Tested 36 male, spayed female, and pseudohermaphroditic female dogs in pairs for competition over a large bone. Pseudohermaphrodites had been exposed to testosterone propionate before and immediately after birth. In equal opportunity (EO) tests, both members of a pair had equal chance to seize the bone. Each EO test was followed by an established possession (EP) test. During an EP test, the loser of the preceding EO test was given possession of the bone before the former winner was returned to the test arena. Every S was tested against all other members of its own and the other groups. Males won 78 of 100 EO tests against normal females but only 61 of 100 against pseudohermaphrodites. Pseudohermaphrodites won 70 of 100 EO tests against normal females. When either normal or pseudohermaphroditic females were given possession of the bone in EP tests they were equally ineffective in defense against male challengers, losing 75 and 71% of their tests, respectively. Both types of females were more successful in defending possession during EP tests against each other. When normal and pseudohermaphroditic females were treated with testosterone, their performance in competition tests was not altered. Androgenic stimulation before and immediately after birth permanently modified the social behavior of pseudohermaphrodites as well as the behavior of males and normal females toward experimental Ss. (6 ref)
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Competitive behavior in male, female, and pseudohermaphroditic female dogs
Beach, Frank A.; Buehler, Michael G.; Dunbar, Ian F.
Follow Journal of Comparative and Physiological Psychology
, Volume 96 (6): 855
PsycARTICLES® – Dec 1, 1982
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