Results 21 to 30 of about 4,274,126 (325)

Prey‐driven behavioral habitat use in a low‐energy ambush predator

open access: yesEcology and Evolution, 2021
Food acquisition is an important modulator of animal behavior and habitat selection that can affect fitness. Optimal foraging theory predicts that predators should select habitat patches to maximize their foraging success and net energy gain, likely ...
Annalee M. Tutterow   +4 more
doaj   +1 more source

Biased Learning as a Simple Adaptive Foraging Mechanism

open access: yesFrontiers in Ecology and Evolution, 2022
Adaptive cognitive biases, such as “optimism,” may have evolved as heuristic rules for computationally efficient decision-making, or as error-management tools when error payoff is asymmetrical.
Tal Avgar, Oded Berger-Tal
doaj   +1 more source

Particle foraging strategies promote microbial diversity in marine environments

open access: yeseLife, 2022
Microbial foraging in patchy environments, where resources are fragmented into particles or pockets embedded in a large matrix, plays a key role in natural environments. In the oceans and freshwater systems, particle-associated bacteria can interact with
Ali Ebrahimi   +2 more
doaj   +1 more source

Leaving safety to visit a feeding site: is it optimal to hesitate while exposed? [PDF]

open access: yesRoyal Society Open Science, 2017
Animals living in complex environments experience differing risks of predation depending upon their location within the landscape. An animal could reduce the risk it experiences by remaining in a refuge site, but it may need to emerge from its refuge and
Sean A. Rands
doaj   +1 more source

Inversion of pheromone preference optimizes foraging in C. elegans

open access: yeseLife, 2021
Foraging animals have to locate food sources that are usually patchily distributed and subject to competition. Deciding when to leave a food patch is challenging and requires the animal to integrate information about food availability with cues signaling
Martina Dal Bello   +3 more
doaj   +1 more source

Optimally frugal foraging

open access: yesPhysical Review E, 2018
We introduce the \emph{frugal foraging} model in which a forager performs a discrete-time random walk on a lattice, where each site initially contains $\mathcal{S}$ food units. The forager metabolizes one unit of food at each step and starves to death when it last ate $\mathcal{S}$ steps in the past. Whenever the forager decides to eat, it consumes all
Benichou, Olivier   +5 more
openaire   +4 more sources

Optimal Foraging By Bacteriophages Through Host Avoidance [PDF]

open access: yes, 2008
Optimal foraging theory explains diet restriction as an adaptation to best utilize an array of foods differing in quality, the poorest items not worth the lost opportunity of finding better ones.
Bull, James J.   +2 more
core   +1 more source

Eating smart: Free-ranging dogs follow an optimal foraging strategy while scavenging in groups

open access: yesFrontiers in Ecology and Evolution, 2023
Foraging and acquiring of food is a delicate balance between managing the costs (both energy and social) and individual preferences. Previous research on solitarily foraging free-ranging dogs showed that they prioritise the nutritionally highest valued ...
Rohan Sarkar   +18 more
doaj   +1 more source

Interactions among Shade, Caching Behavior, and Predation Risk May Drive Seed Trait Evolution in Scatter-Hoarded Plants

open access: yesDiversity, 2020
Although dispersal is critical to plant life history, the relationships between seed traits and dispersal success in animal-dispersed plants remain unclear due to complex interactions among the effects of seed traits, habitat structure, and disperser ...
Nathanael I. Lichti   +2 more
doaj   +1 more source

New Caledonian crows keep ‘valuable’ hooked tools safer than basic non-hooked tools

open access: yeseLife, 2021
The temporary storage and re-use of tools can significantly enhance foraging efficiency. New Caledonian crows in one of our study populations use two types of stick tools – hooked and non-hooked – which differ in raw material, manufacture costs, and ...
Barbara C Klump   +2 more
doaj   +1 more source

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