![]() They would go on to point out that the facts that such individuals tend to be smaller is consistent with such a hypothesis because elk are smaller than moose. … The cervina type was most prevalent in the southern zone and the palmated type in the northern zone.īut how would anyone who did think in terms of hybridization interpret such results? Well, obviously, they would say that “moose” with cervina antlers are really moose-elk hybrids that tend more toward the elk end of the spectrum. At an older age, the cervina type increased and the other types decreased. At the prime age of 6.5–10.5 years, the prevalent types were intermediate and palmated. The youngest age groups were predominantly of cervina type. The cervina type had the smallest and the palmated the largest carcass weight, antler spread and tine numbers. So there is no discussion of possible hybridization. ![]() As she conceptualizes the population, it is composed of pure moose that somehow show a range of variation in their antlers from moose-like (palmate) to deer-like (cervina). alces” Nygren classified antlers into three categories palmate, cervina, and intermediate (between palmate and cervina). Palmate antlers are, at least in part, shaped like a hand, that is, there is a flat region like a palm, around the edges of which tines are attached like fingers. In Latin cervina means “of or pertaining to a deer or stag.” So describing antlers as “cervina” amounts to a fancy way of saying they look like deer antlers. Indeed, she uses the term “cervina” to designate the sort of antlers seen on the moose in the slide show at the top of this page. For example, in the present case Nygrén (2007) interpreted animals with moose-like bodies and deer-like antlers as pure moose with deer-like antlers. There is, however, a tendency among biologists to describe variation produced by hybridization as “individual variation.” Generally speaking, people who use this term leave hybridization out of account altogether, that is, they conceive of the population in question as pure (unaffected by hybridization) but variable. Ongoing hybridization, especially when the hybrids themselves are capable of producing offspring, creates highly variable populations, typically made up of individuals that are intermediate in various ways between the two parental forms that originally crossed to produce them. It is well known that hybridization produces variation. In Latin cervina means “of or pertaining to a deer or stag.” Some authors use the term cervina to refer to such antlers. The antlers of this animal are more similar to those of a mule deer ( Odocoileus hemionus) than to those of an elk ( Cervus elephas). An obvious moose-deer hybrid photographed near Red Feather Lakes, Colorado.
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