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Parasite effects on receivers in animal communication: Hidden impacts on behavior, ecology, and evolution

Proceedings of the National Academy of Sciences of the United States of America, ISSN: 1091-6490, Vol: 120, Issue: 30, Page: e2300186120
2023
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  • 19
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Research on Science Described by a Researcher at Oklahoma State University (Parasite effects on receivers in animal communication: Hidden impacts on behavior, ecology, and evolution)

2023 AUG 01 (NewsRx) -- By a News Reporter-Staff News Editor at NewsRx Science Daily -- Data detailed on science have been presented. According to

Article Description

Parasites exert a profound effect on biological processes. In animal communication, parasite effects on signalers are well-known drivers of the evolution of communication systems. Receiver behavior is also likely to be altered when they are parasitized or at risk of parasitism, but these effects have received much less attention. Here, we present a broad framework for understanding the consequences of parasitism on receivers for behavioral, ecological, and evolutionary processes. First, we outline the different kinds of effects parasites can have on receivers, including effects on signal processing from the many parasites that inhabit, occlude, or damage the sensory periphery and the central nervous system or that affect physiological processes that support these organs, and effects on receiver response strategies. We then demonstrate how understanding parasite effects on receivers could answer important questions about the mechanistic causes and functional consequences of variation in animal communication systems. Variation in parasitism levels is a likely source of among-individual differences in response to signals, which can affect receiver fitness and, through effects on signaler fitness, impact population levels of signal variability. The prevalence of parasitic effects on specific sensory organs may be an important selective force for the evolution of elaborate and multimodal signals. Finally, host–parasite coevolution across heterogeneous landscapes will generate geographic variation in communication systems, which could ultimately lead to evolutionary divergence. We discuss applications of experimental techniques to manipulate parasitism levels and point the way forward by calling for integrative research collaborations between parasitologists, neurobiologists, and behavioral and evolutionary ecologists.

Bibliographic Details

Michael S. Reichert; Matthew G. Bolek; Elizabeth A. McCullagh

Proceedings of the National Academy of Sciences

Multidisciplinary

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