Results 81 to 90 of about 143,183 (293)
A reassessment of the predation risk allocation hypothesis: a comment on Lima and Bednekoff [PDF]
, 2011 The predation risk allocation hypothesis was developed to provide testable predictions about the allocation of antipredator behavior between periods of high or low risk that alternate through time.
Ruxton, Graeme D. +5 more
core +1 more source
Coexisting ant species differ in ability to meet their intrinsic nutritional needs
Oikos, EarlyView.Coexisting species are often assumed to reduce competition by foraging for foods that differ in nutrient composition, but few studies test whether field nutritional differences correspond to intrinsic differences in macronutrient selectivity. We compared field estimates of worker trophic position (tissue isotopes: δ15N) and worker tissue stoichiometry (
Hannah L. Riskas +4 more
wiley +1 more source
Predicting population-level risk effects of predation from the responses of individuals [PDF]
, 2014 This work formed part of the EU‐funded BIOCET project (Bioaccumulation of persistent organic pollutants in small cetaceans in European waters: transport pathways and impact on reproduction, EVK3‐2000‐00027).
Pierce, G.J. +15 more
core +1 more source
Frontiers in Marine ScienceCannibalism is reported here for the first time in the hydrothermal vent crab Xenograpsus testudinatus, an endemic species inhabiting sulfur-rich shallow vent ecosystems.
Jishnu Panamoly Ayyappan +5 more
doaj +1 more source
Oikos, EarlyView.Understanding how physiological constraints scale up to realized niche differences remains a central challenge in functional ecology. Temperature strongly influences metabolic performance, activity, and habitat selection in ectotherms, yet few field studies quantify how thermal responses interact with diel and habitat structure to shape predator ...
Jason R. Rohr
wiley +1 more source
Mouse Killing Behaviour, Aggressiveness and the Influence of Sexual Hormones in Rats
Journal of Biological Research, 2003 “Mouse-killing behaviour” is the behaviour of an isolated adult rat towards an anesthetized mouse placed in its cage; some rats (natural killer) spontaneously kill the mouse, others do not show any kind of aggressiveness.This interspecific ...
M. La Guardia +5 more
doaj +1 more source
PLANTS, PEOPLE, PLANET, EarlyView.Understanding how cooperative interactions remain stable matters for biodiversity because many plants rely on specialist insects that can also impose reproductive costs. We studied the interaction between Sambucus sieboldiana and seed‐consuming Heterhelus beetles through detailed field observations and pollination experiments.
Suzu Kawashima +3 more
wiley +1 more source
Pest Management Science, Volume 81, Issue 4, Page 2237-2247, April 2025.The predatory effect of the honey‐buzzard affects the reproductive performance of Asian‐hornet colonies, decreasing the density of workers over distance and time. The foraging distances of the honey‐buzzard concentrates within the first 2000 m from nest, which supports the results observed.
Jorge Ángel Martín‐Ávila +3 more
wiley +1 more source
Data from: Intraspecific competition, not predation, drives lizard tail loss on islands
, 2016 Tail autotomy is mainly considered an antipredator mechanism. Theory suggests that predation pressure relaxes on islands, subsequently reducing autotomy rates.
Meiri, Shai +3 more
core +1 more source
Remote Sensing in Ecology and Conservation, EarlyView.Remote sensing can reveal population dynamics of Antarctic penguin colonies. In this study, we analyze emperor penguin (Aptenodytes forsteri) guano stains in remote sensing imagery and discover colony presence predating known records for 18 colonies across Antarctica.
Martynas Bielinis +3 more
wiley +1 more source