Abstract
A population of 266 Cuvier's gazelles, descendants of two males and two females from the Western Sahara and living in the Estacion Experimental de Zonas Aridas, was analyzed. Results show that the energy cost of producing and rearing offspring, measured as offspring body weight, does not vary between males and females. But more males than females die during the 1st month of life. The advantages of producing one or the other sex are discussed. The cost of the parents' future reproductive success of producing male or female offspring was also investigated. Interbirth intervals following a twin male-female birth are longer than the other possibilities. However, no effects were observed of sex and litter size of the previous birth on sex and litter size of next birth nor on survival to 1 month of the next birth. Also no relationships were observed when we compared the components of the lifetime reproductive success of mothers (mother's longevity, fecundity, 1 month survival rate, abortion rate and age at firs...
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
