| Summary: | Osprey (Pandion haliaetus) populations in various parts of North America decreased during the 1950's and 1960's, primarily because of pesticide contamination, with eastern populations being most affected. The Florida population, considered to be non-migratory, contained low levels of pesticide contaminants. The major cause of localized population decreases that have taken place in the state has been destruction of habitat. This study analyzes the nesting population of osprey in southern Florida during the breeding season of 1978-80 and compares findings to that of an earlier study. The authors conclude that a substantial decrease has occurred in the number of ospreys nesting in Florida Bay. The survey area was divided into three regions: Florida Bay, Whitewater Bay and the Gulf Coast. Osprey (Pandion haliaetus) populations in various parts of North America decreased during the 1950's and 1960's, primarily because of pesticide contamination, with eastern populations being most affected. The Florida population, considered to be non-migratory, contained low levels of pesticide contaminants. The major cause of localized population decreases that have taken place in the state has been destruction of habitat. This study analyzes the nesting population of osprey in southern Florida during the breeding season of 1978-80 and compares findings to that of an earlier study. The authors conclude that a substantial decrease has occurred in the number of ospreys nesting in Florida Bay. The survey area was divided into three regions: Florida Bay, Whitewater Bay and the Gulf Coast. Bibliography: p. 17-18. Electronic reproduction. s FI00521649 cab
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