Aspects of the Behavioral Ecology, Demographics, and Habitat Utilization of Fiddler Crabs of the Southeastern United States PDF Download

Author: George A. Croll
Publisher:
ISBN:
Category : Fiddler crabs
Languages : en
Pages : 198

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Author:
Publisher:
ISBN:
Category : Dissertation abstracts
Languages : en
Pages : 776

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Author: Lauren L. Bergey
Publisher:
ISBN:
Category : Aquatic ecology
Languages : en
Pages : 268

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Author: Jocelyn Crane
Publisher: Princeton University Press
ISBN: 1400867932
Category : Science
Languages : en
Pages : 766

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Jocelyn Crane presents a survey of the members of the genus Uca, with special reference to their morphology, social behavior, and evolution. Her account is firmly based on numerous field studies along the world's warmer shores and on comparative work in laboratories and museums. Originally published in 1975. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.

Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 632

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Author: Melissa Susan Frix
Publisher:
ISBN:
Category : Crabs
Languages : en
Pages : 150

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Author: Orren Williams Hyman
Publisher:
ISBN:
Category : Fiddler-crabs
Languages : en
Pages : 34

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Author: Gwendolyn A. Murphy
Publisher:
ISBN:
Category : Animal burrowing
Languages : en
Pages : 198

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Positive rather than negative species interactions dominate in stressful environments like tidal marshes. Fiddler crabs have been shown to ameliorate environmental stress and increase primary productivity through their burrowing behavior. Most notably, bioturbation may facilitate growth of tidal marsh plants by altering soil oxygen concentration, decomposition rates, and soil drainage. In turn, plants provide protection from the elements, refuge from predators and roots provide structural support for burrows in soft substrate. However, dense vegetation may limit the fiddler crab's ability to maneuver on the surface and burrow. Similarly, there may be a threshold where fiddler crab activity becomes destructive to plant growth instead of facilitative. Relatively few fiddler crab and plant interaction studies have been conducted on the Gulf Coast compared to Atlantic Coast. Gulf Coast tidal marshes have distinct climate, dominant vegetation zones and dominant fiddler crab species, and consequently it is likely that community dynamics will differ from Atlantic Coast tidal marshes. To explore interactions between Gulf Coast fiddler crabs and tidal marsh plants, I conducted a seasonal fiddler crab habitat survey and a fiddler crab enclosure study. Both studies were conducted at Grand Bay National Estuarine Research Reserve in Mississippi, across four dominant tidal marsh vegetation zones (salt marsh, brackish marsh, fresh marsh and salt panne). Fiddler crab burrows and associated vegetation were randomly surveyed across the vegetation zones to determine fiddler crab burrow density and habitat preferences. Fiddler crab enclosures were established across the four vegetation zones. Enclosures provided a method to test impacts of fiddler crab burrowing on soil and plant parameters as well as to survey fiddler crab populations. Results of the habitat survey indicated that fiddler crabs utilized all four vegetation zones, but burrow density was statistically higher in the fresh marsh during winter compared to other zones. These results suggest that the fresh marsh may be important habitat for overwintering Gulf Coast fiddler crabs. Additionally, the fresh marsh was found to host higher fiddler crab species diversity and a more balanced sex ratio compared to other zones. The enclosure study established that fiddler crab activity had negligible impacts on plant growth in the salt and fresh marsh yet influenced plant growth in the brackish marsh (positively) and salt panne (negatively). The brackish marsh and salt panne are habitats of intermediate environmental stress for plants and fiddler crabs. Brackish marsh is more frequently inundated than the salt panne and hence bioturbation is likely to be more beneficial in the brackish marsh. Furthermore, brackish marsh below-ground structure is substantial and fiddler crab burrow density was low relative to the salt panne. My work indicates that vegetation abundance and fiddler crab burrow density may balance environmental stresses in tidal marshes and influence nature of fiddler crab and plant interactions.

Author: Alex Halton
Publisher: Roc Publishing
ISBN: 9780957697843
Category : Pets
Languages : en
Pages : 124

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Do fiddler crabs need air? What do fiddler crabs eat? Why does the fiddler crab have a big claw? How can I catch a fiddler crab? What is the difference between a male and female fiddler crab? Can you breed fiddler crabs? Where do I buy fiddler crabs? Did you know there are over 90 different species of Fiddler crabs? Fiddler crabs exhibit complex behaviour and require a specialised environment to thrive. To care for your pet fiddler crab you must know how to prepare your tank and make sure you choose the right aquarium mates. In this easy to read guide you will find the answers to all these questions and much more. Find out how to care for your pet fiddler crabs, discover facts about the unique fiddler crab life cycle, how to feed your fiddler crabs and advice choosing the perfect fiddler crab tank mates. Includes fun fiddler facts for kids.

Author: Ellen H. Gray
Publisher:
ISBN:
Category : Chesapeake Bay
Languages : en
Pages : 24

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