NDLI: Distribution and Habitat Associations of Breeding Secretive Marsh Birds in Louisiana’s Mississippi Alluvial Valley

Content Provider	Springer Nature Link
Author	Valente, Jonathon J. King, Sammy L. Wilson, R. Randy
Copyright Year	2011
Abstract	Populations of many North American secretive marsh birds (SMBs) have declined in recent decades, partially as a function of wetland loss. Protecting and restoring appropriate habitat for these species is contingent upon understanding the habitat features they utilize. We investigated breeding distributions of SMBs in northeast Louisiana at 118 wetlands in 2007 and 2008 and modeled species occupancy (ψ) as a function of habitat variables measured at local (≤100 m) and landscape (≤1 km) scales. Common Moorhens (Gallinula chloropus), Least Bitterns (Ixobrychus exilis), and Purple Gallinules (Porphyrula martinica) were the most commonly detected species, whereas breeding King Rails (Rallus elegans) and American Coots (Fulica americana) were rare. Local habitat features consistently played a greater role in predicting ψ than landscape features for the three most common species. The proportion of local wetland area dominated by robust emergent vegetation (i.e., Typha spp. and Zizaniopsis miliacea) positively influenced ψ for all species, while other wetland vegetation types tended to have a minimal or negative effect. Our results suggest the habitat characteristics preferred by breeding SMBs differ from those used by migrating shorebirds and wintering waterfowl and management and restoration objectives for those species may be inadequate for enhancing SMB habitat.
Starting Page	1
Ending Page	10
Page Count	10
File Format	PDF
ISSN	02775212
Journal	Wetlands
Volume Number	31
Issue Number	1
e-ISSN	19436246
Language	English
Publisher	Springer Netherlands
Publisher Date	2011-01-11
Publisher Institution	Society of Wetland Scientists
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Bittern Rail Wetland Environmental Management Freshwater & Marine Ecology Hydrogeology Coastal Sciences Ecology Landscape Ecology
Content Type	Text
Resource Type	Article
Subject	Ecology Environmental Chemistry

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