Wading birds as biological indicators: 1975 colony survey.

dc.acquisition-srcen_US
dc.call-noQL696.C5 1977 GBAYen_US
dc.contract-noen_US
dc.contributor.authorCuster, T.W.en_US
dc.contributor.authorOsborn, R.G.en_US
dc.contributor.otheren_US
dc.date.accessioned2010-02-15T17:01:29Z
dc.date.available2010-02-15T17:01:29Z
dc.date.issued1977en_US
dc.degreeen_US
dc.description28 p.en_US
dc.description-otheren_US
dc.description.abstractIn 1975 we studied the suitability of wading birds (herons and their allies) as biological indicators in the coastal environment. Eight teams of investigators located and censused 198 colonies along the Atlantic coast from Maine to Florida. Fourteen species including over one-quarter million breeding birds were censused. The number of species in colonies ranged from 1 to 11. The number of one- and two-species colonies increased from Florida to Maine. Colony size decreased from Florida to Maine. Wading bird colony sites are generally active each year and the number of colonies may have recently increased in some areas of the coast. Both species compostition and total population of colonies fluctuate from year to year. The breeding population of wading birds was correlated with the area of coastal wetlands by State. Five teams of investigators studied the reproductive biology of nine species in 13 colonies. Mean clutch size, the percentage of nests in which one or more eggs hatched, and the overall percentage of eggs that hatched differed among colonies for some species, but no latitudinal gradient was found in any of these characteristics for any species. The use of wading birds to their full potential as biological indicators requires further exploration: survey and reproductive success methods need to be tested, the survey of colonies repeated, available historical information assembled, and habitat requirements measured.en_US
dc.description.urihttp://gbic.tamug.edu/request.htmen_US
dc.geo-codeAtlantic coasten_US
dc.historyen_US
dc.identifier.urihttp://hdl.handle.net/1969.3/21080
dc.latitudeen_US
dc.locationGBIC Collectionen_US
dc.longitudeen_US
dc.notesen_US
dc.placeWashington, D.C.:en_US
dc.publisherU.S. Department of Interior, Fish and Wildlife Service.en_US
dc.relation.ispartofseries3267.00en_US
dc.relation.urien_US
dc.scaleen_US
dc.seriesSpecial Scienctific Report--Wildlife No. 206en_US
dc.subjectheronsen_US
dc.subjectindicatorsen_US
dc.subjectpopulation numberen_US
dc.subjectpopulation dynamicsen_US
dc.subjectbreeding sitesen_US
dc.subjectwetlandsen_US
dc.subjectwaterfowlen_US
dc.subjectreproductionen_US
dc.titleWading birds as biological indicators: 1975 colony survey.en_US
dc.typeBooken_US
dc.universityen_US
dc.vol-issueen_US

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