Batrachoseps wrighti

Habitat includes moist Douglas-fir and mixed maple, hemlock, and red-cedar woodlands. This species occurs most abundantly in well-decayed pieces of coarse woody debris and thus is dependent on conditions that are most typical of mature and old-growth stands (Bury and Corn 1988, Gilbert and Allwine 1991, Vesely 1999). It is rare or at least difficult to detect in recent clearcuts (Bury and Corn 1988, Vesely 1999). (Bury and Corn (1988) found that fewer numbers occurred in logged than in mature forests. In time-constrained searches, Gilbert and Allwine (1991) found an average of 1.26 individuals per stand in old growth, 2.10 in mature, and 2.1 in young growth (naturally regenerated forest); however, logs of all decay-classes were abundant in all of their study areas. Vesely (1999) found that Oregon slender salamanders were most numerous in closed-canopy conditions and on east- and west-facing aspects than in open-canopy situations and north- and south-facing slopes. This species also occurs under moss-covered rocks in the Columbia River Gorge and in stabilized talus and lava flows elsewhere (Nussbaum et al. 1983; Storm, in Jones et al. 2005). Individuals can be found under rocks, logs, bark, and moss, and in rotting logs, stumps, holes and crevices in the ground, and termite burrows. Nests have been found under bark and in rotten logs (Nussbaum et al. 1983).

Terrestrial breeder; no aquatic larval stage. Females with eggs have been found in April, May, and June (Nussbaum et al. 1983).