The mitigation of conflicts associated with large carnivore damage to livestock and agriculture is pivotal to their conservation. We evaluate current programs to compensate and prevent large ...carnivore damage in 27 European countries and the factors related to the economic costs of these programs. Overall, high compensation costs are associated with free-ranging livestock (68% of total costs) and with national economic wealth. Contrary to general belief, the return of large carnivores does not always translate into higher compensation costs. We identify a tendency towards prioritizing compensation over prevention; only a few wealthy countries pay the majority of the money allocated for prevention programs to adapt husbandry practices to the presence of large carnivores. We conclude that programs mainly focused on paying large compensation amounts will often fail to build tolerance towards predators. To mitigate conflicts and optimize the cost-effectiveness of publicly funded measures, responsible agencies should be proactive, focus on prevention-based policies and periodically evaluate the effectiveness of compensation and prevention programs in an adaptive manner. With this purpose and to identify further solutions for conflict mitigation, we call for a pan-European database of damage occurrence, management actions and associated costs.
•Wealthy countries tend to spend more to compensate large carnivore damage in Europe.•High compensation and prevention costs are associated with free-ranging livestock.•Large carnivores' return does not always translate into high compensation costs.•Only few European countries subsidize preventive measures on a regular basis.•Compensation alone will often fail to build tolerance towards predators.
Large carnivores, such as wolves and lynx, are strictly protected by law in most European countries. However, they are still vulnerable due to habitat loss and illegal hunting. The Bohemian Forest ...Ecosystem lynx population is exemplary as a reintroduced carnivore population in Central Europe. The population expanded rapidly after the reintroduction (phase I) but then declined and stagnated at a low population size (phase II). There is some evidence that illegal hunting might have caused this development, but reliable data on the intensity of illegal hunting is lacking, and hence long-term consequences for the population cannot be assessed. We used a spatially-explicit individual-based dispersal and population model to inversely fit mortality probabilities to long-term monitoring data; the model integrated both chance observations and telemetry data, and discriminated between baseline mortality, road mortality and added unknown mortality. During phase I, the estimated added unknown mortality ranged between 3 and 4%, with an extinction rate < 5%; during phase II, the estimated added unknown mortality reached 15–20%, which would prevent animals from colonizing new habitat patches. The probability of extinction in phase II ranged between 13 and 74%, thereby reaching a tipping point at which the additional unknown mortality of a few animals could drive the population to extinction. However, when we considered the national parks as fully protected, the extinction probability dropped to <1%. Based on our results, we conclude that the added unknown mortality is most likely explained by illegal hunting and therefore the highest priority for the conservation of the lynx population in the Bohemian Forest Ecosystem should be the prevention of illegal hunting in national parks and their immediate surroundings.
The ranges of wolves (Canis lupus) and bears (Ursus arctos) across Europe have expanded recently, and it is important to assess public attitudes toward this expansion because responses toward these ...species vary widely. General attitudes toward an object are good predictors of broad behavioral patterns; thus, attitudes toward wolves and bears can be used as indicators to assess the social foundation for future conservation efforts. However, most attitude surveys toward bears and wolves are limited in scope, both temporally and spatially, and provide only a snapshot of attitudes. To extend the results of individual surveys over a much larger temporal and geographical range so as to identify transnational patterns and changes in attitudes toward bears and wolves over time, we conducted a meta‐analysis. Our analysis included 105 quantitative surveys conducted in 24 countries from 1976 to 2012. Across Europe, people's attitudes were more positive toward bears than wolves. Attitudes toward bears became more positive over time, but attitudes toward wolves seemed to become less favorable the longer people coexisted with them. Younger and more educated people had more positive attitudes toward wolves and bears than people who had experienced damage from these species, and farmers and hunters had less positive attitudes toward wolves than the general public. For bears attitudes among social groups did not differ. To inform conservation of large carnivores, we recommend that standardized longitudinal surveys be established to monitor changes in attitudes over time relative to carnivore population development. Our results emphasize the need for interdisciplinary research in this field and more advanced explanatory models capable of capturing individual and societal responses to changes in large carnivore policy and management.
Co-occurrence with humans presents substantial risks for large carnivores, yet human-dominated landscapes are increasingly crucial to carnivore conservation as human land use continues to encroach on ...wildlife habitat. Flexibility in large carnivore behavior may be a primary factor mediating coexistence with people, allowing carnivores to calibrate their activity and habitat use to the perceived level of human risk. However, our understanding of how large carnivores adjust the timing and location of behaviors in response to variations in human activity across the landscape remains limited, impacting our ability to identify important habitat for populations outside of protected areas. Here we examine whether African lions (Panthera leo) modify their behavior and habitat use in response to risk of a human encounter, and whether behavior-specific habitat selection allows lions to access feeding opportunities in a human-dominated landscape in Kenya. We determined fine-scale behavioral states for lions using high-resolution GPS and accelerometer data, and then investigated behavior-specific habitat selection at multiple temporal and spatial scales (ranging from 15 minutes to 12 hours and from approximately 200 meters to several kilometers). We found that lions exhibit substantial differences in habitat selection with respect to humans based on behavioral state and time of day. During the day, when risk of human encounter is highest, lions avoided areas of high human use when resting, meandering, and feeding. However, lions specifically selected for habitat near people when feeding at night. Flexible habitat use by lions thus permits access to prey, which appear to concentrate in areas near humans. The importance of habitat near people for feeding was only apparent when analyses explicitly accounted for lion behavioral state and spatiotemporal scale, highlighting the necessity of incorporating such information when investigating human impacts on large carnivore habitat use. Our results support the contention that behavior-specific habitat selection promotes carnivore persistence in human-dominated landscapes, demonstrating the importance of considering not just whether but how large carnivores use habitat near humans when managing vulnerable populations.
International conservation efforts and prohibitionary drug intersect in unexpected ways throughout the Mesoamerican Biological Corridor (MBC). US-led counterdrug interdiction of transnational cocaine ...trafficking, or ‘narco-trafficking’, is increasingly pushing narco-traffickers and their associated environmental destruction into protected areas (PAs) to establish new smuggling routes. These locations are also where the greatest densities of jaguars (Panthera onca), an iconic and declining species, are found in Central America. Intersecting two geospatial datasets estimating 1) jaguar densities and 2) changes in landscape suitability for drug trafficking following counterdrug interdiction pressure, we estimated that roughly 69 % of the estimated population of jaguars in the MBC were found in areas of increased suitability for narco-traffickers. Moreover, jaguar populations within PAs were 2.5 and 34 times more likely to be in increased narco-trafficking suitability areas than those in jaguar corridors or other area without conservation designations, respectively. These findings illustrate the full costs of continuing current counterdrug interdiction policies alongside conventional conservation strategies and suggest that community-based conservation governance may more effectively discourage narco-trafficking activities and enhance conservation outcomes.
•Supply-side counterdrug interdiction pushes cocaine trafficking, or ‘narco-trafficking’, activities into remote areas•Jaguars in protected areas and corridors are at greater risk from clandestine activities than those in non-protected areas•Full accounting of collateral damages from U.S. drug policy would significantly raise the cost estimates of the War on Drugs•Renewed investment in community-based conservation approaches is an alterative to militarized drug control policy
The recovery of large carnivores in human-dominated landscapes comes with challenges. In general, large carnivores avoid humans and their activities, and human avoidance favors coexistence, but ...individual variation in large carnivore behavior may occur. The detection of individuals close to human settlements or roads can trigger fear in local communities and in turn demand management actions. Understanding the sources of individual variation in carnivore behavior towards human features is relevant and timely for ecology and conservation. We studied the movement behavior of 52 adult established wolves ((Canis lupus), 44 wolf pairs) with GPS-collars over two decades in Scandinavia in relation to settlements, buildings, and roads. We fit fine-scale movement data to individual step selection functions to depict the movement decisions of wolves while travelling, and then used weighted linear mixed models to identify factors associated with potential individual pair deviations from the general behavioral patterns. Wolves consistently avoided human settlements and main roads, with little individual variation. Indeed, after correcting for season, time of the day, and latitude, there was little variability in habitat selection among wolf pairs, demonstrating that all wolf pairs had similar movement pattern and generally avoided human features of the landscape. Wolf avoidance of human features was lower at higher latitudes particularly in winter, likely due to seasonal prey migration. Although occasional sightings of carnivores or their tracks near human features do occur, they do not necessarily require management intervention. Communication of scientific findings on carnivore behavior to the public should suffice in most cases.
1. The United Nations recently listed illegal wildlife trade as a serious crime because of the escalating demand for highly prized species, such as tiger and rhinoceros, and the failure to ...effectively control the trade. In turn, this places greater urgency on reducing supply by securing source populations of these species. Yet, whether law enforcement strategies designed to mitigate poaching are succeeding remains poorly understood, despite the millions of dollars invested annually in this mainstay conservation strategy. 2. Here, we assess the performance of one of Asia's longest running law enforcement programmes, from Kerinci Seblat National Park in Sumatra, by investigating whether forest ranger patrols reduced the occurrence of snare traps set for tiger and its ungulate prey base; local informant reports on poaching influenced ranger patrol success; and the resulting population trends of target species changed in response to these conservation actions. 3. A total of 4433 snare traps were removed during 642 foot patrols conducted from 2000 to 2010. Controlling for the influence of varying detection probabilities, as well as accessibility and other possible determinants of illegal hunting, revealed that sites with a greater frequency of patrols, rather than the combined distance walked, had a lower occurrence of snare traps in succeeding years. 4. Patrols conducted on the basis of local informant 'tip-offs' were significantly more likely to detect snare traps than routine patrols, with reports increasing detections by over 40%. 5. There were no significant changes in the occupancy status of the tiger prey base from 2004 to 2011, suggesting that it remained stable during this period. The relatively good condition of prey and predator populations in Kerinci Seblat National Park was further supported by the results of an independent survey conducted in 2008-2009 which revealed a widespread tiger occurrence. 6. Synthesis and applications. Our results not only demonstrate the effectiveness of the Kerinci Seblat law enforcement strategy in protecting wildlife, but highlight the benefits from cultivating a network of reliable informants. The study also represents a critical step in helping these urgently needed conservation assessments to become common place in the fight to save flagship species.
Recent reports of jaguar trade have emerged throughout Latin America, but, although trade is now considered a high-priority threat to jaguars, its characteristics remain largely unknown. We aimed to ...gain a deeper understanding of the status of jaguar trade in Mesoamerica, focusing on Belize and Guatemala. We used key-informant interviews to explore the pathways behind the jaguar trade chain, identify the characteristics and motivations of the actors involved, and investigate the drivers and enabling factors behind jaguar trade. We distinguished between concrete evidence and strong beliefs or assumptions, thereby highlighting key areas for conservation action and of uncertainty. Our results suggest that jaguar trade is present in Belize and Guatemala, although current examples suggest it is a domestically-focused and opportunistic activity, rather than an organized international trade. Key drivers included human-wildlife conflict, opportunistic hunting, Chinese demand, drug trafficking, migration, and tourism. The areas of higher uncertainty are the role of external actors and drivers, and of commercial motivations. The main legal and institutional challenges to address this threat include the lack of resources, ineffectiveness of law enforcement, animosities between communities and the government, corruption, outdated legal systems, missing evidence, the lack of mandate of wildlife authorities and safety concerns. Key priorities for conservation interventions and research to prevent jaguar trade from escalating in these countries are to invest in local communities living in proximity to jaguars, while also investigating the role of external actors in jaguar trade, which remained largely uncertain throughout this study.
•Jaguar trade is a domestic activity driven largely by local actors.•Non-profit motivations and opportunistic drivers are predominant and well-evidenced.•Demand from external players, although more uncertain, deserves attention.•Legal and institutional weaknesses enable jaguar trade.•Separating concrete examples from assumptions supports evidence-based conservation.
1. Wildlife damage to human property threatens human-wildlife coexistence. Conflicts arising from wildlife damage in intensively managed landscapes often undermine conservation efforts, making damage ...mitigation and compensation of special concern for wildlife conservation. However, the mechanisms underlying the occurrence of damage and claims at large scales are still poorly understood. 2. Here, we investigated the patterns of damage caused by brown bears Ursus arctos and its ecological and socio-economic correlates at a continental scale. We compiled information about compensation schemes across 26 countries in Europe in 2005-2012 and analysed the variation in the number of compensated claims in relation to (i) bear abundance, (ii) forest availability, (iii) human land use, (iv) management practices and (v) indicators of economic wealth. 3. Most European countries have a posteriori compensation schemes based on damage verification, which, in many cases, have operated for more than 30 years. On average, over 3200 claims of bear damage were compensated annually in Europe. The majority of claims were for damage to livestock (59%), distributed throughout the bear range, followed by damage to apiaries (21%) and agriculture (17%), mainly in Mediterranean and eastern European countries. 4. The mean number of compensated claims per bear and year ranged from 0-1 in Estonia to 8-5 in Norway. This variation was not only due to the differences in compensation schemes; damage claims were less numerous in areas with supplementary feeding and with a high proportion of agricultural land. However, observed variation in compensated damage was not related to bear abundance. 5. Synthesis and applications. Compensation schemes, management practices and human land use influence the number of claims for brown bear damage, while bear abundance does not. Policies that ignore this complexity and focus on a single factor, such as bear population size, may not be effective in reducing claims. To be effective, policies should be based on integrative schemes that prioritize damage prevention and make it a condition of payment of compensation that preventive measures are applied. Such integrative schemes should focus mitigation efforts in areas or populations where damage claims are more likely to occur. Similar studies using different species and continents might further improve our understanding of conflicts arising from wildlife damage.
Expansion of human activities into large carnivore habitats and of large carnivore ranges into anthropogenic settings increase the potential for human-wildlife conflicts. Future carnivore survival ...and recovery depend on both their ability to adapt to human-modified landscapes and the application of adequate conservation strategies. We review human-related factors that negatively affect brown bears inhabiting human-modified landscapes, aiming to improve human-bear coexistence. Brown bears have triggered much research and a review on this model species should be useful for the conservation-oriented management of many large carnivores. In human-modified landscapes, main threats to bear populations are human settlements, habituation and availability of anthropogenic food, density and traffic load of roads and railways, and recreational and industrial activities. Main effects of coexistence with humans for bears are: increased disturbance, human-bear conflicts and human-caused mortality; behavioural alterations; reduced fitness and genetic diversity; and physiological alterations. To promote bear-human coexistence in human-modified landscapes, we identified nine key elements: reduction of human-induced mortality and use of scientific information for better assessment of new infrastructures; improve education on waste management and bear deterrence methods; safeguard and restore habitat connectivity; mitigate road effects and restrict motorized trail use; adjust viewing activity practices to local conservation status of bear populations and food availability; implement mitigation measures to minimize risk of human-bear encounters; quantify empirically the effects of recreational activities on the energetics and fitness of bears; better dissemination of scientific results and management guidelines; and further research on behavioural reactions of bears to different management regimes and persecution histories.
•Human expansion into bear ranges and viceversa can cause human-wildlife conflict.•Human activities cause multiple negative effects on brown bears worldwide.•Human-caused disturbance and mortality occur all around the globe.•Detected effects of human-bear coexistence should enlighten conservation strategies.•Conservation strategies must adapt locally to large carnivore population dynamics.
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