Results 191 to 200 of about 18,516 (235)

Summer warmth between 15,500 and 15,000 years ago enabled human repopulation of the northwest European margin. [PDF]

open access: yesNat Ecol Evol
Matthews IP   +11 more
europepmc   +1 more source

The Caribou (Rangifer tarandus) Genome [PDF]

open access: yesGenes, 2019
Rangifer tarandus, known as caribou or reindeer, is a widespread circumpolar species which presents significant variability in their morphology, ecology, and genetics. A genome was sequenced from a male boreal caribou (R. t. caribou) from Manitoba, Canada. Both paired end and Chicago libraries were constructed and sequenced on Illumina platforms.
Rebecca S Taylor   +2 more
exaly   +3 more sources
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Hearing in reindeer ( Rangifer tarandus )

Journal of Comparative Physiology A: Sensory, Neural, and Behavioral Physiology, 2001
The audiogram of two yearling male reindeer (Rangifer tarandus tarandus) were determined using a conditioned suppression/avoidance procedure. During testing, the animal was drinking from a metal bowl while pure tone signals were played at random intervals and followed by an electric shock in the bowl. By breaking contact with the bowl at sound signals,
K, Flydal   +3 more
openaire   +2 more sources

Dental Anomalies in Caribou, Rangifer tarandus

Journal of Mammalogy, 1971
The dentitions of 43 of 1226 caribou (Rangifer tarandus) skulls examined had anomalies. Of the 43, 13 had supernumerary teeth, 25 had missing teeth, and five had extreme variations in root development and abnormal dentary patterns. These anomalies appear to be genetically produced and further study from the standpoint of evolutionary origin might be ...
F L, Miller, G D, Tessier
openaire   +2 more sources

Panting in reindeer (Rangifer tarandus)

American Journal of Physiology-Regulatory, Integrative and Comparative Physiology, 2000
Two winter-insulated Norwegian reindeer ( Rangifer tarandus tarandus) were exposed to air temperatures of 10, 20, 30, and 38°C while standing at rest in a climatic chamber. The direction of airflow through nose and mouth, and the total and the nasal minute volumes, respectively, were determined during both closed- and open-mouth panting.
O, Aas-Hansen, L P, Folkow, A S, Blix
openaire   +2 more sources

Electrocardiogram of the reindeer, Rangifer tarandus tarandus

Laboratory Animals, 1979
Summary Electrocardiograms were recorded for 50 Finnish reindeer of age 1 day to 9 years, using standard and unipolar extremity leads in the frontal plane. The range of heart rate was 40–250 beats per minute. Atrial and ventricular depolarization times were 5–10 ms shorter in newborn calves than in older reindeer, and showed only minor variance with ...
J, Timisjärvi   +3 more
openaire   +2 more sources

Transplacental toxoplasmosis in a reindeer (Rangifer tarandus) fetus

Veterinary Parasitology, 2002
Toxoplasma gondii infection was diagnosed in a full term stillborn reindeer (Rangifer tarandus) fetus. The fetus had encephalitis and placentitis associated with T. gondii. Tissue cysts were identified histologically in sections of brain and tachyzoites were present in placenta and the myocardium.
J P, Dubey, B, Lewis, K, Beam, B, Abbitt
openaire   +2 more sources

Defining the anatomy of the Rangifer tarandus sex chromosomes

Chromosoma, 1998
A comprehensive cytogenetic characterization of the unusally large reindeer (Rangifer tarandus) sex chromosomes is presented for the purpose of studying the evolution of these atypical gonosomes. Sex chromosome idiograms were constructed from G-banded and C-banded chromosomes to illustrate the relative amounts and locations of euchromatin and ...
C, Lee   +5 more
openaire   +2 more sources

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