The Polar Bear — Ursus maritimus
نویسندگان
چکیده
منابع مشابه
An Evolutionarily Young Polar Bear (Ursus maritimus) Endogenous Retrovirus Identified from Next Generation Sequence Data
Transcriptome analysis of polar bear (Ursus maritimus) tissues identified sequences with similarity to Porcine Endogenous Retroviruses (PERV). Based on these sequences, four proviral copies and 15 solo long terminal repeats (LTRs) of a newly described endogenous retrovirus were characterized from the polar bear draft genome sequence. Closely related sequences were identified by PCR analysis of ...
متن کاملThe Cause of Stereotypic Behaviour in a Male Polar Bear (Ursus Maritimus)
This study was focused on finding the cause of stereotypic behaviour in a male polar bear (Ursus maritimus). The zoo wants to reduce the stereotypies present in their male polar bear. However, this can only be accomplished if the cause of the behaviour is identified and targeted [1]. In this study external factors from 3 different categories (i.e. husbandry, geography and environment) are inves...
متن کاملAdaptation of the muscles of mastication to the flat skull feature in the polar bear (Ursus maritimus).
The muscles of mastication of the polar bear (Ursus maritimus) and those of the brown bear (U. arctos) were examined by anatomical approach. In addition, the examination of the skull was carried out in the polar bear, brown bear and giant panda (Ailuropoda melanoleuca). In the polar bear, the rostro-ventral part of the superficial layer of the M. masseter possessed the abundant fleshy portion f...
متن کاملEstablishing a definition of polar bear (Ursus maritimus) health: a guide to research and management activities.
The meaning of health for wildlife and perspectives on how to assess and measure health, are not well characterized. For wildlife at risk, such as some polar bear (Ursus maritimus) subpopulations, establishing comprehensive monitoring programs that include health status is an emerging need. Environmental changes, especially loss of sea ice habitat, have raised concern about polar bear health. E...
متن کاملInfanticide and Cannibalism of Juvenile Polar Bears (Ursus maritimus) in Svalbard
Two instances of infanticide and cannibalism in polar bears (Ursus maritimus) were observed in SE Svalbard, at Hopen Island. In the first, an adult male killed three young cubs at a den site and consumed one of them. In the second, an adult male actively pursued, killed, and consumed a dependent yearling. Infanticide of dependent polar bear offspring by adult males may be more common in Svalbar...
متن کامل