Biodiversity effects on ecosystem functioning respond unimodally to environmental stress

Jan Baert, Nico Eisenhauer, C. JANSSEN, Frédérik De Laender

Research output: Contribution to journalArticle

Abstract

Understanding how biodiversity (B) affects ecosystem functioning (EF) is essential for assessing the consequences of ongoing biodiversity changes. An increasing number of studies, however, shows that environmental conditions affect the shape of BEF relationships. Here, we first use a game-theoretic community model to reveal that a unimodal response of the BEF slope can be expected along
environmental stress gradients, but also that the ecological mechanisms underlying this response may vary depending on how stress affects species interactions. Next, we analyzed a global dataset of 44 experiments that crossed biodiversity with environmental conditions, confirming our main model predictions: the effect of biodiversity on ecosystem functioning is greater at intermediate levels of environmental stress, but this effect varies considerably among studies depending on the type of species interactions. Together, these results suggest that increases in stress from ongoing global environmental changes may amplify the consequences of future biodiversity changes.
LanguageEnglish
JournalEcology Letters
StatePublished - 2018

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environmental stress
biodiversity
ecosystems
ecosystem
environmental conditions
environmental factors
global change
environmental change
effect
prediction
experiment

Cite this

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title = "Biodiversity effects on ecosystem functioning respond unimodally to environmental stress",
abstract = "Understanding how biodiversity (B) affects ecosystem functioning (EF) is essential for assessing the consequences of ongoing biodiversity changes. An increasing number of studies, however, shows that environmental conditions affect the shape of BEF relationships. Here, we first use a game-theoretic community model to reveal that a unimodal response of the BEF slope can be expected along environmental stress gradients, but also that the ecological mechanisms underlying this response may vary depending on how stress affects species interactions. Next, we analyzed a global dataset of 44 experiments that crossed biodiversity with environmental conditions, confirming our main model predictions: the effect of biodiversity on ecosystem functioning is greater at intermediate levels of environmental stress, but this effect varies considerably among studies depending on the type of species interactions. Together, these results suggest that increases in stress from ongoing global environmental changes may amplify the consequences of future biodiversity changes.",
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Biodiversity effects on ecosystem functioning respond unimodally to environmental stress. / Baert, Jan; Eisenhauer, Nico; JANSSEN, C.; De Laender, Frédérik.

In: Ecology Letters, 2018.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Biodiversity effects on ecosystem functioning respond unimodally to environmental stress

AU - Baert,Jan

AU - Eisenhauer,Nico

AU - JANSSEN,C.

AU - De Laender,Frédérik

PY - 2018

Y1 - 2018

N2 - Understanding how biodiversity (B) affects ecosystem functioning (EF) is essential for assessing the consequences of ongoing biodiversity changes. An increasing number of studies, however, shows that environmental conditions affect the shape of BEF relationships. Here, we first use a game-theoretic community model to reveal that a unimodal response of the BEF slope can be expected along environmental stress gradients, but also that the ecological mechanisms underlying this response may vary depending on how stress affects species interactions. Next, we analyzed a global dataset of 44 experiments that crossed biodiversity with environmental conditions, confirming our main model predictions: the effect of biodiversity on ecosystem functioning is greater at intermediate levels of environmental stress, but this effect varies considerably among studies depending on the type of species interactions. Together, these results suggest that increases in stress from ongoing global environmental changes may amplify the consequences of future biodiversity changes.

AB - Understanding how biodiversity (B) affects ecosystem functioning (EF) is essential for assessing the consequences of ongoing biodiversity changes. An increasing number of studies, however, shows that environmental conditions affect the shape of BEF relationships. Here, we first use a game-theoretic community model to reveal that a unimodal response of the BEF slope can be expected along environmental stress gradients, but also that the ecological mechanisms underlying this response may vary depending on how stress affects species interactions. Next, we analyzed a global dataset of 44 experiments that crossed biodiversity with environmental conditions, confirming our main model predictions: the effect of biodiversity on ecosystem functioning is greater at intermediate levels of environmental stress, but this effect varies considerably among studies depending on the type of species interactions. Together, these results suggest that increases in stress from ongoing global environmental changes may amplify the consequences of future biodiversity changes.

M3 - Article

JO - Ecology Letters

T2 - Ecology Letters

JF - Ecology Letters

SN - 1461-023X

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