نتایج جستجو برای: carnivore

تعداد نتایج: 3068  

2016
Vincenzo Penteriani María del Mar Delgado Francesco Pinchera Javier Naves Alberto Fernández-Gil Ilpo Kojola Sauli Härkönen Harri Norberg Jens Frank José María Fedriani Veronica Sahlén Ole-Gunnar Støen Jon E. Swenson Petter Wabakken Mario Pellegrini Stephen Herrero José Vicente López-Bao

The media and scientific literature are increasingly reporting an escalation of large carnivore attacks on humans in North America and Europe. Although rare compared to human fatalities by other wildlife, the media often overplay large carnivore attacks on humans, causing increased fear and negative attitudes towards coexisting with and conserving these species. Although large carnivore populat...

Journal: :Biology letters 2009
F Dalerum E Z Cameron K Kunkel M J Somers

Large carnivores are important ecosystem components but are extinction prone due to small populations, slow growth rates and large area requirements. Consequently, there has been a surge of carnivore conservation efforts. Such efforts typically target local populations, with limited attention to the effects on the ecosystem function of predator guilds. Also, there is no framework for prioritizi...

2016
Enrico Di Minin Rob Slotow Luke T. B. Hunter Federico Montesino Pouzols Tuuli Toivonen Peter H. Verburg Nigel Leader-Williams Lisanne Petracca Atte Moilanen

Mammalian carnivores have suffered the biggest range contraction among all biodiversity and are particularly vulnerable to habitat loss and fragmentation. Therefore, we identified priority areas for the conservation of mammalian carnivores, while accounting for species-specific requirements for connectivity and expected agricultural and urban expansion. While prioritizing for carnivores only, w...

Journal: :Dong wu xue yan jiu = Zoological research 2013
Ling-Ling Hu Peng Shi

Bitter taste reception is presumably associated with dietary selection, preventing animals from ingesting potentially harmful compounds. Accordingly, carnivores, who encounter these toxic substances less often, should have fewer genes associated with bitter taste reception compared with herbivores and omnivores. To investigate the genetic basis of bitter taste reception, we confirmed bitter tas...

2017
Justin P Suraci Michael Clinchy Liana Y Zanette

The presence of large carnivores can affect lower trophic levels by suppressing mesocarnivores and reducing their impacts on prey. The mesopredator release hypothesis therefore predicts prey abundance will be higher where large carnivores are present, but this prediction assumes limited dietary overlap between large and mesocarnivores. Where dietary overlap is high, e.g., among omnivorous carni...

2017
Karina Vanesa Chichkoyan Borja Figueirido Margarita Belinchón José Luis Lanata Anne-Marie Moigne Bienvenido Martínez-Navarro

Pleistocene South American megafauna has traditionally attracted the interest of scientists and the popular media alike. However, ecological interactions between the species that inhabited these ecosystems, such as predator-prey relationships or interspecific competition, are poorly known. To this regard, carnivore marks imprinted on the fossil bones of megamammal remains are very useful for de...

2014
Leandro Abade David W. Macdonald Amy J. Dickman

Tanzania's Ruaha landscape is an international priority area for large carnivores, supporting over 10% of the world's lions and important populations of leopards and spotted hyaenas. However, lack of ecological data on large carnivore distribution and habitat use hinders the development of effective carnivore conservation strategies in this critical landscape. Therefore, the study aimed to (i) ...

Journal: :Evolution; international journal of organic evolution 2000
D W Pfennig P J Murphy

Biologists have long known that closely related species are often phenotypically different where they occur together, but are indistinguishable where they occur alone. The causes of such character displacement are controversial, however. We used polyphenic spadefoot toad tadpoles (Spea bombifrons and S. multiplicata) to test the hypothesis that character displacement evolves to minimize competi...

Journal: :Journal of human evolution 2004
Charles P Egeland Travis Rayne Pickering Manuel Domínguez-Rodrigo C K Brain

Determining the extent to which hominid- and carnivore-derived components of fossil bone palimpsests formed independently of each other can provide valuable information to paleoanthropologists interested in reconstructing the foraging adaptations of hominids. Because stone tool cutmarks, hammerstone percussion marks, and carnivore tooth marks are usually only imparted on bone during nutrient ex...

2016
Jennifer R. B. Miller Yadvendradev V. Jhala Oswald J. Schmitz

Human-carnivore conflict is challenging to quantify because it is shaped by both the realities and people's perceptions of carnivore threats. Whether perceptions align with realities can have implications for conflict mitigation: misalignments can lead to heightened and indiscriminant persecution of carnivores whereas alignments can offer deeper insights into human-carnivore interactions. We ap...

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