Results 51 to 60 of about 9,423,866 (346)

A guide to sampling design for GPS‐based studies of animal societies

open access: yesMethods in Ecology and Evolution, 2023
GPS‐based tracking is widely used for studying wild social animals. Much like traditional observational methods, using GPS devices requires making a number of decisions about sampling that can affect the robustness of a study's conclusions.
Peng He   +5 more
doaj   +1 more source

Self-Administration of a Boar Priming Pheromone Stimulates Puberty in Gilts without Boar Exposure

open access: yesAnimals, 2023
Labor is in short supply in animal agriculture. One time-consuming task is estrus detection in gilts. Stimulation with a live boar causes the onset of puberty in young gilts. Typically, a live boar is used to stimulate and identify estrus in the gilts by
John J. McGlone   +3 more
doaj   +1 more source

ezTrack: An open-source video analysis pipeline for the investigation of animal behavior

open access: yesScientific Reports, 2019
Tracking animal behavior by video is one of the most common tasks in the life sciences. Although commercial software exists for executing this task, they often present enormous cost to the researcher and can entail purchasing hardware that is expensive ...
Zachary T Pennington   +6 more
semanticscholar   +1 more source

How do we approach intrinsic motivation computationally? : a commentary on: What is intrinsic motivation? A typology of computational approaches. by Pierre-Yves Oudeyer and Frederic Kaplan [PDF]

open access: yes, 2008
What is the energy function guiding behavior and learningµ Representationbased approaches like maximum entropy, generative models, sparse coding, or slowness principles can account for unsupervised learning of biologically observed structure in sensory ...
Weber, Cornelius
core   +3 more sources

Calcineurin in Animal Behavior

open access: yesMolecules and Cells, 2004
The conserved Ca2+/calmodulin-dependent phosphatase calcineurin has been shown to be involved in numerous and diverse functions both at the cellular and organism level. Recent genetic and pharmacological studies in animals including C. elegans, Drosophila, Aplysia, rat and mice have also implicated calcineurin in behavior, particularly in the ...
Jin Il, Lee, Joohong, Ahnn
openaire   +2 more sources

Population and species neighbor identity impact trait–trait relationships and plant performance

open access: yesPopulation Ecology, EarlyView.
We evaluated how populations and species identity influence plant performance and trait outcomes in mixtures, and assessed trait variation among populations of two forb species native to the western United States (Dieteria canescens and Heterotheca villosa) following three interaction treatments (single‐population monoculture, two‐population mixture ...
Alicia J. Foxx   +2 more
wiley   +1 more source

Effects of chronic browsing on life‐history traits of an irruptive large herbivore population

open access: yesPopulation Ecology, EarlyView.
This study aimed to determine the relationship between diet quality, body mass, and size (hind foot length), and female reproduction and sought to identify the mechanism by which high density under severe food limitations is maintained. Our results demonstrated that sika deer introduced to Nakanoshima Island have maintained high densities through high ...
Koichi Kaji   +9 more
wiley   +1 more source

Beach balls: Assessing frustration tolerance in young children using a computerized task

open access: yesActa Psychologica, 2022
Frustration tolerance is a skill related to emotional regulation processes and is important insofar as it affects people's social relationships and even health. Low levels of frustration tolerance in children have been associated with a greater number of
Annabel Jiménez-Soto   +4 more
doaj  

Pecking Behavior in Conventional Layer Hybrids and Dual-Purpose Hens Throughout the Laying Period

open access: yesFrontiers in Veterinary Science, 2021
To avoid the killing of surplus male layer chickens, dual-purpose hybrids are suggested as an alternative approach. These strains may offer additional advantages compared to conventional laying hens, for instance, a lower tendency to develop injurious ...
Lorena Rieke   +4 more
doaj   +1 more source

Combining transient dynamics and logistic‐asymptotic growth to study the recovery of two seabird populations after rat eradication

open access: yesPopulation Ecology, EarlyView.
This study examines the demographic dynamics of two seabird populations on Tromelin Island, 15 years after the eradication of brown rats. The results indicate that these populations are in good health and are expected to continue growing until breeding sites are saturated in about a century.
Merlène Saunier   +6 more
wiley   +1 more source

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