Results 31 to 40 of about 1,181,906 (288)

Ecological and social pressures interfere with homeostatic sleep regulation in the wild

open access: yeseLife, 2022
Sleep is fundamental to the health and fitness of all animals. The physiological importance of sleep is underscored by the central role of homeostasis in determining sleep investment – following periods of sleep deprivation, individuals experience longer
J Carter Loftus   +3 more
doaj   +1 more source

Collective behaviors and networks [PDF]

open access: yesEPJ Data Science, 2014
The goal of this thematic series is to provide a discussion venue about recent advances in the study of networks and their applications to the study of collective behavior in socio-technical systems. The series includes contributions exploring the intersection between data-driven studies of complex networks and agent-based models of collective social ...
Ciampaglia Giovanni Luca   +2 more
openaire   +2 more sources

Predator–prey survival pressure is sufficient to evolve swarming behaviors

open access: yesNew Journal of Physics, 2023
The comprehension of how local interactions arise in global collective behavior is of utmost importance in both biological and physical research. Traditional agent-based models often rely on static rules that fail to capture the dynamic strategies of the
Jianan Li, Liang Li, Shiyu Zhao
doaj   +1 more source

On the Tongue-Like Bifurcation Structures of the Mean-Field Dynamics in a Network of Chaotic Elements

open access: yes, 1998
Collective behavior is studied in globally coupled maps. Several coherent motions exist, even in fully desynchronized state. To characterize the collective behavior, we introduce scaling transformation of parameter, and detect the tongue-like structure ...
Kaneko, Kunihiko, Shibata, Tatsuo
core   +1 more source

The presence of air sac nematodes in passerines and near-passerines in southern Germany

open access: yesInternational Journal for Parasitology: Parasites and Wildlife, 2023
Major climatic changes in conjunction with animal movement may be associated with the spread of parasites and their vectors into new populations, with potentially important consequences for population persistence.
Salamatu Abdu   +7 more
doaj   +1 more source

Collective behavior of heterogeneous neural networks

open access: yes, 2010
We investigate a network of integrate-and-fire neurons characterized by a distribution of spiking frequencies. Upon increasing the coupling strength, the model exhibits a transition from an asynchronous regime to a nontrivial collective behavior.
A. Politi   +5 more
core   +1 more source

Genetic Control of Collective Behavior in Zebrafish

open access: yesiScience, 2020
Summary: Many animals, including humans, have evolved to live and move in groups. In humans, disrupted social interactions are a fundamental feature of many psychiatric disorders.
Wenlong Tang   +15 more
doaj   +1 more source

Evaluating drivers of female dominance in the spotted hyena

open access: yesFrontiers in Ecology and Evolution, 2022
IntroductionDominance relationships in which females dominate males are rare among mammals. Mechanistic hypotheses explaining the occurrence of female dominance suggest that females dominate males because (1) they are intrinsically more aggressive or ...
S. Kevin McCormick   +14 more
doaj   +1 more source

Statistical Complexity and Nontrivial Collective Behavior in Electroencephalografic Signals

open access: yes, 2009
We calculate a measure of statistical complexity from the global dynamics of electroencephalographic (EEG) signals from healthy subjects and epileptic patients, and are able to stablish a criterion to characterize the collective behavior in both groups ...
Jasper H. H.   +6 more
core   +1 more source

Both prey and predator features predict the individual predation risk and survival of schooling prey

open access: yeseLife, 2022
Predation is one of the main evolutionary drivers of social grouping. While it is well appreciated that predation risk is likely not shared equally among individuals within groups, its detailed quantification has remained difficult due to the speed of ...
Jolle Wolter Jolles   +6 more
doaj   +1 more source

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