Zobrazeno 1 - 10
of 97
pro vyhledávání: '"David R. Klein"'
Autor:
David R. Klein, Inge E. Danielsen
Publikováno v:
Rangifer, Vol 23, Iss 2 (2003)
Externí odkaz:
https://doaj.org/article/0ebd8f24cb98411db3460754e7819a5a
Publikováno v:
Rangifer, Vol 22, Iss 1 (2002)
To understand the factors influencing life history traits and population dynamics, attention is increasingly being given to the importance of environmental stochasticity. In this paper, we review and discuss aspects of current knowledge concerning th
Externí odkaz:
https://doaj.org/article/00340ca945824458a82efcc64d0775b1
Autor:
David R. Klein
Publikováno v:
Rangifer, Vol 16, Iss 2 (1996)
The two ungulate species that occur in the High Arctic, Rangifer tarandus and Ovibos moschatus, exhibit considerable adaptive plasticity in response to habitat variability throughout their circumpolar distribution. R. tarandus, however, has a much wi
Externí odkaz:
https://doaj.org/article/93079a1ebb214d8887b63bc45ff3524e
Publikováno v:
Rangifer, Vol 13, Iss 1 (1993)
Muskoxen (Ovibos moschatus) introduced to formerly occupied areas in northeastern Alaska (70°N) in 1969 and 1970, and the Taimyr Peninsula (75°N) in 1974 and 1975 increased in number (exceeding 20%/year in the early years following their establishm
Externí odkaz:
https://doaj.org/article/4639143c06004aa5b88a8b12a4d69297
Autor:
David R. Klein
Publikováno v:
Rangifer, Vol 12, Iss 2 (1992)
Caribou/reindeer and muskoxen are the only two ungulate species that have successfully occupied arctic tundra habitats. Although confronted with similar environmental constraints, their morphological dissimilarities have enabled them to develop uniqu
Externí odkaz:
https://doaj.org/article/19a071402ba34d02a83f7380ba682611
Autor:
David R. Klein, Tatyana J. Vlasova
Publikováno v:
Rangifer, Vol 12, Iss 1 (1992)
Lichens are the primary winter forage for most mainland caribou and reindeer herds in North America and for the majority of domestic and wild reindeer in Siberia and northern Europe, collectively totaling in excess of 5 million animals. Lichens repre
Externí odkaz:
https://doaj.org/article/3f091ee922754ef9ae749cdbe1cbe352
Autor:
David R. Klein
Publikováno v:
Rangifer, Vol 11, Iss 4 (1991)
Caribou and wild reindeer populations fluctuate over time. On this fact there is general agreement. Factors responsible for population limitation and subsequent declines have been examined within the framework of animal population theory. There is, h
Externí odkaz:
https://doaj.org/article/0d834f988b0341d4b7a501a4e31150a9
Autor:
Kenneth J. Wilson, David R. Klein
Publikováno v:
Rangifer, Vol 11, Iss 2 (1991)
Externí odkaz:
https://doaj.org/article/f57ddc372565461d840461e291b111f6
Autor:
David R. Klein
Publikováno v:
Rangifer, Vol 10, Iss 3 (1990)
Plant parts used as forage by caribou and reindeer (Rangifer tarandus) have been collected in conjunction with studies of foraging dynamics, nutrition, growth, and population ecology of this arctic ungulate over the course of several years in Alaska
Externí odkaz:
https://doaj.org/article/b1fbc21c72e24172ae13f09b3a5b0480
Autor:
David R. Klein
Publikováno v:
Rangifer, Vol 9, Iss 1 (1989)
N. Leader-Williams. "Reindeer on South Georgia: The ecology of an introduced species." Cambridge University Press (Studies in Polar Research). 1988. 319pp. ISBN 0 521 24271 1.
Externí odkaz:
https://doaj.org/article/6b5b7a9cda934f609148b751aaccf046