Short-Time-Base Studies of Turnover in Breeding Bird Populations on the California Channel Islands

Jones, Hannah; Diamond, Jared M.

doi:10.2307/1367103

Cited by 113 publications

(65 citation statements)

References 34 publications

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“…What is remarkable is that this debate mirrors, at the metapopulation level, the vitriolic arguments about whether or not there is substantial turnover, as envisioned by the equilibrium theory of island biogeography, for bird species of the California Channel Islands (Lynch & Johnson 1974, Jones & Diamond 1976. As Williamson (1981) concludes, most of the recorded "extinctions" of Channel Islands birds are not of dynamically distinct populations: there is far too much interchange between islands.…”

Section: )mentioning

confidence: 98%

Habitat fragmentation and population extinction of birds

Simberloff

1995

Ibis

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It has not been established that a major cause of extinction in birds or any other taxa is failure of metapopulation dynamics: the collapse of a network of ephemeral but discrete populations as movement between them becomes increasingly infrequent. The few data on who goes where and who mates with whom suggest that most species are structured as either a single large population or a small set of source populations and a larger set of sinks. The extinction of the latter is irrelevant to the persistence of the species. However, regional decline of a species in the face of habitat destruction and fragmentation can mimic a failure of metapopulation dynamics, because distinct aggregations of individuals will disappear much as they would if populations in an interacting network were eliminated one by one. Any species with highly restricted range is at great risk of extinction from spatially localized forces, such as cyclones or deforestation. Restricted range rather than inherent weakness is the main reason that so many island species have gone extinct or are endangered. Species with small populations in contact with much larger heterospecific ones with which they are interfertile are threatened with extinction by hybridization. Finally, the disappearance of a species from a site may be due to subtle habitat change, even if this observation seems superficially consistent with some general population theory, such as the dynamic equilibrium theory of island biogeography. Current theory is an inadequate substitute for intensive field studies as a means to address the conservation problems of individual species.

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Section: )mentioning

confidence: 98%

Habitat fragmentation and population extinction of birds

Simberloff

1995

Ibis

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“…This prediction was shown to be true by calculation of the relative turnover rates of different island biotas, e.g. for birds of the Channel Islands (Jones & Diamond, 1976).…”

Section: A Brief Consideration Of the Species Equilibrium Model For Imentioning

confidence: 82%

Evidence of Island Effects in South African Enterprise Ecosystems

Toerien¹,

Seaman²

2012

The Functioning of Ecosystems

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“…and both probability theory and empirical studies (Gilpin and Diamond 1981, Jones and Diamond 1976, Simberloff.1976 indicate that patch size should be an important determinant of extinction rate.…”

Section: The Metapopulation the Metapopulation Conceptmentioning

confidence: 99%

Ecology and management of the spotted owl in the Pacific Northwest.

Gutiérrez¹,

Carey²

1985

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Short-Time-Base Studies of Turnover in Breeding Bird Populations on the California Channel Islands

Cited by 113 publications

References 34 publications

Habitat fragmentation and population extinction of birds

Habitat fragmentation and population extinction of birds

Evidence of Island Effects in South African Enterprise Ecosystems

Ecology and management of the spotted owl in the Pacific Northwest.

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