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 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

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.

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 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.

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 ◽  
Rangifer Tarandus Tarandus ◽  
Wild Reindeer

scholarly journals Insect avoidance may override human disturbances in reindeer habitat selection

Rangifer ◽  
2004 ◽  
Vol 24 (2) ◽  
pp. 95-103 ◽  
Author(s):  
Anna Skarin ◽  
Öje Danell ◽  
Roger Bergström ◽  
Jon Moen
Keyword(s):  
Wind Speed ◽  
Habitat Selection ◽  
Rangifer Tarandus ◽  
Faecal Pellet ◽  
Reindeer Herding ◽  
Human Disturbances ◽  
Pellet Group ◽  
Direct Observations ◽  
Rangifer Tarandus Tarandus ◽  
Insect Harassment

Habitat selection of semi-domesticated reindeer (Rangifer tarandus tarandus) was investigated through faecal pellet- group counts and by direct observations of reindeer from helicopter in the Långfjället area in Idre reindeer herding district (62˚10’N) and in Mittådalen reindeer herding district (62˚50’N, aerial observations only). Reindeer pellets were found to be most abundant in habitats at high altitudes, and in some vegetation types. Pellet-group densities tended to be higher near the tourist trails, which often follow higher altitudes in the terrain. The aerial surveys showed that the reindeer moved towards higher altitudes when the wind speed was low and the temperature was high both in June and July. In June they moved towards lower regions when temperature was low and the wind speed was strong. The conclusion is that the reindeer use Långfjället to escape insect harassment and warm weather, even though disturbance by tourism sometimes is high.Abstract in Swedish / Sammanfattning:Habitatval hos tamren (Rangifer tarandus tarandus) undersöktes genom att göra en spillningsinventering och genom att göra flygobservationer från helikopter. Studien gjordes på Långfjället (62˚10’N) i Idre nya sameby och i Mittådalens samebys sommarbetesområde (62˚50’N, endast flygobservationer). På Långfjället finns det vandringsleder som är frekventerade av vandrare från juni månad fram till september. Spillningen visade att renarna föredrog höjderna i området samt en del av vegetationstyperna. Det var också mer spillning närmare vandringslederna. Detta kan förklaras av att vandringslederna följer höjderna i terrängen. Flyginventeringarna under både juni och juli visade att renarna rörde sig mot högre terräng när det var varmt och lugnt väder. I juni rörde dom sig också i lägre terräng när det var stark vind och kallt väder. Slutsatsen är att renarna väljer att vistas i högre terräng för att undvika störningar från insekter och för att finna svalka trots att det är mänsklig aktivitet i området.

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