May 4, 2020

A data-driven geospatial workflow to improve mapping species distributions and assessing extinction risk under the IUCN Red List.

BioRxiv : the Preprint Server for Biology
Ruben Dario PalacioA. P. Jacobson

Abstract

Species distribution maps are essential for assessing extinction risk and guiding conservation efforts. Here, we developed a data-driven, reproducible geospatial workflow to map species distributions and evaluate their conservation status consistent with the guidelines and criteria of the IUCN Red List. Our workflow follows five automated steps to refine the distribution of a species starting from its Extent of Occurrence (EOO) to Area of Habitat (AOH) within the species range. The ranges are produced with an Inverse Distance Weighted (IDW) interpolation procedure, using presence and absence points derived from primary biodiversity data. As a case-study, we mapped the distribution of 2,273 bird species in the Americas, 55% of all terrestrial birds found in the region. We then compared our produced species ranges to the expert-drawn IUCN/BirdLife range maps and conducted a preliminary IUCN extinction risk assessment based on criterion B (Geographic Range). We found that our workflow generated ranges with fewer errors of omission, commission, and a better overall accuracy within each species EOO. The spatial overlap between both datasets was low (28%) and the expert-drawn range maps were consistently larger due to errors of commi...Continue Reading

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Mentioned in this Paper

Calcinus elegans
Cyartonema elegans
Coleonyx elegans
Abnormal Degeneration
Cestrum elegans
Clarkia unguiculata
Criminal Law
Clathrulina elegans
Cardioglossa elegans
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