By William H. Burt
Descriptions of 380 species comprise dimension, weight, colour, markings, variety of tooth, habitat, conduct, and comparisons with comparable species. incredible colour illustrations and line drawings express 230 animals. diversity maps in addition to images of skulls and drawings of animal tracks, dens, nests, and burrows around out the wealth of knowledge given in "the most sensible common consultant to all of North America" (Peter Warshall, entire Earth Review).
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Additional resources for A Field Guide to Mammals: North America north of Mexico (Peterson Field Guides)
As with other forms of behavior, it is useful to specify when the beneﬁts of the behavior exceed its costs, and therefore when it is favored by natural selection. Although one does not usually need to specify the genetic mechanism for such an analysis to be productive (Grafen 1991), it is also important to consider the decision rules used by the organism. The beneﬁts (B) of male infanticide are the time gained relative to not committing infanticide, corrected for the change in probability of paternity.
1990 Zunino et al. 1985; Rumiz 1990 Galetti et al. 1994 Clarke et al. 1994 Crockett & Sekulic 1984 Izawa & Lozano 1991 Agoramoorthy & Rudran 1995 Kinnaird 1990 Andelman 1987 Struhsaker 1977 Galat-Luong & Galat 1979 Butynski 1982; Fairgrieve 1995 2 Wright 1995 2 1 1 1 1 or 2 4 Contexta Hood 1994 Wild (source of report) Yes Yes Attempts Yes Böer & Sommer 1992 (No) (Yes) Attempts No No No Infanticide observed? Busse & Gordon 1983; Böer & Sommer 1992 Fairbanks & McGuire 1987 (Roberts 1994) (Stanger et al.
N N N N N N Y N Y Y N Y Cercopithecus aethiops Cercopithecus ascanius Cercopithecus campbelli Cercopithecus mitis Cercocebus galeritus Cercocebus torquatus (Mirza coquereli) Lemur catta Eulemur fulvus Eulemur macaco Varecia variegata Propithecus diadema (Tarsius bancanus) Cebus capucinus Cebus olivaceus Alouatta caraya Alouatta fusca Alouatta palliata Alouatta seniculus Species 2 3, 7 1 1 1, 3 2, 3 Fedigan 1993; Rose 1994 Valderrama et al. 1990 Zunino et al. 1985; Rumiz 1990 Galetti et al. 1994 Clarke et al.