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Hayward MW, Mitchell CD, Kamler JF, Rippon P, Heit DR, Nams V, Montgomery RA. Diet selection in the Coyote Canis latrans. J Mammal 2023; 104:1338-1352. [PMID: 38059008 PMCID: PMC10697429 DOI: 10.1093/jmammal/gyad094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 09/06/2023] [Indexed: 12/08/2023] Open
Abstract
The Coyote (Canis latrans) is one of the most studied species in North America with at least 445 papers on its diet alone. While this research has yielded excellent reviews of what coyotes eat, it has been inadequate to draw deeper conclusions because no synthesis to date has considered prey availability. We accounted for prey availability by investigating the prey selection of coyotes across its distribution using the traditional Jacobs' index method, as well as the new iterative preference averaging (IPA) method on scats and biomass. We found that coyotes selected for Dall's Sheep (Ovis dalli), White-tailed Deer (Odocoileus virginianus), Eastern Cottontail Rabbit (Sylvilagus floridanus), and California Vole (Microtus californicus), which yielded a predator-to-preferred prey mass ratio of 1:2. We also found that coyotes avoided preying on other small mammals, including carnivorans and arboreal species. There was strong concordance between the traditional and IPA method on scats, but this pattern was weakened when biomass was considered. General linear models revealed that coyotes preferred to prey upon larger species that were riskier to hunt, reflecting their ability to hunt in groups, and were least likely to hunt solitary species. Coyotes increasingly selected Mule Deer (O. hemionus) and Snowshoe Hare (Lepus americanus) at higher latitudes, whereas Black-tailed Jackrabbit (L. californicus) were increasingly selected toward the tropics. Mule Deer were increasingly selected at higher coyote densities, while Black-tailed Jackrabbit were increasingly avoided at higher coyote densities. Coyote predation could constrain the realized niche of prey species at the distributional limits of the predator through their increased efficiency of predation reflected in increased prey selection values. These results are integral to improved understandings of Coyote ecology and can inform predictive analyses allowing for spatial variation, which ultimately will lead to better understandings about the ecological role of the coyote across different ecosystems.
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Affiliation(s)
- Matt W Hayward
- Conservation Science Research Group, College of Engineering, Science and the Environment, University of Newcastle, Callaghan, New South Wales 2207, Australia
- Mammal Research Institute, University of Pretoria, Tshwane X001, South Africa
- Centre for African Conservation Ecology, Nelson Mandela University, Port Elizabeth 6213, South Africa
| | | | - Jan F Kamler
- Wildlife Conservation Research Unit, The Recanati-Kaplan Centre, Department of Biology, University of Oxford, Oxford OX13 5QL, United Kingdom
| | - Paul Rippon
- School of Information and Physical Sciences, University of Newcastle, Callaghan, New South Wales 2207, Australia
| | - David R Heit
- University of New Hampshire, Department of Natural Resources and the Environment, Durham, New Hampshire 03824, USA
| | - Vilis Nams
- Department of Plant, Food and Environmental Sciences, Agricultural Campus, Dalhousie University, Truro, Nova Scotia B2N 5E3, Canada
| | - Robert A Montgomery
- Wildlife Conservation Research Unit, The Recanati-Kaplan Centre, Department of Biology, University of Oxford, Oxford OX13 5QL, United Kingdom
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2
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Jaguar’s Predation and Human Shield, a Tapir Story. DIVERSITY 2022. [DOI: 10.3390/d14121103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Despite the risks associated, some species choose to shield behind a predator to decrease predation risk by another predator. In this study, we demonstrate how Baird’s tapirs (Tapirus bairdii) use humans as a “shield” to reduce the risk of being preyed upon by jaguars (Panthera onca). We collected georeferenced photographic records of 23 tapirs (seven of them injured) sighted near human settlements (0 to 5 km) in the Calakmul region of Mexico from 2008 to 2019. Using multidimensional scale analysis, we determined which possible factors (tapir health status, injuries, distance to the settlement, as well as seasonality) are related to the decision of tapirs to approach human settlements. To support our claims of jaguars’ attacks, we described the pattern of injuries believed to have been inflicted by jaguars on tapirs, and we analysed photographs and videos of species of the genus Panthera attacking larger prey than themselves to establish a pattern of injuries and compare it to the injuries observed on tapirs. Our study shows that tapir sightings near human settlements are related to health deterioration, injuries by jaguars and seasonality. The injuries found on tapirs are similar to those caused by other big cats on large prey, providing strong support for jaguar-inflicted wounds. Further studies should investigate whether the increasing human presence in different habitats in the Neotropical region could be influencing the behaviour and distribution of prey and predators.
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3
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Foster RJ, Harmsen BJ. Dietary similarity among jaguars (Panthera onca) in a high-density population. PLoS One 2022; 17:e0274891. [PMID: 36215244 PMCID: PMC9550027 DOI: 10.1371/journal.pone.0274891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 09/06/2022] [Indexed: 11/06/2022] Open
Abstract
Prey remains found in carnivore scats provide generalised dietary profiles of sampled populations. The profile may be biased if individual diets differ and some individuals are over- or under-represented in the sample. Quantifying individual contributions allows us to recognise these potential biases and better interpret generalised profiles. Knowing the dietary differences or similarity between individuals can help us to understand selection pressures and identify drivers of distribution and abundance. Using the results of individual faecal genotyping, we re-interpreted our previously-published generalised dietary profile of an elusive, neotropical felid, the jaguar (Panthera onca; Foster et al. (2010)). We quantified individual sample sizes, assessed whether the generalised profile was influenced by the inclusion of scats originating from the same individual and prey carcass (pseudo-replication), and quantified the distribution of prey species among individuals. From an original sample of 322 jaguar scats from a high-density jaguar population in Belize, we identified 206 prey items (individual prey animals) in 176 independent scats representing 32 jaguars (26 males, 3 females, 3 unknown sex). The influence of pseudo-replication in the original dietary profile was minimal. The majority of scats (94%) came from male jaguars. Eight males accounted for two-thirds of the prey items, while 24 jaguars each contributed <5% of the prey items. With few exceptions, the jaguars followed the same broad diet, a 2:1:1 ratio of nine-banded armadillos (Dasypus noveminctus), other vertebrates ≤10kg, and ungulates, primarily peccaries (Tayassu pecari and Pecari tajacu). We noted prey switching between wild and domestic ungulates for individuals spanning protected forests and farmland. This first scat-based study exploring individual variation in jaguar diet highlights the importance of armadillos and peccaries for male jaguars in Belize, the need for research on their roles in supporting high-density jaguar populations, and the need for more data on female diet from across the jaguar range.
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4
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Whitworth A, Beirne C, Basto A, Flatt E, Tobler M, Powell G, Terborgh J, Forsyth A. Disappearance of an ecosystem engineer, the white-lipped peccary (Tayassu pecari), leads to density compensation and ecological release. Oecologia 2022; 199:937-949. [PMID: 35963917 PMCID: PMC9464176 DOI: 10.1007/s00442-022-05233-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 07/25/2022] [Indexed: 11/28/2022]
Abstract
Given the rate of biodiversity loss, there is an urgent need to understand community-level responses to extirpation events, with two prevailing hypotheses. On one hand, the loss of an apex predator leads to an increase in primary prey species, triggering a trophic cascade of other changes within the community, while density compensation and ecological release can occur because of reduced competition for resources and absence of direct aggression. White-lipped peccary (Tayassu pecari—WLP), a species that typically co-occurs with collared peccary (Pecari tajacu), undergo major population crashes—often taking 20 to 30-years for populations to recover. Using a temporally replicated camera trapping dataset, in both a pre- and post- WLP crash, we explore how WLP disappearance alters the structure of a Neotropical vertebrate community with findings indicative of density compensation. White-lipped peccary were the most frequently detected terrestrial mammal in the 2006–2007 pre-population crash period but were undetected during the 2019 post-crash survey. Panthera onca (jaguar) camera trap encounter rates declined by 63% following the WLP crash, while collared peccary, puma (Puma concolor), red-brocket deer (Mazama americana) and short-eared dog (Atelocynus microtis) all displayed greater encounter rates (490%, 150%, 280%, and 500% respectively), and increased in rank-abundance. Absence of WLP was correlated with ecological release changes in habitat-use for six species, with the greatest increase in use in the preferred floodplain habitat of the WLP. Surprisingly, community-weighted mean trait distributions (body size, feeding guild and nocturnality) did not change, suggesting functional redundancy in diverse tropical mammal assemblages.
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Affiliation(s)
- Andrew Whitworth
- Osa Conservation, Washington, DC, USA. .,Institute of Biodiversity, Animal Health and Comparative Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, Scotland, UK. .,Department of Biology, Center for Energy, Environment, and Sustainability, Wake Forest University, Winston-Salem, NC, USA.
| | - Christopher Beirne
- Department of Forest Resources Management, University of British Columbia, Vancouver, Canada
| | - Arianna Basto
- Osa Conservation, Washington, DC, USA.,Conservación Amazónica, Lima, Perú.,Human Dimensions of Natural Resources, Colorado State University, Fort Collins, CO, USA
| | | | | | | | - John Terborgh
- Nicholas School of the Environment, Duke University, Durham, NC, USA
| | - Adrian Forsyth
- Osa Conservation, Washington, DC, USA.,Andes Amazon Fund, Washington, DC, USA
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5
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Entringer H, Del Duque HJ, Chiarello AG, Srbek-Araujo AC. Temporal variation of the diet of a top terrestrial predator: the jaguar as a case study. MAMMAL RES 2022. [DOI: 10.1007/s13364-022-00648-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Abstract
Most natural ecosystems contain animals feeding on many different types of food, but it is difficult to predict what will be eaten when food availabilities change. We present a method that estimates food preference over many study sites, even when number of food types vary widely from site to site. Sampling variation is estimated using bootstrapping. We test the precision and accuracy of this method using computer simulations that show the effects of overall number of food types, number of sites, and proportion of missing prey items per site. Accuracy is greater with fewer missing prey types, more prey types and more sites, and is affected by the number of sites more than the number of prey types. We present a case study using lion (Panthera leo) feeding data and show that preference vs prey size follows a bell-curve. Using just two estimated parameters, this curve can be used as a general way to describe predator feeding patterns. Our method can be used to: test hypotheses about what factors affect prey selection, predict preferences in new sites, and estimate overall prey consumed in new sites.
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Affiliation(s)
- Vilis O. Nams
- Department of Plant, Food and Environmental Sciences, Faculty of Agriculture, Dalhousie University, Truro, Nova Scotia, Canada
- * E-mail:
| | - Matt W. Hayward
- School of Environmental and Life Sciences, University of Newcastle, Callaghan, New South Wales, Australia
- Mammal Research Institute, University of Pretoria, Hatfield, Pretoria, South Africa
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Castañeda I, Doherty TS, Fleming PA, Stobo‐Wilson AM, Woinarski JCZ, Newsome TM. Variation in red fox
Vulpes vulpes
diet in five continents. Mamm Rev 2022. [DOI: 10.1111/mam.12292] [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)
- Irene Castañeda
- Ecology and Genetics of Conservation and Restoration, UMR INRA 1202 BIOGECO Université de Bordeaux 33615 Pessac France
| | - Tim S. Doherty
- School of Life and Environmental Sciences The University of Sydney Sydney NSW 2006 Australia
| | - Patricia A. Fleming
- Terrestrial Ecosystem Science and Sustainability, Harry Butler Institute Murdoch University Perth WA 6150 Australia
| | - Alyson M. Stobo‐Wilson
- NESP Threatened Species Recovery Hub Charles Darwin University Casuarina NT 0909 Australia
| | - John C. Z. Woinarski
- NESP Threatened Species Recovery Hub Charles Darwin University Casuarina NT 0909 Australia
| | - Thomas M. Newsome
- School of Life and Environmental Sciences The University of Sydney Sydney NSW 2006 Australia
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8
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Jaguars in the matrix: population, prey abundance and land-cover change in a fragmented landscape in western Mexico. ORYX 2022. [DOI: 10.1017/s0030605321001617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Abstract
Habitat fragmentation threatens biodiversity worldwide, particularly affecting large-bodied species that require vast territories and move across long distances, including most large felids. The jaguar Panthera onca has lost more than half of its habitat throughout its range and its subpopulations are becoming isolated, making them susceptible to local extinction. Knowledge about the status of its subpopulations in highly fragmented environments is lacking but urgently needed. Using camera traps during 2019–2020, we estimated number of individuals, age classes and sex ratio, occupancy, relative abundance and density of jaguars in Nayarit, western Mexico. We also determined the relative abundance of potential prey and estimated the land-cover change rate during 1999–2019, using GIS. We found that a resident subpopulation of five adult females, two adult males and one cub, at a high density (5.3 individuals/100 km2), is supported by at least 14 wild prey species. Natural habitat in the area is rapidly decreasing because of expanding agriculture and shrimp farming: agricultural areas increased from 39 to 50% and mangroves decreased from 35 to 26% of the study area over 20 years. The high jaguar population density and the diversity and relative abundance of remaining wild prey are remarkable, considering that natural habitat in the area is highly fragmented, shrinking rapidly and embedded in a matrix of human-dominated land-cover types. Effective conservation actions are needed urgently, including the protection of patches with native vegetation, reforestation to maintain connectivity between these patches, and the involvement of local communities.
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Cristescu B, Elbroch LM, Dellinger JA, Binder W, Wilmers CC, Wittmer HU. Kill rates and associated ecological factors for an apex predator. Mamm Biol 2022. [DOI: 10.1007/s42991-022-00240-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AbstractKill rates and functional responses are fundamental to the study of predator ecology and the understanding of predatory-prey dynamics. As the most widely distributed apex predator in the western hemisphere, pumas (Puma concolor) have been well studied, yet a synthesis of their kill rates is currently lacking. We reviewed the literature and compiled data on sex- and age-specific kill rate estimates of pumas on ungulates, and conducted analyses aimed at understanding ecological factors explaining the observed spatial variation. Kill rate studies on pumas, while numerous, were primarily conducted in Temperate Conifer Forests (< 10% of puma range), revealing a dearth of knowledge across much of their range, especially from tropical and subtropical habitats. Across studies, kill rates in ungulates/week were highest for adult females with kitten(s) (1.24 ± 0.41 ungulates/week) but did not vary significantly between adult males (0.84 ± 0.18) and solitary adult females (0.99 ± 0.26). Kill rates in kg/day differed only marginally among reproductive classes. Kill rates of adult pumas increased with ungulate density, particularly for males. Ungulate species richness had a weak negative association with adult male kill rates. Neither scavenger richness, puma density, the proportion of non-ungulate prey in the diet, nor regional human population density had a significant effect on ungulate kill rates, but additional studies and standardization would provide further insights. Our results had a strong temperate-ecosystem bias highlighting the need for further research across the diverse biomes pumas occupy to fully interpret kill rates for the species. Data from more populations would also allow for multivariate analyses providing deeper inference into the ecological and behavioural factors driving kill rates and functional responses of pumas, and apex predators in general.
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10
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Kaiser M, Guzmán Marín BC. An unusually big challenge: first record of Leopardus guigna preying upon Pudu puda. MAMMALIA 2022. [DOI: 10.1515/mammalia-2021-0087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Notwithstanding the very small size of this felid, Leopardus guigna is considered a top predator within its habitat. Its diet consists of small mammals, birds and reptiles, according to the available literature, but its predatory behaviour has rarely been observed directly. Here we report the first record of L. guigna preying upon Pudu puda in southern Chile. Photographic material has been obtained in a citizen science project and indicates a significant expansion of the cat’s prey size range. It also adds valuable knowledge to conservation efforts focusing on the near threatened cervid.
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Affiliation(s)
- Melanie Kaiser
- Faculty of Natural Resources and Veterinary Medicine , Santo Tomás University , Puerto Montt , Chile
- Foundation for Wild Cat Coordination , General Bustamante 1015 , Santiago Región Metropolitana , 7750561 Santiago , Chile
| | - Byron Cristian Guzmán Marín
- Foundation for Wild Cat Coordination , General Bustamante 1015 , Santiago Región Metropolitana , 7750561 Santiago , Chile
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11
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Carral-García M, Buenrostro I, Weissenberger H, Rosales V, Pérez-Flores J. Dog predation by jaguars in a tourist town on the Mexican Caribbean. NEOTROPICAL BIOLOGY AND CONSERVATION 2021. [DOI: 10.3897/neotropical.16.e68973] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Invasion of humans and dogs into the jaguars’ habitat opens the way for future negative events. Dog predation by jaguars has only been recorded anecdotally, despite the high risk of pathogen transmission and the potential conflict due to pet predation. In this study, we document jaguar attacks on dogs in Mahahual, Quintana Roo, Mexico, a tourist town in the Mexican Caribbean. In addition, we describe an initiative designed to prevent jaguar persecution by constructing night houses for dogs at the most recent attack sites. A total of 20 attacks were recorded in the last nine years, most of them fatal (60%) on medium-sized dogs (70%), at night (95%) and during the dry season (65%). Half of the attacks occurred in the north of Mahahual´s coastline and the other half in the south. Attacks in the south were concentrated between 0 to 10 km away from the village, while in the north they were dispersed over distances between 0 and > 30 km. Thirty-eight night houses were constructed covering almost 45 km of the 135 km of Mahahual’s coastline. Further research is required to understand the importance of dogs in the jaguar diet and the impact of dog predation on the health and disease ecology of jaguar populations.
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12
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Gallo-Reynoso JP. Jaguar Panthera onca (Linnaeus, 1758) (Mammalia: Carnivora: Felidae) presumably feeding on Flathead Catfish Pylodictis olivaris (Rafinesque, 1818) (Actinopterygii: Siluriformes: Ictaluridae) at Aros and Yaqui rivers, Sonora, Mexico. JOURNAL OF THREATENED TAXA 2021. [DOI: 10.11609/jott.7484.13.9.19358-19362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Despite the abundant literature on the feeding preferences of the Jaguar Panthera onca throughout its range in America, few studies report fish consumed as prey by Jaguars. This paper reports two accounts of Jaguars presumably feeding on the introduced Flathead Catfish Pylodictis olivaris at the Aros and Yaqui rivers in Sonora, northwestern Mexico.
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Thompson JJ, Morato RG, Niebuhr BB, Alegre VB, Oshima JEF, de Barros AE, Paviolo A, de la Torre JA, Lima F, McBride RT, Cunha de Paula R, Cullen L, Silveira L, Kantek DLZ, Ramalho EE, Maranhão L, Haberfeld M, Sana DA, Medellin RA, Carrillo E, Montalvo VH, Monroy-Vilchis O, Cruz P, Jacomo ATA, Alves GB, Cassaigne I, Thompson R, Sáenz-Bolaños C, Cruz JC, Alfaro LD, Hagnauer I, Xavier da Silva M, Vogliotti A, Moraes MFD, Miyazaki SS, Araujo GR, Cruz da Silva L, Leuzinger L, Carvalho MM, Rampim L, Sartorello L, Quigley H, Tortato FR, Hoogesteijn R, Crawshaw PG, Devlin AL, May Júnior JA, Powell GVN, Tobler MW, Carrillo-Percastegui SE, Payán E, Azevedo FCC, Concone HVB, Quiroga VA, Costa SA, Arrabal JP, Vanderhoeven E, Di Blanco YE, Lopes AMC, Ribeiro MC. Environmental and anthropogenic factors synergistically affect space use of jaguars. Curr Biol 2021; 31:3457-3466.e4. [PMID: 34237270 DOI: 10.1016/j.cub.2021.06.029] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 03/04/2021] [Accepted: 06/10/2021] [Indexed: 01/05/2023]
Abstract
Large terrestrial carnivores have undergone some of the largest population declines and range reductions of any species, which is of concern as they can have large effects on ecosystem dynamics and function.1-4 The jaguar (Panthera onca) is the apex predator throughout the majority of the Neotropics; however, its distribution has been reduced by >50% and it survives in increasingly isolated populations.5 Consequently, the range-wide management of the jaguar depends upon maintaining core populations connected through multi-national, transboundary cooperation, which requires understanding the movement ecology and space use of jaguars throughout their range.6-8 Using GPS telemetry data for 111 jaguars from 13 ecoregions within the four biomes that constitute the majority of jaguar habitat, we examined the landscape-level environmental and anthropogenic factors related to jaguar home range size and movement parameters. Home range size decreased with increasing net productivity and forest cover and increased with increasing road density. Speed decreased with increasing forest cover with no sexual differences, while males had more directional movements, but tortuosity in movements was not related to any landscape factors. We demonstrated a synergistic relationship between landscape-scale environmental and anthropogenic factors and jaguars' spatial needs, which has applications to the conservation strategy for the species throughout the Neotropics. Using large-scale collaboration, we overcame limitations from small sample sizes typical in large carnivore research to provide a mechanism to evaluate habitat quality for jaguars and an inferential modeling framework adaptable to the conservation of other large terrestrial carnivores.
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Affiliation(s)
- Jeffrey J Thompson
- Asociación Guyra Paraguay and CONACYT, Parque Ecológico Asunción Verde, Asunción, Paraguay; Insituto Saite, Asunción, Paraguay.
| | - Ronaldo G Morato
- Centro Nacional de Pesquisa e Conservação de Mamíferos Carnívoros, Instituto Chico Mendes de Conservação da Biodiversidade, Atibaia, SP 12952011, Brazil
| | - Bernardo B Niebuhr
- Centro Nacional de Pesquisa e Conservação de Mamíferos Carnívoros, Instituto Chico Mendes de Conservação da Biodiversidade, Atibaia, SP 12952011, Brazil; Instituto de Biociências, Universidade Estadual Paulista-UNESP, Departamento de Biodiversidade, Laboratório de Ecologia Espacial e Conservação LEEC, Rio Claro, SP 13506900, Brazil; Instituto Pró-Carnívoros, Atibaia, SP 12945010, Brazil; Department of Animal Nutrition and Management, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Vanesa Bejarano Alegre
- Instituto de Biociências, Universidade Estadual Paulista-UNESP, Departamento de Biodiversidade, Laboratório de Ecologia Espacial e Conservação LEEC, Rio Claro, SP 13506900, Brazil
| | - Júlia Emi F Oshima
- Instituto de Biociências, Universidade Estadual Paulista-UNESP, Departamento de Biodiversidade, Laboratório de Ecologia Espacial e Conservação LEEC, Rio Claro, SP 13506900, Brazil
| | - Alan E de Barros
- Instituto de Biociências, Departamento de Ecologia, Universidade de São Paulo, Rua do Matão, Trav. 14, no. 321, Cidade Universitária, São Paulo, SP 05508-090, Brazil
| | - Agustín Paviolo
- Instituto de Biología Subtropical, Universidad Nacional de Misiones and CONICET, Puerto Iguazú, Misiones 3370, Argentina; Asociación Civil Centro de Investigaciones del Bosque Atlántico, Puerto Iguazú, Misiones 3370, Argentina
| | - J Antonio de la Torre
- Programa Jaguares de la Selva Maya, Bioconciencia A.C., Ciudad de México, México; School of Environmental and Geographical Sciences, University of Nottingham Malaysia, Jalan Broga, 43500 Semenyih, Selangor, Malaysia
| | - Fernando Lima
- Instituto de Biociências, Universidade Estadual Paulista-UNESP, Departamento de Biodiversidade, Laboratório de Ecologia Espacial e Conservação LEEC, Rio Claro, SP 13506900, Brazil; IPÊ-Instituto de Pesquisas Ecológicas, Nazaré Paulista, SP 12960000, Brazil
| | - Roy T McBride
- Faro Moro Eco Research, Estancia Faro Moro, Departamento de Boquerón, Paraguay
| | - Rogerio Cunha de Paula
- Centro Nacional de Pesquisa e Conservação de Mamíferos Carnívoros, Instituto Chico Mendes de Conservação da Biodiversidade, Atibaia, SP 12952011, Brazil
| | - Laury Cullen
- IPÊ-Instituto de Pesquisas Ecológicas, Nazaré Paulista, SP 12960000, Brazil
| | | | - Daniel L Z Kantek
- Estacao Ecológica Taiamã, Instituto Chico Mendes de Conservação da Biodiversidade, Cáceres, MT 78210625, Brazil
| | - Emiliano E Ramalho
- Instituto Pró-Carnívoros, Atibaia, SP 12945010, Brazil; Instituto de Desenvolvimento Sustentável Mamirauá, Tefé, AM 69553225, Brazil
| | - Louise Maranhão
- Instituto de Desenvolvimento Sustentável Mamirauá, Tefé, AM 69553225, Brazil
| | - Mario Haberfeld
- Associação Onçafari, Rua Ferreira de Araújo, 221, Cj.14, Sala 4, Pinheiros, São Paulo, SP 05428-000, Brazil; Panthera, 8 West 40th Street, 18th Floor, New York, NY 10018, USA; Instituto SOS Pantanal, R. Gutemberg, 328 Centro, Campo Grande, MS 79002-160, Brazil
| | - Denis A Sana
- Instituto Pró-Carnívoros, Atibaia, SP 12945010, Brazil; Programa de Pós-graduação em Biologia Animal, Instituto de Biociências, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS 91501970, Brazil
| | - Rodrigo A Medellin
- Instituto de Ecología, Universidad Nacional Autónoma de México and CONACyT, Ciudad Universitaria, México D.F. 04318, México
| | - Eduardo Carrillo
- Instituto Internacional en Conservación y Manejo de Vida Silvestre, Universidad Nacional de Costa Rica, Heredia 1350-3000, Costa Rica
| | - Victor H Montalvo
- Instituto Internacional en Conservación y Manejo de Vida Silvestre, Universidad Nacional de Costa Rica, Heredia 1350-3000, Costa Rica; Department of Environmental Conservation, University of Massachusetts, Amherst, Amherst, MA 01003, USA
| | - Octavio Monroy-Vilchis
- Centro de Investigación en Ciencias Biológicas Aplicadas, Universidad Autónoma del Estado de México, Instituto Literario 100, Col. Centro C.P. 50000, Toluca, Estado de México
| | - Paula Cruz
- Instituto de Biología Subtropical, Universidad Nacional de Misiones and CONICET, Puerto Iguazú, Misiones 3370, Argentina; Asociación Civil Centro de Investigaciones del Bosque Atlántico, Puerto Iguazú, Misiones 3370, Argentina
| | | | - Giselle B Alves
- Instituto Onça Pintada, Mineiros, GO 75830000, Brazil; Instituto de Biologia, Laboratório de Ecologia de Mamíferos LEMA, Universidade Federal de Uberlândia, Uberlândia, MG 38408100, Brazil
| | | | - Ron Thompson
- Primero Conservation, Box 1588, Pinetop, AZ 85935, USA
| | - Carolina Sáenz-Bolaños
- Instituto Internacional en Conservación y Manejo de Vida Silvestre, Universidad Nacional de Costa Rica, Heredia 1350-3000, Costa Rica; Department of Environmental Conservation, University of Massachusetts, Amherst, Amherst, MA 01003, USA
| | - Juan Carlos Cruz
- Department of Environmental Conservation, University of Massachusetts, Amherst, Amherst, MA 01003, USA; Namá Conservation, Heredia 40101, Costa Rica
| | - Luis D Alfaro
- Instituto Internacional en Conservación y Manejo de Vida Silvestre, Universidad Nacional de Costa Rica, Heredia 1350-3000, Costa Rica
| | - Isabel Hagnauer
- Rescate Animal Zooave, Fundación Restauración de la Naturaleza, Apdo 1327-4050, Alajuela, Costa Rica
| | | | - Alexandre Vogliotti
- Universidade Federal da Integração Latino-Americana, Instituto Latino-Americano de Ciências da Vida e da Natureza, Foz do Iguaçu, PR 85851970, Brazil
| | | | - Selma S Miyazaki
- Estacao Ecológica Taiamã, Instituto Chico Mendes de Conservação da Biodiversidade, Cáceres, MT 78210625, Brazil
| | - Gediendson R Araujo
- Universidade Federal de Mato Grosso do Sul, Faculdade de Medicina Veterinária e Zootecnia, Campo Grande, MS 79070-900, Brasil; Instituto Onças do Rio Negro, Fazenda Barranco Alto, Aquidauana, MS 79208000, Brazil
| | - Leanes Cruz da Silva
- Instituto Onças do Rio Negro, Fazenda Barranco Alto, Aquidauana, MS 79208000, Brazil; Departamento de Medicina Veterinária, Universidade Federal de Viçosa, Viçosa, MG 36570, Brazil
| | - Lucas Leuzinger
- Instituto Onças do Rio Negro, Fazenda Barranco Alto, Aquidauana, MS 79208000, Brazil
| | - Marina M Carvalho
- Instituto de Defesa e Preservação dos Felídeos Brasileiros, Corumbá de Goiás, GO 72960000, Brazil
| | - Lilian Rampim
- Associação Onçafari, Rua Ferreira de Araújo, 221, Cj.14, Sala 4, Pinheiros, São Paulo, SP 05428-000, Brazil
| | - Leonardo Sartorello
- Associação Onçafari, Rua Ferreira de Araújo, 221, Cj.14, Sala 4, Pinheiros, São Paulo, SP 05428-000, Brazil
| | - Howard Quigley
- Panthera, 8 West 40th Street, 18th Floor, New York, NY 10018, USA
| | | | | | - Peter G Crawshaw
- Centro Nacional de Pesquisa e Conservação de Mamíferos Carnívoros, Instituto Chico Mendes de Conservação da Biodiversidade, Atibaia, SP 12952011, Brazil
| | - Allison L Devlin
- Panthera, 8 West 40th Street, 18th Floor, New York, NY 10018, USA; SUNY College of Environmental Science & Forestry, Syracuse, NY 13210, USA; Wildlife Biology Program, W.A. Franke College of Forestry & Conservation, University of Montana, Missoula, MT 59812, USA
| | - Joares A May Júnior
- Instituto Pró-Carnívoros, Atibaia, SP 12945010, Brazil; Associação Onçafari, Rua Ferreira de Araújo, 221, Cj.14, Sala 4, Pinheiros, São Paulo, SP 05428-000, Brazil; Panthera, 8 West 40th Street, 18th Floor, New York, NY 10018, USA; Universidade do Sul de Santa Catarina, Tubarão, SC 88704-900, Brazil
| | - George V N Powell
- Wildlife Protection Solutions, 2501 Welton Street, Denver, CO 80205, USA
| | - Mathias W Tobler
- San Diego Zoo Global, Institute for Conservation Research, 15600 San Pasqual Valley Road, Escondido, CA 92027, USA
| | - Samia E Carrillo-Percastegui
- San Diego Zoo Global, Institute for Conservation Research, 15600 San Pasqual Valley Road, Escondido, CA 92027, USA
| | - Estebán Payán
- Panthera, 8 West 40th Street, 18th Floor, New York, NY 10018, USA
| | - Fernando C C Azevedo
- Instituto Pró-Carnívoros, Atibaia, SP 12945010, Brazil; Universidade Federal de São João del Rei, Departamento de Ciências Naturais, São João del Rei, MG 36301160, Brazil
| | - Henrique V B Concone
- Instituto Pró-Carnívoros, Atibaia, SP 12945010, Brazil; Laboratório de Ecologia, Manejo e Conservação de Fauna Silvestre, Programa de Pós-Graduação Interunidades em Ecologia Aplicada, Universidade de São Paulo ESALQ/CENA, Piracicaba, SP 13418-900, Brazil
| | - Verónica A Quiroga
- Asociación Civil Centro de Investigaciones del Bosque Atlántico, Puerto Iguazú, Misiones 3370, Argentina; Universidad Nacional de Córdoba, Facultad de Ciencias Exactas, Físicas y Naturales, Centro de Zoología Aplicada, Córdoba, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas CONICET, Instituto de Diversidad y Ecología Animal IDEA, Córdoba, Argentina
| | - Sebastián A Costa
- Instituto de Biología Subtropical, Universidad Nacional de Misiones and CONICET, Puerto Iguazú, Misiones 3370, Argentina; Asociación Civil Centro de Investigaciones del Bosque Atlántico, Puerto Iguazú, Misiones 3370, Argentina
| | - Juan P Arrabal
- Asociación Civil Centro de Investigaciones del Bosque Atlántico, Puerto Iguazú, Misiones 3370, Argentina; Instituto Nacional de Medicina Tropical ANLIS, Ministerio de Salud de la Nación, Puerto Iguazú, Misiones 3370, Argentina
| | - Ezequiel Vanderhoeven
- Asociación Civil Centro de Investigaciones del Bosque Atlántico, Puerto Iguazú, Misiones 3370, Argentina; Instituto Nacional de Medicina Tropical ANLIS, Ministerio de Salud de la Nación, Puerto Iguazú, Misiones 3370, Argentina
| | - Yamil E Di Blanco
- Instituto de Biología Subtropical, Universidad Nacional de Misiones and CONICET, Puerto Iguazú, Misiones 3370, Argentina; Asociación Civil Centro de Investigaciones del Bosque Atlántico, Puerto Iguazú, Misiones 3370, Argentina
| | - Alexandre M C Lopes
- Instituto de Pesquisa e Conservação de Tamanduás do Brasil, Parnaíba, PI 64200025, Brazil
| | - Milton Cezar Ribeiro
- Instituto de Biociências, Universidade Estadual Paulista-UNESP, Departamento de Biodiversidade, Laboratório de Ecologia Espacial e Conservação LEEC, Rio Claro, SP 13506900, Brazil
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14
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Sanderson EW, Beckmann JP, Beier P, Bird B, Bravo JC, Fisher K, Grigione MM, López González CA, Miller JRB, Mormorunni C, Paulson L, Peters R, Polisar J, Povilitis T, Robinson MJ, Wilcox S. The case for reintroduction: The jaguar (
Panthera onca
) in the United States as a model. CONSERVATION SCIENCE AND PRACTICE 2021. [DOI: 10.1111/csp2.392] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Affiliation(s)
- Eric W. Sanderson
- Wildlife Conservation Society, Global Conservation Program Bronx New York USA
| | - Jon P. Beckmann
- Wildlife Conservation Society, Rocky Mountain Program Santa Fe New Mexico USA
| | - Paul Beier
- Center for Large Landscape Conservation Bozeman Montana USA
| | - Bryan Bird
- Defenders of Wildlife, Field Conservation—Southwest Office Santa Fe New Mexico USA
| | - Juan Carlos Bravo
- Wildlands Network, Programa Mexico y Tierras Fronterizas Salt Lake City Utah USA
| | - Kim Fisher
- Wildlife Conservation Society, Global Conservation Program Bronx New York USA
| | | | | | | | - Cristina Mormorunni
- Wildlife Conservation Society, Rocky Mountain Program Santa Fe New Mexico USA
| | - Laura Paulson
- Wildlife Conservation Society, Rocky Mountain Program Santa Fe New Mexico USA
| | - Rob Peters
- Defenders of Wildlife, Field Conservation—Southwest Office Santa Fe New Mexico USA
| | - John Polisar
- Smithsonian Mason School of Conservation Front Royal Virginia USA
| | | | | | - Sharon Wilcox
- Defenders of Wildlife, Field Conservation—Southwest Office Santa Fe New Mexico USA
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15
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Detection of Ehrlichia sp. in Amblyomma sculptum parasitizing horses from Brazilian Pantanal wetland. Ticks Tick Borne Dis 2021; 12:101658. [PMID: 33556777 DOI: 10.1016/j.ttbdis.2021.101658] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 12/30/2020] [Accepted: 01/10/2021] [Indexed: 11/21/2022]
Abstract
Bacteria of the genus Ehrlichia are transmitted by ticks and also are an important cause of infection in wild and domestic mammals. Infection with Ehrlichia spp. has been reported in horses, especially in the USA, Nicaragua and Brazil. In this study, we report the parasitism by Amblyomma sculptum, Rhipicephalus microplus and Dermacentor nitens ticks in horses from a ranch located in south Pantanal wetland. Molecular and serological analyzes to determine infection by Ehrlichia spp. in horses and their respective ticks were carried out. A total of 12 horses were submitted to blood collection to investigate antibodies by indirect immunofluorescence assay (IFA) using Ehrlichia canis crude antigens and to be tested by polymerase chain reaction (PCR) in order to amplify fragments of the 16S rRNA, dsb, groEL and sodB gene of Ehrlichia spp. A total of 164 tick specimens were removed from horses, stored in isopropanol and later identified as D. nitens, A. sculptum and R. microplus. DNA from ticks were extracted and subjected to the same PCR assays to detect Ehrlichia spp. Anti-Ehrlichia spp. antibodies were detected in five/12 (41.7 %) horses by IFA, with antibody titers ranging from 40 to 160. All horse DNA samples were negative for the 16S rRNA, dsb, groEL and sodB of Ehrlichia spp. One A. sculptum female was positive to all target genes of Ehrlichia. This tick was parasitizing an Ehrlichia-seropositive horse with antibody titer of 80. Nucleotide sequences of 16S rRNA, dsb, groEL and sodB genes showed close relationship with different strains of Ehrlichia detected in wild mammals, Amblyomma ticks and horses from Brazil and Argentina. Detection of anti-Ehrlichia sp. antibodies suggests that horses have been exposed to an ehrlichial agent in the Pantanal. Future studies on Ehrlichia infection should be carried out to better elucidate and to bring new information about equine ehrlichiosis, since these animals are important hosts of ticks in the Brazilian Pantanal wetlands.
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16
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Perera‐Romero L, Garcia‐Anleu R, McNab RB, Thornton DH. When waterholes get busy, rare interactions thrive: Photographic evidence of a jaguar (
Panthera onca
) killing an ocelot (
Leopardus pardalis
). Biotropica 2020. [DOI: 10.1111/btp.12916] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | - Roan Balas McNab
- Wildlife Conservation Society – Guatemala Program Petén Guatemala
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17
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Anthropogenic factors disproportionately affect the occurrence and potential population connectivity of the Neotropic’s apex predator: The jaguar at the southwestern extent of its distribution. Glob Ecol Conserv 2020. [DOI: 10.1016/j.gecco.2020.e01356] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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18
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Monette VD, Kelly MJ, Buchholz R. Human disturbance and the activity patterns and temporal overlap of tapirs and jaguars in reserves of NW Belize. Biotropica 2020. [DOI: 10.1111/btp.12834] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - Marcella J. Kelly
- Department of Fish and Wildlife Conservation Virginia Tech Blacksburg VA USA
| | - Richard Buchholz
- Department of Biology University of Mississippi, University MS USA
- Center for Biodiversity & Conservation Research University of Mississippi, University MS USA
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19
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Pérez-Flores J, Arias-Domínguez H, Arias-Domínguez N. First documented predation of a Baird’s tapir by a jaguar in the Calakmul region, Mexico. NEOTROPICAL BIOLOGY AND CONSERVATION 2020. [DOI: 10.3897/neotropical.15.e57029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
To date, records of predation on Baird’s tapir (Tapirus bairdii) by jaguars (Panthera onca) were anecdotal and did not allow for differentiation regarding whether the animal had been preyed upon or scavenged. Here, we present the first documented event of predation on a Baird’s tapir by a jaguar in the Calakmul region, Campeche, Mexico. In August 2017, we observed a jaguar eating a juvenile female Baird’s tapir; when we analysed the skull, we observed the characteristic “lethal bite” with which jaguars kill their prey by piercing the temporal and parietal bones with their canine teeth. Jaguars select to attack tapirs when they are most vulnerable (young or sick). Records of these type of events are important for understanding the food webs and ecology of these iconic Neotropical species that inhabit the Mesoamerican forests.
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20
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Abundance of jaguars and occupancy of medium- and large-sized vertebrates in a transboundary conservation landscape in the northwestern Amazon. Glob Ecol Conserv 2020. [DOI: 10.1016/j.gecco.2020.e01079] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
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21
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22
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Tóth AB, Lyons SK, Barr WA, Behrensmeyer AK, Blois JL, Bobe R, Davis M, Du A, Eronen JT, Faith JT, Fraser D, Gotelli NJ, Graves GR, Jukar AM, Miller JH, Pineda-Munoz S, Soul LC, Villaseñor A, Alroy J. Reorganization of surviving mammal communities after the end-Pleistocene megafaunal extinction. Science 2020; 365:1305-1308. [PMID: 31604240 DOI: 10.1126/science.aaw1605] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Accepted: 08/23/2019] [Indexed: 12/29/2022]
Abstract
Large mammals are at high risk of extinction globally. To understand the consequences of their demise for community assembly, we tracked community structure through the end-Pleistocene megafaunal extinction in North America. We decomposed the effects of biotic and abiotic factors by analyzing co-occurrence within the mutual ranges of species pairs. Although shifting climate drove an increase in niche overlap, co-occurrence decreased, signaling shifts in biotic interactions. Furthermore, the effect of abiotic factors on co-occurrence remained constant over time while the effect of biotic factors decreased. Biotic factors apparently played a key role in continental-scale community assembly before the extinctions. Specifically, large mammals likely promoted co-occurrence in the Pleistocene, and their loss contributed to the modern assembly pattern in which co-occurrence frequently falls below random expectations.
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Affiliation(s)
- Anikó B Tóth
- Department of Biological Sciences, Macquarie University, New South Wales 2109, Australia.
| | - S Kathleen Lyons
- School of Biological Sciences, University of Nebraska, Lincoln, NE 68588, USA
| | - W Andrew Barr
- Center for the Advanced Study of Human Paleobiology, Department of Anthropology, The George Washington University, Washington, DC 20052, USA
| | - Anna K Behrensmeyer
- Department of Paleobiology, Evolution of Terrestrial Ecosystems Program, National Museum of Natural History, Smithsonian Institution, Washington, DC 20013, USA
| | - Jessica L Blois
- School of Natural Sciences, University of California, Merced, CA 95343, USA
| | - René Bobe
- Departamento de Antropología, Facultad de Ciencias Sociales, Universidad de Chile, Santiago, Chile.,Interdisciplinary Center for Archaeology and Evolution of Human Behavior (ICArEHB), Universidade do Algarve, Faro, Portugal
| | - Matt Davis
- Natural History Museum of Los Angeles Country, Los Angeles, CA 90007, USA
| | - Andrew Du
- Department of Anthropology and Geography, Colorado State University, Fort Collins, CO 80523, USA
| | - Jussi T Eronen
- Ecosystems and Environment Research Programme and Helsinki Institute of Sustainability Science (HELSUS), Faculty of Biological and Environmental Sciences, 00014 University of Helsinki, Finland.,BIOS Research Unit, Meritullintori 6, 00170 Helsinki, Finland
| | - J Tyler Faith
- Natural History Museum of Utah and Department of Anthropology, University of Utah, Salt Lake City, UT 84108, USA
| | - Danielle Fraser
- Palaeobiology, Canadian Museum of Nature, Ottawa, ON K1P 6P, Canada.,Departments of Biology and Earth Sciences, Carleton University, Ottawa, ON K1S 5B6, Canada
| | | | - Gary R Graves
- Center for Macroecology, Evolution and Climate, University of Copenhagen, 2100 Copenhagen Ø, Denmark.,Department of Vertebrate Zoology, National Museum of Natural History, Smithsonian Institution, Washington, DC 20013, USA
| | - Advait M Jukar
- Department of Paleobiology, Evolution of Terrestrial Ecosystems Program, National Museum of Natural History, Smithsonian Institution, Washington, DC 20013, USA
| | - Joshua H Miller
- Department of Geology, University of Cincinnati, Cincinnati, OH 45221, USA
| | - Silvia Pineda-Munoz
- Department of Paleobiology, Evolution of Terrestrial Ecosystems Program, National Museum of Natural History, Smithsonian Institution, Washington, DC 20013, USA.,Spatial Ecology and Paleontology Lab (SEPL), School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA, USA
| | - Laura C Soul
- Department of Paleobiology, Evolution of Terrestrial Ecosystems Program, National Museum of Natural History, Smithsonian Institution, Washington, DC 20013, USA
| | - Amelia Villaseñor
- Department of Anthropology, University of Arkansas, Fayetteville, AR 72701, USA
| | - John Alroy
- Department of Biological Sciences, Macquarie University, New South Wales 2109, Australia
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23
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Figel JJ, Botero-Cañola S, Forero-Medina G, Sánchez-Londoño JD, Valenzuela L, Noss RF. Wetlands are keystone habitats for jaguars in an intercontinental biodiversity hotspot. PLoS One 2019; 14:e0221705. [PMID: 31509559 PMCID: PMC6738587 DOI: 10.1371/journal.pone.0221705] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Accepted: 08/13/2019] [Indexed: 11/17/2022] Open
Abstract
Agricultural development was the major contributor to South America's designation as the continent with the highest rates of forest loss from 2000-2012. As the apex predator in the Neotropics, jaguars (Panthera onca) are dependent on forest cover but the species' response to habitat fragmentation in heterogeneous agricultural landscapes has not been a subject of extensive research. We used occupancy as a measure of jaguar habitat use in Colombia's middle Magdalena River valley which, as part of the intercontinental Tumbes-Chocó-Magdalena biodiversity hotspot, is exceedingly fragmented by expanding cattle pastures and oil palm plantations. We used single-season occupancy models to analyze 9 months of data (2015-2016) from 70 camera trap sites. Given the middle Magdalena's status as a "jaguar corridor" and our possible violation of the occupancy models' demographic closure assumption, we interpreted our results as "probability of habitat use (Ψ)" by jaguars. We measured the associations between jaguar presence and coverage of forest, oil palm, and wetlands in radii buffers of 1, 3, and 5 km around each camera trap. Our camera traps recorded 77 jaguar detections at 25 of the camera trap sites (36%) during 15,305 trap nights. The probability of detecting jaguars, given their presence at a site, was 0.28 (0.03 SE). In the top-ranked model, jaguar habitat use was positively influenced by wetland coverage (β = 7.16, 3.20 SE) and negatively influenced by cattle pastures (β = -1.40, 0.63 SE), both in the 3 km buffers. We conclude that wetlands may serve as keystone habitats for jaguars in landscapes fragmented by cattle ranches and oil palm plantations. Greater focus on wetland preservation could facilitate jaguar persistence in one of the most important yet vulnerable areas of their distribution.
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Affiliation(s)
- Joe J. Figel
- Department of Biology, University of Central Florida, Orlando, Florida, United States of America
| | - Sebastián Botero-Cañola
- Harold W Manter Laboratory of Parasitology, University of Nebraska State Museum and School of Biological Sciences, University of Nebraska, Lincoln, Nebraska, United States of America
- Instituto de Biología, Grupo de Mastozoología, Universidad de Antioquia, Medellín, Colombia
| | | | - Juan David Sánchez-Londoño
- Facultad de Ciencias y Biotecnología, Universidad CES, Medellín, Colombia
- Fundación BioDiversa, Bogotá, Colombia
| | | | - Reed F. Noss
- Florida Institute for Conservation Science, Chuluota, Florida, United States of America
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24
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Lanszki J, Heltai M, Kövér G, Zalewski A. Non-linear relationship between body size of terrestrial carnivores and their trophic niche breadth and overlap. Basic Appl Ecol 2019. [DOI: 10.1016/j.baae.2019.06.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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25
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Schweiger AH, Boulangeat I, Conradi T, Davis M, Svenning JC. The importance of ecological memory for trophic rewilding as an ecosystem restoration approach. Biol Rev Camb Philos Soc 2019; 94:1-15. [PMID: 29877019 DOI: 10.1111/brv.12432] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 05/05/2018] [Accepted: 05/14/2018] [Indexed: 01/24/2023]
Abstract
Increasing human pressure on strongly defaunated ecosystems is characteristic of the Anthropocene and calls for proactive restoration approaches that promote self-sustaining, functioning ecosystems. However, the suitability of novel restoration concepts such as trophic rewilding is still under discussion given fragmentary empirical data and limited theory development. Here, we develop a theoretical framework that integrates the concept of 'ecological memory' into trophic rewilding. The ecological memory of an ecosystem is defined as an ecosystem's accumulated abiotic and biotic material and information legacies from past dynamics. By summarising existing knowledge about the ecological effects of megafauna extinction and rewilding across a large range of spatial and temporal scales, we identify two key drivers of ecosystem responses to trophic rewilding: (i) impact potential of (re)introduced megafauna, and (ii) ecological memory characterising the focal ecosystem. The impact potential of (re)introduced megafauna species can be estimated from species properties such as lifetime per capita engineering capacity, population density, home range size and niche overlap with resident species. The importance of ecological memory characterising the focal ecosystem depends on (i) the absolute time since megafauna loss, (ii) the speed of abiotic and biotic turnover, (iii) the strength of species interactions characterising the focal ecosystem, and (iv) the compensatory capacity of surrounding source ecosystems. These properties related to the focal and surrounding ecosystems mediate material and information legacies (its ecological memory) and modulate the net ecosystem impact of (re)introduced megafauna species. We provide practical advice about how to quantify all these properties while highlighting the strong link between ecological memory and historically contingent ecosystem trajectories. With this newly established ecological memory-rewilding framework, we hope to guide future empirical studies that investigate the ecological effects of trophic rewilding and other ecosystem-restoration approaches. The proposed integrated conceptual framework should also assist managers and decision makers to anticipate the possible trajectories of ecosystem dynamics after restoration actions and to weigh plausible alternatives. This will help practitioners to develop adaptive management strategies for trophic rewilding that could facilitate sustainable management of functioning ecosystems in an increasingly human-dominated world.
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Affiliation(s)
- Andreas H Schweiger
- Section for Ecoinformatics and Biodiversity, Department of Bioscience, Aarhus University, Ny Munkegade 114, 8000, Aarhus C, Denmark.,Plant Ecology, Bayreuth Center for Ecology and Environmental Research (BayCEER), University of Bayreuth, 95440, Bayreuth, Germany.,Center for Biodiversity Dynamics in a Changing World (BIOCHANGE), Aarhus University, Ny Munkegade 114, 8000, Aarhus C, Denmark
| | - Isabelle Boulangeat
- Section for Ecoinformatics and Biodiversity, Department of Bioscience, Aarhus University, Ny Munkegade 114, 8000, Aarhus C, Denmark.,University Grenoble Alpes, Irstea, UR LESSEM, 2 rue de la Papeterie-BP 76, F-38402, St-Martin-d'Hères, France
| | - Timo Conradi
- Section for Ecoinformatics and Biodiversity, Department of Bioscience, Aarhus University, Ny Munkegade 114, 8000, Aarhus C, Denmark.,Plant Ecology, Bayreuth Center for Ecology and Environmental Research (BayCEER), University of Bayreuth, 95440, Bayreuth, Germany
| | - Matt Davis
- Section for Ecoinformatics and Biodiversity, Department of Bioscience, Aarhus University, Ny Munkegade 114, 8000, Aarhus C, Denmark.,Center for Biodiversity Dynamics in a Changing World (BIOCHANGE), Aarhus University, Ny Munkegade 114, 8000, Aarhus C, Denmark
| | - Jens-Christian Svenning
- Section for Ecoinformatics and Biodiversity, Department of Bioscience, Aarhus University, Ny Munkegade 114, 8000, Aarhus C, Denmark.,Center for Biodiversity Dynamics in a Changing World (BIOCHANGE), Aarhus University, Ny Munkegade 114, 8000, Aarhus C, Denmark
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26
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Galetti M, Moleón M, Jordano P, Pires MM, Guimarães PR, Pape T, Nichols E, Hansen D, Olesen JM, Munk M, de Mattos JS, Schweiger AH, Owen-Smith N, Johnson CN, Marquis RJ, Svenning JC. Ecological and evolutionary legacy of megafauna extinctions. Biol Rev Camb Philos Soc 2017; 93:845-862. [PMID: 28990321 DOI: 10.1111/brv.12374] [Citation(s) in RCA: 102] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 08/26/2017] [Accepted: 09/01/2017] [Indexed: 12/30/2022]
Abstract
For hundreds of millions of years, large vertebrates (megafauna) have inhabited most of the ecosystems on our planet. During the late Quaternary, notably during the Late Pleistocene and the early Holocene, Earth experienced a rapid extinction of large, terrestrial vertebrates. While much attention has been paid to understanding the causes of this massive megafauna extinction, less attention has been given to understanding the impacts of loss of megafauna on other organisms with whom they interacted. In this review, we discuss how the loss of megafauna disrupted and reshaped ecological interactions, and explore the ecological consequences of the ongoing decline of large vertebrates. Numerous late Quaternary extinct species of predators, parasites, commensals and mutualistic partners were associated with megafauna and were probably lost due to their strict dependence upon them (co-extinctions). Moreover, many extant species have megafauna-adapted traits that provided evolutionary benefits under past megafauna-rich conditions, but are now of no or limited use (anachronisms). Morphological evolution and behavioural changes allowed some of these species partially to overcome the absence of megafauna. Although the extinction of megafauna led to a number of co-extinction events, several species that likely co-evolved with megafauna established new interactions with humans and their domestic animals. Species that were highly specialized in interactions with megafauna, such as large predators, specialized parasites, and large commensalists (e.g. scavengers, dung beetles), and could not adapt to new hosts or prey were more likely to die out. Partners that were less megafauna dependent persisted because of behavioural plasticity or by shifting their dependency to humans via domestication, facilitation or pathogen spill-over, or through interactions with domestic megafauna. We argue that the ongoing extinction of the extant megafauna in the Anthropocene will catalyse another wave of co-extinctions due to the enormous diversity of key ecological interactions and functional roles provided by the megafauna.
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Affiliation(s)
- Mauro Galetti
- Departamento de Ecologia, Instituto de Biociências, Universidade Estadual Paulista (UNESP), 13506-900, Rio Claro, SP Brazil.,Section for Ecoinformatics & Biodiversity, Department of Bioscience, Aarhus University, 8000 Aarhus C, Denmark
| | - Marcos Moleón
- Estación Biológica de Doñana, EBD-SCIC, Consejo Superior de Investigaciones Científicas, Sevilla, Spain.,Departamento de Zoología, Universidad de Granada, Granada, Spain
| | - Pedro Jordano
- Estación Biológica de Doñana, EBD-SCIC, Consejo Superior de Investigaciones Científicas, Sevilla, Spain
| | - Mathias M Pires
- Departamento de Ecologia, Universidade de São Paulo, São Paulo, SP Brazil
| | - Paulo R Guimarães
- Departamento de Ecologia, Universidade de São Paulo, São Paulo, SP Brazil
| | - Thomas Pape
- Natural History Museum of Denmark, University of Copenhagen, Copenhagen, Denmark
| | | | - Dennis Hansen
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, 8057 Zurich, Switzerland
| | - Jens M Olesen
- Section for Ecoinformatics & Biodiversity, Department of Bioscience, Aarhus University, 8000 Aarhus C, Denmark
| | - Michael Munk
- Section for Ecoinformatics & Biodiversity, Department of Bioscience, Aarhus University, 8000 Aarhus C, Denmark
| | - Jacqueline S de Mattos
- Departamento de Ecologia, Instituto de Biociências, Universidade Estadual Paulista (UNESP), 13506-900, Rio Claro, SP Brazil
| | - Andreas H Schweiger
- Section for Ecoinformatics & Biodiversity, Department of Bioscience, Aarhus University, 8000 Aarhus C, Denmark
| | - Norman Owen-Smith
- Centre for African Ecology, School of Animal Plant and Environmental Sciences, University of the Witwatersrand, Wits 2050, South Africa
| | - Christopher N Johnson
- School of Biological Sciences & Australian Research Council Centre of Excellence for Australian Biodiversity and Heritage, University of Tasmania, Hobart, Tasmania, Australia
| | - Robert J Marquis
- Department of Biology and the Whitney R. Harris World Ecology Center, University of Missouri-St. Louis, St. Louis, U.S.A
| | - Jens-Christian Svenning
- Section for Ecoinformatics & Biodiversity, Department of Bioscience, Aarhus University, 8000 Aarhus C, Denmark
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Gutiérrez-González CE, López-González CA. Jaguar interactions with pumas and prey at the northern edge of jaguars' range. PeerJ 2017; 5:e2886. [PMID: 28133569 PMCID: PMC5248577 DOI: 10.7717/peerj.2886] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 12/08/2016] [Indexed: 11/20/2022] Open
Abstract
We present the first study that evaluates jaguar-puma interactions in the arid lands of northern Mexico, where jaguars have their northernmost breeding population and both predators are persecuted for livestock depredation. We tested whether jaguars are the dominant species in this unique ecosystem, where: (1) pumas outnumber jaguars, (2) pumas are better adapted to arid environments, and (3) jaguars and pumas are of similar size. We analyzed four years of data with two approaches; a two species conditional occupancy model and an activity patterns analysis. We used camera location and prey presence as covariates for jaguar and puma detection and presence probabilities. We also explored overlap in activities of predators and prey. Where both species were detected, peccary presence was positively correlated with both jaguar and puma presence, whereas in areas where jaguars were detected but pumas were not, deer presence explained the probability of jaguar presence. We found that both predators were more likely to co-occur together than to be found independently, and so we rejected the hypothesis that jaguars were the dominant species in our study area. Predators were mainly nocturnal and their activity patterns overlapped by 60%. Jaguar, as compared with puma, overlapped more with deer and calves; puma overlapped with calves more than with other prey, suggesting a preference. We believe exploring predator relationships at different scales may help elucidate mechanisms that regulate their coexistence.
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Affiliation(s)
- Carmina E Gutiérrez-González
- Facultad de Ciencias Naturales, Universidad Autónoma de Querétaro, Querétaro, México.,Northern Jaguar Project, Tucson, AZ, USA
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de Thoisy B, Fayad I, Clément L, Barrioz S, Poirier E, Gond V. Predators, Prey and Habitat Structure: Can Key Conservation Areas and Early Signs of Population Collapse Be Detected in Neotropical Forests? PLoS One 2016; 11:e0165362. [PMID: 27828993 PMCID: PMC5102489 DOI: 10.1371/journal.pone.0165362] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2016] [Accepted: 10/11/2016] [Indexed: 11/19/2022] Open
Abstract
Tropical forests with a low human population and absence of large-scale deforestation provide unique opportunities to study successful conservation strategies, which should be based on adequate monitoring tools. This study explored the conservation status of a large predator, the jaguar, considered an indicator of the maintenance of how well ecological processes are maintained. We implemented an original integrative approach, exploring successive ecosystem status proxies, from habitats and responses to threats of predators and their prey, to canopy structure and forest biomass. Niche modeling allowed identification of more suitable habitats, significantly related to canopy height and forest biomass. Capture/recapture methods showed that jaguar density was higher in habitats identified as more suitable by the niche model. Surveys of ungulates, large rodents and birds also showed higher density where jaguars were more abundant. Although jaguar density does not allow early detection of overall vertebrate community collapse, a decrease in the abundance of large terrestrial birds was noted as good first evidence of disturbance. The most promising tool comes from easily acquired LiDAR data and radar images: a decrease in canopy roughness was closely associated with the disturbance of forests and associated decreasing vertebrate biomass. This mixed approach, focusing on an apex predator, ecological modeling and remote-sensing information, not only helps detect early population declines in large mammals, but is also useful to discuss the relevance of large predators as indicators and the efficiency of conservation measures. It can also be easily extrapolated and adapted in a timely manner, since important open-source data are increasingly available and relevant for large-scale and real-time monitoring of biodiversity.
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Affiliation(s)
| | | | | | | | | | - Valéry Gond
- CIRAD, Forests and Societies unit, Montpellier, France
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