Distribution of mammals in Colorado Distribution of mammals in Colorado distributionofma31972arms Year: 1972 MONOGRAPH MUSEUM OF NATURAL HISTORY NO. 3 107 105 -1— 103 -1— 40 40 Fig. 1. Map of political boundaries within Colorado, showing names of the 63 counties. weights, since the sensitivity of the usual pounds-ounces scale is not comparable to that of a metric balance. Pregnant females have been excluded, and weights of immediately pre- or post-hibernating individuals have been avoided. All measurements reported, unless other- wise specified, are of morphological adults. Adulthood was
Distribution of mammals in Colorado Distribution of mammals in Colorado distributionofma31972arms Year: 1972 MONOGRAPH MUSEUM OF NATURAL HISTORY NO. 3 107 105 -1— 103 -1— 40 40 Fig. 1. Map of political boundaries within Colorado, showing names of the 63 counties. weights, since the sensitivity of the usual pounds-ounces scale is not comparable to that of a metric balance. Pregnant females have been excluded, and weights of immediately pre- or post-hibernating individuals have been avoided. All measurements reported, unless other- wise specified, are of morphological adults. Adulthood was judged by me on the basis of criteria appropriate to (and readily observa- ble in specimens of) a given taxon. Repro- ductive maturity precedes morphological ma- turity in most species of mammals, and repro- ductive activity is no indication that somatic maturation is complete. Senile, teratological, or otherwise aberrant individuals have not been utilized. As a convention, to make accounts of spe- cies more readily comparable, measurements of males and females are separated. In some cases, differences in size between sexes are significant neither statistically nor (insofar as is known) biologically. In most instances, measurements of a single, more or less local, population are given. Where a taxon is par- ticularly widespread or is subject to micro- geographic or other local variation, measure- ments of samples from more than one local population may be given. Samples of meas- urements presented generally are representa- tive of the taxon as it occurs in Colorado, but seldom are exhaustive of the available ma- terial. Representative cranial measurements may be noted in text or, when comparison with other kinds is of interest, in tables. Unless otherwise noted, cranial measurements were taken by me, by means of dial calipers, and
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