Results 41 to 50 of about 168,414 (382)

Species‐ and origin‐specific susceptibility to bird predation among juvenile salmonids

open access: yesEcosphere, 2023
Juvenile salmonids often experience high mortality rates during migration and bird predation is a common source of mortality. Research suggests that hatchery‐reared salmonids are more prone to predation than wild salmonids, and that Atlantic salmon ...
Torbjörn Säterberg   +6 more
doaj   +1 more source

A sufficient condition on successful invasion by the predator [PDF]

open access: yesarXiv, 2023
In this paper, we provide a sufficient condition on successful invasion by the predator. Specially, we obtain the persistence of traveling wave solutions of predator-prey system, in which the predator can survive without the predation of the prey. This proof heavily depends on comparison principle of scalar monostable equation, the rescaling method and
arxiv  

Optimising low-Reynolds-number predation via optimal control and reinforcement learning [PDF]

open access: yes, 2022
We seek the best stroke sequences of a finite-size swimming predator chasing a non-motile point or finite--size prey at low Reynolds number. We use optimal control to seek the globally-optimal solutions for the former and RL for general situations. The predator is represented by a squirmer model that can translate forward and laterally, rotate and ...
arxiv   +1 more source

De novo origins of multicellularity in response to predation

open access: yesScientific Reports, 2018
The transition from unicellular to multicellular life was one of a few major events in the history of life that created new opportunities for more complex biological systems to evolve.
M. Herron   +8 more
semanticscholar   +1 more source

Interactions between predation and resources shape zooplankton population dynamics. [PDF]

open access: yesPLoS ONE, 2011
Identifying the relative importance of predation and resources in population dynamics has a long tradition in ecology, while interactions between them have been studied less intensively.
Alice Nicolle   +4 more
doaj   +1 more source

Anthropogenic noise increases fish mortality by predation

open access: yesNature Communications, 2016
Noise-generating human activities affect hearing, communication and movement in terrestrial and aquatic animals, but direct evidence for impacts on survival is rare.
S. Simpson   +6 more
semanticscholar   +1 more source

Maternal predator‐exposure affects offspring size at birth but not telomere length in a live‐bearing fish

open access: yesEcology and Evolution, 2020
The perception of predation risk could affect prey phenotype both within and between generations (via parental effects). The response to predation risk could involve modifications in physiology, morphology, and behavior and can ultimately affect long ...
Stefano Monteforte   +4 more
doaj   +1 more source

Selective Predation of a Stalking Predator on Ungulate Prey

open access: yesPLOS ONE, 2016
Prey selection is a key factor shaping animal populations and evolutionary dynamics. An optimal forager should target prey that offers the highest benefits in terms of energy content at the lowest costs. Predators are therefore expected to select for prey of optimal size. Stalking predators do not pursue their prey long, which may lead to a more random
Benno Woelfing   +7 more
openaire   +7 more sources

Predator

open access: yesRadical Teacher, 2022
Poetry
openaire   +2 more sources

Bacterial predation: 75 years and counting!

open access: yesEnvironmental Microbiology, 2016
The first documented study on bacterial predation was carried out using myxobacteria three quarters of a century ago. Since then, many predatory strains, diverse hunting strategies, environmental consequences and potential applications have been reported
Juana Pérez   +3 more
semanticscholar   +1 more source

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