Fluctuating fortunes: genomes and habitat reconstructions reveal global climate-mediated changes in bats' genetic diversity

Chattopadhyay, Balaji and Garg, Kritika M and Ray, Rajasri and Rheindt, Frank E (2019) Fluctuating fortunes: genomes and habitat reconstructions reveal global climate-mediated changes in bats' genetic diversity. In: PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES, 286 (1911).

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Abstract

Over the last approximately 2.6 Myr, Earth's climate has been dominated by cyclical ice ages that have profoundly affected species' population sites, but the impact of impending anthropogenic climate change on species' extinction potential remains a worrying problem. We investigated 11 bat species from different taxonomic, ecological and geographical backgrounds using combined information from palaeoclimatic habitat reconstructions and genomes to analyse biotic impacts of historic climate change. We discover tightly correlated fluctuations between species' historic distribution and effective population size, identity trugivores as particularly susceptible to global warming, pinpoint large insectivores as having overall low effective population size and flag the onset of the Holocene (approx. 10-12 000 years ago) as the period with the generally lowest effective population sites across the last approximately 1 Myr. Our study show's that combining genomic and palaeoclimatological approaches reveals effects of climatic shifts on genetic diversity and may help predict impacts of future climate change.

Item Type:	Journal Article
Publication:	PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
Publisher:	ROYAL SOC
Additional Information:	copyright for this article belongs to ROYAL SOC
Keywords:	climate change; global warming; pairwise sequentially Markovian coalescent; ecological niche model; demographic history; Chiroptera
Department/Centre:	Division of Biological Sciences > Centre for Ecological Sciences
Date Deposited:	30 Oct 2019 10:28
Last Modified:	30 Oct 2019 10:28
URI:	http://eprints.iisc.ac.in/id/eprint/63716

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