Behavioral Ecology and Sociobiology
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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......
Recognition of caste and mating status maintains monogyny in the ant Aphaenogaster senilis
Behavioral Ecology and Sociobiology - Tập 67 - Trang 1295-1305 - 2013
In ants dispersing through colony fission, queens mate near their natal nest and found a new society with the help of workers. This allows potential future queens to challenge the mother queen’s reproductive monopoly. Conflicts might be resolved if the mated queen signals her presence and the workers control the developmental fate of the diploid larvae (whether they develop to worker or queen). In......
The conflict between feeding and territorial defence in the great tit
Behavioral Ecology and Sociobiology - Tập 15 - Trang 103-108 - 1984
A field experiment investigated whether feeding and territorial defence competed for time in the activity budget of territorial male great tits during the spring. Feeding tables were placed on the territories of five males. Five other territorial males also fed at these tables, while ten additional males had no access to any feeding tables. A standardised ‘intrusion’ using playback of territorial ......
Polistes smithii vs. Polistes dominula: the contrasting endocrinology and epicuticular signaling of sympatric paper wasps in the field
Behavioral Ecology and Sociobiology - Tập 69 - Trang 2043-2058 - 2015
Paper wasps of the family Vespidae exhibit a wide range of social lifestyles, from facultative eusocial groups to highly ritualistic swarm-founding societies. Even so, adult caste flexibility is widespread throughout the eusocial tribes. Thus, a common endocrine mechanism for caste determination and maintenance in paper wasps is expected, with Polistes dominula serving as a model for the study of ......
Offspring sex ratio in relation to maternal age and social rank in mountain goats (Oreamnos americanus)
Behavioral Ecology and Sociobiology - Tập 49 - Trang 260-265 - 2000
In polygynous mammals, high-quality females may increase their fitness by producing a high proportion of sons. During a 9-year study of marked mountain goats (Oreamnos americanus), we assessed the relative effects of maternal age, social rank and reproductive status on offspring sex ratio. The sex ratio of kids in the population did not differ from unity (75 males, 85 females). The proportion of ......
A game theoretic approach to multimodal communication
Behavioral Ecology and Sociobiology - Tập 67 - Trang 1399-1415 - 2013
Over the last few decades the animal communication community has become increasingly aware that much communication occurs using multiple signals in multiple modalities. The majority of this work has been empirical, with less theoretical work on the advantages conferred by such communication. In the present paper, we ask: Why should animals communicate with multiple signals in multiple modalities? ......
Parental investment without kin recognition: simple conditional rules for parent–offspring behavior
Behavioral Ecology and Sociobiology - Tập 65 - Trang 1079-1091 - 2010
Species differ widely with regard to parental investment strategies and mechanisms underlying those strategies. The passing of benefits to likely genetic offspring can be mediated through a number of different computational and behavioral systems. We report results from an agent-based model in which offspring maintain proximity with parents and parents transmit benefits to offspring without the ca......
Comparative feeding ecology of felids in a neotropical rainforest
Behavioral Ecology and Sociobiology - Tập 20 - Trang 271-283 - 1987
Diet and habitat use of jaguar, puma, and ocelot, and populations of their mammalian prey, were studied in an undisturbed rainforest in southeastern Peru. Analysis of scats (feces) showed terrestrial mammals to be the chief prey of all three felids, but reptiles and birds were also numerically important in the diets of ocelot and jaguar. Prey diversity is high and the cats evidently take any readi......
Species-specific antipredatory behaviours: effects on prey choice in different habitats
Behavioral Ecology and Sociobiology - Tập 32 - Trang 1-9 - 1993
Prey species may use many different behaviours to avoid predation. In this study, the antipredator behaviours of juvenile roach (Rutilus rutilus) and juvenile perch (Perca fluviatilis) were studied in wading pools with three kinds of structural complexity: no structure, structure simulating vegetation and structure simulating bottom crevices. Predation experiments with piscivorous perch and habita......
Echolocation call design and limits on prey size: a case study using the aerial-hawking bat Nyctalus leisleri
Behavioral Ecology and Sociobiology - Tập 37 - Trang 321-328 - 1995
The echolocation calls used by Nyctalus leisleri during search phase in open air space are between 9 and 14 ms long, with the peak energy between 24 and 28 kHz. The pulses are shallowly frequency-modulated with or without an initial steep frequency-modulated component. The diet consists primarily of small flies (Diptera), including many chironomids (wingspan 9–12 mm) and yellow dung flies (Scatoph......
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