Results 81 to 90 of about 2,777 (234)

Survival in the Rockies of an endangered hybrid swarm from diverged caribou (Rangifer tarandus) lineages

, 2009
In North America, caribou (Rangifer tarandus) experienced diversification in separate refugia before the last glacial maximum. Geographical isolation produced the barren-ground caribou (Rangifer tarandus groenlandicus) with its distinctive migratory ...
McDevitt A. D., Hebblewhite M., Decesare N. J., Weckworth B. V., Musiani M., Mariani S., Seip D., Morgantini L.   +7 more
core   +1 more source

Scent marking by male caribou: an experimental test of rubbing behavior

Rangifer, 2001
We studied scent marking by adult male caribou (Rangifer tarandus) during rut in September 1998 at the Large Animal Research Station in Fairbanks, Alaska, USA.
Craig A. Adams, R. Terry Bowyer, Jan E. Rowell, William E. Hauer, Jonathan A. Jenks   +4 more
doaj   +1 more source

Morphofunctional effects of captivity on the microanatomy of the talus bone in a wild ungulate (Sus scrofa)

Journal of Anatomy, EarlyView.
Our study explores the plastic changes induced by captivity on the microanatomy of the talus of wild boars, revealing denser bone with tighter trabecular networks but a lower relative maximum thickness of compact bone. These plastic adaptations can serve to detect early processes of domestication in the archaeological record.
Roman Ocaña, Thomas Cucchi, Camille Bader, Alexandra Houssaye   +3 more
wiley   +1 more source

The relationship between weather and caribou productivity for the La-Poile Caribou Herd, Newfoundland

Rangifer, 1991
To describe the relationship between weather and caribou (Rangifer tarandus) productivity, we compared weather variables (snow on ground, winter temperature and measures of growing season) with measures of productivity (calves seen by hunters, calves and
Steven H. Ferguson, Shane P. Mahoney
doaj   +1 more source

An ectopic antler in a male Woodland caribou (Rangifer tarandus caribou) in Quebec

, 1985
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Vandal, Denis, Barrette, Cyrille, Jolicoeur, Hélène   +2 more
openaire   +1 more source

The Long Arc of Forest Land Dispossession and Degradation—Firm and State Actions on Sámi Lands in the Wood‐Based Commodity Frontier in Northern Sweden, 1673–1955

Journal of Agrarian Change, EarlyView.
ABSTRACT This article presents a new way of obtaining deep explanations of environmental problems. We expose the production strategies, corporate strategies and state actions that have been taken by firms and state agencies to facilitate the geographical expansion of the wood‐based commodity frontier at the expense of reindeer pastoralists among the ...
David Harnesk, Lars Östlund
wiley   +1 more source

An uncertain future for woodland caribou (Rangifer tarandus caribou): The impact of climate change on winter distribution in Ontario

, 2017
Habitat alteration and climate change are two important environmental stressors posing increasing threats to woodland caribou, Rangifer tarandus caribou, in Ontario.
Arthur R. Rodgers, Sara Masood, Thomas M. Van Zuiden, Sapna Sharma   +3 more
core   +1 more source

Will ecosystem management supply woodland caribou habitat in northwestern Ontario?

Rangifer, 1998
Ecosystem management is emerging as an important concept in managing forests. Although the basic conceptual idea is not new, important defining principles are developing that elucidate some of the specific attributes of ecosystem management.
David L. Euler
doaj   +1 more source

The Keystone‐Pathogen Hypothesis Updated: The Role of Porphyromonas gingivalis in Periodontitis

Journal of Periodontal Research, EarlyView.
Porphyromonas gingivalis orchestrates a coordinated manipulation of immune and inflammatory responses in periodontal tissues which leads to the generation of a dysbiotic, subgingival biofilm community, and progression of periodontitis. The type 9 secretion system, lipid A modification, and the formation of outer membrane vesicles are important ...
Mike A. Curtis, James A. Garnett, Richard P. Darveau   +2 more
wiley   +1 more source

Genetic diversity, structure and gene flow of migratory barren-ground caribou (Rangifer tarandus groenlandicus) in Canada

, 2016
Migratory barren-ground caribou (Rangifer tarandus groenlandicus) provide an opportunity to examine the genetic population structure of a migratory large mammal whose movements and distribution, in some instances, have not been heavily influenced by ...
Keri McFarlane, Jan Adamczewski, Anne Gunn, Mathieu Dumond, Greg Wilson, Mitch Campbell   +5 more
core   +1 more source