Splendid Isolation: Patterns of Geographic Range Collapse in Endangered Mammals

Lomolino, Mark V.; Channell, Rob

doi:10.2307/1382345

Cited by 182 publications

(140 citation statements)

References 22 publications

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127

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“…In the Oklahoma panhandle, in the presence of plague, the most isolated prairie dog colonies had the highest probability of persistence (Lomolino and Smith 2001). These results and ours suggest an intuitive explanation for the nonintuitive but general observation that species in decline are lost first within the more populous, central portions of their ranges Channell 1995, Channell andLomolino 2000). This pattern of range decline, which results in remnant populations located at the periphery of a species' former range, is general to many geographic regions and taxonomic groups (Channell and Lomolino 2000).…”

supporting

confidence: 69%

Disease Limits Populations: Plague and Black-Tailed Prairie Dogs

Cully

Johnson

Collinge

et al. 2010

Vector-Borne and Zoonotic Diseases

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Plague is an exotic vector-borne disease caused by the bacterium Yersinia pestis that causes mortality rates approaching 100% in black-tailed prairie dogs (Cynomys ludovicianus). We mapped the perimeter of the active portions of black-tailed prairie dog colonies annually between 1999 and 2005 at four prairie dog colony complexes in areas with a history of plague, as well as at two complexes that were located outside the distribution of plague at the time of mapping and had therefore never been affected by the disease. We hypothesized that the presence of plague would significantly reduce overall black-tailed prairie dog colony area, reduce the sizes of colonies on these landscapes, and increase nearest-neighbor distances between colonies. Within the region historically affected by plague, individual colonies were smaller, nearest-neighbor distances were greater, and the proportion of potential habitat occupied by active prairie dog colonies was smaller than at plague-free sites. Populations that endured plague were composed of fewer large colonies (>100 ha) than populations that were historically plague free. We suggest that these differences among sites in colony size and isolation may slow recolonization after extirpation. At the same time, greater intercolony distances may also reduce intercolony transmission of pathogens. Reduced transmission among smaller and more distant colonies may ultimately enhance long-term prairie dog population persistence in areas where plague is present.

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supporting

confidence: 69%

Disease Limits Populations: Plague and Black-Tailed Prairie Dogs

Cully

Johnson

Collinge

et al. 2010

Vector-Borne and Zoonotic Diseases

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“…For example, Branch et al (1995) reported that near-minimum set algorithms when applied to tortoise and terrapin data, in southern Africa, had the eect of selecting preferentially for populations at the margins of species' ranges. ArauÂ jo and Williams (in press) have shown that, in Europe, this pattern is consistent for a wide variety of terrestrial vertebrates (but see Lesica and Allendorf, 1995;Lomolino and Channell, 1995;and Channel and Lomolino, 2000; for a debate on the conservation value of peripheral versus core populations). In order to minimise dispersion of selected areas (Bedward et al, 1992), Nicholls and Margules (1993) addressed the consequences of incorporating rules to ®nd solutions that favour adjacent areas.…”

Section: Introductionmentioning

confidence: 84%

Selecting areas for species persistence using occurrence data

Araújo

Williams

2000

Biological Conservation

355

270

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“…The takahe is relatively large, but its last population survived in difficult terrain in a remote area, as may be a normal pattern for a species approaching extinction (Lomolino & Channell 1995). If the time of extinction, or even the fact of extinction, is difficult to prove with a species known from skins and the living bird, it is much more difficult for species known only from fossils.…”

Section: Discussion Extinctionmentioning

confidence: 99%

Late Holocene extinction of Finsch's duck(Chenonetta finschi),an endemic, possibly flightless, New Zealand duck

Holdaway¹,

Jones

Athfield

2002

Journal of the Royal Society of New Zealand

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Finsch's duck (Chenonetta finschi), an extinct, possibly flightless New Zealand endemic, was widely distributed and apparently abundant immediately before human settlement of New Zealand, but its bones have rarely been identified in archaeological sites. Its extinction has been variously attributed to habitat changes, predation by the introduced Pacific rat (Rattus exulans), and human predation. Discriminating between possible causes of its extinction hinges on determining the relative timing of phases of the extinction process and the arrival of rats and humans. Methodological problems of determining the time of extinction of fossil species are reviewed. Bayesian statistical analysis of a series of accelerator mass spectrometry 14 C ages on gelatin from Finsch's duck bones from non-cultural deposits suggests that the species began to decline before widespread Polynesian settlement and that it was much reduced in range and numbers by the time extensive human predation and habitat alteration began. Possible causes of its extinction after Polynesian settlement are discussed.

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Splendid Isolation: Patterns of Geographic Range Collapse in Endangered Mammals

Cited by 182 publications

References 22 publications

Disease Limits Populations: Plague and Black-Tailed Prairie Dogs

Disease Limits Populations: Plague and Black-Tailed Prairie Dogs

Selecting areas for species persistence using occurrence data

Late Holocene extinction of Finsch's duck(Chenonetta finschi),an endemic, possibly flightless, New Zealand duck

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