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Sexually Dimorphic Developmental Patterns Of Chemosensory Behaviors In African Elephants (Loxodonta Africana), Dhaval Kartik Vyas
Sexually Dimorphic Developmental Patterns Of Chemosensory Behaviors In African Elephants (Loxodonta Africana), Dhaval Kartik Vyas
Electronic Theses and Dissertations
Like many polygynous mammals, African elephants exhibit social dimorphism in which females reside in matriarchal groups while males often travel alone or in bachelor groups. Males search for receptive mates who may advertise their condition through chemical and other signals. The difference in adult lifestyles suggests that the developmental pattern of communication for the two sexes should diverge when the social environment and reproductive opportunities of males and females begin to differ. In this study, I examined the differences between the sexes and across four age classes (calves, juveniles, subadults and adults) in the performance of chemosensory behaviors. African elephants …
Age Effects On Social And Investigative Behaviors In A Closed Population Of African Elephants, Christen Eileen Merte
Age Effects On Social And Investigative Behaviors In A Closed Population Of African Elephants, Christen Eileen Merte
Electronic Theses and Dissertations
In this study of African elephants (Loxodonta africana), I examined two competing hypotheses to explain the development of social and reproductive behaviors. The reproductive hypothesis states that behaviors change around the time when an individual begins successfully reproducing, while the social dominance hypothesis states that behaviors change throughout the life of an individual, reflective of changes in social rank. These hypotheses were explored in male and female elephants during the entry to a signal-rich waterhole and in female African elephants across seasons. Chemosensory and social behaviors were recorded in Addo Elephant National Park between May 2004 and June 2005 using …
Sexual Dimorphic Social Development And Female Intrasexual Chemical Signaling Of African Elephants (Loxodonta Africana), Jordana M. Meyer
Sexual Dimorphic Social Development And Female Intrasexual Chemical Signaling Of African Elephants (Loxodonta Africana), Jordana M. Meyer
Electronic Theses and Dissertations
Author's abstract: African elephants are a polygynous species in which males and females carry out dimorphic lifestyles. Males search and compete for reproductively active females, while females care for offspring and facilitate group cohesion. The objectives of this study was a) to compare the development of sexually dimorphic behaviors and developmental trends between young male and female wild African elephants and b) to determine the ability of captive female African elephants to discern between the follicular and luteal phase of conspecifics through trunk-tip contacts and the investigation of urine, and whether the reproductive phase of the receiver affected the response …