Results 91 to 100 of about 611,346 (375)

Optimal L\'{e}vy-flight foraging in a finite landscape

open access: yes, 2014
We present a simple model to study L\'{e}vy-flight foraging in a finite landscape with countable targets. In our approach, foraging is a step-based exploratory random search process with a power-law step-size distribution $P(l) \propto l^{-\mu}$. We find
Jurdak, Raja   +7 more
core   +1 more source

Inhibitory control, exploration behaviour and manipulated ecological context are associated with foraging flexibility in the great tit [PDF]

open access: hybrid, 2021
Jenny R. Coomes   +5 more
openalex   +1 more source

Color polymorphism in Anemone coronaria: Correlations with soil, climate, and flowering phenology

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Flower color polymorphism (FCP) is thought to be driven by multiple selection agents. Although widely associated with visual attraction of multiple pollinators, FCP is also often correlated with abiotic factors. We explored the links between abiotic conditions, flowering phenology, and FCP in the winter‐flowering geophyte Anemone ...
Tzlil Labin   +4 more
wiley   +1 more source

Connection of mobility and foraging - A cross-cultural analysis

open access: yesEtnoantropološki Problemi, 2007
The goal of this inquiry is to explore the existence and severity of the liaison in-between mobility and cattle breeding. The author has decided to test the hypothesis of a relation between mobility and cattle breading through quantitative analysis of a
Marko Porčić
doaj   +1 more source

Selection maintains floral color polymorphism in scarlet paintbrush, Castilleja coccinea, reflecting combined ecological factors

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Evolutionary theory predicts polymorphism should be rare; however, intraspecific variation in floral color is common and can be attributed to genetic drift, plasticity, or variable selection. Examining floral color polymorphism both within contact zones and across a species' range can reveal the mechanisms maintaining this variation ...
Emma Fetterly   +6 more
wiley   +1 more source

Optimal random search using limited spatial memory [PDF]

open access: yesRoyal Society Open Science, 2018
Lévy walks are known to be efficient movements because Lévy walkers search wide areas while restricting returns to previously visited sites. A self-avoiding walk (SAW) is a series of moves on a lattice that visit the same place only once.
Tomoko Sakiyama, Yukio-Pegio Gunji
doaj   +1 more source

Polygamy in the Marsh Harrier, Circus aeruginosus: Individual Variation in Hunting Performance and Number of Mates [PDF]

open access: yes, 1982
1. Theories postulating that sexual task differentiation may lead to polygamy such that the sex investing the least effort in raising the offspring, engages in simultaneous matings, contrast with polygyny in raptors where the male provides most of the ...
Altenburg, Wibe,   +3 more
core   +1 more source

Risk and Reward in Foraging Migrations of North Pacific Albacore Determined From Estimates of Energy Intake and Movement Costs [PDF]

open access: gold, 2022
Barbara Muhling   +7 more
openalex   +1 more source

Growth Standards for Children With Smith–Magenis Syndrome (SMS)

open access: yesAmerican Journal of Medical Genetics Part A, EarlyView.
ABSTRACT Smith–Magenis syndrome (SMS, OMIM 182290) is a complex syndromic diagnosis marked by neurobehavioral differences and distinct facial dysmorphisms, caused by haploinsufficiency of the retinoic acid‐1 (RAI1) gene either by a pathogenic sequence variant or deletion at chromosome 17p11.2 involving a portion or all of this gene.
Julie Hoover‐Fong   +10 more
wiley   +1 more source

Automatic Detection of Foraging Hens in a Cage-Free Environment with Computer Vision Technology

open access: yesPoultry
Foraging behavior in hens is an important indicator of animal welfare. It involves both the search for food and exploration of the environment, which provides necessary enrichment.
Samin Dahal   +4 more
doaj   +1 more source

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