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Behavior of Free-Living Giant Anteaters (Myrmecophaga tridactyla)

James H. Shaw, Jose Machado-Neto and Tracy S. Carter
Biotropica
Vol. 19, No. 3 (Sep., 1987), pp. 255-259
DOI: 10.2307/2388344
Stable URL: http://www.jstor.org/stable/2388344
Page Count: 5
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Behavior of Free-Living Giant Anteaters (Myrmecophaga tridactyla)
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Abstract

We captured and marked 29 anteaters within an area of 21 km$^2$ Two births and one death occurred during the study. Home ranges for adult females averaged 3.67 km$^2$ and for adult males, 2.74 km$^2$ Home range overlap was significantly greater among females than among males. Anteaters became active between 1300 and 1400 hr, with activity peaking at about 1800-1900 hr and gradually diminishing until 0200 hr. For diurnal bedsites, anteaters selected brushland (cerrado) more frequently than expected but used it less frequently than expected for foraging. Courtship behavior was noted during January, although young were apparently born at any time of year. Ten agonistic encounters were recorded in ca 300 hr of observation and generally involved males.

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