Results 11 to 20 of about 49,315 (282)

Prey depletion, interspecific competition, and the energetics of hunting in endangered African wild dogs, <i>Lycaon pictus</i>. [PDF]

Proc Natl Acad Sci U S A
Large herbivores are in decline in much of the world, including sub-Saharan Africa, and true apex carnivores like the lion ( Panthera leo ) decline in parallel with their prey. As a consequence, competitively subordinate carnivores like the African wild dog ( Lycaon pictus ) are ...
Creel S, Redcliffe J, Goodheart B, Reyes de Merkle J, Mwape H, Matsushima S, Dart C, Banda K, Mayani B, Njobvu J, Kabungo R, Mungolo M, Kabwe R, Kaseketi E, Donald W, Kaluka A, Chifunte C, Maimbo H, Plankenhorn L, Christianson D, Becker MS, Wilson RP.   +21 more
europepmc   +5 more sources

Central place foragers, prey depletion halos, and how behavioral niche partitioning promotes consumer coexistence. [PDF]

Proc Natl Acad Sci U S A
Many seabirds congregate in large colonies for breeding, a time when they are central place foragers. An influential idea in seabird ecology posits that competition during breeding results in an area of reduced prey availability around colonies, a phenomenon known as Ashmole’s halo, and that this limits colony size.
Rueffler C, Lehmann L.
europepmc   +4 more sources

The evidence for and urgency of threats to African wild dogs from prey depletion and climate change

Biological Conservation, 2023
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Scott Creel, Matthew S Becker, Johnathan Reyes de Merkle   +2 more
exaly   +3 more sources

Inter- and intra-annual differences in foraging ecology of the chick-rearing Brünnich’s guillemots (Uria lomvia) breeding in the High Arctic [PDF]

Royal Society Open Science
The foraging ecology of seabirds depends on both external and internal factors. Seabirds can modify their feeding strategy depending on current food availability to maintain optimal energy levels provisioned to the offspring. Here, we investigated inter-
Karolina Cieślińska, Lech Marek Iliszko, Michał Goc, Lech Stempniewicz, Dariusz Jakubas   +4 more
doaj   +2 more sources

Changes in African lion demography and population growth with increased protection in a large, prey‐depleted ecosystem

Conservation Science and Practice
Large carnivores such as the lion are declining across Africa, in part because their large herbivore prey is declining. There is consensus that increased protection from prey depletion will be necessary to reverse the decline of lion populations, but few
Scott Creel, Matthew S. Becker, Ben Goodheart, Anna Kusler, Kachama Banda, Kambwiri Banda, Milan Vinks, Catherine Sun, Chase Dart, Stephi Matsushima, Ruth Kabwe, Will Donald, Luka Zyambo, Peter Indala, Adrian Kaluka, Clive Chifunte, Craig Reid   +16 more
doaj   +2 more sources

Crowding effects and depletion mechanisms for population regulation in prey-predator intraspecific competition model [PDF]

Computational Ecology and Software, 2019
The current investigation centres on the consequences of intra-specific rivalry involving predators in the predator-prey equation. A careful account of the investigation is offered mathematically of the model to offer insights into important outcomes ...
Kumar G. Ranjith, Das Kalyan, K. Lakshminarayan, et al.   +2 more
doaj   +1 more source

Incorporating nonlinearity with generalized functional responses to simulate multiple predator effects [PDF]

PeerJ, 2022
Predicting the combined effects of predators on shared prey has long been a focus of community ecology, yet quantitative predictions often fail. Failure to account for nonlinearity is one reason for this.
Michael W. McCoy, Elizabeth Hamman, Molly Albecker, Jeremy Wojdak, James R. Vonesh, Benjamin M. Bolker   +5 more
doaj   +2 more sources

Individual variation within parasite communities of endangered African lions [PDF]

Royal Society Open Science
Prey depletion and human–wildlife conflict threaten the critically endangered West African populations of lion (Panthera leo leo), which occupy less than 1.1% of their historic range in West Africa.
Nyeema C. Harris, Jane Hallam
doaj   +2 more sources

Spatial and Temporal Habitat Use by the Main Prey Species of Tigers in Two Protected Areas of Thailand’s Southern Western Forest Complex

Environment and Natural Resources Journal, 2022
Tigers (Panthera tigris) have disappeared from over 90% of their historical range, and extant populations face habitat loss, direct poaching, and prey depletion in otherwise suitable habitats.
Sasi Suksavate, Yutthapong Dumsrisuk, Paitoon Indarabut, Alexander Godfrey, Sutasinee Saosoong, Abishek Harihar, Imran Samad, Ronglarp Sukmasuang, Prateep Duengkae   +8 more
doaj   +1 more source

A healthy but depleted herd: Predators decrease prey disease and density

Ecology, 2023
AbstractThe healthy herds hypothesis proposes that predators can reduce parasite prevalence and thereby increase the density of their prey. However, evidence for such predator‐driven reductions in the prevalence of prey remains mixed. Furthermore, even less evidence supports increases in prey density during epidemics.
Laura K. Lopez, Michael H. Cortez, Turner S. DeBlieux, Ilona A. Menel, Bruce O'Brien, Carla E. Cáceres, Spencer R. Hall, Meghan A. Duffy   +7 more
openaire   +3 more sources