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Becoming nose-blind—Climate change impacts on chemical communication

Roggatz, Christina C.; Saha, Mahasweta; Blanchard, Solène; Schirrmacher, Paula; Fink, Patrick; Verheggen, François; Hardege, Jörg D.


Christina C. Roggatz

Mahasweta Saha

Solène Blanchard

Paula Schirrmacher

Patrick Fink

François Verheggen


Chemical communication via infochemicals plays a pivotal role in ecological interactions, allowing organisms to sense their environment, locate predators, food, habitats, or mates. A growing number of studies suggest that climate change-associated stressors can modify these chemically mediated interactions, causing info-disruption that scales up to the ecosystem level. However, our understanding of the underlying mechanisms is scarce. Evidenced by a range of examples, we illustrate in this opinion piece that climate change affects different realms in similar patterns, from molecular to ecosystem-wide levels. We assess the importance of different stressors for terrestrial, freshwater, and marine ecosystems and propose a systematic approach to address highlighted knowledge gaps and cross-disciplinary research avenues.


Roggatz, C. C., Saha, M., Blanchard, S., Schirrmacher, P., Fink, P., Verheggen, F., & Hardege, J. D. (2022). Becoming nose-blind—Climate change impacts on chemical communication. Global change biology,

Journal Article Type Commentary
Acceptance Date Mar 20, 2022
Online Publication Date May 16, 2022
Publication Date 2022
Deposit Date May 16, 2022
Journal Global Change Biology
Print ISSN 1354-1013
Electronic ISSN 1365-2486
Publisher Wiley
Peer Reviewed Peer Reviewed
Keywords Behavior; Chemoreception; Climate change stressor; Ecological interactions; Infochemicals; Ocean acidification; Semiochemicals; Sensory ecology
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