| Abstract: | The population status, reproductive success, and levels of environmental contaminants in brown pelicans (P. occidentalis) in Texas were studied from 1975 through 1981. Breeding populations increased from 18 pairs in 1975 to 57 pairs in 1981. All unhatched eggs salvaged for analyses of contaminant residues contained DDT metabolites. Mean DDE levels varied from 0.9 to 2.4 ppm and about 7% of the samples had residues that approached critical levels that could affect reproductive success. DDE levels did not decline from 1975 to 1981 and residues leveled off at higher values than those in South Carolina and Louisiana pelican populations. PCB [polychlorinated biphenyl] residues also remained stable. Endrin was detected only in 1975. |
| Genre: | Article |
| ProdID: | 5222016 |
| Citation Author: | King, K.A.; Blankinship, D.R.; Payne, E.; Krynitsky, A.J.; Hensler, G.L. |
| Citation Contributing Office: | Patuxent Wildlife Research Center |
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| Citation End Page: | 214 |
| Citation Issue: | 2 |
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| Citation Language: | English |
| Citation Larger Work Title: | Wilson Bulletin |
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| Citation Number Of Pages: | 14 |
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| Citation Phsyical Description: | 201-214 |
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| Citation Search Results Text: | Brown pelican populations and pollutants in Texas 1975-1981; 1985; Article; Journal; Wilson Bulletin; King, K.A.; Blankinship, D.R.; Payne, E.; Krynitsky, A.J.; Hensler, G.L. |
| Citation Start Page: | 201 |
| Citation Volume: | 97 |
| Citation Year: | 1985 |
| Type: | citation/reference |
| Text: | Brown pelican populations and pollutants in Texas 1975-1981; 1985; Article; Journal; Wilson Bulletin; King, K.A.; Blankinship, D.R.; Payne, E.; Krynitsky, A.J.; Hensler, G.L. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DOCUMENT): | http://elibrary.unm.edu/sora/Wilson/v097n02/p0201-p0214.pdf |
| Date Other: | Wed, 16 Jun 2010 12:18 -0500 |
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