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Emergence of division of labour in halictine bees: contributions of social interactions and behavioural variance
Behavioral evidence for population structure in Lasioglossum (Dialictus) zephyrum female dispersion patterns
Within-aggregation nest distribution and behavioral interactions between pairs of female Lasioglossum zephyrum were investigated, and results show that females residing near one another behave as if they are more closely related than females residing at greater distances from one another.
Mutualistic Benefits Generate an Unequal Distribution of Risky Activities Among Unrelated Group Members
A communal hymenopteran species, Lasioglossum(Chilalictus)hemichalceum, is examined to determine why group members engaged in demonstrably risky activities (foraging) tolerate the selfish behavior (remaining in the nest) of unrelated nestmates.
Male dimorphism in Lasioglossum (Chilalictus) hemichalceum: the role of larval nutrition
- P. Kukuk
Life history data are used to infer the role of nutrition in male polymorphism in Lasioglossum (Chilalictus) hemichalceum, a communal sweat bee, and it is suggested that larval nutrition plays a causal role in male morphology as well.
Evidence for an antiaphrodisiac in the sweat bee Lasioglossum (Dialictus) zephyrum.
- P. Kukuk
- Biology, PsychologyScience
- 8 February 1985
Male Lasioglossum (Dialictus) zephyrum in the field are attracted to models impregnated with the odor of virgin females, and once a male has contacted a model, its attractiveness to other males is reduced, suggesting that the male may contribute an antiaphrodisiac cue so that other males avoid mated females.
Effects of familiarity and nestmate number on social interactions in two communal bees, Andrena scotica and Panurgus calcaratus (Hymenoptera, Andrenidae)
The existence of a communal behavioral syndrome comprising high levels of intranidal cooperation and low aggression, both directed indiscriminately at conspecifics is suggested.
Colony dynamics in a primitively eusocial halictine beeLasioglossum (Dialictus) zephyrum (Hymenoptera: Halictidae)
While small differences in age influence which female becomes a queen, her ability to control her workers is primarily influenced by her relative size, and the proportion of reproduction that is co-opted by the queen is negatively correlated with colony reproductivity (the number of males/day/female).
Reproductivity and relatedness in a communal halictine beeLasioglossum (Chilalictus) hemichalceum
A review of the relatedness data available for communal groups, both foundress associations and species that are communal throughout their colony cycle, indicates that communal sociality is often but not always associated with low intra colony relatedness.
DIPLOID MALES IN A PRIMITIVELY EUSOCIAL BEE, LASIOGLOSSUM (DIALICTUS) ZEPHYRUM (HYMENOPTERA: HALICTIDAE)
Diploid males were found in three out of four populations (nest aggregations) of the primitively eusocial, halictine bee Lasioglossum zephyrum for which samples of males were examined electrophoretically, suggesting a bottleneck event or loss of alleles due to small population size occurred in the Robinson population that involved a loss in the number of allele at the sex determining locus.
Trophallaxis in a communal halictine bee Lasioglossum (Chilalictus) erythrurum.
Food exchange by means of oral trophallaxis was confirmed for a communal halictine bee Lasioglossum (Chilalictus) erythrurum. These results demonstrate an independent evolution of trophallaxis in…