Lasioglossum (Dialictus) tenax (Sandhouse) (Hymenoptera: Halictidae) as a solitary sweat bee |
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Authors: | L Packer |
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Institution: | (1) Department of Biology, Faculty of Pure and Applied Science and Faculty of Enviromental Studies, York University, 4700 Keele St., M3J 1P3 N. York, ONT. |
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Abstract: | Summary Nine nests ofLasioglossum (Dialictus) tenax were excavated near Calgary, Alberta, Canada over a time period encompassing the entire brood production period in 1988. Each nest contained a maximum of one active adult female, nest productivity peaked in mid July, protandry was noted and no significant size difference between foundresses and the earlier emerging females was detected. These data suggest that this species is solitary. These results are compared with data for the sympatrically nesting eusocial speciesL. (D.) laevissimum. |
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Keywords: | Lasioglossum Dialictus sweat bee solitary behaviour social evolution |
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