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R. Lamberson, B. Noon, C. Voss, K. McKelvey (1994)
Reserve Design for Territorial Species: The Effects of Patch Size and Spacing on the Viability of the Northern Spotted Owl*Conservation Biology, 8
(1995)
Regional forest fragment ; ltion and the nesting success of migraton birds
(1992)
Site fidelity of migratory warblers in temperate breecling and Neotropical wintering areas : implications for population dynamics . habitat selection
P. Stacey, M. Taper (1992)
Environmental Variation and the Persistence of Small Populations.Ecological applications : a publication of the Ecological Society of America, 2 1
I. Newton (1992)
EXPERIMENTS ON THE LIMITATION OF BIRD NUMBERS BY TERRITORIAL BEHAVIOURBiological Reviews, 67
(1987)
Spatial stnlcture and population viability
Many songbird populations in the midwestem United States are structured as a network of sources and sinks that are linked by dispersal. We used a modeling approach to examine explicitly how populations respond to incremental fragmentation of source habitat and how this response may vary depending upon two life‐history attributes: fidelity to natal habitat type and reproductive strength of the source. Fragmentation of source habitat led to a predictable decline in population for both attributes examined, but the manner in which populations declined varied depending upon the reproductive strength of the source and the level of fidelity. When the source was weak and produced few excess individuals, fragmentation of source habitats resulted in a predictable and parallel population decline of adults in both the source and the sink. In this situation high fidelity to natal habitats was important for maintenance of population size and structure. Low fidelity to weak sources resulted in population extinction; populations experienced a demographic cost by dispersing from high quality source habitat to low quality sink habitat. In contrast, when the source was strong and produced many excess individuals, fragmentation of the source led to population declines in both the source and the sink, but this decline was more abrupt in sink habitats. When the source was strong and produced a large excess of individuals, nonfidelity to natal habitats had little effect on metapopulation size and structure.
Conservation Biology – Wiley
Published: Dec 1, 1995
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