Shifts in phenological distributions reshape interaction potential in natural communities

  • Authors: Carter, Shannon K.; Saenz, Daniel; Rudolf, Volker H. W.
  • Publication Year: 2018
  • Publication Series: Scientific Journal (JRNL)
  • Source: Ecology Letters
  • DOI: 10.1111/ele.13081

Abstract

Climate change has changed the phenologies of species worldwide, but it remains unclear how these phenological changes will affect species interactions and the structure of natural communities. Using a novel approach to analyse long-term data of 66 amphibian species pairs across eight communities, we demonstrate that phenological shifts can significantly alter the interaction potential of coexisting competitors. Importantly, these changes in interaction potential were mediated by non-uniform, species-specific shifts in entire phenological distributions and consequently could not be captured by metrics traditionally used to quantify phenological shifts. Ultimately, these non-uniform shifts in phenological distributions increased the interaction potential for 25% of species pairs (and did not reduce interaction potential for any species pair), altering temporal community structure and potentially increasing interspecific competition. These results demonstrate the potential of phenological shifts to reshape temporal structure of natural communities, emphasising the importance of considering entire phenological distributions of natural populations.

  • Citation: Carter, Shannon K.; Saenz, Daniel; Rudolf, Volker H.W. 2018. Shifts in phenological distributions reshape interaction potential in natural communities. Ecology Letters. 21(8): 1143-1151.
  • Keywords: Amphibians, climate change, interaction potential, phenology, species interactions, temporal overlap
  • Posted Date: August 21, 2018
  • Modified Date: September 4, 2018
  • Print Publications Are No Longer Available

    In an ongoing effort to be fiscally responsible, the Southern Research Station (SRS) will no longer produce and distribute hard copies of our publications. Many SRS publications are available at cost via the Government Printing Office (GPO). Electronic versions of publications may be downloaded, printed, and distributed.

    Publication Notes

    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
    • Our online publications are scanned and captured using Adobe Acrobat. During the capture process some typographical errors may occur. Please contact the SRS webmaster if you notice any errors which make this publication unusable.
    • To view this article, download the latest version of Adobe Acrobat Reader.