| Abstract: | Aerial photography from the late 1960‘s and the late 1970‘s was used to study habitat changes along 78 American woodcock (Scolopax minor) singing-ground routes in 9 northeastern states. The most noticeable changes were declines in the amount of abandoned field, cropland, shrubland, and field/pasture. The amount of land in the urban/industrial type increased 33.4% from the late 1960‘s to the late 1970‘s. We examined relationships between the woodcock call-count index and habitat variables using multiple-regression techniques. The abundance of calling male woodcock was positively correlated with the amount of abandoned field and alder (Alnus sp.) and negatively correlated with the amount of urban/industrial type. However, only the change in the urban/industrial type was significantly (P < 0.05) related to the change in the call-count index. Urban/industrial area increased, whereas the call-count index declined on average in our sample of routes by 1.4 birds/route (40.5%). |
| Genre: | Article |
| ProdID: | 5221873 |
| Citation Author: | Dwyer, T.J.; McAuley, D.G.; Derleth, E.L. |
| Citation Contributing Office: | Patuxent Wildlife Research Center |
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| Citation End Page: | 779 |
| Citation Issue: | 3 |
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| Citation Language: | English |
| Citation Larger Work Title: | Journal of Wildlife Management |
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| Citation Number Of Pages: | 8 |
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| Citation Phsyical Description: | 772-779 |
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| Citation Search Results Text: | Woodcock singing-ground counts and habitat changes in the northeastern United States; 1983; Article; Journal; Journal of Wildlife Management; Dwyer, T.J.; McAuley, D.G.; Derleth, E.L. |
| Citation Start Page: | 772 |
| Citation Volume: | 47 |
| Citation Year: | 1983 |
| Type: | citation/reference |
| Text: | Woodcock singing-ground counts and habitat changes in the northeastern United States; 1983; Article; Journal; Journal of Wildlife Management; Dwyer, T.J.; McAuley, D.G.; Derleth, E.L. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DOCUMENT): | http://www.jstor.org/stable/3808612 |
| Date Other: | Wed, 16 Jun 2010 12:19 -0500 |
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