Global predation pressure redistribution under future climate change

Gustavo Q. Romero (), Thiago Gonçalves-Souza, Pavel Kratina, Nicholas A. C. Marino, William K. Petry, Thadeu Sobral-Souza and Tomas Roslin
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Gustavo Q. Romero: State University of Campinas
Thiago Gonçalves-Souza: Federal Rural University of Pernambuco
Pavel Kratina: Queen Mary University of London
Nicholas A. C. Marino: Universidade Federal do Rio de Janeiro
William K. Petry: Eidgenössische Technische Hochschule Zürich
Thadeu Sobral-Souza: Universidade Estadual Paulista
Tomas Roslin: Swedish University of Agricultural Sciences

Nature Climate Change, 2018, vol. 8, issue 12, 1087-1091

Abstract: Abstract How climate affects biotic interactions is a question of urgent concern1–3. Theory predicts that biotic interactions are stronger at lower latitudes4–6. However, the role of climate in governing these patterns is typically assumed, rather than explicitly tested. Here, we dissected the influence of climatic descriptors on predation pressure using data from a global experiment with model caterpillars. We then used projections of future climate change to predict shifts in predation pressure. Climate, particularly components of temperature, explained latitudinal and elevational patterns of predation better than latitude or elevation by themselves. Projected predation pressure was greater under higher temperatures and more stable climates. Increased climatic instability projected for the near future predicts a general decrease in predation pressure over time. By identifying the current climatic drivers of global patterns in a key biotic interaction, we show how shifts in these drivers could alter the functioning of terrestrial ecosystems and their associated services.

Date: 2018
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DOI: 10.1038/s41558-018-0347-y

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