Distribution and habitat associations of the long-toed salamander (Ambystoma macrodactylum) in the Oldman River Drainage /

Southern Headwaters At Risk Project (SHARP) amphibian and western painted turtle (Chrysemys picta) surveys, 2003-2004 /

“…A number of amphibian surveys have previously been conducted in the SHARP area (e.g. Nelson et al 1995;Oseen et al 1995;Paton 2001;Pearson 2003). To further investigate current amphibian distributions, a series of field surveys were conducted in 2003 and 2004.…”

“…Call surveys were also completed at two additional historic plains spadefoot sites near Pincher Creek and Claresholm. Plains spadefoot call surveys were conducted following the methods described by Taylor and Downey (2003 Canada (2003), Pearson (2003), Snyder et al (2003) and Taylor and Smith (2003). Waterton Lakes National Park (WLNP) is not formally included in the SHARP area, however it is an integral component of the Crown of the Continent ecosystem and provides a relatively less disturbed land base with which to make comparisons.…”

Toward a new framework for restoring lost wildlife migrations

“…In recent decades, changes in climate, vegetation, biotic communities, and human influences have altered some migrations to the point of complete loss (Harris et al., 2009). Migrations may be lost due to population extirpation, as when the introduction of a predatory nonnative trout caused the local extinction of migratory long‐toed salamanders ( Ambystoma macrodactylum , Pearson et al., 2003). In other cases, a migration remains intact, but the migratory population is so depleted that it no longer supports related ecosystem functions—for example, when overhunting and habitat loss reduced migratory whooping cranes ( Grus americana ) to fewer than 15 individuals (Glenn et al., 1999).…”