Results 21 to 30 of about 143,183 (293)
Scientific Reports, 2021 Intraspecies violence, including lethal interactions, is a relatively common phenomenon in mammals. Contrarily, interspecies violence has mainly been investigated in the context of predation and received most research attention in carnivores.
Lara M. Southern +2 more
doaj +1 more source
Behavioural adjustment in response to increased predation risk : a study in three duck species [PDF]
, 2011 Predation directly triggers behavioural decisions designed to increase immediate survival. However, these behavioural modifications can have long term costs. There is therefore a trade-off between antipredator behaviours and other activities.
Zimmer, Cedric +14 more
core +2 more sources
Predator-prey Dynamics with Intraspecific Competition and an Allee Effect in the Predator Population
Letters in Biomathematics, 2017 The study of the Allee effect on the stability of equilibria of predator-prey systems is of recent interest to mathematicians, ecologists, and conservationists. Many theoretical models that include the Allee effect result in an unstable coexistence equilibrium. However, empirical evidence suggests that predator–prey systems exhibiting density-dependent
Yust, Anne E, Bodine, Erin N
openaire +4 more sources
Frontiers in Ecology and Evolution, 2021 Despite their significance for paleobiological interpretations, bite marks have been rarely reported in non-mammalian therapsids (NMT). Here we describe, for the first time, the occurrence of a tooth embedded in the snout of a gorgonopsian.
Julien Benoit +2 more
doaj +1 more source
Habitat selection and indirect interactions in fish ommunities [PDF]
, 2013 To increase the understanding of freshwater lake ecosystems, I have studied the habitat selection of perch (Perca fluviatilis L.), roach (Rutilus rutilus (L.)), and vendace (Coregonus albula (L.)).
Beier, Ulrika
core +1 more source
Context-dependent interactive effects of non-lethal predation on larvae impact adult longevity and body composition. [PDF]
PLoS ONE, 2018 Predation impacts development, behavior and morphology of prey species thereby shaping their abundances, distribution and community structure. Non-lethal threat of predation, specifically, can have a strong influence on prey lifehistory characteristics ...
Karthikeyan Chandrasegaran +3 more
doaj +1 more source
Boundary Value Problems, 2022 Abstract In this paper we consider a prey-predator model with prey refuge and intraspecific competition between predators using the Crowley-Martin functional response and investigate the dynamic characteristics of spatial and non-spatial prey-predator systems with each analytical and numerical approach.
Maruthai Selvaraj Surendar +3 more
openaire +3 more sources
Spatial and temporal patterns of carabid activity-density in cereals do not explain levels of predation on weed seeds [PDF]
, 2008 Seed predation is an important component of seed mortality of weeds in agro-ecosystems, but the agronomic use and management of this natural weed suppression is hampered by a lack of insight in the underlying ecological processes.
Vries, E., de +5 more
core +1 more source
Intraspecific predator interference promotes biodiversity in ecosystems
eLifeExplaining biodiversity is a fundamental issue in ecology. A long-standing puzzle lies in the paradox of the plankton: many species of plankton feeding on a limited variety of resources coexist, apparently flouting the competitive exclusion principle (CEP), which holds that the number of predator (consumer) species cannot exceed that of the resources ...
Shijie Zhang +4 more
openaire +5 more sources
Sociobiology, 2016 The aim of this study was to verify the disappearance of eggs and larvae from the nests of the Mischocyttarus (Monogynoecus) montei, especially in autumn and winter, and at the same time, to discuss about the cannibalism as the main reason for survival ...
André Sunao Nishiuchi Murakami +2 more
doaj +1 more source