Laying sequence,diploid males,and nest usurpation in the leafcutter bee,Megachile rotundata (Hymenoptera: Megachilidae) |
| |
| Authors: | D B McCorquodale R E Owen |
| |
| Institution: | (1) Department of Mathematics and Natural Sciences, University College of Cape Breton, Box 5300, B1P 6L2 Sydney, Nova Scotia, Canada;(2) Department of Chemical and Biological Sciences, Mount Royal College, AB T3E 6K6 Calgary;(3) Department of Biological Sciences, University of Calgary, T2N 1N4 Calgary AB, Canada |
| |
| Abstract: | Variations from the normal female-male sequence of eggs in nests of the leafcutter bee,Megachile rotundata, were examined. Three alternatives were considered: Out-of-sequence males (i) were diploids, (ii) were the result of supersedure of nests or intraspecific brood parasitism, or (iii) were the result of females occasionally laying a male-female sequence. Electrophoretic data provided definitive evidence of diploid males and of multiple females laying in 7 of 18 nests. In the others, the remaining explanation is that females occasionally lay male eggs before female eggs in a nest. |
| |
| Keywords: | Megachile rotundata diploid male nest usurpation nesting behavior laying sequence |
| 本文献已被 SpringerLink 等数据库收录！ |
|
