SEX-RATIOS AND LIFE-HISTORY PATTERNS OF A SOLITARY WASP, TRYPOXYLON-(TRYPARGILUM)-POLITUM (HYMENOPTERA, SPHECIDAE)

Werren and Charnov (1978) and Seger (1983) proposed a model to explain a fairly common pattern of alternating sex ratio biases between generations in partially bivoltine insects. When first-generation males overlap and mate with females of the second generation, then females should bias sex ratios i...

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Bibliographic Details
Main Authors: Brockmann, H, Grafen, A
Format: Journal article
Published: 1992