Behavioral Ecology and Sociobiology
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Prey availability influences the effect of boldness on reproductive success in a mammalian predator
Behavioral Ecology and Sociobiology - Tập 77 - Trang 1-11 - 2023
Boldness is an important trait in wild populations, and among-individual differences can link to individual fitness. The strength and direction of relationships between behavioral and life-history traits may however vary according to environmental conditions, where fluctuating selection acting on behavioral traits contributes to the maintenance of personality differences. We explored sources of va......
Differential parental care behaviors of arboreal and terrestrial microhylid frogs from Papua New Guinea
Behavioral Ecology and Sociobiology - Tập 55 - Trang 402-409 - 2003
I studied the ecology of parental care behaviors displayed by two closely related sympatric species of microhylid frogs in Papua New Guinea that occupy different microhabitats. Adult removal experiments on the terrestrial frog Hylophorbus rufescens and the undescribed arboreal frog Oreophryne sp. “A” demonstrate a significant positive effect of parental attendance on offspring survivorship and dif......
Disentangling the effects of group size and density on shoaling decisions of three-spined sticklebacks (Gasterosteus aculeatus)
Behavioral Ecology and Sociobiology - Tập 63 - Trang 1691-1691 - 2009
Males and females evolve riskier traits in populations with eavesdropping parasitoids
Behavioral Ecology and Sociobiology - Tập 72 - Trang 1-11 - 2018
Predation and/or parasitism often limits the evolution of conspicuous male traits and female preferences because conspicuous traits can attract predators or parasites and it is costly for females to associate with males that attract predators or parasites. As a result, males and females in high-risk populations are expected to evolve safer mating behaviors compared to individuals from low-risk pop......
Socially induced delayed primiparity in brown bears Ursus arctos
Behavioral Ecology and Sociobiology - Tập 61 - Trang 1-8 - 2006
Reproductive suppression through behavioral or physiological means is common in group-living and cooperative breeding mammals, but to our knowledge it has not been shown in wild large carnivores other than those with a clear form of social organization. Brown bear (Ursus arctos) females form matrilinear assemblages with related females using a common and largely exclusive area. Behavioral reproduc......
Resource abundance and sex allocation by queen and workers in the harvester ant, Messor pergandei
Behavioral Ecology and Sociobiology - Tập 51 - Trang 548-556 - 2002
The degree to which queens and workers control how limiting resources are split between reproductive males and females is central to the study of sex allocation in the eusocial Hymenoptera. We investigated the effect of resource availability on sex allocation decisions by both queens and workers in the ant Messor pergandei. We conducted the following field manipulations of resource availability: ......
How colony growth affects forager intrusion between neighboring harvester ant colonies
Behavioral Ecology and Sociobiology - Tập 31 - Trang 417-427 - 1992
Colonies of the harvester ant, Pogonomyrmex barbatus, adjust the direction and length of foraging trails in response to the foraging behavior of their conspecific neighbors. In the absence of any interaction with its neighbor, a mature colony expands its foraging range at a rate of 0.85 ± 0.15 m per day. Exclusion experiments show that if a colony is prevented from using its foraging trails, the n......
Measurement of nest cavity volume by the honey bee (Apis mellifera)
Behavioral Ecology and Sociobiology - Tập 2 - Trang 201-227 - 1977
No reproductive character displacement in male advertisement signals of Hyla japonica in relation to the sympatric H. suweonensis
Behavioral Ecology and Sociobiology - Tập 67 - Trang 1345-1355 - 2013
Reproductive interaction between closely related taxa may leave a distinctive signature in which populations of interacting taxa are more dissimilar in sympatry than in allopatry. An ideal condition for such a pattern of reproductive character displacement (RCD) may occur when a population has limited gene flow and experiences strong selection pressure, exerted by an interacting taxon in areas of ......
What is the value of a yellow patch? Assessing the signalling role of yellow colouration in the European serin
Behavioral Ecology and Sociobiology - Tập 69 Số 3 - Trang 481-490 - 2015
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