scholarly journals Terje Skogland; Life history charcteristics of wild reindeer (Rangifer tarandus tarandus L.) in relation to their food resources; ecological effects and behavioral adaptations

Rangifer ◽  
1985 ◽  
Vol 5 (2) ◽  
pp. 61
Author(s):  
Sven Skjenneberg (ed.)
Keyword(s):  
Life History ◽  
Rangifer Tarandus ◽  
Food Resources ◽  
Ecological Effects ◽  
Behavioral Adaptations ◽  
Rangifer Tarandus Tarandus ◽  
Life History Characteristics ◽  
University Of Oslo ◽  
The University ◽  
Wild Reindeer

The thesis Life history characteristics of wild reindeer (Rangifer tarandus tarandus L.) is approved for the Phil.dr's degree at the University of Oslo. The dissertation took place in Oslo November 9. 1985.

scholarly journals Wild reindeer of Yakutia

Rangifer ◽  
1996 ◽  
Vol 16 (4) ◽  
pp. 387
Author(s):  
V.M. Safronov
Keyword(s):  
Rangifer Tarandus ◽  
Mountainous Areas ◽  
New Siberian Islands ◽  
Rangifer Tarandus Tarandus ◽  
Wild Meat ◽  
Wild Reindeer

Three major herds of wild reindeer (Rangifer tarandus tarandus L.), totaling over 200,000 animals, occur in the tundra and taiga of northern Yakutia. These herds have been expanding since the late 1950s and now occupy most of their historic range. In addition, several thousand wild reindeer occupy the New Siberian Islands and adjacent coastal mainland tundra, and there are about 60,000 largely sedentary forest reindeer in mountainous areas of the southern two-thirds of the province. Wild reindeer are commercially hunted throughout the mainland, and the production of wild meat is an important part of the economy of the province and of individual reindeer enterprises which produce both wild and domestic meat.

scholarly journals Cumulative Impacts of Tourist Resorts on Wild Reindeer (Rangifer tarandus tarandus) during Winter

ARCTIC ◽  
2000 ◽  
Vol 53 (1) ◽  
Author(s):  
Christian Nellemann ◽  
Per Jordhøy ◽  
Ole-Gunnar Støen ◽  
Olav Strand
Keyword(s):  
Rangifer Tarandus ◽  
Cumulative Impacts ◽  
Rangifer Tarandus Tarandus ◽  
Wild Reindeer

Responses of wild reindeer (Rangifer tarandus tarandus) when provoked by a snow-kiter or skier: A model approach

2012 ◽  
Vol 142 (1-2) ◽  
pp. 82-89 ◽  
Author(s):  
Jonathan E. Colman ◽  
Marte S. Lilleeng ◽  
Diress Tsegaye ◽  
Magnus D. Vigeland ◽  
Eigil Reimers
Keyword(s):  
Rangifer Tarandus ◽  
Rangifer Tarandus Tarandus ◽  
Wild Reindeer ◽  
Model Approach

Twenty-four-hour feeding and lying patterns of wild reindeer Rangifer tarandus tarandus in summer

2001 ◽  
Vol 79 (12) ◽  
pp. 2168-2175 ◽  
Author(s):  
Jonathan E Colman ◽  
Christian Pedersen ◽  
Dag Ø. Hjermann ◽  
Øystein Holand ◽  
Stein R Moe ◽  
...  
Keyword(s):  
Rangifer Tarandus ◽  
Feeding Patterns ◽  
Rangifer Tarandus Tarandus ◽  
Proximate Factors ◽  
Insect Harassment ◽  
Time Spent Feeding ◽  
Night And Day ◽  
Wild Reindeer

We tested whether sunlight and insect harassment were important proximate factors (Zeitgebers) controlling feeding and lying patterns of wild reindeer (Rangifer tarandus tarandus) in summer. With no insect harassment, feeding and lying each exhibited a polycyclic rhythm with, on average, 4 bouts at equal intervals during each 24-h period (unit-sum constraints in a polycyclic rhythm). When insects were absent, the activity percentages were 50 ± 4% feeding (mean ± SE) and 33 ± 4% lying for daytime and 44 ± 3% feeding and 47 ± 4% lying for nighttime, i.e., the percentage of time spent feeding was equal for daytime and nighttime (nychthemeral), while for lying it was not. With insects present, percentages of time spent feeding and lying were 18 ± 3 and 13 ± 3% for daytime and 45 ± 8 and 41 ± 8% for nighttime, respectively, i.e., neither feeding nor lying exhibited a nychthemeral pattern. During periods of insect harassment, 24-h feeding patterns had no cyclic rhythm, whereas lying remained cyclic, but the percentages of time spent lying during peak bouts (amplitude) and at peak duration (period) were unequal between night and day. Reindeer did not attune their activity to the set points of sunrise and sunset (not crepuscular), demonstrating that daylight is most likely not a powerful Zeitgeber for reindeer during summer.

scholarly journals Gammaherpesvirus in Cervid Species from Norway: Characterization of a New Virus in Wild and Semi-Domesticated Eurasian Tundra Reindeer (Rangifer tarandus tarandus)

Viruses ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 876
Author(s):  
Carlos G. das Neves ◽  
Carlos Sacristán ◽  
Knut Madslien ◽  
Morten Tryland
Keyword(s):  
Dna Polymerase ◽  
Cervus Elaphus ◽  
Rangifer Tarandus ◽  
Red Deer ◽  
Blood Samples ◽  
Future Studies ◽  
Rangifer Tarandus Tarandus ◽  
Potential Impact ◽  
Wild Reindeer

Gammaherpesvirus infections have been described in cervids worldwide, mainly the genera Macavirus or Rhadinovirus. However, little is known about the gammaherpesviruses species infecting cervids in Norway and Fennoscandia. Blood samples from semi-domesticated (n = 39) and wild (n = 35) Eurasian tundra reindeer (Rangifer tarandus tarandus), moose (Alces alces, n = 51), and red deer (Cervus elaphus, n = 41) were tested using a panherpesvirus DNA polymerase (DPOL) PCR. DPOL-PCR-positive samples were subsequently tested for the presence of glycoprotein B (gB) gene. The viral DPOL gene was amplified in 28.2% (11/39) of the semi-domesticated reindeer and in 48.6% (17/35) of the wild reindeer. All moose and red deer tested negative. Additionally, gB gene was amplified in 4 of 11 semi-domesticated and 15 of 17 wild Eurasian reindeer DPOL-PCR-positive samples. All the obtained DPOL and gB sequences were highly similar among them, and corresponded to a novel gammaherpesvirus species, tentatively named Rangiferine gammaherpesvirus 1, that seemed to belong to a genus different from Macavirus and Rhadinovirus. This is the first report of a likely host-specific gammaherpesvirus in semi-domesticated reindeer, an economic and cultural important animal, and in wild tundra reindeer, the lastpopulation in Europe. Future studies are required to clarify the potential impact of this gammaherpesvirus on reindeer health.

Abomasal nematodes from three Norwegian wild reindeer populations

1987 ◽  
Vol 65 (3) ◽  
pp. 677-680 ◽  
Author(s):  
Karstein Bye
Keyword(s):  
Life History ◽  
Physical Condition ◽  
Rangifer Tarandus ◽  
Host Population ◽  
Intensity Of Infection ◽  
Mean Intensity ◽  
Life History Parameters ◽  
Teladorsagia Circumcincta ◽  
The Mean ◽  
Wild Reindeer

Three separate populations of wild reindeer (Rangifer tarandus tarandus L.) in Norway were examined for the presence of abomasal nematodes. The following six species were recorded: Ostertagia grühneri, Skrjabinagia arctica, Trichostrongylus axei, Teladorsagia circumcincta, Teladorsagia davtiani, and Nematodirus tarandi. Ostertagia grühneri dominated both in prevalence and intensity of infection. Teladorsagia davtiani occurred in only one of the populations investigated, and N. tarandi was found in calves only. Reindeer and sheep grazed the same areas, but no evidence of transfer of parasites from sheep to reindeer was found. All 72 adult reindeer and 10 calves examined during February–April harboured adult abomasal nematodes. The mean intensity of abomasal nematodes was highest in the population with the highest density of reindeer. Reindeer from this population were in poor physical condition. The influence of abomasal nematodes on life-history parameters of the host population is discussed.

scholarly journals Population dynamics of the Taimyr reindeer population

Rangifer ◽  
1996 ◽  
Vol 16 (4) ◽  
pp. 381 ◽  
Author(s):  
B.M. Pavlov ◽  
L.A. Kolpashchikov ◽  
V.A. Zyryanov
Keyword(s):  
Population Dynamics ◽  
Rangifer Tarandus ◽  
Winter Range ◽  
Krasnoyarsk Region ◽  
Rangifer Tarandus Tarandus ◽  
Commercial Harvest ◽  
The World ◽  
Reindeer Population ◽  
Wild Reindeer ◽  
Commercial Harvesting

The Taimyr herd of wild reindeer (Rangifer tarandus tarandus L.) is one of the three largest herds of wild Rangifer in the world, and numbered about 600 000 in 1993. The herd grew continuously from 1959 to 1990, and is now stable due primarily to intensive commercial harvesting along the Khatanga River. Meat from the commercial harvest is processed and sold in population centers in the northern Krasnoyarsk region, particularly Norilsk. The herd has expanded its range to about 1.5 million km2, but movements to the southwestern portion of the winter range may have been impeded by pipeline, road and railroad construction, and winter shipping of ore on the lower Yenisey River.

The influence of food resources on life history in Columbian ground squirrels

1985 ◽  
Vol 63 (9) ◽  
pp. 2105-2109 ◽  
Author(s):  
F. Stephen Dobson ◽  
Julia D. Kjelgaard
Keyword(s):  
Body Weight ◽  
Life History ◽  
Litter Size ◽  
Life History Theory ◽  
Experimental Manipulation ◽  
Food Resources ◽  
Ground Squirrels ◽  
Life History Characteristics ◽  
Columbian Ground Squirrels ◽  
Two Populations

Life history characteristics were studied experimentally in Columbian ground squirrels (Spermophilus columbianus) at two elevations in the Rocky Mountains of southwestern Alberta, Canada, from 1981 to 1984. In two populations with supplemented food resources, survival of young increased, age at maturity of females decreased, litter size increased, and spring body weight increased in comparison with an initial unmanipulated period and with two populations monitored for reference. For individual ground squirrels, litter size and spring body weight increased under supplementation. Thus, life history characteristics exhibited phenotypically plastic responses to experimental manipulation of food resources. Life history patterns changed among natural ground squirrel populations at different elevations and these changes were likely due to changes in food resources. A general prediction of life history theory that reproductive effort should be highest in years favorable for juvenile survivorship was supported by the experimental results. The results did not support predictions from interspecific studies of changes in life history characteristics that scale to body weight.

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