Printer Friendly

AN EVALUATION OF LEKKING IN FIDDLER CRABS (Uca spp.).

AN EVALUATION OF LEKKING IN FIDDLER CRABS (Uca spp.). George A. Croll and James B. McClintock, Biology Department, University of Alabama at Birmingham, Birmingham, AL 35294.

The reproductive behavior of Uca has been extensively studied, especially the connections between the dimorphically enlarged male claw, female selection and reproductive success. Sometimes Uca males appear to aggregate in defined areas for the purpose of attracting a mate. In avian and mammalian species, these aggregations would be termed leks. The purpose of this study was to examine the lek-like breeding assemblages that occur in marsh habitats lacking vegetative cover. Three factors were considered: population dynamics, reproductive behavior, and substratum organic content. Four North American marshes were sampled; two on the Atlantic Coast, one on the Chesapeake Bay and one on the Gulf Coast. Males were significantly more common and more adults were found in marsh areas lacking vegetative cover. Moreover, individuals occupying open marsh areas spent significantly more time eliciting reproductive behaviors such as cheliped waving. Substratum organic contents (a measure of available food resources) in open areas lacking vegetative cover were equal to or less than organic contents in vegetatively covered areas indicating aggregative behaviors in open areas were not food induced. These factors suggest that lek behavior is an integral component of the reproductive repertoire of selected Uca spp.
COPYRIGHT 2000 Alabama Academy of Science
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2000 Gale, Cengage Learning. All rights reserved.

Article Details
Printer friendly Cite/link Email Feedback
Publication:Journal of the Alabama Academy of Science
Article Type:Brief Article
Geographic Code:1USA
Date:Jan 1, 2000
Words:218
Previous Article:FEMINIZATION OF POVERTY IN THE LABOR FORCE: 1980-1998 [*].
Next Article:A SURVEY OF THE FALL AND WINTER VASCULAR FLORA OF THE PIKE COUNTY POCOSIN, ALABAMA.
Topics:


Related Articles
Does Handedness Exist in Ghost and Fiddler Crabs?
Ectothermic's ability to regulate body temperature in ghost crabs. (South Carolina Academy of Sciences Abstracts).
Thermal constraints on sexual selection in fiddler crabs. (South Carolina Academy of Sciences Abstracts).
Crab coalitions.
Trading Post: trading news and views.
Patches of crab megalopae in the mouth of Delaware Bay--an analysis of spatial scales.
Thomson/Gale.
Patterns of larval release by the Asian shore crab Hemigrapsus sanguineus (De Haan): periodicity at diel and tidal frequencies.
Just fiddlin' around: fiddler crabs are easy to catch, and they make great baits.

Terms of use | Privacy policy | Copyright © 2019 Farlex, Inc. | Feedback | For webmasters