Title

Alternation of sex ratio in a partially bivoltine bee, Megachile rotundata (Hymenoptera: Megachilidae)

Document Type

Article

Journal/Book Title/Conference

Annals of the Entomological Society of America

Volume

81

Publication Date

1988

First Page

467

Last Page

476

Abstract

Parental investment and sex ratio theory. Spring-emergent adults produce two types of offspring: those that develop directly to adult stage by mid-summer, and those that diapause to the following spring. Sex ratio of summer-emergent progeny biased toward females (because some spring-emergent males should still be around, although they found this to be highly unlikely), sex ratio of diapausing progeny biased toward males (regardless of whether they came from spring or summer generation). Importantly, diapausing progeny are 50% larger than summer-emergent brood

Subject Area

Natural history

Taxonomic Grouping

Leaf-Cutting bees

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