Results 81 to 90 of about 12,295 (219)

Influence of In-Situ Oil Sands Development on Caribou (Rangifer tarandus) Movement

open access: yesPLOS ONE, 2015
In-situ oil sands development (ISD) involves a network of facilities, wells, roads and pipelines to extract and transport subsurface bitumen. This technology is rapidly expanding and there is uncertainty whether ISDs restrict animal movement, leading to increased extinction probabilities for some wide-ranging species.
Tyler Muhly   +4 more
openaire   +4 more sources

Population genetics of woodland caribou (Rangifer tarandus caribou) on the island of Newfoundland

open access: yes, 2010
The purpose of this study was to characterize the genetic variation and genetic structure of caribou herds on the island of Newfoundland. A 2223 bp sequence of mitochondrial DNA from the Control Region and the cytochrome b gene was sequenced for 233 ...
Wilkerson, Corinne D.
core   +1 more source

The distribution and movement patterns of four woodland caribou herds in Quebec and Labrador

open access: yesRangifer, 1986
Recent studies of woodland caribou (Rangifer tarandus caribou) in northern Quebec and central Labrador have demonstrated similar patterns of seasonal movements and distribution among four herds.
W. K. Brown   +6 more
doaj   +1 more source

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

open access: yesJournal 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   +2 more
wiley   +1 more source

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

open access: yesRangifer, 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

open access: yes, 1985
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Vandal, Denis   +2 more
openaire   +1 more source

Humans are not unique: difficult birth is common in placental mammals

open access: yesBiological Reviews, Volume 101, Issue 5, Page 2214-2239, October 2026.
ABSTRACT Human childbirth is widely presumed to be uniquely difficult and dangerous compared to birth in other mammals. Tight fetopelvic proportions can result in obstructed labour and contribute to high rates of maternal and neonatal mortality. Ideas summarised under the ‘obstetrical dilemma’ have contributed to this assumption by explaining difficult
Nicole D. S. Grunstra
wiley   +1 more source

Will ecosystem management supply woodland caribou habitat in northwestern Ontario?

open access: yesRangifer, 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

Application of Multi‐Method Dating for Understanding the Gravettian North of Moravia, Central Europe

open access: yesArchaeometry, Volume 68, Issue 5, Page 1050-1061, October 2026.
ABSTRACT This article presents the results of integrating three methods to assess the age of the Upper Palaeolithic site of Pietraszyn 11 (SW Poland), close to the Moravian Gate. Sediment chronology determined using optically stimulated luminescence produced promising, yet ambiguous results (51.0 ± 3.7 to 20.3 ± 0.7 ka).
A. Wiśniewski   +16 more
wiley   +1 more source

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

open access: yesRangifer, 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   +4 more
doaj   +1 more source

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