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Batch-produced, GIS-informed range maps for birds based on provenanced, crowdsourced data inform conservation assessments

Citation

Huang, RM and Medina, W and Brooks, TM and Butchart, SHM and Fitzpatrick, JW and Hermes, C and Jenkins, CN and Johnston, A and Lebbin, DJ and Li, BV and Ocampo-Penuela, N and Parr, M and Wheatley, H and Wiedenfeld, DA and Wood, C and Pimm, SL, Batch-produced, GIS-informed range maps for birds based on provenanced, crowdsourced data inform conservation assessments, PLoS ONE, 16, (11) Article e0259299. ISSN 1932-6203 (2021) [Refereed Article]


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DOI: doi:10.1371/journal.pone.0259299

Abstract

Accurate maps of species ranges are essential to inform conservation, but time-consuming to produce and update. Given the pace of change of knowledge about species distributions and shifts in ranges under climate change and land use, a need exists for timely mapping approaches that enable batch processing employing widely available data. We develop a systematic approach of batch-processing range maps and derived Area of Habitat maps for terrestrial bird species with published ranges below 125,000 km2 in Central and South America. (Area of Habitat is the habitat available to a species within its range.) We combine existing range maps with the rapidly expanding crowd-sourced eBird data of presences and absences from frequently surveyed locations, plus readily accessible, high resolution satellite data on forest cover and elevation to map the Area of Habitat available to each species. Users can interrogate the maps produced to see details of the observations that contributed to the ranges. Previous estimates of Areas of Habitat were constrained within the published ranges and thus were, by definition, smaller-typically about 30%. This reflects how little habitat within suitable elevation ranges exists within the published ranges. Our results show that on average, Areas of Habitat are 12% larger than published ranges, reflecting the often considerable extent that eBird records expand the known distributions of species. Interestingly, there are substantial differences between threatened and non-threatened species. Some 40% of Critically Endangered, 43% of Endangered, and 55% of Vulnerable species have Areas of Habitat larger than their published ranges, compared with 31% for Near Threatened and Least Concern species. The important finding for conservation i 1000 s that threatened species are generally more widespread than previously estimated.

Item Details

Item Type:Refereed Article
Research Division:Environmental Sciences
Research Group:Environmental management
Research Field:Conservation and biodiversity
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the environmental sciences
UTAS Author:Brooks, TM (Dr Thomas Brooks)
ID Code:152006
Year Published:2021
Web of Science® Times Cited:1
Deposited By:Plant Science
Deposited On:2022-08-09
Last Modified:2022-08-09
Downloads:0

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