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This QR project contributed to the production of a scientific investigations report. From 1954 to 2004, water levels declined in the nontidal reach of the Apalachicola River, Florida, as a result of long-term changes in stage-discharge relations. Channel widening and deepening, which occurred throughout much of the river, apparently caused the declines. The period of most rapid channel enlargement began in 1954 and occurred primarily as a gradual erosional process over two to three decades, probably in response to the combined effect of a dam located at the head of the study reach (106 miles upstream from the mouth of the river), river straightening, dredging, and other activities along the river. Widespread recovery...
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This SSP project resulted in a dissertation: A Dynamic Model of Semipalmated Sandpiper Migration:Implications For Conservation. By Jeffrey Allan Hostetler Abstract I developed a stochastic dynamic programming model of adult female Semipalmated Sandpiper (Calidris pusilla) spring migration for the purpose of adaptive management of wetlands along their migratory route. Semipalmated Sandpipers are small abundant shorebirds that migrate through Merritt Island National Wildlife Refuge, FL, Yawkey Reserve, SC, Pea Island National Wildlife Refuge, NC, and Delaware Bay on their way from the Caribbean and South America to arctic North American breeding grounds. The first three stopover sites mentioned include managed wetlands....
The Black-capped Petrel is globally endangered with a breeding population estimated at ~1,000 pairs. The only confirmed breeding areas are located on Hispaniola in mountainous areas 1,500 – 2,000 m above sea level. Petrels nest in the thick and mesic understory and excavate burrows. Threats include habitat disruption driven by anthropogenic activities. The U.S. Fish and Wildlife Service predicted that the two major breeding areas on Hispaniola are likely to face extirpation by 2070 and, if no additional nest sites are found, this would represent a potential loss of up to 85-95% of the currently known breeding population. Two recent events appear to have substantially impacted nesting activity and breeding success...
Categories: Project; Tags: 2022, LCC, SSP-QR FWSR4
SSP and QRP projects initiated in Region 5 with FY17 dollars
map background search result map search result map Dynamic models of shorebird migration and their application to shorebird conservation in the Southeastern United States: an adaptive management framework Altered habitat of endangered or threatened freshwater mussels in the Apalachicola River floodplain, Florida, due to changes in river channel morphology and discharge Altered habitat of endangered or threatened freshwater mussels in the Apalachicola River floodplain, Florida, due to changes in river channel morphology and discharge Dynamic models of shorebird migration and their application to shorebird conservation in the Southeastern United States: an adaptive management framework