. Ecology and behavior of the Manatee (Trichechus manatus) in Florida. Manatees; Mammals. 104 Spec. Publ. Amer. Soc. Mamm. 5. Fig. 36. Copulatory embrace. "deep" near the Main Spring in Kings Bay. Although interactions were obscured by the roiled water, mating probably took place. When the herd finally emerged in clear water, the cow paused in flight to allow successive copulations by two of the adult and one of the juvenile bulls. The nearest male would roll on his back, swim up from the rear, mouth the genital area of the cow, then slide fully under her, firmly grasping her from be
. Ecology and behavior of the Manatee (Trichechus manatus) in Florida. Manatees; Mammals. 104 Spec. Publ. Amer. Soc. Mamm. 5. Fig. 36. Copulatory embrace. "deep" near the Main Spring in Kings Bay. Although interactions were obscured by the roiled water, mating probably took place. When the herd finally emerged in clear water, the cow paused in flight to allow successive copulations by two of the adult and one of the juvenile bulls. The nearest male would roll on his back, swim up from the rear, mouth the genital area of the cow, then slide fully under her, firmly grasping her from beneath, extruding his penis and effecting intromission (Fig. 36). Pelvic thrusts were not evident. During copulation, the other bulls mouthed and embraced the cow from above and from the side. The cow was passive throughout and sank to the bottom in each embrace so that the males lay on their backs while mating. Between copulations the cow swam short distances before again pausing. Intervals between matings lasted less than a minute. The copulatory embraces lasted 15 to 30 seconds. Postcopulatory behavior among the bulls was identical to precopulatory behavior. They continued to embrace and pursue the cow. Within 10 minutes of the final mating, the cow made vigorous but unsuccessful attempt to evade her escorts. In her efforts to escape, she plunged headlong into clumps of Hydrilla. The males continued to pursue the female in the same area of the bay for most of the day, and the herd was there again the next morning. With the exception of the above instance, estrous cows were never seen to make receptive gestures to their male escorts. It. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Hartman, Daniel Stanwood, 1941-. [Pittsburgh, Pa. ] : American Society of Mammalogists
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Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectmammals
