Area sensitivity in North American grassland birds: Patterns and processes
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Abstract
Grassland birds have declined more than other bird groups in North America in the past 35-40 years (Vickery and Herkert 2001, Sauer et al. 2008), prompting a wide variety of research aimed at understanding these declines, as well as conservation programs trying to reverse the declines (Askins et al. 2007). Area sensitivity, whereby the pattern of a species’ occurrence and density increases with patch area (Robbins et al. 1989), has been invoked as an important issue in grassland-bird conservation, and understanding the processes that drive area sensitivity in grassland birds is a major conservation need (Vickery and Herkert 2001). Here, we review the literature on North American grassland bird species that is relevant to the following questions: (1) What is the evidence for area sensitivity in grassland birds? (2) What are the historical explanations for area sensitivity? (3) What ecological processes could produce area sensitivity? And (5) what are the conservation implications of knowing the processes behind area sensitivity? Because of space limitations, we could not cite every paper we reviewed; the cited papers are given as examples of the literature in this field
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Area sensitivity in North American grassland birds: Patterns and processes |
| Series title | The Auk |
| DOI | 10.1525/auk.2009.1409 |
| Volume | 126 |
| Issue | 2 |
| Year Published | 2009 |
| Language | English |
| Publisher | American Ornithological Society |
| Description | 12 p. |
| First page | 233 |
| Last page | 244 |
| Google Analytic Metrics | Metrics page |