HOME-RANGE AND ACTIVITY PATTERNS OF THE SOUTH AMERICAN SUBTERRANEAN RODENT CTENOMYS TALARUM
作者： Ana Paula Cutrera , C Daniel Antinuchi , Matias Sebastian Mora , Aldo Iván Vassallo
DOI: 10.1644/05-MAMM-A-386R1.1
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摘要: Subterranean rodents are characterized by limited individual mobility and patchy distribution of local populations, all which have been related to the great evolutionary diversification this group. Because their secretive habits, radiotracking becomes an essential tool collect data systematically on characteristics space use, rate movement, daily patterns activity. Compared other subterranean species, ctenomyids exhibit more activity above surface. Despite this, a previous study showed that only 25% captive individuals analyzed presented rhythmic bouts associated with light‐dark cycles. In our study, we used radiotelemetry explore quantitatively home-range dynamics movements South American Talas tuco-tuco (Ctenomys talarum). As expected, home ranges males were larger than those females. However, intraspecific variation in size also was observed between 2 different sites, possibly reflecting differences body soil sites. Rhythmicity confirmed be polymorphic as previously captivity, mostly concentrated diurnal period. We suggest present will contribute generating important insights into free-living rodents.
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