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Recent Wood Stork Population Trends in the United States
Ist Teil von
The Wilson bulletin (Wilson Ornithological Society), 1979-12, Vol.91 (4), p.512-523
Ort / Verlag
Wilson Ornithological Society
Erscheinungsjahr
1979
Link zum Volltext
Quelle
EZB Free E-Journals
Beschreibungen/Notizen
Surveys of the resident population of Wood Storks in the southwestern United States showed that numbers of breeding adults declined 41% between 1960 and 1975. The decline has been sharp in the large south Florida colonies, while the number of birds breeding in a scatter of smaller colonies between central Florida and southeastern Georgia has remained stable or slightly increased. Reasons for the decline are discussed, including loss of colony sites, lack of protection at colonies, and loss of an adequate food base. We conclude, largely through circumstantial evidence, that the single important factor responsible for the stork decline has been a loss of feeding habitats coupled with a reduction in fish biomass or food availability in remaining wetlands.