Electronic Resource
Oxford, UK; Malden, USA
:
Blackwell Science Inc
Restoration ecology
13 (2005), S. 0
ISSN:
1526-100X
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Biology
Notes:
We investigate the scenario in which some amount of higher quality habitat is destroyed and is then replaced by some undetermined amount of lower quality habitat. We examined how much low-quality habitat would need to be created to maintain the equilibrium population abundance in the entire geographic area. Using a source–sink model, we find that (1) the number of hectares of created habitat per hectare of destroyed habitat must equal the ratio of the high-quality habitat's productivity to the low-quality habitat's productivity, however, (2) if the created habitat is a sink, then there is a threshold fraction of destroyed high-quality habitat below which the initial population abundance cannot be maintained through the creation of habitat. We illustrate these results using data on Red-winged Blackbirds (Agelaius phoeniceus) in two different regions where high-quality habitat is being replaced by or converted into lower quality habitat.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1526-100X.2005.00066.x
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