The devil is in the detail: Nonadditive and context-dependent plant population responses to increasing temperature and precipitation

Global Change Biology
Joachim P TöpperVigdis Vandvik

Abstract

In climate change ecology, simplistic research approaches may yield unrealistically simplistic answers to often more complicated problems. In particular, the complexity of vegetation responses to global climate change begs a better understanding of the impacts of concomitant changes in several climatic drivers, how these impacts vary across different climatic contexts, and of the demographic processes underlying population changes. Using a replicated, factorial, whole-community transplant experiment, we investigated regional variation in demographic responses of plant populations to increased temperature and/or precipitation. Across four perennial forb species and 12 sites, we found strong responses to both temperature and precipitation change. Changes in population growth rates were mainly due to changes in survival and clonality. In three of the four study species, the combined increase in temperature and precipitation reflected nonadditive, antagonistic interactions of the single climatic changes for population growth rate and survival, while the interactions were additive and synergistic for clonality. This disparity affects the persistence of genotypes, but also suggests that the mechanisms behind the responses of the vita...Continue Reading

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Aug 23, 2016·Frontiers in Plant Science·Kirk L Barnett, Sarah L Facey

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Citations

Sep 2, 2020·Proceedings of the National Academy of Sciences of the United States of America·Vigdis VandvikDeborah E Goldberg
Jan 30, 2021·Global Change Biology·Joshua S LynnVigdis Vandvik
Jun 4, 2021·Frontiers in Plant Science·Zuzana MünzbergováVěroslava Hadincová
Jun 27, 2021·Ecology Letters·Joshua S LynnJennifer A Rudgers

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