Quantifying historical changes in habitat availability for endangered species: use of pixel- and object-based remote sensing

Wiley-Blackwell Publishing, Inc
Publication Type:
Journal Article
Journal Of Applied Ecology, 2009, 46 (3), pp. 544 - 553
Issue Date:
Full metadata record
Files in This Item:
Filename Description Size
Thumbnail2011003968OK.pdfPublished Version651.83 kB
Adobe PDF
Establishing medium- to long-term trends in habitat availability for endangered species is important for determining the causes of historical population declines and for designing effective management plans. For some animal species, relative habitat availability can be estimated using time series of aerial photographs, but the limited information in old black-and-white images makes it challenging to estimate accurately at large spatial scales. Australia's most endangered snake, the broad-headed snake Hoplocephalus bungaroides, requires unshaded, exfoliated sandstone rocks for shelter. Using digitized aerial photographs of four sites from 1941 and 1971, and a Quickbird satellite image from 2006, we estimated the trend in habitat availability for a well-studied population of H. bungaroides in New South Wales. We did this using both traditional, pixel-based classifications and a more recently developed object-based approach.
Please use this identifier to cite or link to this item: