Spatial heterogeneity, source-sink dynamics, and the local coexistence of competing species

The American Naturalist
Priyanga Amarasekare, R M Nisbet

Abstract

Patch occupancy theory predicts that a trade-off between competition and dispersal should lead to regional coexistence of competing species. Empirical investigations, however, find local coexistence of superior and inferior competitors, an outcome that cannot be explained within the patch occupancy framework because of the decoupling of local and spatial dynamics. We develop two-patch metapopulation models that explicitly consider the interaction between competition and dispersal. We show that a dispersal-competition trade-off can lead to local coexistence provided the inferior competitor is superior at colonizing empty patches as well as immigrating among occupied patches. Immigration from patches that the superior competitor cannot colonize rescues the inferior competitor from extinction in patches that both species colonize. Too much immigration, however, can be detrimental to coexistence. When competitive asymmetry between species is high, local coexistence is possible only if the dispersal rate of the inferior competitor occurs below a critical threshold. If competing species have comparable colonization abilities and the environment is otherwise spatially homogeneous, a superior ability to immigrate among occupied patches...Continue Reading

References

Jun 1, 1951·Biometrika·J G SKELLAM
Jun 1, 1971·Proceedings of the National Academy of Sciences of the United States of America·R Levins, D Culver
Jul 1, 1992·The American Naturalist·W W MurdochA Stewart-Oaten
Aug 1, 1996·Trends in Ecology & Evolution·P C Dias

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Citations

Jun 30, 2009·Bulletin of Mathematical Biology·Sanyi TangYanni Xiao
Dec 4, 2003·Journal of Theoretical Biology·Priyanga Amarasekare
Mar 12, 2013·Theoretical Population Biology·Sebastian J Schreiber, Timothy P Killingback
Mar 29, 2007·Proceedings. Biological Sciences·Alejandro RodríguezHenrik Andrén
Mar 26, 2010·Proceedings. Biological Sciences·Patrick A VenailNicolas Mouquet
May 10, 2013·Proceedings. Biological Sciences·Cascade J B Sorte, J Wilson White
Dec 20, 2013·Proceedings. Biological Sciences·Zhiyuan Song, Marcus W Feldman
Jan 21, 2012·Conservation Biology : the Journal of the Society for Conservation Biology·Timothy J MillerEric S Menges
Dec 19, 2006·Frontiers in Zoology·Markus Knaden, Rüdiger Wehner
Mar 17, 2011·PloS One·Nicolas MouquetAndrew Gonzalez
Mar 9, 2005·Proceedings of the National Academy of Sciences of the United States of America·Val H SmithFrank Denoyelles
Oct 13, 2004·The American Naturalist·Priyanga AmarasekareMarcel Holyoak
Jul 14, 2011·The American Naturalist·Christopher F SteinerZakaria Aqel
Jan 29, 2008·The American Naturalist·Evie A WietersBruce A Menge
Aug 11, 2011·The American Naturalist·David Tilman
Aug 19, 2008·The American Naturalist·Nicolas Mouquet, Michel Loreau
Feb 25, 2005·The American Naturalist·William G Wilson, Peter A Abrams
Mar 26, 2005·The American Naturalist·Paul R Armsworth, Joan E Roughgarden
Feb 3, 2007·The American Naturalist·Peter A AbramsVlastimil Krivan
Jul 15, 2003·The American Naturalist·Jamie M Kneitel, Thomas E Miller
Nov 18, 2003·The American Naturalist·Nicolas Mouquet, Michel Loreau
Jan 5, 2013·Theoretical Population Biology·Andrea Mathias, Peter Chesson
Jan 24, 2012·Journal of Theoretical Biology·Kenta Suzuki, Takehito Yoshida
Aug 20, 2015·The Quarterly Review of Biology·Eric DesjardinsAntoine C Dussault
Oct 25, 2008·Trends in Ecology & Evolution·Luke G BarrettCeleste C Linde
Oct 11, 2008·Journal of Theoretical Biology·Paolo D'OdoricoManuel T Lerdau

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