caa a22 4500 465781993 CHVBK 20180323111957.0 cr unu---uuuuu 170327e19900601xx s 000 0 eng 10.1007/BF00170901 doi (NATIONALLICENCE)springer-10.1007/BF00170901 Sperm competition and variation in zebra mating behavior [Elektronische Daten] [J. Ginsberg, D. Rubenstein] Summary: Data are presented on the breeding behavior of two zebra species to test whether intra- and interspecific variation in male reproductive behavior and physiology are correlated with differences in female promiscuity. In one species, plains zebra (Equus burchelli) females live in closed membership single male groups and mate monandrously. In the other species, the Grevy's zebra (E. grevyi) females live in groups whose membership is much more temporary. Typically, associations with individual males are brief and mating is polyandrous. However, some females - those having just given birth — reside with one male for long periods, mating monandrously. These differences in female mating behavior generate variability in the potential for sperm competition. We show that behavioral differences in male investment in reproductive activities correlate with the potential for sperm competition. When mating with promiscuous mares, Grevy's zebra stallions made a greater investment in reproductive behavior (calling, mounting, ejaculations) than did stallions of either species when mating with monandrous females. The evolution of large testes size in the Grevy's zebra, when compared to the congeneric plains zebra, horse, and mountain zebra, allows for this increased investment. Springer-Verlag, 1990 Ginsberg J. Department of Biology, Princeton University, 08544-1003, Princeton, NJ, USA aut Rubenstein D. Department of Biology, Princeton University, 08544-1003, Princeton, NJ, USA aut Behavioral Ecology and Sociobiology Springer-Verlag 26/6(1990-06-01), 427-434 0340-5443 26:6<427 1990 26 265 https://doi.org/10.1007/BF00170901 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00170901 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ginsberg J. Department of Biology, Princeton University, 08544-1003, Princeton, NJ, USA aut NATIONALLICENCE 700 1- Rubenstein D. Department of Biology, Princeton University, 08544-1003, Princeton, NJ, USA aut NATIONALLICENCE 773 0- Behavioral Ecology and Sociobiology Springer-Verlag 26/6(1990-06-01), 427-434 0340-5443 26:6<427 1990 26 265 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer