By William H. Burt
Descriptions of 380 species comprise dimension, weight, colour, markings, variety of tooth, habitat, behavior, and comparisons with related species. great colour illustrations and line drawings convey 230 animals. variety maps in addition to photographs of skulls and drawings of animal tracks, dens, nests, and burrows around out the wealth of knowledge given in "the top common consultant to all of North America" (Peter Warshall, complete Earth Review).
Read or Download A Field Guide to Mammals: North America north of Mexico (Peterson Field Guides) PDF
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Additional resources for A Field Guide to Mammals: North America north of Mexico (Peterson Field Guides)
This transition has an abrupt change in vegetation structure, accompanied by a turnover of small mammal species, in the Andes (Cadle and Patton 1988), the Philippines (Heaney et al. 1989), Madagascar (Ryan et al. ), New Guinea (Flannery and Seri 1975), and probably on any mountain large enough to support a montane fauna. This level is usually known as lower montane forest. , under moss) while eliminating the substrate for lowland foraging modes. A thousand meters higher, the moss layer becomes extremely thick on trunks and branches, creating yet another, more arboreal, foraging substrate.
0847–0858: She forages, eating fruit. 0900: She goes back and rests on the same spot. 0910: She grooms several parts of body and tail, then curls up and rests again. 0913: She gets up and forages, then leaves the tree at 0926. The alternation of short feeding bouts with short resting bouts was characteristic of T. minor whenever I watched them feeding on any species of fruit. 2), so that it seems that the animals are filling up with fruit repeatedly, as often and quickly as it can be transited through the digestive system.
0 m. The sixty-eight recorded observations of plain treeshrews show them to be intensely terrestrial. 5 m, but, significantly, all three were foraging for arthropods, once up to 8 m. Thus, although it is rare, T. longipes forages to a small degree on living vegetation, especially trunks and vine tangles just above the ground. This species was the most cryptic, nervous, and wary of all those studied, and it was rarely possible to watch them for longer than seconds, except from blinds at artificial bait sites.