Interindividual associations in dogs.

摘要: Interindividual behavior in a group of dogs reared together large field was studied to determine whether social and sexual interactions were more frequent some pairs than others. The experimental setting designed maximize the display individual sympathies antipathies. basic test provided situation which behavioral between pair animals contingent on one animal approaching other. One subject restricted by tether circular area with diameter approximately 12 feet while other subject, roving animal, released into outdoor for 5 minutes, duration each test. Measures association description made then roles reversed. Test combinations consisted paired females, males heterosexual pairs. Females observed before, during, after they estrus. Members opposite sex most attracted when females However, all not equally males. Three four showed preferences over A preferred male enjoyed several advantages nonpreferred : (a) he frequently sought solicited estrous female she spent time him, (b) permitted mount earlier her period, per day and, days, (c) rarely prevented from investigating or mounting being growled barked at bitten. Nonpreferred consistently rejected this manner. readily accepted females. Otherwise, uniformly rest them. In case, another. receptive aversions revealed these subjects evident first came estrus subsequent periods, natural induced exogenous hormones. These results interpreted as indicating that receptivity bitch is completely dependent ovarian Interactions infrequent brief compared those two containing an female. Strong associations evident. Male-male commonly involved elements ritualized aggression female-female did not. response another depended part had previously retreated aggressive encounter submissive stereotyped encounters visited, but himself, approached Some company sympathetic contacts long no