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The following schedule is subject to change (as of October 11, 2016). Please check back for updates. For more information about this meeting, go to: www.seafwa.org/conferences/2016
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Tuesday, October 18 • 10:40am - 11:00am
Wildlife. Modeling bird distributions in coastal Louisiana

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AUTHORS: Katrina Hucks, University of Louisiana at Lafayette; Paul Leberg, University of Louisiana at Lafayette

ABSTRACT: Coastal systems are facing many challenges including climate change, sea level rise, storm surge, and erosion, all of which contribute to land loss. In Louisiana, this has led to the development of the coastal master plan supported by Habitat Suitability Index models to predict wildlife responses under various management scenarios. However, these models were not originally intended for this purpose and their functionality at large spatial scales is unclear. The goal of this project is to use Maxent to predict how various bird distributions might change with coastal restoration and management. During the summer of 2015, we surveyed southern Louisiana for Mottled Duck, Brown Pelican, and Roseate Spoonbill. We measured salinity, temperature, water depth, SAV presence and cover, and recorded surrounding vegetation. Using a predictive vegetation model, we projected the probability of occurrence for each target species. We had strong model fit for all models. Important variables for Mottled Duck were water, Schoenoplectus californicus, bare ground, Paspalum vaginatum, and Typha domingensis. Important variables for Brown Pelican were water, Spartina alterniflora, T. domingensis, Sagittaria lancifolia, and Taxodium distichum. Important variables for Roseate Spoonbill were water, bare ground, S. californicus, T. domingensis, and SAV. We plan to incorporate other environmental variables in future analyses to project habitat changes over a 50 year period. These results will help us understand how coastal change is affecting distributions of avifauna in southern Louisiana.

Tuesday October 18, 2016 10:40am - 11:00am
Riverview B

Attendees (5)