| Abstract: | A computer simulation study of the population trend estimator used for the Mourning Dove Call-Count Survey, Woodcock Singing Ground Survey, Breeding Bird Survey and other surveys concluded that the estimator had negligible bias in most situations but that observer covariables should not be used with less than five years of data. With rare species (e.g. two birds per route), at least five years should be used. The estimator is seriously biased towards not detecting population changes with very rare species (e.g. 0.3 birds per route). Other technical recommendations are made. |
| Genre: | Book chapter |
| ProdID: | 5210410 |
| Citation Author: | Geissler, P.H.; Link, W.A. |
| Citation Contributing Office: | Patuxent Wildlife Research Center |
| Citation Datum: | |
| Citation Day: | |
| Citation Edition: | |
| Citation Editor: | Wegman, E.J.; Gantz, D.T.; Miller, J.J. (editors) |
| Citation End Page: | 759 |
| Citation Issue: | |
| Citation Keywords: | |
| Citation Language: | English |
| Citation Larger Work Title: | Computing Science and Statistics: Proceedings of the 20th Symposium on the Interface |
| Citation LatN: | |
| Citation LatS: | |
| Citation LonE: | |
| Citation LonW: | |
| Citation Month: | |
| Citation No Pagination: | |
| Citation Number Of Pages: | |
| Citation Online Only Flag: | |
| Citation Phsyical Description: | xxxvii, 860 |
| Citation Projection: | |
| Citation Public Comments: | |
| Citation Publisher: | American Statistical Association |
| Citation Series: | |
| Citation Series Code: | |
| Citation Series Number: | |
| Citation Search Results Text: | Bias of animal population trend estimates; 1988; Book chapter; Computing Science and Statistics: Proceedings of the 20th Symposium on the Interface; Geissler, P.H.; Link, W.A. |
| Citation Start Page: | 755 |
| Citation Volume: | |
| Citation Year: | 1988 |
| Type: | citation/reference |
| Text: | Bias of animal population trend estimates; 1988; Book chapter; Computing Science and Statistics: Proceedings of the 20th Symposium on the Interface; Geissler, P.H.; Link, W.A. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Tue, 9 Jun 2009 09:23 -0500 |
| Publisher: | American Statistical Association |
