Some effects of aldrin-treated rice on Gulf of Mexico coast wildlife.

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dc.acquisition-srcen_US
dc.call-noAcc# 1113en_US
dc.contract-noen_US
dc.contributor.authorFlickinger, E.L.en_US
dc.contributor.authorKing, K.A.en_US
dc.contributor.otherJournal of Wildlife Managementen_US
dc.date.accessioned2010-02-15T16:48:08Z
dc.date.available2010-02-15T16:48:08Z
dc.date.issued1972en_US
dc.degreeen_US
dc.descriptionp. 706-727.en_US
dc.description-otheren_US
dc.description.abstractWildlife casualties from aldrin-dieldrin poisoning are associated with the planting of aldrin-treated rice seed along the Texas Gulf Coast. The fulvous tree duck (Dendrocygna bicolor), which depends on the rice field habitats and is highly susceptible to aldrin-dieldrin poisoning, is suffering a serious population decline in that area. Dead waterfowl, shorebirds, and passerines were collected on study areas in Wharton, Brazoria, and Chambers counties, Texas, from 1967 through 1971. Residues of aldrin or dieldrin were found in all samples of bird casualties and in all eggs, scavengers, predators, fish, frogs, invertebrates, and soils. Fulvous tree ducks appeared to be less resistant to aldrin than other ducks. Dieldrin residues in brains of dead fulvous tree ducks were low, but whole-body residues were as high as 16 ppm. Brains of other dead ducks and geese averaged 10 ppm dieldrin. Some dead birds were exposed by eating treated rice seed, but many dead birds with high dieldrin residues were species that feed largely on invertebrates. Although soil residues were low, snails and crayfish contained enough aldrin and dieldrin (average 9.5 ppm) to account for deaths in birds that fed heavily on these invertebrates over a period of time. When fulvus tree ducks were penned for 3 days in fields aerially planted with treated seed, 3 of 10 birds died with brain residues of 2.5, 2.9, and 6.8 ppm dieldrin, and others were intoxicated. None of eight died, and some gained weight, when penned in fields planted with untreated seed. This study adds further evidence for the suspected lethal effects of aldrin-treated rice seed on wild birds and other wildlife in rice field habitats.en_US
dc.description.urihttp://gbic.tamug.edu/request.htmen_US
dc.geo-codeNorthwestern Gulf of Mexicoen_US
dc.geo-codeTexas coasten_US
dc.historyen_US
dc.identifier.urihttp://hdl.handle.net/1969.3/18842
dc.latitudeen_US
dc.locationGBIC Collection file roomen_US
dc.longitudeen_US
dc.notesen_US
dc.placeen_US
dc.publisheren_US
dc.relation.ispartofseries1113.00en_US
dc.relation.urien_US
dc.scaleen_US
dc.seriesen_US
dc.subjectpesticidesen_US
dc.subjectinsecticidesen_US
dc.subjectchlorinated hydrocarbonsen_US
dc.subjectaldrinen_US
dc.subjectdieldrinen_US
dc.subjectDendrocygna bicoloren_US
dc.subjectfulvous tree ducken_US
dc.subjectaquatic birdsen_US
dc.titleSome effects of aldrin-treated rice on Gulf of Mexico coast wildlife.en_US
dc.typeArticleen_US
dc.universityen_US
dc.vol-issue36(3)en_US

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