In:
PLOS ONE, Public Library of Science (PLoS), Vol. 16, No. 11 ( 2021-11-24), p. e0259299-
Kurzfassung:
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 km 2 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 is that threatened species are generally more widespread than previously estimated.
Materialart:
Online-Ressource
ISSN:
1932-6203
DOI:
10.1371/journal.pone.0259299
DOI:
10.1371/journal.pone.0259299.g001
DOI:
10.1371/journal.pone.0259299.g002
DOI:
10.1371/journal.pone.0259299.g003
DOI:
10.1371/journal.pone.0259299.g004
DOI:
10.1371/journal.pone.0259299.g005
DOI:
10.1371/journal.pone.0259299.g006
DOI:
10.1371/journal.pone.0259299.g007
DOI:
10.1371/journal.pone.0259299.g008
DOI:
10.1371/journal.pone.0259299.g009
DOI:
10.1371/journal.pone.0259299.s001
DOI:
10.1371/journal.pone.0259299.s002
DOI:
10.1371/journal.pone.0259299.s003
DOI:
10.1371/journal.pone.0259299.s004
DOI:
10.1371/journal.pone.0259299.s005
DOI:
10.1371/journal.pone.0259299.s006
DOI:
10.1371/journal.pone.0259299.r001
DOI:
10.1371/journal.pone.0259299.r002
DOI:
10.1371/journal.pone.0259299.r003
DOI:
10.1371/journal.pone.0259299.r004
Sprache:
Englisch
Verlag:
Public Library of Science (PLoS)
Publikationsdatum:
2021
ZDB Id:
2267670-3
