This paper presents the results of a bioclimatic and spatial analysis
of reptiles and amphibians native to Ontario. Using a large database o
f known observations and a new spatially explicit climate model of the
entire province, climatic domains of 43 species and subspecies were d
erived and subsequently mapped. A useful aspect of the analysis is tha
t it not only explicitly summarizes what is currently known about spec
ies occurrences, it also identifies those parts of the province which
have a similar climate. This will assist in designing field survey and
monitoring programs and ecological restoration activities. By overlay
ing each of the 43 maps in a Geographic Information System, regions of
the province with potentially large species gradients were identified
. These areas are currently the focus of ongoing field studies.