John D. C. Linnell

Recovery of large carnivores in Europe’s modern human-dominated landscapes

The conservation of large carnivores is a formidable challenge for biodiversity conservation. Using a data set on the past and current status of brown bears (Ursus arctos), Eurasian lynx (Lynx lynx), gray wolves (Canis lupus), and wolverines (Gulo gulo) in European countries, we show that roughly one-third of mainland Europe hosts at least one large carnivore species, with stable or increasing abundance in most cases in 21st-century records. The reasons for this overall conservation success include protective legislation, supportive public opinion, and a variety of practices making coexistence between large carnivores and people possible. The European situation reveals that large carnivores and people can share the same landscape. Many populations of brown bears, lynx, grey wolves, and wolverines persist successfully outside protected areas in Europe. Success for Europes large carnivores? Despite pessimistic forecasts, Europes large carnivores are making a comeback. Chapron et al. report that sustainable populations of brown bear, Eurasian lynx, gray wolf, and wolverine persist in one-third of mainland Europe. Moreover, many individuals and populations are surviving and increasing outside protected areas set aside for wildlife conservation. Coexistence alongside humans has become possible, argue the authors, because of improved public opinion and protective legislation. Science, this issue p. 1517

Habitat use and ecological correlates of home range size in a small cervid : the roe deer

1. Summer home range size variation and habitat selection of 35 radio-collared adult female roe deer was studied, using kernel home range estimation and compositional analysis of habitat use. 2. Female roe deer adjust the size of their home range in response to decreasing food supply, and the hypothesis that female roe deer utilize the minimum area that sustain their energy requirement cannot be rejected. 3. Home range size increased with the visibility in the home range (the average distance at which sight is blocked by intervening vegetation). This supports the hypothesis that cover is important in reducing the risk of predation and thereby increasing adult survival. 4. Female roe deer spend more time near habitat edges, supporting the hypothesis that different habitat types contain complementary resources, e.g. food and cover or different nutrients. Simultaneous access to several habitat types did not have any effect on home range size, possibly because variation in heterogeneity between different home ranges was too low. 5. Females without fawns had smaller home ranges, possibly because they only need to sustain their own energetic requirements. 6. The analyses of habitat selection inside each home range showed that the forest types, characterized by high densities of food and low visibility, were preferred, suggesting that habitat use is allocated in proportion to either food or cover or both.

Understanding and managing conservation conflicts.

Conservation conflicts are increasing and need to be managed to minimise negative impacts on biodiversity, human livelihoods, and human well-being. Here, we explore strategies and case studies that highlight the long-term, dynamic nature of conflicts and the challenges to their management. Conflict management requires parties to recognise problems as shared ones, and engage with clear goals, a transparent evidence base, and an awareness of trade-offs. We hypothesise that conservation outcomes will be less durable when conservationists assert their interests to the detriment of others. Effective conflict management and long-term conservation benefit will be enhanced by better integration of the underpinning social context with the material impacts and evaluation of the efficacy of alternative conflict management approaches.

Predators and people: conservation of large carnivores is possible at high human densities if management policy is favourable

In a recent analysis Woodroffe (2000) found a positive relationship between historical patterns of large carnivore extinction probability and human population density. However, much of the data in this analysis came from a period when carnivore extermination was a management objective. In order to explore the hypothesis that large carnivores can persist at high human densities when the management regime is more favourable we have repeated the analysis using up-to-date data from North America and Europe. In North America we found that large carnivore populations have increased after favourable legislation was introduced, despite further increases in human population density. In Europe we found no clear relationship between present carnivore distribution and human population density. We therefore believe that the existence of effective wildlife management structures is more important than human density per se.

Who killed Bambi? The role of predation in the neonatal mortality of temperate ungulates

A total of 111 papers and reports, coming from 79 major studies and 19 other studies, on neonatal (first summer) mortality of 10 species of northern, temperate ungulates were reviewed. To avoid biases from indirect techniques only studies on radio-collared neonates and/or their dams were included, apart from a few notable exceptions. Neonatal mortality rates observed for different studies averaged 47% (68 studies) in environments where predators occurred, with predation accounting for an average of 67% (53 studies) of this mortality. No other single cause of mortality exceeded that of predation, which accounted for 0–100% of the mortality recorded in various studies. In contrast, mortality averaged 19% for studies in environments lacking predators. Other prominent causes of mortality were hypothermia/starvation and accidents. Disease was found to play a small role only. The predator species involved varied greatly between study areas, with both medium sized (bobcat Lynx rufus, Canada lynx Lynx canadensis, coyote Canis latrans and red fox Vulpes vulpes) and large (wolf Canis lupus, mountain lion Felis concolor, black bear Ursus americana and brown bear Ursus arctos) terrestrial predators preying upon the neonates. Despite the prominent role of predation, little is known about its long-term compensatory or additive nature, and therefore its impact on population dynamics is unclear. Factors influencing predation rates are poorly understood, although a few studies found significant sex-biased predation, and effects of weather or juvenile/maternal body condition. Timing of mortality within the first summer varied with the predators involved and the neonatal security strategy of the species, but was not confined to the immediate post-partum period.

Translocation of carnivores as a method for managing problem animals: a review

Translocation of individual carnivores has been a standard management tool for decades in North America and southern Africa in response to livestock depredation and other conflict behaviours. As carnivore populations across Europe begin to increase it is expected that management problems will also increase. Before translocation becomes established as a management tool in Europe its success needs to be reviewed. In general, there has been very little follow-up of translocated animals. Almost no data exist on the subsequent levels of damage after translocation. Large carnivores have shown a consistent ability to return to the site of capture over distances of up to 400 km. Even those individuals that do not succeed in returning home roam over very large distances, best measured in units of hundreds of kilometres. Very few individuals remain at the release sites. Survival of translocated animals has occasionally been shown to be poor, often as a result of the large movements. In general, there needs to be a large area (hundreds or thousands of square kilometres) without conflict potential where the individuals can be released for the strategy to work. When such areas are not available, management efforts should concentrate on reducing conflict potential, or, where this is not practical, lethal control.

Patterns of self-reported fear towards large carnivores among the Norwegian public

Abstract In this paper, we analyse self-reported fear of four large carnivore species in a representative sample of the Norwegian population. People reported the most fear of the two largest and most dangerous carnivores, brown bears and wolves, and less fear of lynx and wolverines. Women expressed significantly more fear of these species than did men, and expressed fear increased with age in both sexes. Human population density had very little effect on the degree of self-reported fear of large carnivores, but people living in rural areas with one carnivore species in their vicinity expressed less fear of this species than people from rural areas where this carnivore species was absent. Activities related to experience with, or knowledge of, the large carnivores also effected fear patterns. People with higher education and those who expressed interest in outdoor activities like small game hunting and mountain hiking generally reported less fear than did respondents with lower education and no interest in outdoor activities, respectively. We argue that a good management strategy is to develop educational programs where people learn about the biology and habits of the large carnivores and are encouraged to gain first-hand outdoor experience in areas with large carnivores

Big Cats in Our Backyards: Persistence of Large Carnivores in a Human Dominated Landscape in India

Protected areas are extremely important for the long term viability of biodiversity in a densely populated country like India where land is a scarce resource. However, protected areas cover only 5% of the land area in India and in the case of large carnivores that range widely, human use landscapes will function as important habitats required for gene flow to occur between protected areas. In this study, we used photographic capture recapture analysis to assess the density of large carnivores in a human-dominated agricultural landscape with density >300 people/km2 in western Maharashtra, India. We found evidence of a wide suite of wild carnivores inhabiting a cropland landscape devoid of wilderness and wild herbivore prey. Furthermore, the large carnivores; leopard (Panthera pardus) and striped hyaena (Hyaena hyaena) occurred at relatively high density of 4.8±1.2 (sd) adults/100 km2 and 5.03±1.3 (sd) adults/100 km2 respectively. This situation has never been reported before where 10 large carnivores/100 km2 are sharing space with dense human populations in a completely modified landscape. Human attacks by leopards were rare despite a potentially volatile situation considering that the leopard has been involved in serious conflict, including human deaths in adjoining areas. The results of our work push the frontiers of our understanding of the adaptability of both, humans and wildlife to each other’s presence. The results also highlight the urgent need to shift from a PA centric to a landscape level conservation approach, where issues are more complex, and the potential for conflict is also very high. It also highlights the need for a serious rethink of conservation policy, law and practice where the current management focus is restricted to wildlife inside Protected Areas.

Biomedical Protocols for Free-ranging Brown Bears, Gray Wolves, Wolverines and Lynx Editors

PREFACE Compilation of this document was initiated by the Norwegian Directorate for Nature Management in order to establish recommended protocols for capture, chemical immobilization, anesthesia and radiotagging of free-ranging brown bears (Ursus arctos), gray wolves (Canis lupus), wolverines (Gulo gulo) and Eurasian lynx (Lynx lynx). In addition, procedures to ensure proper sampling of biological materials for management, research and banking purposes have been included. The current protocols are based on nearly 3,000 captures of free-ranging brown bears, wolves, wolverines and lynx carried out from 1984 through 2012 in Scandinavia. Some of the results have been published as peer reviewed papers, conference presentations, theses, and reports. However, a large amount of data are still on file and will be published in the future. In addition, comprehensive reviews of the global literature on brown bears, wolves, wolverines and lynx have been carried out in order to include pertinent information from other sources. These protocols have been approved by all ongoing research projects on brown bears, wolves, wolverines and lynx in Scandinavia. We thank the contributors for their cooperative efforts. We also thank the Norwegian Directorate for Nature Management for their support.

Winter Lynx Lynx lynx Predation on semi-domestic Reindeer Rangifer tarandus in Northern Sweden

The predation behaviour of six lynx Lynx lynx family groups, i.e. adult females with dependent kittens, was studied using radio-tracking and snow-tracking in the Sarek area of northern Sweden during winter 1995/96 and 1996/97. One hundred and six daily radio-locations were obtained, and 340 km of intervening tracks were followed in the snow. Forty-one scats were collected, and 57 hunting attempts, 37 of which were successful, were recorded. Semi-domestic reindeer Rangifer tarandus contributed over 90% to lynx ingested meat calculated from both scats and kills. Eighty-three percent of hunting attempts on reindeer, and 53% of attempts on small prey species, mainly Lagopus sp. and mountain hares Lepus timidus, were successful. Four incidents of multiple-killing of reindeer were documented. Reindeer were generally in poor body condition, with an average femur marrow fat content of 27%. Lynx spent an average of three nights at each reindeer kill-site. Reindeer were less completely consumed than small prey (61% vs 99%). The amount of meat eaten from a reindeer was proportional to the number of lynx-nights on the kill. An overall kill rate of one reindeer per five days was calculated. We concluded that reindeer are a very important food source for lynx in winter, which potentially could lead to problems in resolving the camivore-livestock conflicts in the region.