| Abstract: | The mean eggshell thickness of 11 eggs of bald eagles (Haliaeetus leuccocephalus) and 21 samples of eggshell fragments (n = 32) collected from 14 nests in Arizona during 1977 to 1985 was 0.539 mm, 8.8% thinner than the pre-1947 (pre-DDT) mean for eggs from southern California and Baja California, Mexico. Eleven eggs analyzed for contaminants contained slightly elevated concentrations of DDE (3.3pmm wet weight) and mercury (0.14 ppm). Productivity of sampled pairs was low but improving. The predictive equations of Wiemeyer et al. (1984) were also verified. |
| Genre: | Article |
| ProdID: | 5222235 |
| Citation Author: | Grubb, T.G.; Wiemeyer, S.N.; Kiff, L.F. |
| Citation Contributing Office: | Patuxent Wildlife Research Center |
| Citation Datum: | |
| Citation Day: | |
| Citation Edition: | |
| Citation Editor: | |
| Citation End Page: | 301 |
| Citation Issue: | 3 |
| Citation Keywords: | |
| Citation Language: | English |
| Citation Larger Work Title: | Southwestern Naturalist |
| Citation LatN: | |
| Citation LatS: | |
| Citation LonE: | |
| Citation LonW: | |
| Citation Month: | |
| Citation No Pagination: | |
| Citation Number Of Pages: | 4 |
| Citation Online Only Flag: | |
| Citation Phsyical Description: | 298-301 |
| Citation Projection: | |
| Citation Public Comments: | |
| Citation Publisher: | |
| Citation Series: | |
| Citation Series Code: | |
| Citation Series Number: | |
| Citation Search Results Text: | Eggshell thinning and contaminant levels in bald eagle eggs from Arizona, 1977 to 1985; 1990; Article; Journal; Southwestern Naturalist; Grubb, T.G.; Wiemeyer, S.N.; Kiff, L.F. |
| Citation Start Page: | 298 |
| Citation Volume: | 35 |
| Citation Year: | 1990 |
| Type: | citation/reference |
| Text: | Eggshell thinning and contaminant levels in bald eagle eggs from Arizona, 1977 to 1985; 1990; Article; Journal; Southwestern Naturalist; Grubb, T.G.; Wiemeyer, S.N.; Kiff, L.F. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DOCUMENT): | http://www.jstor.org/stable/3671943 |
| Date Other: | Wed, 16 Jun 2010 12:19 -0500 |
| Publisher: | |
