Results 31 to 40 of about 54,732 (337)

Does Palsa Thaw in Northern Finland Contribute to Remobilisation of Metals Accumulated in Peat Into Surface Waters?

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Permafrost is rapidly degrading in the sporadic zone, including palsa mires in Scandinavia. Peatlands in the area have likely accumulated heavy metals from atmospheric deposition of industrial contaminants in the wider region. As the palsa mire chemical composition is not well known, and in other permafrost regions the permafrost thaw may ...
Joanna Katarzyna Jóźwik   +7 more
wiley   +1 more source

Potential impact of restricted caribou (Rangifer tarandus) consumption on anemia prevalence among Inuit adults in northern Canada

open access: yesBMC Nutrition, 2019
Background Caribou (Rangifer tarandus) is the top dietary source of iron and several micronutrients necessary for red blood cell production (erythropoiesis) in the contemporary diet of Inuit adults across Canada.
Tiff-Annie Kenny   +5 more
doaj   +1 more source

Comparative patterns of winter habitat use by muskoxen and caribou in northern Alaska [PDF]

open access: yes, 1992
Thesis (M.S.) University of Alaska Fairbanks, 1992Snow depth and hardness strongly influenced selection of feeding zones, (i.e., those areas used for foraging), in late winter by both muskoxen (Ovibos moschatus) and caribou (Rangifer tarandus grand) in ...
Biddlecomb, Mark Edward
core  

Forbs in Viking lands: the effect of disturbing dominant graminoids on recruitment in tundra grasslands

open access: yesOikos, EarlyView.
Grasslands, by definition, are dominated by graminoids. Nevertheless, forbs also make up a substantial part of vascular plant diversity in grasslands and are important resources of mammalian herbivores. However, forb recruitment is constrained by successful dominant graminoids, limiting access to safe sites for germination.
Gerardo Celis   +5 more
wiley   +1 more source

Use of island and mainland shorelines by woodland caribou during the nursery period in two northern Ontario parks

open access: yesRangifer, 2011
Predation is considered a primary limiting factor of woodland caribou (Rangifer tarandus caribou) populations across North America. Caribou are especially vulnerable to predation during their first few weeks of life and have evolved space-use strategies ...
Natasha L. Carr   +3 more
doaj   +1 more source

Addressing biases in sliding window analysis gives new insight into the response of parturition date to weather in a wild mammal

open access: yesOikos, EarlyView.
Animal breeding phenology in temperate and high latitude regions is often predicted by weather variables, such as temperature. Much work on this topic has focused on taxonomic groups that employ adaptive plastic responses to annual variation in an environmental cue, with analytical approaches developed to determine when weather has an effect and the ...
Kirsty H. Macphie   +6 more
wiley   +1 more source

Ecosystem management and the conservation of caribou habitat in British Columbia

open access: yesRangifer, 1998
Woodland caribou (Rangifer tarandus caribou) in British Columbia inhabit a wide variety of forest ecosystems. Numerous research projects have provided information that has been used to develop caribou habitat management recommendations for different ...
Dale R. Seip
doaj   +1 more source

United Caribou Association of the Nunamiut [PDF]

open access: yes, 2016
Presented to the Faculty Of the University of Alaska Anchorage In Partial Fulfillment of the Requirements for the Degree of MASTER OF PUBLIC HEALTHCaribou is one food source that the people in Anaktuvuk Pass, Alaska rely on as a dependable and ...
Tooyak, Andrew Jr
core  

Trap‐dependence in capture–recapture studies: empirical evidence in vertebrates and biological meaning

open access: yesOikos, EarlyView.
Capture–recapture (CR) models have been used for decades to estimate population size and demographic rates in natural populations from the monitoring of individuals. One of the most frequent deviations from assumptions required in CR studies is the immediate trap‐dependence that corresponds to the correlation between capture events. We review empirical
Jessica Cachelou   +4 more
wiley   +1 more source

Social-ecological soundscapes: examining aircraft-harvester-caribou conflict in Arctic Alaska [PDF]

open access: yes, 2017
Thesis (M.S.) University of Alaska Fairbanks, 2017As human development expands across the Arctic, it is crucial to carefully assess the impacts to remote natural ecosystems and to indigenous communities that rely on wild resources for nutritional and ...
Stinchcomb, Taylor R.
core  

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