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A landscape level AG spawning suitability data layer was developed to screen for landscape level features indicating locations that may be suitable for AG spawning within the lower Mississippi river corridor. Suitability was determined using a combination of inundation frequency, land cover, and thermal characteristics derived from related landscape level analyses (see below). The result for each evaluation was coded to display the predicted suitability for AG spawning . Habitat suitablility was informed by an alligator gar telemetry project on the St. Catherine Creek National Wildlife Refuge south of Natchez, MS. Approximately 20 fish were tagged in 2010, 2012 and 2013 and movement patterns on the floodplain were...
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In large river ecosystems, the timing, extent, duration and frequency of floodplain inundation greatly affect the quality of fish and wildlife habitat and the supply of important ecosystem goods and services. Seasonal high flows provide connectivity from the river to the floodplain, and seasonal inundation of the floodplain governs ecosystem structure and function. River regulation and other forms of hydrologic alteration have altered the connectivity of many rivers with their adjacent floodplain – impacting the function of wetlands on the floodplain and in turn, impacting the mainstem river function. Conservation and management of remaining floodplain resources can be improved through a better understanding of...
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Downloadable,
Map Service;
Tags: Conservation planning,
Data,
Data Acquisition and Development,
LCC Network Science Catalog,
Landsat Inundation Frequency Extent, All tags...
Population and Habitat Evaluation/Projection,
biota,
completed,
environment,
flood frequency,
floodplain,
frequency,
geoscientificInformation,
inlandWaters,
inundation,
landsat,
planningCadastre,
river, Fewer tags
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Description of the community and its mission: Through the Science Support Partnership (SSP) Program, the U.S. Geological Survey partners with the Fish and Wildlife Service to understand and provide the critical science information required to effectively manage our nation’s resources.
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Current and Historical Distribution of Alligator Gar (Atractosteus spatula) from NatureServe.org database.. NatureServe. 2004. Downloadable animal datasets. NatureServe Central Databases. Available from: www.natureserve.org/getData/dataSets/watershedHucs/index.jsp ([15 May 2013]).
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