Apr 30, 2020

The Past, Present and Future of Elephant Landscapes in Asia

BioRxiv : the Preprint Server for Biology
Shermin de SilvaP. Leimgruber

Abstract

Habitat loss is a leading cause of species declines worldwide (1, 2). Using the Land Use Harmonization dataset (3) as the basis for ecological niche modelling, we quantify modelled changes in global suitable habitat over the past three centuries for Asian elephants, a megaherbivore representing diverse biomes. Between 1700-2015 over 60% of habitat suitable for elephants was lost, while average patch size declined 84-86%, and the largest patch decreased from 45% to 5%. Over half of the currently inhabited range is considered unsuitable for elephants, whereas suitable habitat is predicted to decline further from 2015-2099 across all six scenarios representing a range of emissions pathways and socioeconomic narratives. However, results vary by region and scenario in a non-linear manner, indicating that socioeconomic outcomes are as important as emissions pathways for the future of these habitats. Lao PDR, Thailand and Myanmar currently have lower elephant populations relative to the amount of available habitat. On the other hand, continued losses in densely settled areas such as India and Sri Lanka are expected to exacerbate human-elephant conflict. Only a few regions, notably peninsular Malaysia, Borneo, and Yunnan province, Chin...Continue Reading

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Mentioned in this Paper

Genome
Microsatellite Instability
POLE
HLA Antigens
Whole Exome Sequencing
Etiology
POLE gene
Microsatellite Instability Analysis (Eg, Hereditary Non-polyposis Colorectal Cancer, Lynch Syndrome) of Markers for Mismatch Repair Deficiency (Eg, BAT25, BAT26), Includes Comparison of Neoplastic and Normal Tissue, If Performed
HLA Typing
Microsatellite Instability Diagnostic Test

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