Dispersal, Reproductive Strategies, and the Maintenance of Genetic Variability in Mosquitofish (Gambusia affinis)

  • Robbins L
  • Hartman G
  • Smith M
N/ACitations
Citations of this article
37Readers
Mendeley users who have this article in their library.
Get full text

Abstract

Sperm storage and multiple insemination were documented in Gambusia affinis from a natural population and by experimental matings using genetic markers. There was unequal paternal contribution from new and recent matings although sperm stored from previous matings continued to be represented in subsequent broods. Analysis of demographic characteristics of mosquitofish residing in and dispersing from an area of high density showed that 76% of the dispersing individuals were adult females, and 46% of these were in the later stages of reproduction. The high levels of genetic variation found in this species would not be predicted from the population characteristics but can be explained by dispersal, sperm retntion, and multiple insemination.

Cite

CITATION STYLE

APA

Robbins, L. W., Hartman, G. D., & Smith, M. H. (1987). Dispersal, Reproductive Strategies, and the Maintenance of Genetic Variability in Mosquitofish (Gambusia affinis). Copeia, 1987(1), 156. https://doi.org/10.2307/1446047

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free