Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Samuel J. Barry"'
Publikováno v:
Rangifer, Vol 34, Iss 1 (2014)
We investigated the status of caribou classified as Rangifer tarandus pearyi by DNA analyses, with an emphasis on those large-bodied caribou identified as ultra pearyi that were collected in summer 1958 on Prince of Wales Island, south-central Canadi
Externí odkaz:
https://doaj.org/article/c6ac948af0bc4c5b919a7b8a813917d9
Publikováno v:
Rangifer, Vol 27, Iss 4 (2007)
Extended: In 1980 the caribou (Rangifer tarandus) on Prince of Wales, Russell, and Somerset islands represented a healthy geographic population of an Arctic-island caribou ecotype on the southern tier of Canadian Arctic Islands. Those caribou exhibit
Externí odkaz:
https://doaj.org/article/32fac827721440a59abe67a63d5da130
Publikováno v:
Rangifer, Vol 27, Iss 4 (2007)
Use of the subspecies as the basic unit in the conservation of endangered caribou (Rangifer tarandus) would produce a “melting pot” end-product that would mask important genotypic, phenotypic, ecological, and behavioral variations found below the
Externí odkaz:
https://doaj.org/article/da86561ea7c64ad48ad44330d46ab3c9
Publikováno v:
Rangifer, Vol 25, Iss 4 (2005)
The estimate of 25 845 Peary caribou (Rangifer tarandus pearyi) on the Queen Elizabeth Islands (QEI) in the Canadian High Arctic in summer 1961 is the only nearly range-wide 'benchmark' for the past number of caribou. No variances or confidence inter
Externí odkaz:
https://doaj.org/article/0948ec4e6d924254b9c3cac22c7773c6
Publikováno v:
Rangifer, Vol 25, Iss 4 (2005)
Twenty-nine yearling reindeer (Rangifer tarandus) were released on St. Matthew Island in the Bering Sea Wildlife Refuge in 1944: 24 females and five males. They were reported to have increased to 1350 reindeer by summer 1957 and to 6000 by summer 196
Externí odkaz:
https://doaj.org/article/3e8c32dd2aaa49669df73883f8506a92
Publikováno v:
Rangifer, Vol 25, Iss 4 (2005)
The islands of the Canadian Arctic Archipelago lie immediately north of mainland North America in the Arctic Ocean. They are surrounded by ice for most of each year. Caribou (Rangifer tarandus) cross the sea ice in seasonal migrations among the islan
Externí odkaz:
https://doaj.org/article/b75bc34955cc476c99e7f89f71d5dbd4
Publikováno v:
Rangifer, Vol 23, Iss 2 (2003)
A generalised model for herbivores experiencing abundant forage over time is that their numbers erupt and then decline. This model has been applied to fluctuations in caribou (Rangifer tarandus) populations especially those on islands. Since this gen
Externí odkaz:
https://doaj.org/article/4e2d71c9acf64fa29706368569333ebc
Autor:
Frank L. Miller, Samuel J. Barry
Publikováno v:
Rangifer, Vol 23, Iss 5 (2003)
Spatial and temporal use of seasonal, and collectively, annual ranges by four female Peary caribou (Rangifer taran-dus pearyi) was investigated using satellite telemetry. Knowledge of how caribou use space allows a better understanding of their deman
Externí odkaz:
https://doaj.org/article/62f051e8311149acb11f8f5ac0d5ee7c
Autor:
Donald C. Thomas, Samuel J. Barry
Publikováno v:
Rangifer, Vol 10, Iss 3 (1990)
The age-specific fecundity of the Beverly herd of barren-ground caribou (Rangifer tarandus groenlandicus) was monitored each winter from 1979-80 through 1986-87. Fecundity in 840 females increased with age from 12% in yearlings to 86% at age 5 years
Externí odkaz:
https://doaj.org/article/fc4cbc83b365433f9e2a0540280b7cd5
Autor:
Donald C. Thomas, Samuel J. Barry
Publikováno v:
Rangifer, Vol 10, Iss 3 (1990)
A survivorship curve and cohort-specific life table were developed for female barren-ground caribou (Rangifer tarandus groenlandicus) sampled from the Beverly herd from 1980 through 1987. Significant (P~< 0.05)differences among yearly samples in the
Externí odkaz:
https://doaj.org/article/f19a3ef61ba84391afe69a9ead51b3fe