Results 81 to 90 of about 4,271 (186)
The chromosomes of reindeer (Rangifer tarandus)
The karyotypes of Rangifer t. tarandus L . and Rangifer t. fennicus Lonnb. have been established. The chromosomes have been stained by several methodes (G-, C-, Qand R-banding, NOR-staining). The chromosome number is 70, N F is 74. The autosomes consist of 33 acrocentric pairs and one submetacentric pair (no. 34).
Gripenberg, Ulla, Nieminen, Mauri
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This study assessed the habitat suitability and spatial niche differentiation of three sympatric ungulates—Black muntjac, Reeves's muntjac, and Wild boar—in the Tongbo Mountain National Nature Reserve, China. Using MaxEnt modeling and niche overlap analysis, we found distinct habitat preferences and hierarchical niche segregation that facilitate ...
Jie Yao +6 more
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Reindeer breathe less and save water in the cold
Simultaneous measurements of metabolic rate, respiratory minute volume, respiratory frequency, and oxygen extraction from the inspired air were obtained during treadmill exercise in Svalbard reindeer (Rangifer tarandus platyrhynchus) and Norwegian ...
Kjell J. Nilssen +2 more
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ABSTRACT The rising global consumption of game meat has highlighted gaps in the management of biological hazards associated with its production and consumption, and the safety of processed game meat products remain insufficiently addressed. Therefore, there is a need for research evaluating the effectiveness of processing and preservation methods in ...
Naim Deniz Ayaz +21 more
wiley +1 more source
Top‐Down and Bottom‐Up Processes Jointly Explain Mesopredator Movement and Foraging Ecology
This study integrates top‐down (polar bear habitat selection) and bottom‐up (fish distribution) processes to test how mesopredators (ringed seals) balance risk–reward tradeoffs in habitat selection. Ringed seals reduced their space use and foraging time in response to predation risk, yet accepted higher risk when prey diversity was elevated ...
Katie R. N. Florko +7 more
wiley +1 more source
Black bears as apex predators. American black bears can (1) produce top‐down effects on ungulates equal to or exceeding those of typical apex predators and (2) modify the spatiotemporal behaviour of other carnivores, including pumas and coyotes. We argue that the term ‘apex predator’ is highly context dependent and not a species‐wide status.
John M. Nettles +10 more
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Objects as Knowledgeable Elders: Lessons From the Reindeer Calf Halter Mȯnggu̇i
ABSTRACT This article presents ongoing research that reconnects a historical ethnographic collection housed in a European museum with the descendants of its source communities in the transnational Inner Asian region, specifically among the Tozhu and Tukha reindeer herders of the Tyva Republic and Mongolia.
Victoria Soyan Peemot
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Summary Soil nutrients and vertebrate herbivory are key ecological factors with opposite and interactive effects on grassland plant traits and biomass. Partitioning trait changes into species turnover and intraspecific change provides a mechanistic linkage between trait shifts and biomass responses.
Xuebin Yan +2 more
wiley +1 more source
Effect of behavioral marginality on survival of an alpine ungulate
Inter‐individual variability in behavior has been studied extensively for a wide range of species. However, few researchers have considered marginality, defined as the degree to which a choice made by an individual is located at the margins of the ...
Frédéric Lesmerises +2 more
doaj +1 more source
Rangifer population ecology: a Scandinavian perspective
Population ecology is concerned with measuring changes in population size and composition, and identifying the causes of these fluctuations. Important driving variables include animal body size and growth rate, and their relationship to reproduction and mortality.
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