Results 71 to 80 of about 4,274,126 (325)

Distribuição Livre Ideal da formiga-leão (Insecta, Neuroptera)

open access: yesEntomology Beginners, 2021
As larvas de formiga-leão Myrmeleon brasiliensis são insetos que constroem armadilhas em solo seco e arenoso para a captura de suas presas. O objetivo deste trabalho foi observar como os instares larvais de M.
Vitor Gabriel de Oliveira Leite   +1 more
doaj   +1 more source

Foraging Behavior of Tetramorium Caespitum in an Urban Environment: the Effect of Food Quality on Foraging [PDF]

open access: yes, 2016
Animals\u27 foraging strategies are directly related to their fitness. Proposed models of optimal foraging assume that animals strategize in terms of maximizing benefits over the cost of acquiring resources. Ants are social insects that are comparable in
Crofton, Nicole A.   +2 more
core   +1 more source

A marker of biological ageing predicts adult risk preference in European starlings, Sturnus vulgaris [PDF]

open access: yes, 2018
Why are some individuals more prone to gamble than others? Animals often show preferences between 2 foraging options with the same mean reward but different degrees of variability in the reward, and such risk preferences vary between individuals ...
Andrews, Clare   +5 more
core   +3 more sources

Beyond depression? A review of the optimal foraging theory literature in zooarchaeology and archaeobotany.

open access: yes, 2017
The use of optimal foraging theory in archaeology has been criticized for focusing heavily on “negative” human-environmental interactions, particularly anthropogenic resource depression, in which prey populations are reduced by foragers’ own foraging ...
E. Jones, David A. Hurley
semanticscholar   +1 more source

Modern and Ancient Genomes Reveal Neolithic Paternal Expansions of Millet and Rice Farmers and Demic Diffusion from China into Mainland Southeast Asia

open access: yesAdvanced Science, EarlyView.
This study clarifies the genetic patterns of paternal lineages across East Asia and Mainland Southeast Asia. Han populations are relatively homogeneous, whereas southern ethnolinguistic minorities display regional structures. Shared Y‐chromosome lineages indicate Neolithic expansions and extensive north‐south gene flow, supporting demic diffusion ...
Yunhui Liu   +15 more
wiley   +1 more source

Optimal foraging strategies can be learned

open access: yesNew Journal of Physics
The foraging behavior of animals is a paradigm of target search in nature. Understanding which foraging strategies are optimal and how animals learn them are central challenges in modeling animal foraging.
Gorka Muñoz-Gil   +3 more
doaj   +1 more source

Predator-Prey Interactions between Nonnative Juvenile Largemouth Bass (Micropterus salmoides) and Local Candidate Prey Species in the Pearl River Delta: Predation Capacity, Preference and Growth Performance

open access: yesLife, 2022
An ontogenetic dietary shift is crucial for the survival and growth of piscivorous largemouth bass (LB). However, there is much to learn about the predator-prey interaction during the switching process.
Du Luo, Minghao Ye, Dingtian Yang
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

2023–2027 CAP First Pillar Reform and Livestock Sector: Production and Economic Impacts on Italian Specialized Dairy Cattle Farms

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT The present study uses an agroeconomic supply model to assess the impacts of 2023–2027 CAP on Italian specialized dairy cattle farms. The model considers the voluntary choice of Eco‐Scheme 1, specifically addressed to livestock farms, through the implementation of binary variables.
Davide Dell'Unto, Raffaele Cortignani
wiley   +1 more source

Horizontal-vertical movement relationships: Adélie penguins forage continuously throughout provisioning trips

open access: yesMovement Ecology, 2021
Background Diving marine predators forage in a three-dimensional environment, adjusting their horizontal and vertical movement behaviour in response to environmental conditions and the spatial distribution of prey.
Javed Riaz   +3 more
doaj   +1 more source

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