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Theses/Dissertations

2013

Biology

University of New Orleans Theses and Dissertations

Longleaf pine savanna, grassland birds, prescribed fire, vegetation structure

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Effects Of Prescribed Burns On Grassland Breeding Birds At Mississippi Sandhill Crane National Wildlife Refuge, Elizabeth A. Ruffman Dec 2013

Effects Of Prescribed Burns On Grassland Breeding Birds At Mississippi Sandhill Crane National Wildlife Refuge, Elizabeth A. Ruffman

University of New Orleans Theses and Dissertations

There has been a critical decline in grassland bird populations due to habitat fragmentation and deterioration, and suppression of natural fires. Alteration of the disturbance cycle may lead to changes in vegetation structure and thus habitat suitability for breeding grassland birds. Management practices at the Mississippi Sandhill Crane National Wildlife Refuge, including the use of prescribed fire, are in need of evaluation. My study asked what frequency of prescribed burns is necessary to support breeding grassland birds and whether vegetation structure varies among burn units. In this study, bird abundance and species richness did not differ significantly among burn units ...