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Gonzaga MDC, Borges JRJ, Alves TS, de Sousa DER, de Castro MB, Câmara ACL. Domestic dog attacks on livestock referred to a Veterinary Teaching Hospital. Front Vet Sci 2024; 11:1342258. [PMID: 38450030 PMCID: PMC10914968 DOI: 10.3389/fvets.2024.1342258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 01/29/2024] [Indexed: 03/08/2024] Open
Abstract
Losses and the economic impact of dog attacks (DAs) on livestock are often overlooked and include factors such as decreased production, expenses for treatment and handling, and death of injured animals. This study evaluated the epidemiological, therapeutic, and pathological findings of DAs on livestock over an 11-year survey using the records of farm animals referred to a Veterinary Teaching Hospital. Livestock attacked by dogs included 31 sheep, 11 horses, 3 cattle, 3 goats, and 2 pigs, totaling 50 animals. Anatomical locations injured by dog bites were identified as head/neck, thoracic/pelvic limbs, abdomen/flank, rump/tail, and multiple affected regions (two or more bite sites). Additionally, the severity of the injuries was classified into four degrees adapted from the classification of dog bite injuries in children. Most livestock presented Grade 1 (26%) and Grade 2 (28%) injuries, while Grade 3 and Grade 4 injuries were observed in 46% of DAs. Furthermore, 35 animals (70%) were discharged, 9 (18%) died, and 6 (12%) were humanely euthanized. DAs may represent a significant cause for referring livestock species to clinical care, severe injuries, and a considerable number of deaths. In this study, we provide information regarding DAs on livestock for the first time in Midwestern Brazil.
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Affiliation(s)
- Mariana da Costa Gonzaga
- Large Animal Veterinary Teaching Hospital, College of Agronomy and Veterinary Medicine, Universidade de Brasília, Brasília, Federal District, Brazil
| | - José Renato Junqueira Borges
- Large Animal Veterinary Teaching Hospital, College of Agronomy and Veterinary Medicine, Universidade de Brasília, Brasília, Federal District, Brazil
| | - Teresa Souza Alves
- Large Animal Veterinary Teaching Hospital, College of Agronomy and Veterinary Medicine, Universidade de Brasília, Brasília, Federal District, Brazil
| | - Davi Emanuel Ribeiro de Sousa
- Veterinary Pathology Laboratory, College of Agronomy and Veterinary Medicine, Universidade de Brasília, Brasília, Federal District, Brazil
| | - Márcio Botelho de Castro
- Veterinary Pathology Laboratory, College of Agronomy and Veterinary Medicine, Universidade de Brasília, Brasília, Federal District, Brazil
| | - Antonio Carlos Lopes Câmara
- Large Animal Veterinary Teaching Hospital, College of Agronomy and Veterinary Medicine, Universidade de Brasília, Brasília, Federal District, Brazil
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2
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Žunna A, Ruņģis DE, Ozoliņš J, Stepanova A, Done G. Genetic Monitoring of Grey Wolves in Latvia Shows Adverse Reproductive and Social Consequences of Hunting. BIOLOGY 2023; 12:1255. [PMID: 37759654 PMCID: PMC10525079 DOI: 10.3390/biology12091255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 09/17/2023] [Accepted: 09/17/2023] [Indexed: 09/29/2023]
Abstract
Nowadays, genetic research methods play an important role in animal population studies. Since 2009, genetic material from Latvian wolf specimens obtained through hunting has been systematically gathered. This study, spanning until 2021, scrutinizes the consequences of regulated wolf hunting on population genetic metrics, kinship dynamics, and social organization. We employed 16 autosomal microsatellites to investigate relationships between full siblings and parent-offspring pairs. Our analysis encompassed expected and observed heterozygosity, inbreeding coefficients, allelic diversity, genetic distance and differentiation, mean pairwise relatedness, and the number of migrants per generation. The Latvian wolf population demonstrated robust genetic diversity with minimal inbreeding, maintaining stable allelic diversity and high heterozygosity over time and it is not fragmented. Our findings reveal the persistence of conventional wolf pack structures and enduring kinship groups. However, the study also underscores the adverse effects of intensified hunting pressure, leading to breeder loss, pack disruption, territorial displacement, and the premature dispersal of juvenile wolves.
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Affiliation(s)
- Agrita Žunna
- Latvian State Forest Research Institute Silava, Rīgas Str. 111, LV-2169 Salaspils, Latvia; (D.E.R.)
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3
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Ballarín J, García-Serrano A, Herrero J, Reiné R. Shepherds View of Large Carnivore Recovery in the Pyrenees, Spain. Animals (Basel) 2023; 13:2088. [PMID: 37443885 DOI: 10.3390/ani13132088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 06/17/2023] [Accepted: 06/19/2023] [Indexed: 07/15/2023] Open
Abstract
The studied farms are small family businesses, and so, in more than half of the cases, their continuity is not guaranteed. Livestock management is typical of a mountain system, in which the animals graze throughout the year in cultivated fields, sown meadows, forests near the farms, and mountain pastures during the three summer months. The herds always have the constant surveillance of a shepherd. Farmers consider the current infrastructure present in mountain grasslands insufficient to facilitate the management and care of their herd. Their activity conflicts with various species of wildlife, such as the wild boar, Sus scrofa, roe deer, Capreolus capreolus, or griffon vulture, Gyps fulvus, and large carnivores such as the brown bear, Ursus arctos, or the grey wolf Canis lupus, despite all of them taking preventive measures to defend their herds from predators. The most widely used prevention measures are the presence of mastiff dogs, Canis lupus familiaris, next to the herds and the use of electric fencing to lock up livestock at night. Farmers reject the presence of bears and wolves in their area, considering it a real threat to the continuity of their economic activity, which presents a high degree of vulnerability.
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Affiliation(s)
- José Ballarín
- Escuela Politécnica Superior, Universidad de Zaragoza, E-22071 Huesca, Spain
| | | | - Juan Herrero
- Escuela Politécnica Superior, Universidad de Zaragoza, E-22071 Huesca, Spain
| | - Ramón Reiné
- Escuela Politécnica Superior, Universidad de Zaragoza, E-22071 Huesca, Spain
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Merz L, Pienaar EF, Fik T, Muyengwa S, Child B. Wildlife institutions highly salient to human attitudes toward wildlife. CONSERVATION SCIENCE AND PRACTICE 2023. [DOI: 10.1111/csp2.12879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Affiliation(s)
- Leandra Merz
- Geography Department University of Florida Gainesville Florida USA
| | - Elizabeth F. Pienaar
- Warnell School of Forestry and Natural Resources University of Georgia Athens Georgia USA
- Mammal Research Institute University of Pretoria Pretoria South Africa
| | - Timothy Fik
- Geography Department University of Florida Gainesville Florida USA
| | - Shylock Muyengwa
- Peace Parks Foundations Maputo Mozambique
- Centre for Impact Evaluation and Research Design Harare Zimbabwe
| | - Brian Child
- Geography Department University of Florida Gainesville Florida USA
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Mitchell JD, Drymon JM, Vardon J, Coulson PG, Simpfendorfer CA, Scyphers SB, Kajiura SM, Hoel K, Williams S, Ryan KL, Barnett A, Heupel MR, Chin A, Navarro M, Langlois T, Ajemian MJ, Gilman E, Prasky E, Jackson G. Shark depredation: future directions in research and management. REVIEWS IN FISH BIOLOGY AND FISHERIES 2023; 33:475-499. [PMID: 36404946 PMCID: PMC9664043 DOI: 10.1007/s11160-022-09732-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 09/28/2022] [Indexed: 05/19/2023]
Abstract
Shark depredation is a complex social-ecological issue that affects a range of fisheries worldwide. Increasing concern about the impacts of shark depredation, and how it intersects with the broader context of fisheries management, has driven recent research in this area, especially in Australia and the United States. This review synthesises these recent advances and provides strategic guidance for researchers aiming to characterise the occurrence of depredation, identify the shark species responsible, and test deterrent and management approaches to reduce its impacts. Specifically, the review covers the application of social science approaches, as well as advances in video camera and genetic methods for identifying depredating species. The practicalities and considerations for testing magnetic, electrical, and acoustic deterrent devices are discussed in light of recent research. Key concepts for the management of shark depredation are reviewed, with recommendations made to guide future research and policy development. Specific management responses to address shark depredation are lacking, and this review emphasizes that a "silver bullet" approach for mitigating depredation does not yet exist. Rather, future efforts to manage shark depredation must rely on a diverse range of integrated approaches involving those in the fishery (fishers, scientists and fishery managers), social scientists, educators, and other stakeholders.
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Affiliation(s)
- J. D. Mitchell
- Queensland Government, Department of Agriculture and Fisheries, Ecosciences Precinct, 41 Boggo Road, Dutton Park, QLD 4102 Australia
| | - J. M. Drymon
- Mississippi State University, Coastal Research and Extension Center, 1815 Popps Ferry Road, Biloxi, MS 39532 USA
- Mississippi-Alabama Sea Grant Consortium, 703 East Beach Drive, Ocean Springs, MS 39564 USA
| | - J. Vardon
- Southern Cross University, Lismore, NSW Australia
| | - P. G. Coulson
- Department of Primary Industries and Regional Development, Western Australian Fisheries and Marine Research Laboratories, 39 Northside Drive, Hillarys, WA 6025 Australia
| | - C. A. Simpfendorfer
- Institute for Marine and Antarctic Studies, University of Tasmania, 20 Castray Esplanade, Battery Point, TAS 7004 Australia
| | - S. B. Scyphers
- Coastal Sustainability Institute, Department of Marine and Environmental Sciences, Northeastern University, Nahant, MA 01908 USA
- Social Science Environmental Health Research Institute, Northeastern University, Boston, MA 02115 USA
| | - S. M. Kajiura
- Department of Biological Sciences, Florida Atlantic University, 777 Glades Road, Boca Raton, FL 33431 USA
| | - K. Hoel
- Centre for Sustainable Tropical Fisheries and Aquaculture, James Cook University, Bldg 34 James Cook Drive, Douglas, QLD 4811 Australia
| | - S. Williams
- Queensland Government, Department of Agriculture and Fisheries, Ecosciences Precinct, 41 Boggo Road, Dutton Park, QLD 4102 Australia
- School of Biological Sciences, The University of Queensland, St Lucia, Qld 4072 Australia
| | - K. L. Ryan
- Department of Primary Industries and Regional Development, Western Australian Fisheries and Marine Research Laboratories, 39 Northside Drive, Hillarys, WA 6025 Australia
| | - A. Barnett
- Biopixel Oceans Foundation, Cairns, QLD Australia
- Marine Data Technology Hub, James Cook University, Townsville, QLD 4811 Australia
| | - M. R. Heupel
- Institute for Marine and Antarctic Studies, University of Tasmania, 20 Castray Esplanade, Battery Point, TAS 7004 Australia
| | - A. Chin
- Centre for Sustainable Tropical Fisheries and Aquaculture, James Cook University, Bldg 34 James Cook Drive, Douglas, QLD 4811 Australia
| | - M. Navarro
- School of Biological Sciences, The University of Western Australia, Crawley, WA Australia
- The Oceans Institute, University of Western Australia, Crawley, WA Australia
| | - T. Langlois
- School of Biological Sciences, The University of Western Australia, Crawley, WA Australia
- The Oceans Institute, University of Western Australia, Crawley, WA Australia
| | - M. J. Ajemian
- Harbor Branch Oceanographic Institute, Florida Atlantic University, 5600 US 1 North, Fort Pierce, FL 34946 USA
| | - E. Gilman
- Pelagic Ecosystems Research Group, Honolulu, HI USA
- Heriot-Watt University, Edinburgh, UK
| | - E. Prasky
- Coastal Sustainability Institute, Department of Marine and Environmental Sciences, Northeastern University, Nahant, MA 01908 USA
- Social Science Environmental Health Research Institute, Northeastern University, Boston, MA 02115 USA
| | - G. Jackson
- Department of Primary Industries and Regional Development, Western Australian Fisheries and Marine Research Laboratories, 39 Northside Drive, Hillarys, WA 6025 Australia
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McKellar RA, Kreplins TL, Fleming PA. Chicken's best friend? Livestock guardian dog bonding with free-ranging chickens. Transl Anim Sci 2023; 7:txad014. [PMID: 36873610 PMCID: PMC9977226 DOI: 10.1093/tas/txad014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 02/05/2023] [Indexed: 02/10/2023] Open
Abstract
Growth in the free-range and pastured egg industries has increased globally, necessitating improvements in predator control. Some egg producers are turning to the use of livestock guardian dogs (LGD; Canis familiaris) to protect hens from predation. We worked on a property where pastured layer hens were protected by two Maremma LGDs that were released from their chicken enclosure for 2-3 nights a week. GPS tracking showed that the dogs were more strongly bonded to people than the chickens, spending most of their time at night (96.1% of location data) close to the farmhouse and only 0.09% near their chicken paddock. Despite this lack of attendance, we found no change in the paddock space use by chickens with or without the dogs present (P = 0.999). Furthermore, camera trapping revealed 40 red fox (Vulpes vulpes) events over the 46-d monitoring period, with less fox activity on nights when the LGDs were allowed to roam the property and motion-activated spotlights were also deployed (P = 0.048). An online survey of 59 poultry producers found strong belief in the effectiveness of LGDs, although half the respondents (52%) indicated that they were still experiencing predation issues. There was no association with the reported degree of human bonding of their LGDs, but respondents were more likely to report current issues with predators if they owned 100 or more chickens (P = 0.031). The present case study as well as the farmer survey have identified that LGDs can be strongly bonded to people. Although there was no evidence of subsequently increased risk of predation, bonding with people could draw LGDs away from the animals they should be defending, with predation risk for poultry likely to depend on how far away LGDs move from their livestock.
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Affiliation(s)
- R A McKellar
- Terrestrial Ecosystem Science and Sustainability, Harry Butler Institute, Murdoch University, Murdoch, Western Australia, Australia
| | - T L Kreplins
- Terrestrial Ecosystem Science and Sustainability, Harry Butler Institute, Murdoch University, Murdoch, Western Australia, Australia.,Department of Primary Industries and Regional Development, Northam, Western Australia, Australia
| | - P A Fleming
- Terrestrial Ecosystem Science and Sustainability, Harry Butler Institute, Murdoch University, Murdoch, Western Australia, Australia
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Kiffner C, Uthes S, Ostermann-Miyashita EF, Harms V, König HJ. Patterns of livestock loss associated with a recolonizing wolf population in Germany. FRONTIERS IN CONSERVATION SCIENCE 2022. [DOI: 10.3389/fcosc.2022.989368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Predation on livestock presents a daunting challenge for human–carnivore coexistence in agricultural landscapes. In Germany, the recolonization of wolves is ongoing and its consequences are insufficiently understood. Knowledge about which livestock species are susceptible to wolf predation, which farm types are predisposed to attacks by wolves, and when predation on livestock occurs is valuable for mitigating stakeholder conflicts. To this end, we analyzed 14 years of monitoring data and assessed the livestock prey spectrum, identified correlates between predation on livestock, farm type and livestock category, and described temporal patterns of livestock loss caused by a recolonizing wolf population in the state of Brandenburg (Germany). Among a total of 1387 recorded cases, 42% were unequivocally attributed to wolves (SCALP criteria C1 and C2) and 12% of cases were not caused by wolves. The number of head of livestock killed during a single wolf attack was mediated by farm type and livestock species; losses per event were greater in full-time farms vs. other farm types and greater in sheep, farmed deer and other livestock species, compared to cattle. While sheep were the most commonly killed livestock species, the increase in wolf territories over the investigation period was associated with a widening of the domestic prey species spectrum. Count regression models provided evidence for the increasing frequency of predation events over the 14-year period, along with an exponential increase in wolf territories. Predation on livestock occurred throughout the year, yet seasonality of events was evident and differed across livestock categories. Predation on sheep peaked in the fall, coinciding with the post-weaning period of wolf offspring. Predation on cattle peaked in the spring, coinciding with the cattle calving period. These results call for renewed investment in the implementation of prevention methods for all susceptible domestic species, particularly during times of elevated predation risk.
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Daberger M, Kuemmerle T, Khaleghi Hamidi A, Khalatbari L, Abolghasemi H, Mirzadeh HR, Ghoddousi A. Prioritizing livestock grazing right buyouts to safeguard Asiatic cheetahs from extinction. CONSERVATION SCIENCE AND PRACTICE 2022. [DOI: 10.1111/csp2.12832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Affiliation(s)
| | - Tobias Kuemmerle
- Geography Department Humboldt‐University Berlin Berlin Germany
- Integrative Research Institute on Transformations of Human‐Environment Systems (IRI THESys) Humboldt‐University Berlin Berlin Germany
| | | | - Leili Khalatbari
- CIBIO/InBIO, Research Center in Biodiversity and Genetic Resources Vairão Portugal
- Mohitban Society Tehran Iran
| | | | | | - Arash Ghoddousi
- Geography Department Humboldt‐University Berlin Berlin Germany
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9
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Ali A, Uz Zaman I, Omer T, Ahmad S, López‐Bao JV. Negative interactions between humans and Asiatic black bears (
Ursus thibetanus
) in northern Pakistan. CONSERVATION SCIENCE AND PRACTICE 2022. [DOI: 10.1111/csp2.12816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Abid Ali
- Zoology Department Government Degree College, Akbarpura Nowshera Pakistan
- Peshawar Zoo, Wildlife Department Peshawar Pakistan
| | | | - Talha Omer
- Department of Statistics and Computer Science University of Veterinary and Animal Sciences Lahore Pakistan
| | - Shakeel Ahmad
- Carnivores Conservation Lab, Department of Zoology Quaid I Azam University Islamabad Pakistan
| | - José Vicente López‐Bao
- Biodiversity Research Institute (CSIC – Oviedo University – Principality of Asturias) Oviedo University Mieres Spain
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Lorand C, Robert A, Gastineau A, Mihoub JB, Bessa-Gomes C. Effectiveness of interventions for managing human-large carnivore conflicts worldwide: Scare them off, don't remove them. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 838:156195. [PMID: 35623521 DOI: 10.1016/j.scitotenv.2022.156195] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 05/04/2022] [Accepted: 05/20/2022] [Indexed: 06/15/2023]
Abstract
Human-wildlife conflicts are associated with a threat to large carnivores, as well as with economic and social costs, thus challenging conservation management around the world. In this study, we explored the effectiveness of common management interventions used worldwide for the purpose of conflict reduction using an evidence-based framework combining expert assessment of intervention effectiveness, impact and uncertainty of assessment. We first conducted a literature review of human-large carnivore conflicts across the world. Based on this review, we identified three main types of management interventions (non-lethal, translocations, and lethal management) and we assessed their effectiveness. Our review indicates that, although the characteristics of conflicts with large carnivores are heavily influenced by the local context and the species, the main issues are depredation on livestock, space-sharing, and attacks on humans. Non-lethal interventions are more likely to reduce conflict, whereas translocations and lethal interventions are mostly ineffective and/or harmful to carnivore populations, without fostering successful long-term coexistence. The literature on conflict management is often imprecise and lacks consistency between studies or situations, which generally makes comparisons difficult. Our protocol allows for the reliable comparison of experiments characterized by heterogeneous standards, response variables, protocols, and quality of evidence. Nevertheless, we encourage the use of systematic protocols with common good standards in order to provide more reliable empirical evidence. This would clarify the relative effectiveness of conflict management strategies and contribute to the global reduction in the occurrence of human-large carnivore conflicts across the world.
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Affiliation(s)
- Charlotte Lorand
- Centre d'Ecologie et des Sciences de la Conservation (CESCO), Muséum National d'Histoire Naturelle, Centre National de la Recherche Scientifique, Sorbonne Université, CP 135, 43 rue Buffon, 75005 Paris, France; Ecologie, Systématique et Evolution, UMR 8079 CNRS, Université Paris Saclay, Orsay, France.
| | - Alexandre Robert
- Centre d'Ecologie et des Sciences de la Conservation (CESCO), Muséum National d'Histoire Naturelle, Centre National de la Recherche Scientifique, Sorbonne Université, CP 135, 43 rue Buffon, 75005 Paris, France
| | - Adrienne Gastineau
- Centre d'Ecologie et des Sciences de la Conservation (CESCO), Muséum National d'Histoire Naturelle, Centre National de la Recherche Scientifique, Sorbonne Université, CP 135, 43 rue Buffon, 75005 Paris, France; Equipe Ours, Unité Prédateurs-Animaux Déprédateurs, Office National de la Chasse et de la Faune Sauvage, impasse de la Chapelle, 31800 Villeneuve-de-Rivière, France
| | - Jean-Baptiste Mihoub
- Centre d'Ecologie et des Sciences de la Conservation (CESCO), Muséum National d'Histoire Naturelle, Centre National de la Recherche Scientifique, Sorbonne Université, CP 135, 43 rue Buffon, 75005 Paris, France
| | - Carmen Bessa-Gomes
- Ecologie, Systématique et Evolution, UMR 8079 CNRS, Université Paris Saclay, Orsay, France
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Sargent R, Rakotonarivo OS, Rushton SP, Cascio B, Grau A, Bell AR, Bunnefeld N, Dickman A, Pfeifer M. An experimental game to examine pastoralists' preferences for human–lion coexistence strategies. PEOPLE AND NATURE 2022. [DOI: 10.1002/pan3.10393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Rebecca Sargent
- School of Natural and Environmental Sciences Newcastle University Newcastle upon Tyne UK
| | | | - Stephen P. Rushton
- School of Natural and Environmental Sciences Newcastle University Newcastle upon Tyne UK
| | | | | | - Andrew R. Bell
- Department of Earth and Environment Boston University Boston MA USA
| | - Nils Bunnefeld
- Biological and Environmental Sciences University of Stirling Stirling UK
| | - Amy Dickman
- Wildlife Conservation Research Unit University of Oxford, Recanti‐Kaplan Centre Oxford UK
| | - Marion Pfeifer
- School of Natural and Environmental Sciences Newcastle University Newcastle upon Tyne UK
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12
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Lucas C, Abell J, Bremner-Harrison S, Whitehouse-Tedd K. Stakeholder Perceptions of Success in Human-Carnivore Coexistence Interventions. FRONTIERS IN CONSERVATION SCIENCE 2022. [DOI: 10.3389/fcosc.2022.906405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Human-carnivore coexistence (HCC) on agricultural lands affects wildlife and human communities around the world, whereby a lack of HCC is a central concern for conservation and farmer livelihoods alike. For intervention strategies aimed at facilitating HCC to achieve their desired goals it is essential to understand how interventions and their success are perceived by different stakeholders. Using a grounded theory approach, interviews (n=31) were conducted with key stakeholders (commercial livestock farmers, conservationists and protected area managers) involved in HCC scenarios in Limpopo, South Africa. Interviews explored perceptions of successful intervention strategies (aimed at increasing HCC), factors that contribute to perceptions of strategy effectiveness and whether coexistence was a concept that stakeholders considered achievable. The use of grounded theory emphasised the individual nature and previously unexplored facets to HCC experiences. The majority of stakeholders based their measures of success on changes in livestock loss. Concern has been raised over the subjectivity and reliance on recall that this measure involves, potentially reducing its reliability as an indicator of functional effectiveness. However, it was relied on heavily by users of HCC interventions in our study and is therefore likely influential in subsequent behaviour and decision-making regarding the intervention. Nonetheless, perceptions of success were not just shaped by livestock loss but influenced by various social, cultural, economic and political factors emphasising the challenges of defining and achieving HCC goals. Perceptions of coexistence varied; some stakeholders considered farmer-carnivore coexistence to be impossible, but most indicated it was feasible with certain caveats. An important element of inter-stakeholder misunderstanding became apparent, especially regarding the respective perceptions of coexistence and responsibility for its achievement. Without fully understanding these perceptions and their underpinning factors, interventions may be restricted in their capacity to meet the expectations of all interested parties. The study highlights the need to understand and explore the perceptions of all stakeholders when implementing intervention strategies in order to properly define and evaluate the achievement of HCC goals.
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13
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Blossey B, Hare D. Myths, Wishful Thinking, and Accountability in Predator Conservation and Management in the United States. FRONTIERS IN CONSERVATION SCIENCE 2022. [DOI: 10.3389/fcosc.2022.881483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Large predators are thought of as ecological keystone species, posterchildren of conservation campaigns, and sought-after targets of tourists and photographers. At the same time, predators kill livestock and huntable animals, and occasionally people, triggering fears and antipathy among those living alongside them. Until the 1960’s government-sponsored eradication and persecution campaigns in the United States prioritized interests of livestock producers and recreational hunters, leading to eradication of wolves and bears over much of their range. Without large predators, subsidized by changes in agricultural practices and milder winters, ungulate populations erupted, triggering negative ecological impacts, economic damage, and human health crises (such as tick-borne diseases). Shifting societal preferences have ushered in more predator-friendly, but controversial wildlife policies, from passively allowing range expansion to purposeful reintroductions (such as release of wolves in Yellowstone National Park). Attempts to restore wolves or mountain lions in the U.S. and protecting coyotes appear to enjoy strong public support, but many state wildlife agencies charged with managing wildlife, and recreational hunters continue to oppose such efforts, because they perceive predators as competitors for huntable animals. There may be compelling reasons for restoring predators or allowing them to recolonize their former ranges. But if range expansion or intentional releases of large predators do not result in ecosystem recovery, reduced deer populations, or Lyme disease reductions, conservationists who have put their reputation on the line and assured decision makers and the public of the important functional role of large predators may lose public standing and trust. Exaggerated predictions by ranchers and recreational hunters of greatly reduced ungulate populations and rampant livestock killing by large carnivores may lead to poaching and illegal killing threatening recovery of predator populations. How the return of large carnivores may affect vegetation and successional change, ungulate population size, other biota, livestock and human attitudes in different landscapes has not been appropriately assessed. Societal support and acceptance of living alongside predators as they expand their range and increase in abundance requires development and monitoring of social, ecological and economic indicators to assess how return of large predators affects human and animal and plant livelihoods.
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14
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Slater K, Jager D, Wyk AM, Dalton DL, Kropff AS, Preez I. Population genetics of a lethally managed medium‐sized predator. J Zool (1987) 2022. [DOI: 10.1111/jzo.12995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- K. Slater
- Applied Behavioural Ecology and Ecosystem Research Unit (ABEERU), Department of Environmental Sciences, College of Agriculture and Environmental Sciences University of South Africa Florida Gauteng South Africa
| | - D. Jager
- Molecular Ecology and Evolution Programme, Department of Biochemistry, Genetics and Microbiology, Faculty of Natural and Agricultural Science University of Pretoria Pretoria Gauteng South Africa
| | - A. M. Wyk
- Molecular Ecology and Evolution Programme, Department of Biochemistry, Genetics and Microbiology, Faculty of Natural and Agricultural Science University of Pretoria Pretoria Gauteng South Africa
| | - D. L. Dalton
- South African National Biodiversity Institute Pretoria South Africa
- School of Health and Life Sciences Teesside University Middlesbrough UK
| | - A. S. Kropff
- South African National Biodiversity Institute Pretoria South Africa
| | - I. Preez
- Applied Behavioural Ecology and Ecosystem Research Unit (ABEERU), Department of Environmental Sciences, College of Agriculture and Environmental Sciences University of South Africa Florida Gauteng South Africa
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Mkonyi FJ. An integrated approach for the management of human-carnivore conflict: a review of conflict management interventions in Tanzania. Mamm Biol 2022. [DOI: 10.1007/s42991-022-00255-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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16
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Factors affecting livestock guarding dogs’ proximity to their herd and association with perceived effectiveness. J Vet Behav 2022. [DOI: 10.1016/j.jveb.2022.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Khorozyan I. Defining practical and robust study designs for interventions targeted at terrestrial mammalian predators. CONSERVATION BIOLOGY : THE JOURNAL OF THE SOCIETY FOR CONSERVATION BIOLOGY 2022; 36:e13805. [PMID: 34231934 DOI: 10.1111/cobi.13805] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 06/26/2021] [Accepted: 06/29/2021] [Indexed: 06/13/2023]
Abstract
Conflicts between humans and mammalian predators are globally widespread and increasing, creating a long-lasting challenge for conservation and local livelihoods. Protection interventions, which are essential to conflict mitigation, should be based on solid evidence of effectiveness produced by robust study designs. Yet, it is unclear what study designs have been used in predator-targeted interventions and how they can be improved to provide best practices for replications. I examined how applications of five study designs (before-after, before-after-control-impact, control-impact, crossover [i.e., the same randomly assigned study units acting as treatments and controls during alternating trials], and randomized controlled trial) have changed over time and how these changes are related to authors, predator species, countries, and intervention types (aversion, husbandry, mixed interventions, invasive management, lethal control, and noninvasive management). I applied multinomial regression modeling to 434 cases (28 predator species and 45 countries) from 244 studies published from 1955 to 2020. Study design was related only to intervention type. Less reliable before-after and control-impact studies were the most common (47.7% and 38.2% of cases, respectively), and their use increased over years as did all interventions. The contribution of the most robust before-after-control-impact (7.4%), randomized controlled trial (5.3%), and crossover designs (1.4%) remained minor over time. Crossover is suitable for aversion, most husbandry techniques, and a few other interventions, but crossover interventions also have the most limitations in terms of applicability. Randomized controlled trial is generally applicable, but impractical or inappropriate for some interventions, and before-after-control-impact appears to be the most widely applicable study design for predator-targeted interventions.
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Affiliation(s)
- Igor Khorozyan
- Department of Conservation Biology, Georg-August-Universität Göttingen, Göttingen, Germany
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Hoffmann CF, Pilfold NW, Ruppert KA, Letoluai A, Lenguya L, Limo I, Montgomery RA. The Integral Nature of Encounter Rate in Predicting Livestock Depredation Risk. FRONTIERS IN CONSERVATION SCIENCE 2022. [DOI: 10.3389/fcosc.2022.808043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Carnivore depredation of livestock is one of the primary drivers of human-carnivore conflict globally, threatening the well-being of livestock owners, and fueling large carnivore population declines. Interventions designed to reduce carnivore depredation typically center around predictions of depredation risk. However, these spatial risk models tend to be informed by data depicting the number of livestock attacked by carnivores. Importantly, such models omit key stages in the predation sequence which are required to predict predation risk, or in this case depredation risk. Applying the classic predation risk model defined by Lima and Dill demonstrates that depredation risk is dependent upon quantifying the rates at which carnivores encounter livestock before attacking. However, encounter rate is challenging to estimate, necessitating novel data collection systems. We developed and applied such a system to quantify carnivore-livestock encounters at livestock corrals (i.e., bomas) across a 9-month period in Central Kenya. Concurrently, we monitored the number of livestock attacked by carnivores at these bomas. We calculated carnivore-livestock encounter rates, attack rates, and depredation risk at the boma. We detected 1,383 instances in which carnivores encountered livestock at the bomas. However, we only recorded seven attacks. We found that the encounter rate and attack rate for spotted hyenas were almost six and three times higher than that for any other species, respectively. Consequently, spotted hyenas posed the greatest depredation risk for livestock at the boma. We argue that better understanding of carnivore-livestock encounter rates is necessary for effective prediction and mitigation of carnivore depredation of livestock.
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Mohammadi A, Alambeigi A, López‐Bao JV, Taghavi L, Kaboli M. Living with wolves: Lessons learned from Iran. CONSERVATION SCIENCE AND PRACTICE 2022. [DOI: 10.1111/csp2.12667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Affiliation(s)
- Alireza Mohammadi
- Department of Environmental Science and Engineering, Faculty of Natural Resources University of Jiroft Jiroft Iran
| | - Amir Alambeigi
- Department of Agricultural Extension and Education, College of Agricultural Economics and Development University of Tehran Karaj Iran
| | | | - Lobat Taghavi
- Department of Environmental Science, Faculty of Natural Resources and Environment, Science and Research Branch Islamic Azad University Tehran Iran
| | - Mohammad Kaboli
- Department of Environmental Science, Faculty of Natural Resources University of Tehran Karaj Iran
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Fedyń I, Bojarska K, Gerber N, Okarma H. Blood trail of expansion? Long‐term patterns of livestock depredation by wolves in Poland. Ecol Res 2022. [DOI: 10.1111/1440-1703.12301] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Izabela Fedyń
- Department of Forest Biodiversity, Faculty of Forestry University of Agriculture Kraków Poland
| | - Katarzyna Bojarska
- Institute of Nature Conservation Polish Academy of Sciences Kraków Poland
| | - Nina Gerber
- Wildlife Sciences, Faculty of Forest Sciences and Forest Ecology University of Goettingen Goettingen Germany
| | - Henryk Okarma
- Institute of Environmental Sciences Jagiellonian University Kraków Poland
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Mayer M, Olsen K, Schulz B, Matzen J, Nowak C, Thomsen PF, Hansen MM, Vedel-Smith C, Sunde P. Occurrence and Livestock Depredation Patterns by Wolves in Highly Cultivated Landscapes. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.783027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Attacks by large predators on livestock are an important driver of conflicts. Consequently, knowledge about where predators occur, where livestock depredation takes place and what factors influence it will aid the mitigation of stakeholder conflicts. Following legal protection, wolves (Canis lupus) in Central Europe are recently spreading to areas dominated by agriculture, bringing them in closer contact with livestock. Here, we analyzed habitat selection and livestock depredation rates of 43 wolves identified by genotyping on the Jutland peninsula, consisting of mainland Denmark and the northernmost German federal state Schleswig-Holstein. Occupancy by resident wolves correlated positively with forest and other non-forested semi-natural land cover (habitat for natural ungulate prey), whereas occupancy by non-resident wolves correlated with increasing forest cover and sheep density. The latter effect likely reflected increased sampling probability of highly mobile dispersers killing livestock. We recorded 565 livestock depredation events (85 in Denmark and 480 in Schleswig-Holstein), of which 42% (55 in DK and 185 in SH) could be assigned to 27 individual wolves based on DNA evidence. Livestock (mostly sheep) were killed by wolves in 16% of the study area. Our results indicate that wolves mostly killed livestock as a context-dependent response, i.e., being dispersers in agricultural areas with low availability of wild ungulate prey and high livestock densities, and not because of behavioral preferences for sheep. Moreover, the livestock depredation was lower in areas with livestock protection measures (implemented in areas with established pairs/packs). We conclude that while wolf attacks on livestock in established wolf territories generally can be reduced through improvement of fences, livestock depredation by non-resident wolves in agricultural areas constitutes a bigger challenge. Albeit technically possible, the economic costs of implementing predator-proof fences and other preventive measures in such pastoral areas infrequently visited by wolves will be considerable. Experiences so far further indicate that lethal removal of identified “problem wolves” may be inefficient in practice.
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Roddick S, Kreplins TL, Kobryn HT, Fleming PA. Livestock guardian dog protection of free-range poultry from the red fox. ANIMAL PRODUCTION SCIENCE 2022. [DOI: 10.1071/an21229] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Herrero J, García-Serrano A, Reiné R, Ferrer V, Azón R, López-Bao JV, Palomero G. Challenges for recovery of large carnivores in humanized countries: attitudes and knowledge of sheep farmers towards brown bear in Western Pyrenees, Spain. EUR J WILDLIFE RES 2021. [DOI: 10.1007/s10344-021-01545-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
AbstractDuring 2017, we studied knowledge, perceptions, and attitudes towards brown bears by extensive mountain sheep farmers in the Western Pyrenees, using a structured questionnaire, specifically, whether the scarce bear presence, or the administrative region, was influential. Livestock raising practices are mainly family properties and have suffered a strong decline in the last decades. Despite its low abundance (only 2 bear individuals during the study period in the area), there was a generalized negative attitude towards the presence of bears. Farmers considered bear presence as incompatible with sheep mountain herding. One third of them have experienced bear damages, although this was not the main difficulty for the viability of farming practices. They were able to change husbandry practices after wildlife and dog’s damages, increasing vigilance, hiring shepherds, and using livestock guarding dogs, whose work is perceived as satisfactory. Farmers considered that information available about bear and compensation systems for damages was insufficient, and should be improved.
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Viollaz JS, Thompson ST, Petrossian GA. When Human-Wildlife Conflict Turns Deadly: Comparing the Situational Factors That Drive Retaliatory Leopard Killings in South Africa. Animals (Basel) 2021; 11:ani11113281. [PMID: 34828012 PMCID: PMC8614444 DOI: 10.3390/ani11113281] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/30/2021] [Accepted: 11/05/2021] [Indexed: 11/21/2022] Open
Abstract
Simple Summary To better understand why retaliatory leopard killings caused by human-wildlife conflict happen in rural farming communities in South Africa and how to prevent them, this study interviewed conservationists, officials, and farmers living in a small village in the Western Cape Province. The respondents described four main problems that led to these killings: (1) the government’s response to the problem of human-leopard conflict is slow and unwilling; (2) this response was not effective; (3) there were inadequate resources to correctly respond to these killings; and (4) there was a lack of laws and their application as well as strong distrust between everyone involved, making it even harder to deal with the problem. Local community members had various innovative ideas that can be implemented to better handle the problem of human-leopard conflict in their region, which are highlighted in this article. Coupled with the criminological techniques proposed in this research, the problem of human-leopard conflict can be significantly reduced with local ideas and resources, in both the region and in other parts of the world that suffer from similar problems. Abstract Retaliatory killings caused by human-wildlife conflict have a significant impact on the survival of leopards. This study explores the reasons for retaliatory killings of leopards by interviewing community members in a small village in South Africa that experienced high incidences of human–leopard conflict. The semi-structured interviews focused on the reasons why retaliatory leopard killings occurred and how to best mitigate the situational factors that triggered these killings. Respondents cited four main problems that fueled these killings: the government’s response to human–leopard conflict was slow and unwilling; this response involved inefficient methods; there were inadequate resources to respond to these killings; and there was a clear lack of laws or their application. Local stakeholders provided a range of innovative strategies to reduce human-leopard conflict and retaliatory killings. While all parties expressed different reasons why these solutions were or were not effective, their conclusions were often similar. The distrust that existed between the parties prevented them from recognizing or accepting their common ground. Based on existing human–wildlife conflict mitigation techniques and solutions identified by local stakeholders, this article explores how criminological techniques, including situational crime prevention, can help identify and frame effective interventions to reduce the number of illegal leopard killings driven by human-wildlife conflict.
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Affiliation(s)
- Julie S. Viollaz
- Wildlife Crime Research Officer, United Nations Office on Drugs & Crime, P.O. Box 600, Wagramer Strasse 5, A-1400 Vienna, Austria
- Correspondence:
| | - Sara T. Thompson
- Doctoral Candidate, School of Criminal Justice, Rutgers-Newark University, 123 Washington Street, 5th, Floor Newark, NJ 07102-3026, USA;
| | - Gohar A. Petrossian
- Associate Professor, John Jay College of Criminal Justice, 524 West Street, 59th, New York, NY 10019, USA;
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Oliveira T, Treves A, López-Bao JV, Krofel M. The contribution of the LIFE program to mitigating damages caused by large carnivores in Europe. Glob Ecol Conserv 2021. [DOI: 10.1016/j.gecco.2021.e01815] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Gehlen H, Große V, Doherr M. [Options and limitations of protecting horse husbandries in times of growing wolf populations in Germany - Review of the literature and horse owner questionnaire on risk assessment]. Tierarztl Prax Ausg G Grosstiere Nutztiere 2021; 49:301-309. [PMID: 34666366 DOI: 10.1055/a-1580-8764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
OBJECTIVE Since 2000 the wolf population is reestablishing itself in Germany. In consequence to increasing numbers, livestock damage caused by wolves is on the rise, with horses likewise being affected. The aim of the study was to provide an overview of this challenge and its possible solutions. MATERIAL AND METHODS Based on a literature research, data on the wolf population in Germany, wolf-related damage as well as possibilities and limitations of herd protection for horses were evaluated. An online survey addressed to horse owners/keepers served to determine the actual and/or perceived threat posed by wolves and the resulting effects on horse husbandry. RESULTS The literature search showed a continuous increase of the wolf population in recent years as well as a significant increase of wolf-caused livestock damage in general especially since 2016; although horses were rarely affected. Half of the 574 evaluated questionnaires were from Brandenburg and Lower Saxony. The greatest influence on the individual risk assessment concerning their own horses by the growing wolf population was the horse owners' knowledge of wolf attacks in their own county. Especially the aspects of keeping young horses as well as pasture keeping played a significant role. 64 % of respondents indicated that they had not changed their horse management practices despite the increasing wolf population. Only 8 of 576 horse owners had reported officially confirmed wolf attacks and 30 respondents had not reported a suspected wolf damage to official agencies. More than half of the respondents who had contact with a wolf advisor described the cooperation as either not or only slightly purposeful. CONCLUSION AND CLINICAL RELEVANCE The number of officially confirmed wolf attacks on horses is low. These numbers could be objectified by a routinely performed genetic test in case of corresponding suspicion. Despite the awareness of an increasing danger of horses by wolves, horse owners mostly do not undertake prophylactic protection measures. The communication between responsible authorities for wolf monitoring and horse owners seems to be in need of improvement.
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Affiliation(s)
- Heidrun Gehlen
- Klinik für Pferde, Allgemeine Chirurgie und Radiologie, Freie Universität Berlin
| | - Viktoria Große
- Klinik für Pferde, Allgemeine Chirurgie und Radiologie, Freie Universität Berlin
| | - Marcus Doherr
- Institut für Veterinär-Epidemiologie und Biometrie, Freie Universität Berlin
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Snijders L, Thierij NM, Appleby R, St. Clair CC, Tobajas J. Conditioned Taste Aversion as a Tool for Mitigating Human-Wildlife Conflicts. FRONTIERS IN CONSERVATION SCIENCE 2021. [DOI: 10.3389/fcosc.2021.744704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Modern wildlife management has dual mandates to reduce human-wildlife conflict (HWC) for burgeoning populations of people while supporting conservation of biodiversity and the ecosystem functions it affords. These opposing goals can sometimes be achieved with non-lethal intervention tools that promote coexistence between people and wildlife. One such tool is conditioned taste aversion (CTA), the application of an evolutionary relevant learning paradigm in which an animal associates a transitory illness to the taste, odor or other characteristic of a particular food item, resulting in a long-term change in its perception of palatability. Despite extensive support for the power of CTA in laboratory studies, field studies have exhibited mixed results, which erodes manager confidence in using this tool. Here we review the literature on CTA in the context of wildlife conservation and management and discuss how success could be increased with more use of learning theory related to CTA, particularly selective association, stimulus salience, stimulus generalization, and extinction of behavior. We apply learning theory to the chronological stages of CTA application in the field and illustrate them by synthesizing and reviewing past applications of CTA in HWC situations. Specifically, we discuss (1) when CTA is suitable, (2) how aversion can be most effectively (and safely) established, (3) how generalization of aversion from treated to untreated food can be stimulated and (4) how extinction of aversion can be avoided. For each question, we offer specific implementation suggestions and methods for achieving them, which we summarize in a decision-support table that might be used by managers to guide their use of CTA across a range of contexts. Additionally, we highlight promising ideas that may further improve the effectiveness of CTA field applications in the future. With this review, we aspire to demonstrate the diverse past applications of CTA as a non-lethal tool in wildlife management and conservation and facilitate greater application and efficacy in the future.
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Gervasi V, Linnell JD, Berce T, Boitani L, Cerne R, Ciucci P, Cretois B, Derron-Hilfiker D, Duchamp C, Gastineau A, Grente O, Huber D, Iliopoulos Y, Karamanlidis AA, Kojola I, Marucco F, Mertzanis Y, Männil P, Norberg H, Pagon N, Pedrotti L, Quenette PY, Reljic S, Salvatori V, Talvi T, von Arx M, Gimenez O. Ecological correlates of large carnivore depredation on sheep in Europe. Glob Ecol Conserv 2021. [DOI: 10.1016/j.gecco.2021.e01798] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Martin JV, Epstein K, Anderson RM, Charnley S. Coexistence Praxis: The Role of Resource Managers in Wolf-Livestock Interactions on Federal Lands. FRONTIERS IN CONSERVATION SCIENCE 2021. [DOI: 10.3389/fcosc.2021.707068] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
In resource management, new terms are frequently introduced, reflecting ongoing evolution in the theory and practice of ecology and governance. Yet understandings of what new concepts mean, for whom, and what they imply for management on the ground can vary widely. Coexistence—a prominent concept within the literature and practices around human-wildlife conflict and predator management—is one such term: widely invoked and yet poorly defined. While for some coexistence is the latest paradigm in improving human-wildlife relations, the concept remains debated and indeed even hotly contested by others—particularly on the multiple-use public lands of the American West, where gray wolf conservation, livestock production, and the claims of diverse stakeholders share space.The multiple meanings of coexistence present serious challenges for conservation practice, as what the concept implies or requires can be contested by those most central to its implementation. In this study we examine wolf-livestock management—a classic case of human-wildlife conflict—by focusing on the experiences and perspectives of U.S. Forest Service (USFS) managers. We reviewed coexistence's multivalence in the literature, complementing semi-structured interviews conducted with USFS employees on case study forests from across the western states. Through this, we highlight the complexity and multi-dimensionality of the concept, and the unique yet under-explored perspective that resource managers bring to these debates.This work draws on insights from political ecology to emphasize the situatedness of manager practice—taking place within a broader set of relations and contextual pressures—while extending political ecologists' traditional focus on the resource user to a concern with the resource manager as a key actor in environmental conflicts. Through our engagement with the experiences and perceptions of USFS managers, who must balance conservation aims with long-established land uses like livestock grazing, we hope to clarify the various dimensions of coexistence. Our hope is that this work thus increases the possibility for empathy and collaboration among managers and stakeholders engaged in this complex socio-ecological challenge.
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Pettersson HL, Quinn CH, Holmes G, Sait SM, López-Bao JV. Welcoming Wolves? Governing the Return of Large Carnivores in Traditional Pastoral Landscapes. FRONTIERS IN CONSERVATION SCIENCE 2021. [DOI: 10.3389/fcosc.2021.710218] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Wolf populations are recovering across Europe and readily recolonize most areas where humans allow their presence. Reintegrating wolves in human-dominated landscapes is a major challenge, particularly in places where memories and experience of coexistence have been lost. Despite the observed expansion trends, little has been done to prepare communities for the return of these apex predators, or to understand what fosters and perpetuates coexistence. In this study, we present a theoretical framework for resilient coexistence based on four conditions: Effective institutions, large carnivore persistence, social legitimacy, and low levels of risk and vulnerability, nested within the social-ecological systems (SES) concept. To empirically show how the conditions can be manifested and interconnected, and how this knowledge could be used to improve local coexistence capacities, the framework is applied in a case study of human–wolf relations in Spain. We examined three traditionally pastoral landscapes at different states of cohabitation with wolves: uninterrupted presence, recent recolonization, and imminent return. We found that both the perceptions of wolves and the capacity to coexist with them diverged across these states, and that this was largely determined by a diversity of vulnerabilities that have not been recognized or addressed within current management regimes, such as economic precarity and weak legitimacy for governing institutions. Our results illustrate the importance of working in close contact with communities to understand local needs and enhance adaptive capacities in the face of rural transitions, beyond those directly related to wolves. The framework complements emerging tools for coexistence developed by researchers and practitioners, which offer guidance on the process of situational analysis, planning, and resource allocation needed to balance large carnivore conservation with local livelihoods.
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Hall KJ, Fleming PA. In the spotlight: Can lights be used to mitigate fox predation on a free-range piggery? Appl Anim Behav Sci 2021. [DOI: 10.1016/j.applanim.2021.105420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Volski L, McInturff A, Gaynor KM, Yovovich V, Brashares JS. Social Effectiveness and Human-Wildlife Conflict: Linking the Ecological Effectiveness and Social Acceptability of Livestock Protection Tools. FRONTIERS IN CONSERVATION SCIENCE 2021. [DOI: 10.3389/fcosc.2021.682210] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Human-wildlife interactions are embedded within socio-ecological systems (SES), in which animal behavior and human decision-making reciprocally interact. While a growing body of research addresses specific social and ecological elements of human-wildlife interactions, including conflicts, integrating these approaches is essential for identifying practical and effective solutions. Carnivore predation on livestock can threaten human livelihoods, weaken relationships among stakeholders, and precipitate carnivore declines. As carnivores have received greater protection in recent decades, researchers and managers have sought non-lethal tools to reduce predation and promote coexistence between livestock producers and carnivores. For these tools to be successful, they must effectively deter carnivores, and they must also be adopted by producers. Relatively few studies examine the practical and context-specific effectiveness of non-lethal tools, and even fewer simultaneously consider their social acceptability among producers. To address this gap, we suggest that a tool's ecological effectiveness and social acceptability be analyzed concurrently to determine its social effectiveness. We thus paired an experimental study of a carnivore predation deterrent called Foxlights® with qualitative interviews of livestock producers in Northern California. We placed camera traps in sheep pastures to measure the response of coyotes (Canis latrans) to experimentally deployed Foxlights and interviewed livestock producers before and after the experiment. Our experiment revealed weak evidence for reducing coyote activity with Foxlights, but interviews revealed that the potential adoption of tools had as much to do with their social acceptability and implementation feasibility as with evidence-based measurements of tool effectiveness. Interviewees viewed Foxlights as potentially effective components of husbandry systems, despite the data suggesting otherwise, demonstrating that scientific reductionism may lag behind producer practices of systems-thinking and that isolated demonstrations of a tool's ecological effectiveness do not drive tool adoption. Future empirical tests of non-lethal tools should better consider producers' perspectives and acknowledge that data-based tests of ecological effectiveness alone have a limited place in producer decision-making. Iteratively working with producers can build trust in scientific outputs through the research process itself.
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Khorozyan I. Setting Statistical Thresholds Is Useful to Define Truly Effective Conservation Interventions. Front Ecol Evol 2021. [DOI: 10.3389/fevo.2021.657423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Effective interventions are needed to solve conflicts between humans and predators over livestock killing, nuisance behavior, and attacks on pets and humans. Progress in quantification of evidence-based effectiveness and selection of the best interventions raises new questions, such as the existence of thresholds to identify truly effective interventions. Current classification of more and less effective interventions is subjective and statistically unjustified. This study describes a novel method to differentiate true and untrue effectiveness on a basis of false positive risk (FPR). I have collected 152 cases of applications of damage-reducing interventions from 102 scientific publications, 26 countries, 22 predator species, and 6 categories of interventions. The analysis has shown that the 95% confidence interval of the relative risk of predator-caused damage was 0.10–0.25 for true effectiveness (FPR < 0.05) and 0.35–0.56 for untrue effectiveness (FPR ≥ 0.05). This means that damage was reduced by 75–90% for truly effective interventions and by 44–65% for interventions of untrue effectiveness. Based on this, it was specified that truly effective interventions have the relative risk ≤ 0.25 (damage reduction ≥ 75%) and the effectiveness of interventions with the relative risk > 0.25 (damage reduction < 75%) is untrue. This threshold is statistically well-justified, stable, easy to remember, and practical to use in anti-predator interventions. More research is essential to know how this threshold holds true for other conservation interventions aiming to reduce negative outcomes (e.g., poaching rates) or increase positive outcomes (e.g., species richness).
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Khorozyan I. Dealing with false positive risk as an indicator of misperceived effectiveness of conservation interventions. PLoS One 2021; 16:e0255784. [PMID: 34352882 PMCID: PMC8342041 DOI: 10.1371/journal.pone.0255784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 07/23/2021] [Indexed: 11/18/2022] Open
Abstract
As human pressures on the environment continue to spread and intensify, effective conservation interventions are direly needed to prevent threats, reduce conflicts, and recover populations and landscapes in a liaison between science and conservation. It is practically important to discriminate between true and false (or misperceived) effectiveness of interventions as false perceptions may shape a wrong conservation agenda and lead to inappropriate decisions and management actions. This study used the false positive risk (FPR) to estimate the rates of misperceived effectiveness of electric fences (overstated if reported as effective but actually ineffective based on FPR; understated otherwise), explain their causes and propose recommendations on how to improve the representation of true effectiveness. Electric fences are widely applied to reduce damage to fenced assets, such as livestock and beehives, or increase survival of fenced populations. The analysis of 109 cases from 50 publications has shown that the effectiveness of electric fences was overstated in at least one-third of cases, from 31.8% at FPR = 0.2 (20% risk) to 51.1% at FPR = 0.05 (5% risk, true effectiveness). In contrast, understatement reduced from 23.8% to 9.5% at these thresholds of FPR. This means that truly effective applications of electric fences were only 48.9% of all cases reported as effective, but truly ineffective cases were 90.5%, implying that the effectiveness of electric fences was heavily overstated. The main reasons of this bias were the lack of statistical testing or improper reporting of test results (63.3% of cases) and interpretation of marginally significant results (p < 0.05, p < 0.1 and p around 0.05) as indicators of effectiveness (10.1%). In conclusion, FPR is an important tool for estimating true effectiveness of conservation interventions and its application is highly recommended to disentangle true and false effectiveness for planning appropriate conservation actions. Researchers are encouraged to calculate FPR, publish its constituent statistics (especially treatment and control sample sizes) and explicitly provide test results with p values. It is suggested to call the effectiveness “true” if FPR < 0.05, “suggestive” if 0.05 ≤ FPR < 0.2 and “false” if FPR ≥ 0.2.
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Affiliation(s)
- Igor Khorozyan
- Department of Conservation Biology, Georg-August-Universität, Göttingen, Germany
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Miranda EBP, Peres CA, Downs CT. Landowner perceptions of livestock predation: implications for persecution of an Amazonian apex predator. Anim Conserv 2021. [DOI: 10.1111/acv.12727] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- E. B. P. Miranda
- Centre for Functional Biodiversity School of Life Sciences University of KwaZulu‐Natal Pietermaritzburg South Africa
| | - C. A. Peres
- School of Environmental Sciences University of East Anglia Norwich UK
- Instituto Juruá Manaus Brazil
| | - C. T. Downs
- Centre for Functional Biodiversity School of Life Sciences University of KwaZulu‐Natal Pietermaritzburg South Africa
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Lieb Z, Tumurbaatar B, Elfström B, Bull J. Impact of livestock guardian dogs on livestock predation in rural Mongolia. CONSERVATION SCIENCE AND PRACTICE 2021. [DOI: 10.1111/csp2.509] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Affiliation(s)
- Zoë Lieb
- Durrell Institute of Conservation and Ecology, School of Anthropology and Conservation University of Kent Washington District of Columbia USA
| | | | - Bruce Elfström
- Nomadic Guardians Foundation East Haddam Connecticut USA
| | - Joe Bull
- Durrell Institute of Conservation and Ecology, School of Anthropology and Conservation University of Kent Washington District of Columbia USA
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Animal Harms and Food Production: Informing Ethical Choices. Animals (Basel) 2021; 11:ani11051225. [PMID: 33922738 PMCID: PMC8146968 DOI: 10.3390/ani11051225] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 04/17/2021] [Accepted: 04/20/2021] [Indexed: 12/14/2022] Open
Abstract
Simple Summary Consideration of animal welfare in food choices has become an influential contemporary theme. Traditional animal welfare views about food have been largely restricted to direct and intentional harms to livestock in intensive animal agriculture settings. However, many harms to animals arising from diverse food production practices in the world are exerted indirectly and unintentionally and often affect wildlife. Here we apply a qualitative analysis of food production by considering the breadth of harms caused by different food production systems to wild as well as domestic animals. Production systems are identified that produce relatively few and relatively many harms. The ethical implications of these findings are discussed for consumers concerned with the broad animal welfare impacts of their food choices. Abstract Ethical food choices have become an important societal theme in post-industrial countries. Many consumers are particularly interested in the animal welfare implications of the various foods they may choose to consume. However, concepts in animal welfare are rapidly evolving towards consideration of all animals (including wildlife) in contemporary approaches such as “One Welfare”. This approach requires recognition that negative impacts (harms) may be intentional and obvious (e.g., slaughter of livestock) but also include the under-appreciated indirect or unintentional harms that often impact wildlife (e.g., land clearing). This is especially true in the Anthropocene, where impacts on non-human life are almost ubiquitous across all human activities. We applied the “harms” model of animal welfare assessment to several common food production systems and provide a framework for assessing the breadth (not intensity) of harms imposed. We considered all harms caused to wild as well as domestic animals, both direct effects and indirect effects. We described 21 forms of harm and considered how they applied to 16 forms of food production. Our analysis suggests that all food production systems harm animals to some degree and that the majority of these harms affect wildlife, not livestock. We conclude that the food production systems likely to impose the greatest overall breadth of harms to animals are intensive animal agriculture industries (e.g., dairy) that rely on a secondary food production system (e.g., cropping), while harvesting of locally available wild plants, mushrooms or seaweed is likely to impose the least harms. We present this conceptual analysis as a resource for those who want to begin considering the complex animal welfare trade-offs involved in their food choices.
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König HJ, Carter N, Ceaușu S, Lamb C, Ford AT, Kiffner C. Human–wildlife coexistence in science and practice. CONSERVATION SCIENCE AND PRACTICE 2021. [DOI: 10.1111/csp2.401] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Affiliation(s)
- Hannes J. König
- Junior Research Group Human‐Wildlife Conflict and Coexistence Leibniz Centre for Agricultural Landscape Research (ZALF) Müncheberg Germany
| | - Neil Carter
- School for Environment and Sustainability University of Michigan 440 Church Street Ann Arbor Michigan MI 48109 USA
| | - Silvia Ceaușu
- Centre for Biodiversity and Environment Research University College London Gower Street London WC1E 6BT UK
| | - Clayton Lamb
- Department of Biological Sciences University of Alberta Edmonton Canada
- Department of Biology The University of British Columbia (UBC) Kelowna Canada
| | - Adam T. Ford
- Department of Biology The University of British Columbia (UBC) Kelowna Canada
| | - Christian Kiffner
- Junior Research Group Human‐Wildlife Conflict and Coexistence Leibniz Centre for Agricultural Landscape Research (ZALF) Müncheberg Germany
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41
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Clark TJ, Hebblewhite M. Predator control may not increase ungulate populations in the future: A formal meta‐analysis. J Appl Ecol 2020. [DOI: 10.1111/1365-2664.13810] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- T. J. Clark
- Wildlife Biology Program Department of Ecosystem and Conservation Sciences W. A. Franke College of Forestry and Conservation University of Montana Missoula MT USA
| | - Mark Hebblewhite
- Wildlife Biology Program Department of Ecosystem and Conservation Sciences W. A. Franke College of Forestry and Conservation University of Montana Missoula MT USA
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Ivaşcu CM, Biro A. Coexistence through the Ages: the Role of Native Livestock Guardian Dogs and Traditional Ecological Knowledge as Key Resources in Conflict Mitigation between Pastoralists and Large Carnivores in the Romanian Carpathians. J ETHNOBIOL 2020. [DOI: 10.2993/0278-0771-40.4.465] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
| | - Alina Biro
- Institute of Botany, Slovak Academy of Sciences, Bratislava, Slovakia
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Abstract
Abstract
Negative interactions with humans resulting from livestock predation is a major factor influencing the decline of African lion Panthera leo populations across Africa. Here we investigate lion depredation within two Maasai communities in southern Kenya where people and lions coexist in the absence of any formal protected areas. We explore the factors that increase the frequency and severity of lion attacks on pastoralists and their livestock and assess the effectiveness of livestock guarding to reduce damage. Finally, we examine in which circumstances lion depredation triggers retaliation by people. Over a period of 26 months, lions attacked livestock 29 times, resulting in 41 livestock deaths and 19 injuries. There were also two attacks on people. Lions preferred cattle over the more numerous sheep and goats. Attacks on livestock occurred mostly during the dry season and were not affected by changes in prey density or variation in pastoral settlement that brought livestock into closer proximity with lions. Livestock were guarded during 48.2% of lion attacks. Active guarding at pasture disrupted the majority of lion attacks, resulting in lower mortality rates. Passive guarding in corrals at night also disrupted attacks but did not lead to lower livestock mortality.
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Smith BR, Yarnell RW, Uzal A, Whitehouse-Tedd K. The ecological effects of livestock guarding dogs (LGDs) on target and non-target wildlife. JOURNAL OF VERTEBRATE BIOLOGY 2020. [DOI: 10.25225/jvb.20103] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Bethany R. Smith
- School of Animal, Rural and Environmental Sciences, Nottingham Trent University, United Kingdom; e-mail: , , ,
| | - Richard W. Yarnell
- School of Animal, Rural and Environmental Sciences, Nottingham Trent University, United Kingdom; e-mail: , , ,
| | - Antonio Uzal
- School of Animal, Rural and Environmental Sciences, Nottingham Trent University, United Kingdom; e-mail: , , ,
| | - Katherine Whitehouse-Tedd
- School of Animal, Rural and Environmental Sciences, Nottingham Trent University, United Kingdom; e-mail: , , ,
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Van Der Weyde LK, Kokole M, Modise C, Mbinda B, Seele P, Klein R. Reducing livestock-carnivore conflict on rural farms using local livestock guarding dogs. JOURNAL OF VERTEBRATE BIOLOGY 2020. [DOI: 10.25225/jvb.20090] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
| | - Morulaganyi Kokole
- Cheetah Conservation Botswana, Gaborone, Botswana; e-mail: , , , , , rklein@cheetahconserva
| | - Connie Modise
- Cheetah Conservation Botswana, Gaborone, Botswana; e-mail: , , , , , rklein@cheetahconserva
| | - Balekanye Mbinda
- Cheetah Conservation Botswana, Gaborone, Botswana; e-mail: , , , , , rklein@cheetahconserva
| | - Phale Seele
- Cheetah Conservation Botswana, Gaborone, Botswana; e-mail: , , , , , rklein@cheetahconserva
| | - Rebecca Klein
- Cheetah Conservation Botswana, Gaborone, Botswana; e-mail: , , , , , rklein@cheetahconserva
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Khorozyan I, Waltert M. A global view on evidence‐based effectiveness of interventions used to protect livestock from wild cats. CONSERVATION SCIENCE AND PRACTICE 2020. [DOI: 10.1111/csp2.317] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Affiliation(s)
- Igor Khorozyan
- Department of Conservation Biology Georg‐August‐Universität Göttingen Göttingen Germany
| | - Matthias Waltert
- Department of Conservation Biology Georg‐August‐Universität Göttingen Göttingen Germany
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Guerisoli MDLM, Luengos Vidal E, Caruso N, Giordano AJ, Lucherini M. Puma–livestock conflicts in the Americas: a review of the evidence. Mamm Rev 2020. [DOI: 10.1111/mam.12224] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Maria de las Mercedes Guerisoli
- GECOBI (Grupo de Genética y Ecología en Conservación y Biodiversidad) División Mastozoología Museo Argentino de Ciencias Naturales “Bernardino Rivadavia” Angel Gallardo 490 Buenos Aires1405Argentina
- Departamento de Biología, Bioquímica y Farmacia e Instituto de Ciencias Biológicas y Biomédicas del Sur Universidad Nacional del Sur ‐ CONICET San Juan 670 Bahía Blanca8000Argentina
- S.P.E.C.I.E.S P.O. Box 7403 Ventura California USA
| | - Estela Luengos Vidal
- Departamento de Biología, Bioquímica y Farmacia e Instituto de Ciencias Biológicas y Biomédicas del Sur Universidad Nacional del Sur ‐ CONICET San Juan 670 Bahía Blanca8000Argentina
| | - Nicolás Caruso
- Departamento de Biología, Bioquímica y Farmacia e Instituto de Ciencias Biológicas y Biomédicas del Sur Universidad Nacional del Sur ‐ CONICET San Juan 670 Bahía Blanca8000Argentina
| | | | - Mauro Lucherini
- Departamento de Biología, Bioquímica y Farmacia e Instituto de Ciencias Biológicas y Biomédicas del Sur Universidad Nacional del Sur ‐ CONICET San Juan 670 Bahía Blanca8000Argentina
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Chaka SNM, Kissui BM, Gray S, Montgomery RA. Predicting the fine‐scale factors that correlate with multiple carnivore depredation of livestock in their enclosures. Afr J Ecol 2020. [DOI: 10.1111/aje.12789] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Susan N. M. Chaka
- Department of Fisheries and Wildlife Michigan State University East Lansing MI USA
| | | | - Steven Gray
- Department of Fisheries and Wildlife Michigan State University East Lansing MI USA
| | - Robert A. Montgomery
- Department of Fisheries and Wildlife Michigan State University East Lansing MI USA
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Killion AK, Ramirez JM, Carter NH. Human adaptation strategies are key to cobenefits in human–wildlife systems. Conserv Lett 2020. [DOI: 10.1111/conl.12769] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Affiliation(s)
- Alexander K. Killion
- School for Environment & Sustainability University of Michigan Ann Arbor Michigan
| | | | - Neil H. Carter
- School for Environment & Sustainability University of Michigan Ann Arbor Michigan
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Tobajas J, Ruiz-Aguilera MJ, López-Bao JV, Ferreras P, Mateo R. The effectiveness of conditioned aversion in wolves: Insights from experimental tests. Behav Processes 2020; 181:104259. [PMID: 33011270 DOI: 10.1016/j.beproc.2020.104259] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 09/25/2020] [Accepted: 09/25/2020] [Indexed: 11/24/2022]
Abstract
It has been suggested that conditioned food aversion (CFA) could be a potential non-lethal intervention by which to deter attacks on livestock by large carnivores. CFA occurs when an animal associates the characteristics of a food with an illness, thus rejecting that food in subsequent encounters. CFA can be associated with an artificial odour during conditioning. Despite the debate surrounding the use of this intervention, more studies evaluating the effectiveness of CFA are necessary. We experimentally evaluated the potential of microgranulated levamisole + a vanilla odour cue to induce CFA in captive Iberian wolves (Canis lupus signatus). Four out of the five wolves treated showed an aversion to the meat for a minimum of one month after conditioning. The microgranulated presentation masked the flavour and smell of the levamisole but increased its volume, which may have facilitated its detection by the wolves. We also observed that the strength of the odour played an important role in the aversion extinction. The use of microgranulated levamisole + an odour cue has the potential to be used as an intervention by which to induce aversive conditioning in wolves in the wild, although rigorous field tests are required. We discuss the potential of CFA to deter attacks on livestock by large carnivores.
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Affiliation(s)
- Jorge Tobajas
- Instituto de Investigación en Recursos Cinegéticos (IREC), CSIC-UCLM-JCCM, 13071, Ciudad Real, Spain.
| | | | | | - Pablo Ferreras
- Instituto de Investigación en Recursos Cinegéticos (IREC), CSIC-UCLM-JCCM, 13071, Ciudad Real, Spain
| | - Rafael Mateo
- Instituto de Investigación en Recursos Cinegéticos (IREC), CSIC-UCLM-JCCM, 13071, Ciudad Real, Spain
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