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The rate of species extinction in declining or fragmented ecological communities.

Publication ,  Journal Article
Halley, JM; Pimm, SL
Published in: PloS one
January 2023

Loss of habitat can take many forms, ranging from the fragmentation of once-continuous habitat to the slow erosion of populations across continents. Usually, the harm leading to biodiversity loss is not immediately obvious: there is an extinction debt. Most modelling research of extinction debt has focussed on relatively rapid losses of habitat with species loss happening in response afterwards. In this paper, using a niche-orientated community model we compare and contrast two different mechanisms and find contrasting patterns of extinction debt. From small fragments, we typically see the rapid initial loss of many species, followed by a slower loss of species on larger timescales. When we consider slow incremental declines of population sizes, we find initially a slow rate of extinction which subsequently increases exponentially. In such cases, the delayed extinctions may go undetected initially both because the extinctions may be small relative to background randomness and because rate itself is not constant and takes time to reach its maximum.

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Published In

PloS one

DOI

EISSN

1932-6203

ISSN

1932-6203

Publication Date

January 2023

Volume

18

Issue

7

Start / End Page

e0285945

Related Subject Headings

  • Population Density
  • General Science & Technology
  • Extinction, Biological
  • Biota
  • Biodiversity
 

Citation

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Halley, J. M., & Pimm, S. L. (2023). The rate of species extinction in declining or fragmented ecological communities. PloS One, 18(7), e0285945. https://doi.org/10.1371/journal.pone.0285945
Halley, John M., and Stuart L. Pimm. “The rate of species extinction in declining or fragmented ecological communities.PloS One 18, no. 7 (January 2023): e0285945. https://doi.org/10.1371/journal.pone.0285945.
Halley JM, Pimm SL. The rate of species extinction in declining or fragmented ecological communities. PloS one. 2023 Jan;18(7):e0285945.
Halley, John M., and Stuart L. Pimm. “The rate of species extinction in declining or fragmented ecological communities.PloS One, vol. 18, no. 7, Jan. 2023, p. e0285945. Epmc, doi:10.1371/journal.pone.0285945.
Halley JM, Pimm SL. The rate of species extinction in declining or fragmented ecological communities. PloS one. 2023 Jan;18(7):e0285945.

Published In

PloS one

DOI

EISSN

1932-6203

ISSN

1932-6203

Publication Date

January 2023

Volume

18

Issue

7

Start / End Page

e0285945

Related Subject Headings

  • Population Density
  • General Science & Technology
  • Extinction, Biological
  • Biota
  • Biodiversity