Results 111 to 120 of about 9,382 (219)

Spatial signatures of group cohesion

open access: yesMethods in Ecology and Evolution, Volume 17, Issue 9, Page 2755-2769, September 2026.
Abstract Wildlife populations are undergoing unprecedented changes to their spatial distributions as a result of human activities. Innovative approaches are needed to document these changes, especially in cases where sampling is sparse. Here, we contribute to the tools available in spatial ecology by developing novel metrics based on the coefficient of
Nicola E. Love, Sarah P. Otto
wiley   +1 more source

Limiting factors in caribou population ecology

open access: yesRangifer, 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.
David R. Klein
doaj   +1 more source

Calf mortality of semi-domesticated reindeer (Rangifer tarandus tarandus) in the Finnish reindeer-herding area [PDF]

open access: yes, 2013
During 1999-2008 calf mortality was studied in six reindeer-herding cooperatives in Northern Finland, where 3942 semi-domesticated reindeer (Rangifer tarandus tarandus) calves were equipped with radio mortality collars.
Maijala, Veikko   +5 more
core   +1 more source

Fish Mass Mortality Events Trigger Energy Transfer via Invertebrate‐Mediated Pathways at the Aquatic–Terrestrial Interface

open access: yesFreshwater Biology, Volume 71, Issue 9, September 2026.
ABSTRACT Animal mass mortality events are increasing under global change, generating large and unpredictable pulses of carrion that can influence ecosystem functioning. Although scavenger dynamics at individual carcasses are relatively well understood, little is known about how terrestrial vertebrate and invertebrate assemblages exploit large carrion ...
Tatiana Pessano‐Serrat   +3 more
wiley   +1 more source

Structure and annual increase in a population of West Greenland caribou (Rangifer tarandus groenlandicus)

open access: yes, 1982
During 1977-80 a large scale research program was carried out in West Greenland to study caribou ecology and population dynamics. Papers dealing with feeding ecology, range condition, calf mortality, and behaviour have been published elsewhere ...
Henning Thing, Thing, Henning
core   +1 more source

Status and trends of Rangifer tarandus and Ovibos moschatus populations in Canada [PDF]

open access: yes, 1992
We identified 97 Rangifer tarandus and 17 Ovibos moschatus populations in Canada. In July 1991, the Canadian populations totalled 1.9 to 2.6 million caribou, 13 600 reindeer and 108 600 muskoxen.
Ferguson, Michael A. D.   +1 more
core   +1 more source

Reindeer breathe less and save water in the cold

open access: yesRangifer, 1990
Simultaneous measurements of metabolic rate, respiratory minute volume, respiratory frequency, and oxygen extraction from the inspired air were obtained during treadmill exercise in Svalbard reindeer (Rangifer tarandus platyrhynchus) and Norwegian ...
Kjell J. Nilssen   +2 more
doaj   +1 more source

Habitat Selection and Intrapopulation Spatial Segregation in an Arctic Top Predator at the Southern Limit of Its Range

open access: yesGlobal Change Biology, Volume 32, Issue 9, September 2026.
Located at the southern extent of the species' range, polar bears in James Bay exhibited intrapopulation variation in space use, resulting in two spatial clusters during the on‐ice season. Some bears remained within southern James Bay, whereas others ranged more broadly north of the bay.
Tyler R. Ross   +4 more
wiley   +1 more source

Evidence of parapox-, alphaherpes- and pestivirus infections in carcasses of semi-domesticated reindeer (Rangifer tarandus tarandus) from Finnmark, Norway [PDF]

open access: yes, 2005
During March to May 2000, 48 carcasses of semi-domesticated reindeer (Rangifer tarandus tarandus) were collected on winter pastures and calving grounds from two herds in western Finnmark and two herds in eastern Finnmark, northern Norway.
Tryland, Morten   +7 more
core   +1 more source

Incorporating burn probability into spatial prioritization of woodland caribou habitat restoration

open access: yesRestoration Ecology, Volume 34, Issue 7, September 2026.
Abstract Introduction Habitat disturbance is a major driver of population declines of woodland caribou in Canada. Habitat restoration is a critical component of a successful, long‐term approach to caribou recovery; however, with limited resources, it is important to target areas where restoration efforts will provide maximum benefits to caribou.
James C. Maltman   +5 more
wiley   +1 more source

Home - About - Disclaimer - Privacy