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Non-native ungulates indirectly impact foliar arthropods but not soil function

  • Mariano A. Rodriguez-CabalEmail author
  • M. Noelia Barrios-Garcia
  • Christopher J. Greyson-Gaito
  • Heather L. Slinn
  • M. Paz Tapella
  • Agustín Vitali
  • Gregory M. Crutsinger
Original Paper

Abstract

One of the greatest challenges in contemporary ecology is to understand how the homogenization of biodiversity at all levels of organization and spatial scales will influence the assembly of communities and the functioning of ecosystems. Such homogenization can occur through the gain of non-native species and the loss of native species. Here, we show that by disrupting a keystone mutualistic interaction, non-native ungulates indirectly impact foliar arthropod abundance and richness, but not soil properties (soil respiration, temperature and humidity), in a temperate forest of Patagonia. The results of this study show that the gain of non-native ungulates and the loss of a key interaction can trigger unnoticed cascading effects. Our findings highlight the importance of assessing biodiversity not only as the sum of different components but also through the direct and indirect interactions among them.

Keywords

Arthropod community Indirect effects Introduced herbivores Keystone interactions Soil microbes 

Notes

Acknowledgements

We thank staff of Nahuel Huapi National Park and Los Arrayanes National Park, D. Mujica and C. Chehebar for logistic support and permission to carry out fieldwork. We also thank the Editor and three anonymous reviewers for useful comments and suggestions. Special thanks go to Ezequiel Rodriguez-Cabal and Greg Crutsinger who made the drawings. This research was supported with a grant from “Agencia Nacional de Promoción Científica y Tecnológica” of Argentina (PICT 2014-2484) to MARC.

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Mariano A. Rodriguez-Cabal
    • 1
    Email author
  • M. Noelia Barrios-Garcia
    • 2
  • Christopher J. Greyson-Gaito
    • 3
  • Heather L. Slinn
    • 3
  • M. Paz Tapella
    • 4
  • Agustín Vitali
    • 1
  • Gregory M. Crutsinger
    • 5
  1. 1.Grupo de Ecología de Invasiones, INIBIOMA - CONICETUniversidad Nacional Del ComahueBarilocheArgentina
  2. 2.CONICET, CENAC - APNBarilocheArgentina
  3. 3.Department of Integrative BiologyUniversity of GuelphGuelphCanada
  4. 4.Facultad de Ciencias Exactas, Físicas y NaturalesUniversidad Nacional de CórdobaCórdobaArgentina
  5. 5.Scholar FarmsEl CerritoUSA

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