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dc.contributor.authorDeLuca, William V.
dc.contributor.authorStudds, Colin E.
dc.contributor.authorRockwood, Larry L.
dc.contributor.authorMarra, Peter P.
dc.date.accessioned2019-03-13T14:29:41Z
dc.date.available2019-03-13T14:29:41Z
dc.date.issued2004-12
dc.description.abstractThe landscape within the Chesapeake Bay watershed has been and continues to be impacted by human modifications. Understanding if such anthropogenic disturbances influence organisms that are dependent upon estuarine wetlands remains unclear. We developed an index of marsh bird community integrity (IMBCI) to evaluate marsh bird communities and wetland condition. During the 2002 and 2003 summers, we detected 30 bird species at 219 point count locations distributed among 96 wetlands. IMBCI scores for each wetland were used to determine whether wetland habitat characteristics and urban/suburban development, agriculture, and forest at three different spatial scales (watershed, 1000-m buffer, and 500-m buffer) influenced marsh bird community integrity. We found no relationship between IMBCI scores and wetland habitat characteristics, implying that marsh bird community integrity is not related to any single plant community. Nonparametric changepoint analysis indicated that marsh bird community integrity was significantly reduced when the amount of urban/suburban development within 500 m and 1000 m of the marsh exceeded 14% and 25%, respectively. There was no effect of urban/suburban development on IMBCI scores at the watershed scale. The results of our study demonstrate that marsh bird community integrity shows a threshold response to urban/suburban development at local scales. IMBCI scores, combined with the identification of a land-use threshold, can be easy to interpret and may help communicate complex ecological data to natural resource managers and conservation planners.en_US
dc.description.sponsorshipWe appreciate the hard work of Anne Balogh, Suzanne Conrad, Sacha Mkheidze, Dan Mummert, Ryan Peters, and Beth Wright. We also thank Ryan King for providing statistical advice and improvements on the manuscript and Tim O’Connell for assistance during IMBCI development. This research was funded by a grant from the U.S. Environmental Protection Agency’s Science to Achieve Results (STAR) Estuarine and Great Lakes (EaGLe) program to the Atlantic Slope Consortium. Although the research described in this article has been funded wholly or in part by the U.S. Environmental Protection Agency through cooperative agreement #R-82868401 to the Smithsonian Environmental Research Center, it has not been subjected to the Agency’s required peer and policy review and therefore does not necessarily reflect the views of the Agency and no official endorsement should be inferred.en_US
dc.description.urihttps://link.springer.com/article/10.1672/0277-5212(2004)024[0837:IOLUOT]2.0.CO;2en_US
dc.format.extent11 pagesen_US
dc.genrejournal articlesen_US
dc.identifierdoi:10.13016/m2rd5k-ntzr
dc.identifier.citationDeLuca, W.V., Studds, C.E., Rockwood, L.L. et al. Wetlands (2004) 24: 837. https://doi.org/10.1672/0277-5212(2004)024[0837:IOLUOT]2.0.CO;2en_US
dc.identifier.urihttps://doi.org/10.1672/0277-5212(2004)024[0837:IOLUOT]2.0.CO;2
dc.identifier.urihttp://hdl.handle.net/11603/13026
dc.language.isoen_USen_US
dc.publisherSpringer Netherlandsen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Geography and Environmental Systems Department
dc.rightsThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
dc.rightsThis work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.*
dc.rightsPublic Domain Mark 1.0
dc.rights.urihttp://creativecommons.org/publicdomain/mark/1.0/*
dc.subjectthreshold responseen_US
dc.subjectspecialisten_US
dc.subjectgeneralisten_US
dc.subjectindex of marsh bird community integrityen_US
dc.subjectestuarine wetlandsen_US
dc.subjectChesapeake Bayen_US
dc.titleInfluence of land use on the integrity of marsh bird communities of Chesapeake Bay, USAen_US
dc.typeTexten_US


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This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
Except where otherwise noted, this item's license is described as This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.