Do trade-offs govern plant species’ responses to different global change treatments?

UNCG Author/Contributor (non-UNCG co-authors, if there are any, appear on document)
Sally E. Koerner, Assistant Professor (Creator)
The University of North Carolina at Greensboro (UNCG )
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Abstract: Plants are subject to trade-offs among growth strategies such that adaptations for optimal growthin one condition can preclude optimal growth in another. Thus, we predicted that a plant speciesthat responds positively to one global change treatment would be less likely than average torespond positively to another treatment, particularly for pairs of treatments that favor distinct traits.We examined plant species’ abundances in 39 global change experiments manipulating two ormore of the following: CO2, nitrogen, phosphorus, water, temperature, or disturbance. Overall, thedirectional response of a species to one treatment was 13% more likely than expected to opposeits response to a another single-factor treatment. This tendency was detectable across the globaldata set, but held little predictive power for individual treatment combinations or within individualexperiments. Although trade-offs in the ability to respond to different global change treatmentsexert discernible global effects, other forces obscure their influence in local communities.

Additional Information

Ecology 103(6)
Language: English
Date: 2021
data synthesis, elevated CO2, global change experiments, herbaceous plants , irrigation, nitrogen, resource strategies, warming

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