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Behavioral Plasticity Allows Short‐Term Adjustment to a Novel Environment
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Journal Article
Behavioral Plasticity Allows Short‐Term Adjustment to a Novel Environment
2010
Overview
Many species are currently experiencing anthropogenically driven environmental changes. Among these changes, increasing noise levels are specifically a problem for species relying on acoustic communication. Recent evidence suggests that some species adjust their acoustic signals to man‐made noise. However, it is unknown whether these changes occur through short‐term and reversible adjustments by behavioral plasticity or through long‐term adaptations by evolutionary change. Using behavioral observations and playback experiments, we show that male reed buntings (Emberiza schoeniclus) adjusted their songs immediately, singing at a higher minimum frequency and at a lower rate when noise levels were high. Our data showed that these changes in singing behavior were short‐term adjustments of signal characteristics resulting from behavioral plasticity, rather than a long‐term adaptation. However, more males remained unpaired at a noisy location than at a quiet location throughout the breeding season. Thus, phenotypic plasticity enables individuals to respond to environmental changes, but whether these short‐term adjustments are beneficial remains to be seen.
Publisher
The University of Chicago Press,University of Chicago Press,University of Chicago, acting through its Press
