Zobrazeno 1 - 8
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pro vyhledávání: '"Glennis E. Julian"'
Autor:
Sara Helms Cahan, Glennis E. Julian
Publikováno v:
Evolutionary Ecology. 24:359-374
The long-term persistence of hybridogenetic systems, in which one genetic lineage is dependent on another as a sperm host, is paradoxical because they require continual coexistence between ecological competitors. Several species of ants display a soc
Publikováno v:
Ecology, vol. 87, no. 9, pp. 2160-2170
Hybrid speciation occurs when combination of two interspecific genomes results in individuals that are of high fitness but reproductively incompatible with the parental species. Although hybrid speciation is a relatively common source of new species
Autor:
Joel D. Parker, Tanja Schwander, Steven W. Rissing, Sara Helms Cahan, Glennis E. Julian, Laurent Keller
Publikováno v:
Current Biology, vol. 14, no. 24, pp. 2277-2282
Caste differentiation and reproductive division of labor are the hallmarks of insect societies [1]. In ants and other social Hymenoptera, development of female larvae into queens or workers generally results from environmentally induced differences i
Autor:
Jennifer H. Fewell, Glennis E. Julian
Publikováno v:
Animal Behaviour. 68:1-8
The genetic diversity in social insect colonies that is generated by multiple mating or multiple queens has been hypothesized to promote worker task specialization and therefore facilitate division of labour. However, few studies have actually examin
Autor:
Glennis E. Julian, Wulfila Gronenberg
Publikováno v:
Brain, Behavior and Evolution. 60:152-164
The behavior of reproductive female ants distinctly changes during the transition from virgin to mature, egg-laying queen. A winged female ant flies only once during her lifetime when she engages in the nuptial flight. Once she is mated she sheds her
Autor:
Glennis E. Julian, Sara Helms Cahan
Publikováno v:
Behavioral Ecology. 10:585-591
The evolution of cooperative colony foundation (pleometrosis) in ants has been attributed to conversion of extra resources into increased competitive ability. Most cooperative founding species provide these additional resources from internal fat stor
Autor:
Sara Helms Cahan, Glennis E. Julian
Publikováno v:
Animal behaviour. 58(2)
We investigated undertaking behaviour in the desert leaf-cutter ant to determine whether colonies show undertaking specialization, how task specialization is regulated and the consequences of specialization on colony performance. Task specialization
Autor:
Glennis E. Julian, Michael D. Breed
Publikováno v:
Nature. 357:685-686
How do honey-bees integrate cues in nestmate recognition? Honey-bees are able to discriminate nestmates from non-nestmates using olfactory cues or contact chemoreception. Nestmates may differ from non-nestmates in either cues produced by the individu