Results 21 to 30 of about 9,048 (239)

Density dependence can obscure nonlethal effects of disturbance on life history of medium-sized cetaceans.

PLoS ONE, 2021
Nonlethal disturbance of animals can cause behavioral and physiological changes that affect individual health status and vital rates, with potential consequences at the population level.
Vincent Hin, John Harwood, André M de Roos   +2 more
doaj   +1 more source

African wild dog movements show contrasting responses to long and short term risk of encountering lions: analysis using dynamic Brownian bridge movement models

Movement Ecology, 2022
Background Prey depletion is a threat to the world’s large carnivores, and is likely to affect subordinate competitors within the large carnivore guild disproportionately.
Ben Goodheart, Scott Creel, Milan A. Vinks, Kambwiri Banda, Johnathan Reyes de Merkle, Anna Kusler, Chase Dart, Kachama Banda, Matthew S. Becker, Peter Indala, Chuma Simukonda, Adrian Kaluka   +11 more
doaj   +1 more source

Density dependence, prey accessibility and prey depletion by fisheries drive Peruvian seabird population dynamics [PDF]

Ecography, 2017
In marine ecosystems top predator populations are shaped by environmental factors affecting their prey abundance. Coupling top predators’ population studies with independent records of prey abundance suggests that prey fluctuations affect fecundity parameters and abundance of their predators.
Barbraud, Christophe, Bertrand, Arnaud, Bouchon, Marilu, Chaigneau, Alexis, Delord, Karine, Demarcq, Hervé, Gimenez, Olivier, Torero, Mariano Gutiérrez, Gutiérrez, Dimitri, Oliveros-Ramos, Ricardo, Passuni, Giannina, Tremblay, Yann, Bertrand, Sophie   +12 more
openaire   +5 more sources

Feeding ecology of the endangered Asiatic wild dogs (Cuon alpinus) across tropical forests of the Central Indian Landscape

Scientific Reports, 2022
Studies on resource utilisation by carnivores are essential as they aid in assessing their role in a community, by unravelling predator–prey relationships.
Pallavi Ghaskadbi, Neetu Bathla, Aishwarya Bhandari, Shrushti Modi, Parag Nigam, Bilal Habib   +5 more
doaj   +1 more source

Food limitation of seabirds in the Benguela ecosystem and management of their prey base

Namibian Journal of Environment, 2022
Four of seven seabirds that are endemic to the Benguela ecosystem (African Penguin Spheniscus demersus, Cape Gannet Morus capensis, Cape Cormorant Phalacrocorax capensis, Bank Cormorant P.
RJM Crawford, WJ Sydeman, DB Tom, JA Thayer, RB Sherley, LJ Shannon, AM McInnes, AB Makhado, C Hagen, RW Furness, T Carpenter-Kling, C Saraux   +11 more
doaj   +1 more source

Where will the dhole survive in 2030? Predicted strongholds in mainland Southeast Asia

Conservation Science and Practice, 2022
Dhole (Cuon alpinus) is threatened with extinction across its range due to habitat loss and prey depletion. Despite this, no previous study has investigated the distribution and threat of the species at a regional scale.
Jiratchaya Tananantayot, Cain Agger, Eric Ash, Saw Soe Aung, Megan C. Baker‐Whatton, Francesco Bisi, Gopalasamy Reuben Clements, Giacomo Cremonesi, Rachel Crouthers, Jackson L. Frechette, George A. Gale, Alexander Godfrey, Thomas N. E. Gray, Evan Greenspan, Olly Griffin, Mark Grindley, Abdul Kadir Bin Abu Hashim, Kate E. Jenks, Saw Say K'lu, Wai Yee Lam, Antony J. Lynam, Gregory Edward McCann, Shariff Wan Mohamad, Wyatt Joseph Petersen, Charina Pria Sivayogam, Darmaraj Mark Rayan, Alex Michael Riggio, Sutasinee Saosoong, Tommaso Savini, Naret Seuaturien, Nay Myo Shwe, Kittiwara Siripattaranukul, Robert Steinmetz, Sasi Suksavate, Niti Sukumal, Naruemon Tantipisanuh, Supagit Vinitpornsawan, Dusit Ngoprasert   +37 more
doaj   +1 more source

Metabolic Reliance on Photosynthesis Depends on Both Irradiance and Prey Availability in the Mixotrophic Ciliate, Strombidium cf. basimorphum

Frontiers in Microbiology, 2021
Many species of the ciliate genus Strombidium can acquire functional chloroplasts from a wide range of algal prey and are thus classified as generalist non-constitutive mixotrophs.
Erin Ann Hughes, Maira Maselli, Helle Sørensen, Per Juel Hansen   +3 more
doaj   +1 more source

Night shift: expansion of temporal niche use following reductions in predator density. [PDF]

PLoS ONE, 2012
Predation shapes many fundamental aspects of ecology. Uncertainty remains, however, about whether predators can influence patterns of temporal niche construction at ecologically relevant timescales. Partitioning of time is an important mechanism by which
Douglas J McCauley, Eva Hoffmann, Hillary S Young, Fiorenza Micheli   +3 more
doaj   +1 more source

Native Prey and Invasive Predator Patterns of Foraging Activity: The Case of the Yellow-Legged Hornet Predation at European Honeybee Hives. [PDF]

PLoS ONE, 2013
Contrary to native predators, which have co-evolved with their prey, alien predators often benefit from native prey naïveté. Vespa velutina, a honeybee predator originating from Eastern China, was introduced into France just before 2004.
Karine Monceau, Mariangela Arca, Lisa Leprêtre, Florence Mougel, Olivier Bonnard, Jean-François Silvain, Nevile Maher, Gérard Arnold, Denis Thiéry   +8 more
doaj   +1 more source

Ashmole's halo: direct evidence for prey depletion by a seabird

Marine Ecology Progress Series, 1987
Fish population densities were measured at various instances from 2 large colonies of double-crested cormorants Phalacrocorax auritus to test the hypothesis that seabirds deplete prey close to their colonies. Fish densities were significantly lower in bays used by cormorants for feeding than in those outside their foraging range.
Montevecchi, William A., Birt, V. L., Birt, T. P., Goulet, D., Cairns, D. K.   +4 more
openaire   +1 more source