My focus is to establish the extent ( in measurement; meters) of riparian zone significant width for managing amphibian populations in protected and managed forests.
Here are a couple of papers from Western Canada. One from Coastal BC and the other from the boreal mixedwood region of Northwest Alberta. Should be lots of relevant work cited within as well.
Matt
Richardson, J. S., Naiman, R. J., & Bisson, P. A. (2012). How did fixed-width buffers become standard practice for protecting freshwaters and their riparian areas from forest harvest practices?.
Hannon, S.J., Paszkowski, C.A., Boutin, S., DeGroot, J., Macdonald, E., Wheatley, M., Eaton, B., 2002. Influence of varying riparian buffer strip widths on abundance and species composition of amphibians, small mammals and songbirds in the boreal mixedwood forest of Alberta. Can. J. For. Res. 32, 1784–1800
An important indicator of landscape connectivity is that a corridor should be wide enough to accommodate an upland vegetation zone to control and filter run-off (Cook 2002). Land Use and Urban Planning 58 (269-280).