| Abstract: | Eggs of wild Screech Owls were collected from nests in northwestern Ohio in 1973. One egg was taken from each of 19 nests near the start of incubation. Mean shell thickness in these 19 eggs and mean thickness of 16 unhatched eggs did not differ from 49 archival eggs collected in Ohio and Pennsylvania prior to the widespread use of organochlorine pesticides. Residues were generally low although all eggs contained DDE and PCB?s. No relationship was found between hatching failures and the presence of organochlorine residues. Low residues are consistent with a long history of good nesting success and a stable population. |
| Genre: | Article |
| ProdID: | 5221366 |
| Citation Author: | Klaas, E.E.; Swineford, d.M. |
| Citation Contributing Office: | Patuxent Wildlife Research Center |
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| Citation End Page: | 426 |
| Citation Issue: | 3 |
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| Citation Language: | English |
| Citation Larger Work Title: | Wilson Bulletin |
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| Citation Number Of Pages: | 6 |
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| Citation Phsyical Description: | 421-426 |
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| Citation Search Results Text: | Chemical residue content and hatchability of screech owl eggs; 1976; Article; Journal; Wilson Bulletin; Klaas, E.E.; Swineford, d.M. |
| Citation Start Page: | 421 |
| Citation Volume: | 88 |
| Citation Year: | 1976 |
| Type: | citation/reference |
| Text: | Chemical residue content and hatchability of screech owl eggs; 1976; Article; Journal; Wilson Bulletin; Klaas, E.E.; Swineford, d.M. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DOCUMENT): | http://elibrary.unm.edu/sora/Wilson/v088n03/p0421-p0426.pdf |
| Date Other: | Wed, 16 Jun 2010 12:19 -0500 |
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