Ochotona princeps
نویسندگان
چکیده
منابع مشابه
Ochotona princeps (pika) myoglobin: an appraisal of lagomorph phylogeny.
Myoglobin was purified from skeletal muscle of the pika (Ochotona princeps) and its primary structure was determined. This sequence was added to the set of 64 already known vertebrate myoglobin sequences and used to evaluate the phylogenetic position of the pika among other mammals, using a computerized search procedure based on maximum parsimony criteria. The pika is clearly related to the rab...
متن کاملPlastic pikas: Behavioural flexibility in low-elevation pikas (Ochotona princeps).
Behaviour is an important mechanism for accommodating rapid environmental changes. Understanding a species' capacity for behavioural plasticity is therefore a key, but understudied, aspect of developing tractable conservation and management plans under climate-change scenarios. Here, we quantified behavioural differences between American pikas (Ochotona princeps) living in an atypical, low-elev...
متن کاملInfluence of rufuging consumers (pikas: Ochotona princeps) on subalpine meadow vegetation
Talus slopes in western North America frequently are bordered by vegetation that differs in biomass, cover, height, and species composition from vegetation located farther from talus. These areas are grazed by pikas (Ochotona princess, which nest in that talus. Foraging theory predicts that pikas will produce a gradient of grazing pressure, which could produce the observed vegetational zonation...
متن کاملStress hormone concentration in Rocky Mountain populations of the American pika (Ochotona princeps)
The American pika (Ochotona princeps) is considered a sentinel species for detecting ecological effects of climate change. Pikas are declining within a large portion of their range, but previous studies have focused only on local pika extinction as a metric of change. We designed a procedure which can provide an earlier warning signal, based on non-invasive sampling and analysis of physiologica...
متن کاملGut microbial communities of American pikas (Ochotona princeps): Evidence for phylosymbiosis and adaptations to novel diets.
Gut microbial communities provide many physiological functions to their hosts, especially in herbivorous animals. We still lack an understanding of how these microbial communities are structured across hosts in nature, especially within a given host species. Studies on laboratory mice have demonstrated that host genetics can influence microbial community structure, but that diet can overwhelm t...
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ژورنال
عنوان ژورنال: Mammalian Species
سال: 1990
ISSN: 0076-3519
DOI: 10.2307/3504319