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;J .> Appendix B SENSITIVE SPECIES The following list details the Sensitive species suspected of occurring on the Rio Grande National Forest. A ,preliminary literature search was conducted and the habitat requirements and some life history information is included, AMPHIBIANS AND FISH Boreal Toad (Bufo l1orea5 l1orea5) Found in wet or riparian ecosystems in the mountains of Colorado, primarily from 7,000 feet to over 11;B60 feet Require shallow pools or lake margins to deposit eggs in late Mayor early June. Transformation to adult animal takes two seasons at elevations over 9.000 feet, Toad populations are found in areas characterized by willow, bog birch, and shrubby cinquefoil. These sites are typical of boggy areas In Colorado, including marshes. lake margins. and beaver ponds. Boreal toads hibernate, often using natural .chambers' near small stream beds (possibly holes dug by gophers or other small mammals). These animals occupy distinct home ranges of varying size and the breeding males may be territorial. To date the only recent occurrences have been on the Creede District. However, historic records speak of the toads being found at Trujillo Meadows and A1amosa River Canyon, Northern Leopard Frog (Rana Eplen5) Typically inhabits the banks and shallow portions of permanent water (e.g., beaver ponds, lakes, streams), especially those having rooted aquatic vegetation. They are most frequently observed at the edge of the water but sometimes roam far from water on rainy nights. This species breeds in the shallow, nonflowing portions of permanent bodies of water and In seasonally flooded areas adjacent to or contiguous with permanent pools. Breeding pools typically contain vegetation, mats of algae, and fairly clear water. No known recent locations on the Forest, (<:2512 B.'