The Diverse Mating Systems of Hilltopping Insects

Mating Strategies of Tropical Insects

Isolation by Distance under Diverse Systems of Mating.

HE effects of restricted dispersion on the genetic properties of a continuous T population have been treated mathematically in a previous paper (WRIGHT 1943a). The conclusions have been applied to the interpretation of observed local variability in a population of a plant, Linanthus Parryi (WRIGHT 1943b) and in one of an animal, Drosophila pseudoobscura (DOBZHANSKY and WRIGHT 1943). The mathema...

Males of social insects can prevent queens from multiple mating.

During copulation, males of Bombus terrestris fill the queen's sexual tract with a mating plug after transferring their sperm. The sticky secretion is produced by the male's accessory glands and disappears within a couple of days. Experiments now show that the primary function of the plug is to reduce the subsequent mating probability of the queen. The plug is not efficient in preventing sperm ...

A rigorous comparison of sexual selection indexes via simulations of diverse mating systems.

Sexual selection is a cornerstone of evolutionary theory, but measuring it has proved surprisingly difficult and controversial. Various proxy measures--e.g., the Bateman gradient and the opportunity for sexual selection--are widely used in empirical studies. However, we do not know how reliably these measures predict the strength of sexual selection across natural systems, and most perform poor...

Systems of Mating

TABLE OF CONTENTS INTRODUCTION.. ....... ......................................................... 167 Systems of breeding.. ................................ ,............................ 167 Parental and fraternal correlations.. ............................................... 169 Homozygosis ..................................................................... 171 The percentage of homozygosis...