The Importance of Sleep in Animals and Its Potential Vulnerability to Climate Change.
Level 5 - mechanism / opinion, no new human data
Narrative review of ecological mechanisms and animal physiology without systematic review methodology or primary clinical data.
PubMed 41218279 · doi:10.1146/annurev-animal-030424-072112
What was done
This narrative review synthesized literature on the evolutionary role of sleep across animal taxa and examined how climate change factors (rising temperatures, altered precipitation patterns, and extreme weather) may disrupt sleep across polar, tropical, dry, marine, and coastal regions.
What was found
The abstract reports no quantitative data or statistical effect sizes. It qualitatively describes region-specific vulnerabilities in animal sleep and discusses theoretical cascading impacts on species interactions, population dynamics, and ecosystem function.
Why it matters
It highlights animal sleep disruption as an underappreciated pathway through which climate change can impair wildlife fitness and ecosystem stability.
Limits
The abstract contains no empirical data, sample sizes, or systematic review protocol. The discussed effects remain largely conceptual, constrained by existing technological limitations in measuring sleep in free-living wild animals.
Cited by
- supports Every animal species scientifically studied to date has been found to exhibit sleep.