.80%) and MNAWR (37.31%) (N = 426, LR X2 = 51.19, p < 0.001) (Table 1).
Table 1. Descriptive statistics for background factors, attitudes, and norms in Santa Rosa del Abuná (Santa Rosa, n = 224), Tacana II (n = 137), and Manuripi National Amazon Wildlife Reserve (MNAWR, n = 169); with significant results from ANOVA and ordinal linear regressions indicated.
Experiences With Jaguars
Twice as many people reported experiencing or knowing someone who had experienced a jaguar attack in Tacana II (30.88%) as in Santa Rosa (15.45%) and MNAWR (14.20%) (N = 525, X2 = 15.58, p < 0.001). About twice as many people said jaguars had attacked their domestic animals in the past in MNAWR (50.30%) as in Santa Rosa (24.43%) and Tacana II (25.55%) (N = 527, LR X2 = 32.8, p < 0.001) (Table 1).
Perceptions of Jaguar Abundance
When asked to give an open-ended estimate of the number of jaguars in the area, participants in Tacana II perceived a population of 272 jaguars (SD = 233.5, range 20–2,000) on average. This mean estimate was significantly higher than the average perception in Santa Rosa (31.57 jaguars; SD = 58.53; range 1–500; Tukey's p < 0.001) and in MNAWR (81.42 jaguars; SD = 176.7; range 1–1,000; Tukey's p < 0.001). Although the difference in the perceived number of jaguars was relatively smaller between MNAWR and Santa Rosa, it was still statistically significant (Tukey's p = 0.0329) (Table 1).
Overall, nearly half (48.9%) of those interviewed strongly disliked or disliked jaguars; almost a third (26.8%) felt neutral. Ordinal logistic regression found no significant difference in feelings toward jaguars among the three areas (N = 530, LR X2 = 1.95, p = 0.377) (Table 1). However, a chi-square analysis of responses revealed that the proportions of positive, negative, and neutral feelings toward the species varied among regions. About a third of residents in Santa Rosa (34.4%) and MNAWR (29.6%) felt neutral about jaguars. In contrast, attitudes in Tacana II were significantly more polarized (LR X2 = 58.891, p < 0.001), and only 10.9% felt neutral toward jaguars.
Ordinal logistic regression revealed significantly more positive attitudes toward killing jaguars in Tacana II (β = 0.816, p < 0.001) and more negative attitudes in Santa Rosa (β = −0.690, p < 0.01) than in the reference category MNAWR (N = 533, LR X2 = 56.10, p < 0.001) (Table 1; Figure 2).
Human Casualties From Jaguar Attacks
Beliefs about the prevalence of human casualties from jaguar attacks in Bolivia differed among the areas (N = 519, LR X2 = 13.14, p = 0.001). In Santa Rosa, people were more likely to disagree with the incorrect statement “jaguars kill more people than dogs kill in Bolivia each year,” than people in Tacana II and MNAWR, although the effect of area on beliefs was not significant (β = 0.237, p = 0.210). In contrast, residents of Tacana II were less sure of the statement's truth-value (β = −0.479, p = 0.026), and residents of MNAWR fell in the middle of the two (Table 1).
Future Risk of Attack on Humans
In general, people believed the risk of a jaguar attack in the future was low (Table 1). There were no statistical differences in beliefs about risk among areas (N = 503, LR X2 = 1.39, p = 0.499).
In all three areas, people thought jaguar populations should decrease slightly (Table 1). There was no difference in normative beliefs about jaguar population size among the three areas (N = 526, LR X2 = 3.76, p = 0.153).
People in Tacana II thought a significantly higher proportion of their neighbors kill jaguars than people in the other two areas perceived in their respective communities (β = 0.945, p < 0.001). In Santa Rosa, a significantly lower proportion thought their neighbors kill jaguars (β = −1.014, p < 0.001) while MNAWR was in the middle (N = 517, LR X2 = 69.61, p < 0.001).
Following the trend of descriptive norms, people in Tacana II thought significantly more of their neighbors approved of killing jaguars than people in the other two areas perceived in their communities (β = 1.714, p < 0.001). However, although descriptive norms indicated increased perceptions of jaguar killing in MNAWR compared to Santa Rosa, subjective norms about the behavior were flipped. Santa Rosa residents thought more of their neighbors would approve of the behavior (β = 0.980, p < 0.001) than MNAWR residents (N = 501, LR X2 = 57.39, p < 0.001).
There were significant differences in jaguar killings among regions (N = 451, LR X2 = 39.75, p < 0.001). Over half (55.47%) of Tacana II reported killing a jaguar in the past—a proportion significantly higher (β = 0.941, p < 0.001) than those of Santa Rosa and MNAWR. Nearly a third (32.72%) of MNAWR described past killing, significantly more than Santa Rosa, where about a fifth of interviewed residents (20.39%) reported the behavior (β = −0.640, p = 0.014, Table 1; Figure 3). More than half (63.4%) of the respondents (N = 142) who had killed a jaguar in the past killed one within the last 5 years. Fewer people most recently killed a jaguar between 5 and 10 years ago (12.7%), between 10 and 20 years ago (16.2%), or more than 20 years ago (7.2%) (Supplementary Table F). When asked why they most recently killed a jaguar, 65.5% mentioned fear, 17.9% retaliation, 6.9% trade, and 5.5% said it was accidental (Supplementary Table G).
The two most common emotions mentioned by participants (N = 530) when asked how they would feel if they saw a jaguar in the forest were fear (67.5%) and no fear (25.1%). Respondents rarely mentioned positive feelings (0.8%), bravery (2.3%), or nervousness (0.9%), and few people were unsure of their emotions (3.4%) (Supplementary Table A). Given the low number of responses for most categories, we only looked at fear and no fear for further analyses. We used a logistic regression model to look at differences in these two emotions across gender and study areas. We used no fear as the reference category as it was the most neutral response. Model selection indicated that both gender and area were significant for explaining fear but that there was no interaction. Women felt more frequently afraid than men (β = 2.325, p < 0.001) and people in Santa Rosa (β = 0.909, p < 0.001) and people in Tacana II (β = 0.784, p < 0.010) were more afraid than people in MNAWR (Figure 4; Supplementary Table B).
Factors Affecting Attitudes Toward Jaguars
Three main factors were correlated with attitudes toward jaguars (N = 355 interviews): gender, beliefs about the prevalence of human casualties from jaguar attacks, and subjective norms regarding jaguar killing. Gender correlated with attitudes such that women had more negative attitudes toward jaguars than men did (β = −0.682, p = 0.001). In addition, people who believe that jaguars kill more people than dogs do were more negative toward jaguars (β = 0.248, p = 0.003) than those who did not believe this. People who perceived their family members as approving of jaguar killing also had more negative attitudes toward jaguars (β = −0.249, p < 0.001). Study area was not significant and did not appear in the highest-ranking model (Supplementary Table C).
Factors Affecting Attitude Toward Killing Jaguars
The highest-ranking predictive model included three factors that correlate with a person's attitude toward killing jaguars (N = 355 interviews). The first factor, was having been attacked by a jaguar or knowing someone who has been attacked by a jaguar, was a strong determinant of positive feelings about killing jaguars (β = 1.036, p < 0.001). Two measures of subjective norms regarding jaguar killing, family members' (β = 0.235, p = 0.007) and neighbors' approval (β = 0.310, p = 0.004) of the action, were also strong determinants of positive attitudes toward killing jaguars. There was a significant difference in attitude toward killing jaguars among the three study areas, with people in Santa Rosa more likely to evaluate killing jaguars as bad (β = −1.424, p < 0.001) compared to the other two areas (Supplementary Table D).
Factors Affecting Past Jaguar Killings
Several factors were correlated with whether a person had killed a jaguar in the past (N = 355 interviews). Older people were more likely to have killed a jaguar in the past (β = 0.7711, p < 0.001), and so were people who regularly hunt (β = 0.485, p = 0.153). People who had experienced a jaguar attack (β = 0.597, p < 0.072) or had their domestic animals attacked by a jaguar (β = 0.858, p < 0.001) were also more likely to have killed a jaguar, as were people who perceived their families as feeling favorably toward jaguar killing (β = 0.338, p < 0.001). The proportion of respondents who had killed a jaguar in the past was different among study areas, with Tacana II being higher (β = −1.424, p < 0.001) and Santa Rosa lower (β = −1.424, p < 0.001) than the reference category MNAWR (Supplementary Table E).
Attitudes Toward Jaguars and Jaguar Killing
Our results revealed negative perceptions of jaguars in the context where cattle depredation by jaguars in not an issue. Overall, people in the protected territories addressed in this study either disliked or felt neutral toward jaguars. Negative attitudes toward jaguars are not uncommon (Zimmermann et al., 2005; Cavalcanti et al., 2010; Castaño-Uribe et al., 2016; Porfirio et al., 2016), but are often attributed to livestock loss and resulting economic cost (Rosas-Rosas and Valdez, 2010; Parker et al., 2014; Amit and Jacobson, 2017). However, fear and opportunistic encounters, as reported by participants in this study, can also increase negative attitudes (Cavalcanti et al., 2010; Castaño-Uribe et al., 2016). Perceptions of jaguars in indigenous communities vary across studies. For instance, Steinberg (2016) reported negative perceptions of jaguars in Mayan hunters in Belize while Figel et al. (2011) described positive attitudes toward the large carnivore in indigenous/community-conserved areas of Mexico. Finally, Kelly (2019) conveyed that Cabécar from Costa Rica had more conflicts with felines than the Ticos (non-indigenous counterparts).
Despite legal restrictions on jaguar killing across the species' range, persecution by humans is a significant threat to the species (Zeller, 2007; Galetti et al., 2013). Our results indicate that jaguar killing is relatively common in northern Bolivia. In Tacana II, over half of interviewees said either they or their spouse had killed at least one jaguar. Similar to other studies (Carvalho and Pezzuti, 2010; Carvalho, 2019), people talked about this behavior openly. This willingness to share this information may account for the higher descriptive and subjective norms concerning jaguar killing in the Tacana II study area. Fewer people said they had killed a jaguar in the past in Santa Rosa (20.39%) and MNAWR (32.72%), but respondents in both areas still perceived jaguar killing as relatively common, and people made little attempt to keep it secret. Overall, people who had killed jaguars had last done so relatively recently; with more than half saying, they killed a jaguar within the last 5 years. Jaguar persecution without cattle loss has been reported elsewhere (Jȩdrzejewski et al., 2017; Bredin et al., 2018), indicating that killing is not solely retaliatory. Considering the recent reports of trafficking of jaguar parts in Bolivia (Nuñez and Aliaga-Rossel, 2017) and the relatively high levels of jaguar killing reported in our interviews, persecution of jaguars likely represents a significant threat to jaguar survival in northern Bolivia.
Attacks on Humans: Beliefs, Fear, and Risk Evaluations
Jaguar attacks on humans are remarkably rare compared to other large felids (Marchini and Luciano, 2009; Neto et al., 2011). Nevertheless, significant proportions of interviewees in each area said they had experienced or knew someone who had experienced a jaguar attack (Santa Rosa: 15.45%, MNAWR: 14.20%, Tacana II: 30.88%). This finding is not unheard of: in the Pantanal, nearly a third (29.5%) of interviewees said they had heard of a jaguar attack (Santos et al., 2008) despite the only documented, fatal attack by a jaguar on a human in Brazil occurring later that year (June 24, 2008). In southwestern Bolivia, nearly half of ranchers interviewed in 2011 considered large felids a threat to human safety (Conforti and De Azevedo, 2003; Porfirio et al., 2016; Villalva and Palomares, 2019). Given the discrepancy between evidence of jaguar attacks on humans and the proportion of interviewees who reported experiencing or knowing someone who had experienced a jaguar attack, non-confrontational encounters with the species may incite enough fear in residents to be described as attacks. It is also possible that our results reflect a common story about a notable past attack in the region. During interviews, respondents mentioned a story about a young man who was attacked by a jaguar while collecting Brazil Nuts. However, the origin of the story was unclear since, in the different areas, people claimed the attack occurred in their region. Stories, or myths, are intertwined with our beliefs, values, actions (Gottschall, 2012; Fort et al., 2018). Hearing stories about a jaguar attack may influence jaguar killing, as fear of large carnivores can be incited through knowledge of an attack (Dickman, 2010; Kelly, 2019) and the perception of the jaguar as threatening to humans is associated with attitudes toward jaguar killing in the Amazon (Carvalho, 2019).
In any case, the relatively large number of interviewees who reported a supposed attack on themselves or someone they know is concerning for jaguar survival in northern Bolivia. Similarly to other studies (Kellert and Berry, 1987; Røskaft et al., 2003; Johansson et al., 2012), female respondents reported more fear of the large carnivore than male respondents reported. Fear has been shown to affect intention to kill jaguars (Marchini and Macdonald, 2012; Engel et al., 2016) and other large carnivores (Flykt et al., 2013), and our findings support this association. Most respondents who had killed a jaguar in the past said they did so out of fear or self-defense. Fear is the most relevant emotion toward large carnivores (Johansson et al., 2012; Jacobs and Vaske, 2019) and has negatively affected the way people experience wildlife (Engel et al., 2016; Kelly, 2019). Reported jaguar attacks on humans were related to both attitudes toward killing and killing behavior, although the nature of that relationship differed by region and type of experience. In Santa Rosa and Tacana II, respondents who reported a supposed jaguar attack on themselves or someone they know were more supportive of killing and more likely to have killed jaguar in the past. The similar influence of attack experiences on jaguar killing between Santa Rosa and Tacana II is interesting, given their differing numbers of attack experiences and past jaguar killing. Twice as many people in Tacana II reported past attack experiences compared to reports in Santa Rosa. In addition, far more respondents in Tacana II said they had killed a jaguar than in Santa Rosa. An association between experiencing a wildlife attack and low tolerance of the species responsible has been shown with other large carnivores, like tigers (Inskip et al., 2016).
Despite the significant number of interviewees that reported experiencing or knowing someone who had experienced an attack, people in all three areas believed the risk of a future jaguar attack was low (Table 1). This discrepancy between reported attack experiences and perceptions of future risk contradicts the logical association between risk perception and past experience, which has been shown in relation to carnivores (Lute and Gore, 2019). However, a similar discrepancy between negative experiences with jaguars and the perceived impact of jaguars on human safety was noted by Marchini and Macdonald (2018) in Amazonia and in the Pantanal. We hypothesize that this discrepancy could be due to the way in which we assessed perceived risk. Of the two constructs of risk perception, we examined the cognitive one by measuring the perceived probability of future jaguar attacks, which can only partially explain human behavior toward large carnivores (Sjöberg, 1998; Lute and Gore, 2019). The relationship we found between experiencing or hearing about a jaguar attack on humans and past jaguar persecution, despite low cognitive risk perceptions in all three areas, is indicative of this. Thus, our results support the need to include measurements of the affective component of risk perception (e.g., dread, worry) in studies of the relationship between perceived risk and behavior toward large carnivores.
Drivers of Jaguar Persecution
In our study, predictors of jaguar killing and attitudes toward this behavior differed in character and effect size among the three study areas. Our findings, like previous studies on regional diversity in determinants of intention to kill jaguars (Marchini and Macdonald, 2012) and perceptions of jaguars (Santos et al., 2008), highlight the need for regionalized conservation interventions.
The Importance of Stakeholder Characteristics
In general, more demographic variables were related to attitudes toward jaguar killing than were associated with the behavior itself. The effect of demographics varied by region: for example, only gender was related to behavior in Tacana II and MNAWR. In all three-study areas, however, women were less positive about jaguars than men and evaluated jaguar persecution more favorably. Previous studies have indicated a similar gender difference in tolerance of large carnivores (Kellert and Berry, 1987; Campbell and Alvarado, 2011; Harvey et al., 2017; Mkonyi et al., 2017). Age was a significant predictor of past jaguar killing in MNAWR, but not in the other two areas. It might be that older people were more likely to have killed a jaguar in the past than younger people were, given that they have lived with jaguars for longer. However, it is also possible that this relationship reflects changing behavior toward jaguars. Some studies have indicated that attitudes toward wildlife are becoming more positive in some segments of the populations, possibly due to societal shifts such as urbanization and education (Manfredo et al., 2003, 2009; Sponarski et al., 2013).
In Santa Rosa, ethnic origin influenced attitudes toward killing and past behavior. Contrary to Tacana II and MNAWR, the sample population in Santa Rosa included two different ethnic origins: Amazonian (like Tacana II and MNAWR) and Andean. Andean participants held more positive attitudes toward jaguars than Amazonian residents did. The influence of ethnic origin on tolerance may be due to less experience with the predator. The people of Andean origin in Santa Rosa come from a different socio-ecological context, and more are farmers. They began coexisting with jaguars relatively recently when they arrived in Santa Rosa less than a decade ago. The Andean population in Santa Rosa may explain the lower rates of perceived attack experience and reported jaguar killing in Santa Rosa compared to Tacana II and MNAWR, as they have lived with jaguars for far less time than the Amazonian population. However, our findings contradict those of previous studies that have found long-term exposure to large carnivore-related risks leads to more positive attitudes toward the species (Røskaft et al., 2003; Mkonyi et al., 2017; Glikman et al., 2019). Cultural differences between Amazonian and Andean social groups may also play a role. Sociocultural influences can be significant determinants of attitudes toward carnivore management (Lute et al., 2014) and norms regarding livestock protection (Hazzah et al., 2009). Studies have also indicated that sociocultural factors can affect behavior toward large carnivores, including intention to kill wild cats (Harvey et al., 2017), intention to kill jaguars (Marchini and Macdonald, 2012), retaliatory killing of wolves (Mishra, 1997), and retaliatory killing of bears (Liu et al., 2011).
Experiences: Perceived Attacks and Depredation
The effect of livestock loss on attitudes toward carnivores varies between studies and contexts, with some reporting a strong relationship (Dickman, 2008; Kissui, 2008) and others no direct relationship at all (Conforti and De Azevedo, 2003; Mkonyi et al., 2017). Experiencing or knowing someone who experienced a perceived jaguar attack on humans predicted jaguar killing in Santa Rosa and Tacana II. Jaguar attacks on domestic animals were also related to persecution in all three areas. However, the effect of depredation on killing was minimal, and only Tacana II was the experience a significant predictor of jaguar persecution. Jaguars represent a significant and well-documented threat to livestock throughout their range (Crawshaw, 2004; Zimmermann et al., 2005; Cavalcanti et al., 2010; Marchini and Macdonald, 2012; Amit et al., 2013; Amit and Jacobson, 2017), and perceived impact on livestock is a predictor of intent to kill jaguars for cattle ranchers in Brazil (Marchini and Macdonald, 2012). Our results show a smaller relationship between domestic animal loss and persecution than that shown in the Brazilian Amazonia and Pantanal (Marchini and Macdonald, 2012) and other cattle-ranching populations (Jȩdrzejewski et al., 2017). This difference in magnitude may be because domestic animals are not the primary livelihood for people living in and around the northwestern Bolivian Amazon. Our findings show transcendence of the effect of depredation on killing behavior beyond livestock-reliant populations, albeit to a smaller degree.
In all three-study areas, attitudes toward jaguars were generally unrelated to past jaguar killing. More surprisingly, attitude toward jaguar killing was also unrelated to killing jaguars in the past, in contrast to research indicating attitude toward jaguar persecution as a predictor of intention to kill jaguars (which has been empirically linked to the action of killing jaguars; Marchini and Macdonald, 2012). Currently, our results indicate that conservation strategies focused on changing attitudes toward jaguars and jaguar persecution may not be effective in this region of Bolivia. However, considering that attitudes toward large carnivores can change over time (Majić and Bath, 2010; Majić et al., 2011), continued monitoring of the relationship between attitudes and jaguar killing would be prudent.
Norms regarding acceptable behavior in a social group can govern actions toward wildlife independently of legal restrictions (Gore et al., 2013; Hazzah et al., 2014). In Brazil's Pantanal region, for example, the Pantaneiro identity is linked to jaguar persecution because of the normative belief that the behavior is common and acceptable within the social group (Marchini and Macdonald, 2012). Social motivations were important determinants of attitudes toward persecution in all study areas and past killing of jaguars in different proportions among study areas. Especially in Tacana II, the proportion of people who thought their neighbors felt favorable about killing jaguars (i.e., descriptive norms) also felt favorable about this behavior and were more likely to have killed one in the past. Furthermore, the perception that jaguar killing is common and acceptable may cause more jaguars to be killed, especially if hunting stories are remembered and repeated, creating a vicious circle (Marchini and Macdonald, 2012). In addition, effect of subjective norms (i.e., perception of others approving killing jaguars) did vary by area. It had a larger influence on attitudes toward jaguar killing in Tacana II than in Santa Rosa and MNAWR.
Future Jaguar Conservation Strategies
In northwest Bolivia, local indigenous people are living and working close to jaguars. This proximity is both a risk and an opportunity for jaguar conservation. On the one hand, if conservation efforts do not succeed, the close relationship local people have with jaguars could be a considerable threat to the species' survival. On the other hand, the support and involvement of local communities can aid conservation interventions, and their presence sometimes protects wildlife populations. In this study, we generally show negative attitudes toward jaguars in northwest Bolivia and rates of self-reporting past jaguar killing that raise concern. Given the increased jaguar trafficking in Bolivia over the past few years (Nuñez and Aliaga-Rossel, 2017), these results corroborate an urgent need for jaguar conservation in Bolivia. The current lack of tolerance for jaguars, combined with increasing pressure from development, a burgeoning jaguar trade, and Chinese immigration into the area, can create an atmosphere conducive to widespread jaguar killing.
The jaguar is important to Bolivia, culturally, symbolically, and economically (through tourism dollars). Furthermore, the relationship between subjective norms and both attitudes toward killing and past killing of jaguars found in this study shows the power of social influence. People who felt their neighbors disapproved of killing jaguars felt worse about the action themselves and were less likely to have killed a jaguar in the past. As such, the importance of attitudes toward wildlife, although often characterized as essential to wildlife conservation success (Wang et al., 2006; Palmeira et al., 2008; Ogra, 2009; Hariohay et al., 2018), may not apply to communities in northern Bolivia.
In all three study areas, attitudes toward jaguars and killing jaguars were both unrelated to whether an individual killed a jaguar in the past. Thus, how people perceive their communities feel about killing jaguars may be more important as a conservation target than how individuals themselves evaluate the behavior. This finding is significant to conservation because social norms can be changed. For example, conservation efforts targeting well-respected individuals or institutions in a community can influence the social acceptability of specific behaviors (Veríssimo, 2013; Veríssimo and McKinley, 2016; Jones et al., 2019; Marchini and Macdonald, 2019). Furthermore, measurements of conservation success may need to include levels of persecution, rather than solely attitudes and beliefs, even though the behavior can be a more sensitive topic given legal regulations and potential consequences.
This study should be seen as an exploration of human-jaguar relationships in a little-studied setting—non-cattle ranching communities in legally-protected territories of the northern Bolivian Amazon. Our findings, especially those indicating high levels of jaguar killing and perceived jaguar attacks on humans, support the urgent need for further research in this area to better understand why people kill jaguars and how to prevent killing effectively. In particular, a predictive model of intention to kill jaguars would be useful for conservation efforts. One possible tool for further investigation is the Theory of Planned Behavior, which examines how attitudes, norms, and perceived behavior controls influence behavior intentions and has been used in the context of jaguar persecution in cattle-ranching communities (Marchini and Macdonald, 2012, 2018). Also, research should focus on ways to cause changes in the killing by looking at the efficacy of alternative interventions to change human behavior in human-wildlife conflict situations.
A combination of demographic variables, experiences, and psychological and social motivations influences attitude toward jaguars and jaguar persecution. Furthermore, their relative importance in determining attitudes and past behavior differs between areas of northern Bolivia. Our findings indicate the prevalence of jaguar persecution in northern Bolivia and highlight the need for conservation interventions. Our findings also show how specific the determinants of attitude and behavior can be to a community, how influential negative experiences with jaguars can be in determining jaguar persecution, and the power of social norms on both attitudes toward killing and the behavior itself. It would be impossible to construct an effective jaguar conservation strategy in any of our study areas based on one category of influence.
We suggest strategies to prevent jaguar killing in northern Bolivia should focus on changing social norms related to persecution and lessening negative experiences—both tangible and intangible—with the species. Lastly, this study highlights how specific the determinants of attitude and behavior can be to a population. Such variation underlines the importance of understanding the communities in which conservation interventions are employed. Therefore, a multi-stakeholder approach to conservation that includes local people in decision-making is essential. As the pressure of jaguars in Bolivia increases, indigenous and other communities living with jaguars in protected areas will be essential to the species survival. There is an urgent need to find ways to limit conflict surrounding jaguar conservation, change social norms toward jaguar killing, and find ways to mitigate jaguar persecution in the northwestern Bolivian Amazon so that they may continue to inhabit this area.
Data Availability Statement
All datasets generated for this study are included in the article/Supplementary Material.
The studies involving human participants were reviewed and approved by Miami University Ohio IRB for Human Subject Research, Protocol Number 03252e. Written informed consent for participation was not required for this study in accordance with the national legislation and the institutional requirements.
JK was a lead author contributing to writing all sections under the supervision of JG. JK together with NN and JG conceptualized the paper. NN and SM designed the social science methodology. KB, GG, and PB have collected the data. JG contributed writing the theoretical background and method sections. MT contributed writing the introduction, the discussion, run all the analyses for the revised version and produced the map. All authors assisted with multiple rounds of editing and approved publication.
Funds for this project were provided by ACEAA-Conservación Amazónica, La Paz, Bolivia. Thanks are due to FCT/MCTES for the financial support to CESAM (UID/AMB/50017/2019), through national funds. Funds for open access publication fees were provided by Institute for Conservation Research, San Diego Zoo Global, San Diego, California, USA.
Conflict of Interest
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
The Supplementary Material for this article can be found online at: https://www.frontiersin.org/articles/10.3389/fevo.2019.00494/full#supplementary-material
5. ^ACEAA unpublished data
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Keywords: jaguars, large carnivores, human dimensions, coexistence, protected areas, Bolivia, Amazon, conservation psychology
Citation: Knox J, Negrões N, Marchini S, Barboza K, Guanacoma G, Balhau P, Tobler MW and Glikman JA (2019) Jaguar Persecution Without “Cowflict”: Insights From Protected Territories in the Bolivian Amazon. Front. Ecol. Evol. 7:494. doi: 10.3389/fevo.2019.00494
Received: 29 August 2019; Accepted: 03 December 2019;
Published: 19 December 2019.
Edited by:Tasos Hovardas, University of Cyprus, Cyprus
Reviewed by:Krzysztof Schmidt, Mammal Research Institute (PAN), Poland
Amit Ronit, University of Costa Rica, Costa Rica
Copyright © 2019 Knox, Negrões, Marchini, Barboza, Guanacoma, Balhau, Tobler and Glikman. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
*Correspondence: Jenny A. Glikman, firstname.lastname@example.org