Techniques and results of nongame bird monitoring in North America
held September 24-28, 1979.
By: C.S. Robbins, D. Bystrak, and P.H. Geissler
Edited by: H. Oelke
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Abstract
Long-term bird population trends based on accumulated ratios (proportional change) sometimes give a very misleading view of population change. Alternate methods of representing population change, based on the weighted means for the individual years, avoid the dangers of using ratios. Some advantages and disadvantages of various weighting techniques are discussed.
Suggested Citation
Robbins, C., Bystrak, D., Geissler, P., 1980, Techniques and results of nongame bird monitoring in North America, chap. of Bird Census Work and Nature Conservation. Proceedings VI of the International Conference on Bird Census Work. , p. 82-91.
| Publication type | Book chapter |
|---|---|
| Publication Subtype | Book Chapter |
| Title | Techniques and results of nongame bird monitoring in North America |
| Year Published | 1980 |
| Language | English |
| Publisher | Dachverband Deutscher Avifaunisten |
| Publisher location | Gottingen, West Germany |
| Contributing office(s) | Patuxent Wildlife Research Center |
| Description | 300 |
| Larger Work Type | Book |
| Larger Work Subtype | Other Government Series |
| Larger Work Title | Bird Census Work and Nature Conservation. Proceedings VI of the International Conference on Bird Census Work. |
| First page | 82 |
| Last page | 91 |