The DOI matches its Crossref record; 9 of the 9 references it cites were found in a registry or an index.
Observer Differences in the North American Breeding Bird Survey
Open accessAbstract
Because count data collected in many bird surveys are only an index to population size, factors that can influence the counts must be identified and incorporated into analyses. Observer quality is often ignored in analyses of population changes from survey data, but observers differ in methods and capabilities and, hence, tend to count different numbers of birds. We assess the consequences of between-observer differences in counts for estimation of population trends in the North American Breeding Bird Survey. Observer differences in numbers of birds counted were found in 50% of the 369 species we examined. For many species, observers in later years tended to count more birds than observers in earlier years, suggesting an increase in observer quality over time. Analysis of population trends from 1966 through 1991 indicates that failure to include observers as covariables in the analysis results in an overly optimistic view of population trends.
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Cites
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Real-time bioacoustics monitoring and automated species identification
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Wikle, C. K. (2003) · Ecology · doi:10.1890/0012-9658(2003)084[1382:hbmfpt]2.0.co;2 · Cited by 431
Monitoring change in biodiversity through composite indices
Buckland, S. T., Magurran, A. E., Green, R. E., & Fewster, R. M. (2005) · Philosophical Transactions of the Royal Society B: Biological Sciences · doi:10.1098/rstb.2004.1589 · Cited by 403
Metadata
- Authors
- Sauer, J. R., Peterjohn, B. G., & Link, W. A.
- Venue
- The Auk
- Publisher
- Oxford University Press (OUP)
- Published
- 1994-01
- Volume
- 111
- Issue
- 1
- Pages
- 50-62
- ISSN
- 0004-8038 (ISSN-L)
- 1938-4254
- OpenAlex
- W2006627953
- Cited by
- 422
- References
- 9
- FWCI
- 12.26
- Type
- journal article
- Language
- en
- Open access
- green
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
