Results 161 to 170 of about 13,143 (213)

Drift Foraging by Allopatric and Sympatric Atlantic Salmon and Brown Trout Parr Under Rapid Flow Fluctuations

River Research and Applications, EarlyView.
ABSTRACT Hydropeaking may result in behavioral responses in riverine organisms that experience rapid flow fluctuations. In stream fish, the balance between energy spent on swimming and foraging vs. food intake affects fitness, a balance strongly influenced by flow conditions.
Louis Addo, Lise Meneboo, Mahboobeh Hajiesmaeili, John J. Piccolo, Johan Watz   +4 more
wiley   +1 more source

A Picky Predator and Its Prey: How Snow Conditions and Ptarmigan Abundance Impact Gyrfalcon Feeding Behaviour and Breeding Success. [PDF]

Ecol Evol
Slettenhaar AJ, Østnes JE, Moen BC, Kroglund RT, Nygård T, Nilsen EB.   +5 more
europepmc   +1 more source

A comparison of established and digital surface model (DSM)‐based methods to determine population estimates and densities for king penguin colonies, using fixed‐wing drone and satellite imagery

Remote Sensing in Ecology and Conservation, EarlyView.
We used fixed‐wing drones and Beyond Visual Line of Sight flying to create high‐resolution imagery and Digital Surface Models (DSMs) of six large king penguin colonies (colony population sizes ranging from 10,671 to 132,577 pairs) in South Georgia. We used a novel DSM‐based method to facilitate automated and semi‐automated counts of each colony to ...
J. Coleman, N. Fenney, P.N. Trathan, A. Fox, E. Fox, A. Bennison, L. Ireland, M.A. Collins, P.R. Hollyman   +8 more
wiley   +1 more source

Evaluating ecosystem caps on fishery yield in the context of climate stress and predation. [PDF]

Ecol Appl
Rovellini A, Punt AE, Dorn MW, Kaplan IC, Bryan MD, Adams G, Aydin K, Baker MR, Barnes CL, Ferriss BE, Fulton EA, Haltuch MA, Hermann AJ, Holsman KK, McGilliard CR, McHuron EA, Morzaria-Luna HN, Surma S.   +17 more
europepmc   +1 more source

Illuminating the Arctic: Unveiling seabird responses to artificial light during polar darkness through citizen science and remote sensing

Remote Sensing in Ecology and Conservation, EarlyView.
Artificial light at night (ALAN) has global impacts on animals, yet its effects in polar regions remain underexplored. In this study, we analyzed a decade of citizen science data on seabird occurrences in Longyearbyen, using remote sensing data to assess the impact of ALAN during the polar night.
Kaja Balazy, Dariusz Jakubas, Andrzej Kotarba, Katarzyna Wojczulanis‐Jakubas   +3 more
wiley   +1 more source

Kleptoparasitism and Coexistence: Resource Competition Between Indian Leopards and Striped Hyenas. [PDF]

Animals (Basel)
Yosef R, Kumbhojkar S.
europepmc   +1 more source

Control of Overfitting with Physics. [PDF]

Entropy (Basel)
Kozyrev SV, Lopatin IA, Pechen AN.
europepmc   +1 more source

Collective anti-predator escape manoeuvres through optimal attack and avoidance strategies. [PDF]

Commun Biol
Bartashevich P, Herbert-Read JE, Hansen MJ, Dhellemmes F, Domenici P, Krause J, Romanczuk P.   +6 more
europepmc   +1 more source

Identifying Recruitment Sources Across Trophic Levels in a Large River Food Web. [PDF]

Ecol Evol
Valentine SA, Bouska KL, Whitledge GW.
europepmc   +1 more source

Analysis of the stability of a predator-prey model including the memory effect, double Allee effect and Holling type-I functional response. [PDF]

PLoS One
K R, Kumar G R, Khan A, Abdeljawad T.
europepmc   +1 more source