An evaluation of the productivity of mischocyttarus drewseni in a semi-urban environment (Hymenoptera: Polistinae)
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Data
2007-04-23
Autores
Penna, Marcelo Antonio Harada [UNESP]
Gobbi, Nivar [UNESP]
Giacomini, Henrique Corrêa [UNESP]
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Resumo
The biology and productivity of Myschocytarus drewseni were studied in semi urban conditions at Rio Claro, S P - Brazil. We observed 51 nest foundations, of which 24 (47%) were destroyed or predated, 13 (25.5 %) were abandoned and 14 (27.5%) completed the cycle. The life-span of colonies ranged from 44-427 days with a mean of 216.7 ± 140.6 days, producing 8-390 cells with a mean of 125.7 ± 137.9 cells, and 2-303 adults with a mean of 89.4 ± 110.36 adults. We observed a maximum of 3 utilizations/cell. This showed that the species presents asynchronous foundation and abandoningoccurs throughout the year. Also, the chance of a colony utilizing the same cells two or three times for adult production is highly dependent on the colony size/age, and the relation between them is positive, meaning that there is a greater chance of cell re-utilization in larger/older colonies.
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Life span, Mischocytarus, Multiple cell use, Productivity, Semi-urbun. Environment, Hymenoptera, Mischocyttarus, Polistinae
Como citar
Sociobiology, v. 50, n. 1, p. 113-120, 2007.