| moisture as a factor influencing the distributions of two species of terrestrial salamanders. | plethodon richmondi shenandoah occurs in at least three geographically isolated talus slopes in shenandoah national park, virginia, u.s.a., each surrounded by a continuous population of plethodon c. cinereus in the soil outside the talus. distributions are contiguous but largely non-overlapping. the talus presents a much drier habitat than does the surrounding soil. four experiments were designed to test the responses of the two species to moisture and substrate. although shenandoah lives in a h ... | 1971 | 28310969 |
| competitive exclusion as a factor influencing the distributions of two species of terrestrial salamanders. | the salamander plethodon richmondi shenandoah is restricted to areas of talus on hawksbill mountain, shenandoah national park, virginia, while p. cinereus inhabits the soil outside the talus. to test the hypothesis that the former species is excluded from the soil by the latter species, three enclosures were constructed in each of four habitats: (i) in talus consisting only of bare rocks, (ii) in talus where soil has infiltrated between but not under rocks, (iii) in isolated pockets of shallow s ... | 1971 | 28973807 |
| environmental gradients in old-growth appalachian forest predict fine-scale distribution, co-occurrence, and density of woodland salamanders. | woodland salamanders are among the most abundant vertebrate animals in temperate deciduous forests of eastern north america. because of their abundance, woodland salamanders are responsible for the transformation of nutrients and translocation of energy between highly disparate levels of trophic organization: detrital food webs and high-order predators. however, the spatial extent of woodland salamanders' role in the ecosystem is likely contingent upon the distribution of their biomass throughou ... | 2018 | 30619595 |