Rhythms of behavior: are the times changin'?. (February 2020)

• Record Type: Journal Article
• Authors: Häfker, N Sören; Tessmar-Raible, Kristin
• Is Part Of: Current opinion in neurobiology. Volume 60(2020)
• Page Start: 55
• Page End: 66
• Publication Date: 2020-02
• Subjects: Neurobiology -- Periodicals; 573.8
• DOI: 10.1016/j.conb.2019.10.005
• Languages: English
• ISSNs: 0959-4388

Abstract

Highlights: Animal behavioral rhythms are ubiquitous and have shaped ecology and evolution. Present and past adaptations to large scale ecological changes depend on the flexibility to occupy different timing niches. Human rhythmicity is mostly investigated on the diel scale, but seasonal and likely lunar rhythmicity exists. Rhythms with different periods interact to generate highly precise timing- with mechanisms unknown. Marine models are crucial to understand mechanisms, evolution and ecological meaning of especially non-circadian rhythms. Abstract : Animal life is rhythmic. Here we provide an overview of various rhythmic behaviors, connected environmental factors and endogenous mechanisms. We not only cover terrestrial species, but also highlight aquatic environments with typically complex interconnected rhythms. We further address diel, seasonal and potential lunar rhythms of humans. While we cannot be complete, we aim to emphasize three aspects: First, to raise awareness for the all-encompassing presence of behavioral rhythms and their importance in ecology and evolution. Second, to raise awareness how limited our mechanistic understanding is, besides analyses in a small set of model species. Finally, we discuss how anthropogenic effects can affect behavioral rhythmicity and how this might affect ecosystems in the future, as 'For the times they are a-changin''.