Results 11 to 20 of about 9,048 (239)

To hunt or to rest: prey depletion induces a novel starvation survival strategy in bacterial predators [PDF]

The ISME Journal, 2020
Abstract The small size of bacterial cells necessitates rapid adaption to sudden environmental changes. In Bdellovibrio bacteriovorus, an obligate predator of bacteria common in oligotrophic environments, the non-replicative, highly motile attack phase (AP) cell must invade a prey to ensure replication.
Rajesh Sathyamoorthy, Yuval Kushmaro, Or Rotem, Ofra Matan, Daniel E Kadouri, Amit Huppert, Edouard Jurkevitch   +6 more
openaire   +3 more sources

Long‐term data reveal fitness costs of anthropogenic prey depletion for a subordinate competitor, the African wild dog (Lycaon pictus) [PDF]

Ecology and Evolution
Within carnivore guilds, dominant competitors (e.g., lions, Panthera leo) are limited primarily by the density of prey, while subordinate competitors (e.g., African wild dogs, Lycaon pictus) have been limited by the density of dominant competitors ...
Johnathan Reyes de Merkle, Scott Creel, Matthew S. Becker, Ben Goodheart, Thandiwe Mweetwa, Henry Mwape, Egil Dröge, Twakundine Simpamba   +7 more
doaj   +2 more sources

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

Proceedings of the National Academy of Sciences
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
Scott Creel, James Redcliffe, Ben Goodheart, Johnathan Reyes de Merkle, Henry Mwape, Stephanie Matsushima, Chase Dart, Kachama Banda, Bridget Mayani, Johane Njobvu, Reuben Kabungo, Michelo Mungolo, Ruth Kabwe, Emmanuel Kaseketi, Will Donald, Adrian Kaluka, Clive Chifunte, Howard Maimbo, Luzy Plankenhorn, David Christianson, Matthew S. Becker, Rory P. Wilson   +21 more
openaire   +4 more sources

Predation preference of the crayfish Procambarus clarkii on schistosomiasis transmitting snails: influence of snail species, infection status, and size [PDF]

Tropical Medicine and Health
Background Schistosomiasis control relies largely on preventive chemotherapy; however, rapid reinfection persists in many endemic settings due to continued transmission by freshwater snail intermediate hosts.
Geoffrey Murai Maina, Nicolaus Mbugi, Protus Omondi, Wolfgang Richard Mukabana, David Onyango Odongo, Eric Agola Lelo   +5 more
doaj   +2 more sources

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

Proceedings of the National Academy of Sciences
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.
Claus Rueffler, Laurent Lehmann
openaire   +4 more sources

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

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

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

African Swine Fever threatens Southeast Asia's 11 endemic wild pig species

Conservation Letters, 2021
The spread of the most recent African Swine Fever (ASF) outbreak in Asia since late 2018 poses a significant threat to endemic pig species and socioeconomic security. Within domestic pigs and free‐living Eurasian wild boars (both Sus scrofa) in Asia, ASF
Matthew Scott Luskin, Erik Meijaard, Selly Surya, Sheherazade, Chris Walzer, Matthew Linkie   +5 more
doaj   +1 more source