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Title: Warming alters energetic structure and function but not resilience of soil food webs

Journal Article · · Nature Climate Change
ORCiD logo [1]; ORCiD logo [2];  [3]; ORCiD logo [4];  [5];  [6];  [7];  [4];  [8]; ORCiD logo [3]
  1. Univ. of Minnesota, Minneapolis, MN (United States); Albert-Ludwigs-Univ. Freiburg, Freiburg (Germany)
  2. German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig (German); Leipzig Univ., Leipzig (Germany); Univ. of Muenster, Muenster (Germany)
  3. German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig (German); Leipzig Univ., Leipzig (Germany)
  4. Univ. of Minnesota, Minneapolis, MN (United States); German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig (German)
  5. National Inst. of Research and Development for Biological Sciences, Cluj-Napoca (Romania). Inst. of Biological Research
  6. Univ. of Minnesota, Minneapolis, MN (United States); Western Sydney Univ., Penrith, NSW (Australia)
  7. Univ. of Minnesota, Minneapolis, MN (United States); Smithsonian Environmental Research Center, Edgewater, MD (United States)
  8. Univ. of Minnesota, Minneapolis, MN (United States)

Climate warming is predicted to alter the structure, stability, and functioning of food webs. Yet, despite the importance of soil food webs for energy and nutrient turnover in terrestrial ecosystems, the effects of warming on these food webs—particularly in combination with other global change drivers—are largely unknown. Here, we present results from two complementary field experiments that test the interactive effects of warming with forest canopy disturbance and drought on energy flux in boreal–temperate ecotonal forest soil food webs. The first experiment applied a simultaneous above- and belowground warming treatment (ambient, +1.7 °C, +3.4 °C) to closed-canopy and recently clear-cut forest, simulating common forest disturbance6. The second experiment crossed warming with a summer drought treatment (-40% rainfall) in the clear-cut habitats. We show that warming reduces energy flux to microbes, while forest canopy disturbance and drought facilitates warming-induced increases in energy flux to higher trophic levels and exacerbates the reduction in energy flux to microbes, respectively. Contrary to expectations, we find no change in whole-network resilience to perturbations, but significant losses in ecosystem functioning. Warming thus interacts with forest disturbance and drought, shaping the energetic structure of soil food webs and threatening the provisioning of multiple ecosystem functions in boreal–temperate ecotonal forests.

Research Organization:
Univ. of Minnesota, Minneapolis, MN (United States)
Sponsoring Organization:
USDOE; German Research Foundation (DFG)
Grant/Contract Number:
FG02-07ER64456; 677232
OSTI ID:
1546788
Journal Information:
Nature Climate Change, Vol. 7, Issue 12; ISSN 1758-678X
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 48 works
Citation information provided by
Web of Science

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Cited By (10)

Exotic earthworms maintain soil biodiversity by altering bottom-up effects of plants on the composition of soil microbial groups and nematode communities journal January 2019
A simple model predicts how warming simplifies wild food webs journal July 2019
Biodiversity of intertidal food webs in response to warming across latitudes journal February 2020
Horizontal and vertical diversity jointly shape food web stability against small and large perturbations journal May 2019
Climate change effects on plant-soil feedbacks and consequences for biodiversity and functioning of terrestrial ecosystems journal November 2019
Eco-Evolutionary Origins of Diverse Abundance, Biomass, and Trophic Structures in Food Webs journal February 2019
Biotic interactions, community assembly, and eco-evolutionary dynamics as drivers of long-term biodiversity–ecosystem functioning relationships journal October 2019
Biotic interactions, community assembly, and eco-evolutionary dynamics as drivers of long-term biodiversity–ecosystem functioning relationships text January 2019
A simple model predicts how warming simplifies wild food webs text January 2019
Complex soil food web enhances the association between N mineralization and soybean yield – a model study from long-term application of a conservation tillage system in a black soil of Northeast China journal March 2021