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Organochlorine contaminants and reproductive success of black skimmers in south Texas USA 1984

Journal of Field Ornithology
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Abstract

Ninety-four Black Skimmer (Rhynchops niger) nests on a dredged-material island colony near Laguna Vista, Texas, were fenced and monitored in 1984 from early incubation until 21 d after the last egg hatched. The daily probability of success was greater during the nestling (99.7%/d/nest) period than during the incubation (98.5%) or hatching (98.5%) periods. By contrast, the success of eggs or young in successful nests was greater during the incubation (91.3%) and hatching (84.3%) periods than the nestling period (63.8%). An estimated 1.1 young/nest survived to 21 d of age. DDE concentrations in eggs were lower in 1984 than in eggs from the same colony in 1979-1981. DDE was higher in eggs taken from nests where none of the remaining eggs hatched (.hivin.x = 5.9 ppm) compared to eggs taken from nests where all the remaining eggs hatched (.hivin.x = 1.9 ppm).

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Organochlorine contaminants and reproductive success of black skimmers in south Texas USA 1984
Series title Journal of Field Ornithology
Volume 58
Issue 4
Year Published 1987
Language English
Publisher U.S. Fish and Wildlife Service
Contributing office(s) Upper Midwest Environmental Sciences Center
Description pp. 480-489
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Journal of Field Ornithology
First page 480
Last page 489