Theses and Dissertations

ORCID

https://orcid.org/0009-0000-1836-6607

Advisor

Woodrey, Mark S.

Committee Member

Iglay, Ray B.

Committee Member

Evans, Kristine O.

Date of Degree

8-13-2024

Original embargo terms

Immediate Worldwide Access

Document Type

Graduate Thesis - Open Access

Major

Wildlife, Fisheries & Aquaculture

Degree Name

Master of Science (M.S.)

College

College of Forest Resources

Department

Department of Wildlife, Fisheries and Aquaculture

Abstract

Tidal marsh and its bird community across the northern Gulf of Mexico are subject to numerous disturbances such as oil spills, hurricanes, habitat loss from land use change, and high relative sea level rise rates looming in the future. Baseline population data and landscape associations are greatly needed to assess the current distribution and the future impact of perturbations on marsh birds across the Mississippi Gulf Coast. Using a standardized sampling design and point count survey protocol, we determined the abundance and population size of Clapper Rails, Common/Purple Gallinules, Least Bitterns, Marsh Wrens, Seaside Sparrows, Red-winged Blackbirds, and Common Yellowthroats across the Mississippi Gulf Coast. With abundance models for each species in 2021 and 2022, we further investigated the impact of important fine and broad scale landscape variables that affected species-specific abundance across variable marsh complexes. Finally, we generated species distribution maps based on our spatially-explicit baseline population estimates.

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