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Title: Integrating disparate occurrence reports to map data-poor species ranges and occupancy : a case study of the Vulnerable bearded pig Sus barbatus
Authors: Ke, Alison
Luskin, Matthew Scott
Keywords: Engineering::Environmental engineering
Issue Date: 2017
Source: Ke, A., & Luskin, M. S. (2019). Integrating disparate occurrence reports to map data-poor species ranges and occupancy : a case study of the Vulnerable bearded pig Sus barbatus. Oryx, 53(2), 377-387. doi:10.1017/s0030605317000382
Journal: ORYX
Abstract: Monitoring species ranges and suitable and occupied habitat are core components of biogeography, ecology and conservation biology, but it is difficult to do for rare, cryptic, wide-ranging, migratory or nomadic species. We present a transparent and objective process to combine multiple types of locality data (peer-reviewed and grey literature, museum collections, camera-trap inventories, and citizen science reports). We illustrate the advantages of this pooled approach by assessing change in range and patch occupancy for a data-poor and threatened nomadic keystone species, the bearded pig Sus barbatus, in Borneo, Sumatra and Peninsular Malaysia. We used a collated set of all occurrence observations (n = 240) to create minimum convex polygons for forested habitats for two time periods. We evaluated confidence that a patch was truly occupied by the overlap among data types. We found that 62% of the forest habitat of the Sumatran bearded pig S. barbatus oi was lost during 1990–2010 and that its range contracted by 76%; the Bornean bearded pig S. barbatus barbatus lost 23 and 24% of its forest habitat and range, respectively, and in Peninsular Malaysia the 93% range collapse of this subspecies during 1985–2010 is more severe than the 33% habitat loss alone would suggest. We conclude that integrating data types can improve mapping of the ranges of many data-poor species.
ISSN: 0030-6053
DOI: 10.1017/S0030605317000382
Rights: © 2017 Fauna & Flora International. All rights reserved. This paper was published by Cambridge University Press in ORYX and is made available with permission of Fauna & Flora International.
Fulltext Permission: open
Fulltext Availability: With Fulltext
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