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Environmental Biology of Fishes

, Volume 30, Issue 3, pp 287–293 | Cite as

Habitat selection and subsequent reproductive success in the beaugregory damselfish

  • Murray Itzkowitz
Full Papers

Synopsis

Male beaugregory damselfish,Stegastes leucostictus, were provided with three types of artificial breeding structures to determine if they change habitats based on past or future reproductive payoffs. All three site types quickly lured males away from their natural sites. In comparison to those living on natural sites, those using artificial sites were less likely to move to different areas and had a higher reproductive success. When given no choice, male reproductive success was correlated to structural type. A second experiment provided males with an additional structure after using the intermediate quality type for 2 months. Males would often initially use both sites but would eventually shift their spawning activity to the new site if it was of the same quality or better than the old one. However, males would not move if the new site was of inferior quality. When given a new site identical to the initial one, approximately half of the males shifted to the new site. There was no evidence that reproductive performance influenced a male's decision to use a new site.

Key words

Stegastes leucostictus Territory Habitat quality Habitat selection Reproduction Coral reef fish 

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Copyright information

© Kluwer Academic Publishers 1991

Authors and Affiliations

  • Murray Itzkowitz
    • 1
  1. 1.Department of BiologyLehigh UniversityBethlehemUSA

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