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Source - sink dynamics of anurans in stormwater basins of New Jersey's coastal plain
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Title
Source - sink dynamics of anurans in stormwater basins of New Jersey's coastal plain
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ETD_2084
Identifier
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http://hdl.rutgers.edu/1782.2/rucore10001600001.ETD.000051874
Language
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eng
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theses
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(authority = RUETD)
Topic
Ecology, Evolution and Natural Resources
Subject
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(authority = ETD-LCSH)
Topic
Anura--Habitat--New Jersey
Subject
(ID = SBJ-3);
(authority = ETD-LCSH)
Topic
Storm water retention basins
Abstract
Stormwater basins are a commonly employed Best Management Practice designed to deal with the negative effects of runoff from impervious surfaces. They are ubiquitous in the landscape; yet the effect of these basins on faunal assemblages has not been investigated. Stormwater basins have the potential to influence the breeding distribution of anurans by being sources for some species and sinks for others. This study aims to determine which anuran species benefit from the existence of stormwater basins, which species are negatively impacted, and what local and landscape variables are the best predictors of these effects. Thirty-six permanently ponded stormwater basins in southern New Jersey’s outer coastal plain were monitored in 2008 for the presence of mating adults and anuran larvae by aural surveys, dip-netting and trapping. Interviews, visual encounters, dip-netting, and traps assessed fish presence. Water temperature, conductivity, and pH were measured throughout the growing season. A 100 foot buffer area surrounding the basins was divided into managed and unmanaged grass and woody vegetation as well as impervious surface. Two connectivity metrics, distance to a canopied corridor and percent of undeveloped upland within 500 meters, were analyzed in ArcGIS.
Fish were detected in 92% of the basins. Resistance to fish predation distinguished successful species, those with larvae present, from unsuccessful species, those with calling activity but no larval presence. Permanently ponded basins were sources for Bufo woodhousii fowleri, and Rana catesbeiana, and sinks for Pseudacris crucifer crucifer, Hyla versicolor, and Rana clamitans.
Connectivity to and availability of terrestrial habitat were significant predictors of how many species mated at the basins. The number of species increased as access to and amount of quality terrestrial habitat increased. This suggests that placement of permanently ponded basins near populations of threatened or endangered amphibians susceptible to fish predation is unadvisable. Additionally, as permanent stormwater ponds are sources for Rana catesbeiana, in areas where bullfrogs are invasive, basins will likely increase propagule pressure.
Fish were detected in 92% of the basins. Resistance to fish predation distinguished successful species, those with larvae present, from unsuccessful species, those with calling activity but no larval presence. Permanently ponded basins were sources for Bufo woodhousii fowleri, and Rana catesbeiana, and sinks for Pseudacris crucifer crucifer, Hyla versicolor, and Rana clamitans.
Connectivity to and availability of terrestrial habitat were significant predictors of how many species mated at the basins. The number of species increased as access to and amount of quality terrestrial habitat increased. This suggests that placement of permanently ponded basins near populations of threatened or endangered amphibians susceptible to fish predation is unadvisable. Additionally, as permanent stormwater ponds are sources for Rana catesbeiana, in areas where bullfrogs are invasive, basins will likely increase propagule pressure.
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electronic resource
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vii, 47 p. : ill.
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M.S.
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Includes bibliographical references (p. 41-47)
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by Kathleen McCarthy
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McCarthy
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Kathleen
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1952-
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Kathleen McCarthy
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Lathrop
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Richard
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chair
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Richard G. Lathrop
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Morin
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Peter
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Peter J. Morin
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Handel
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Steven
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Steven N. Handel
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Rutgers University
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Graduate School - New Brunswick
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2009
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2009-10
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xx
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Rutgers University Electronic Theses and Dissertations
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ETD
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Graduate School - New Brunswick Electronic Theses and Dissertations
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rucore19991600001
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doi:10.7282/T3ZS2WP6
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ETD graduate
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The author owns the copyright to this work
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Copyright protected
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Open
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McCarthy
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Kathleen
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Kathleen McCarthy
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Rutgers University. Graduate School - New Brunswick
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I hereby grant to the Rutgers University Libraries and to my school the non-exclusive right to archive, reproduce and distribute my thesis or dissertation, in whole or in part, and/or my abstract, in whole or in part, in and from an electronic format, subject to the release date subsequently stipulated in this submittal form and approved by my school. I represent and stipulate that the thesis or dissertation and its abstract are my original work, that they do not infringe or violate any rights of others, and that I make these grants as the sole owner of the rights to my thesis or dissertation and its abstract. I represent that I have obtained written permissions, when necessary, from the owner(s) of each third party copyrighted matter to be included in my thesis or dissertation and will supply copies of such upon request by my school. I acknowledge that RU ETD and my school will not distribute my thesis or dissertation or its abstract if, in their reasonable judgment, they believe all such rights have not been secured. I acknowledge that I retain ownership rights to the copyright of my work. I also retain the right to use all or part of this thesis or dissertation in future works, such as articles or books.
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