Filters: Tags: J.D. Murphree (X)
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To document current marsh conditions, imagery was acquired at 350 feet using unmanned aerial systems (UAS) for 6 separate study locations. Three Sites are healthy marsh and three sites are degraded marshes. For each study site, ground control markers were established and surveyed in using Real Time Kinematic (RTK) survey equipment. The imagery collected will be processed to produce a mosaics for each study site and analyzed to generate current land-water ratios. The land-water data will not only quantify how much marsh is being affected, but the data will also provide a spatial aspect as to where these degrading marsh fragmentations are occurring. The land-water data will be correlated with other data such as salinity,...
For many years marshes in the Texas/Louisiana coastal areas have served as critical habitat for the mottled duck, Anas fulvigula. Mottled ducks are a priority species in the Texas/Louisiana Gulf Coast Area. In recent years, mottled duck habitats have been threatened due to urbanization, flooding, saltwater intrusion, and hydrologic alterations that are affecting these vital coastal wetlands which are essential for the mottled duck nesting, feeding and livelihood. Historically characterized as high-quality habitats for mottled ducks, these marshes have been impacted by natural and anthropogenic changes that have led to declines in habitat quality. Cumulative and synergistic effects of contamination, and invasive...
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