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SEAFWA 2018 has ended
The following schedule is from the 72nd Annual Conference of the Southeastern Association of Fish & Wildlife Agencies which was held October 21-24, 2018 in Mobile, Alabama. 
Tuesday, October 23 • 2:40pm - 3:00pm
SYMPOSIUM-04: Using Maximum Entropy Modelling and Geographic Information Systems to Assist with Aquatic Species and Habitat Conservation Efforts in North Carolina

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AUTHORS: Mark Endries, U.S. Fish & Wildlife Service

ABSTRACT: To better understand the spatial distribution of freshwater aquatic species in North Carolina, the U.S. Fish and Wildlife Service’s Asheville Field Office incorporated the tools of geographic information systems and maximum entropy (maxent) modeling to create predictive distribution maps for a wide range of aquatic species. Predictive distribution maps for 289 different freshwater aquatic species were created. The maps were derived by comparing species occurrence information with a suite of stream- and landcover-derived environmental variables. The Bayesian probability postulate of maximum entropy states that, subject to known constraints, the probability distribution which best represents the current state of knowledge is the one with largest entropy. Maxent compares a set of occurrences to a set of environmental variables of the same defined space to estimate a target probability distribution of maximum entropy. The maps identify the predicted probability of suitable habitat conditions, by species, for each stream segment in North Carolina. These maps serve as foundational datasets useful in assisting with conservation efforts of individual species or collectively in regional and statewide prioritizations. The maps and associated data facilitates the communication of aquatic species needs to assist with conservation planning efforts throughout the state and nation. They have been used in many conservation efforts throughout the state, both within the U.S. Fish and Wildlife Service and with our state agency partners. How the work is being integrated with current conservation planning efforts will be discussed.

Tuesday October 23, 2018 2:40pm - 3:00pm
Grand Bay I

Attendees (8)