Results 251 to 260 of about 30,755 (314)

Micro‐habitat selection by boreal woodland caribou improves access to food

Wildlife Biology, EarlyView.
Bio‐logging sensors attached to radiotelemetry receivers have great potential to transform our understanding of the ecological, physiological, and energetic constraints that shape patterns of wildlife movement under field conditions. We used video camera collars to assess microhabitat selectivity by woodland caribou Rangifer tarandus in boreal forests ...
Ian D. Thompson, Philip A. Wiebe, Arthur R. Rodgers, Douglas Reid, James A. Baker, Brent R. Patterson, Eric McNeill, Romain Dejeante, John M. Fryxell   +8 more
wiley   +1 more source

Quantifying microhabitat selection of snowshoe hares using forest metrics from UAS‐based LiDAR

Wildlife Biology, EarlyView.
Identifying the spatial and temporal scale at which animals select resources is critical for predicting how populations respond to changes in the environment. The spatial distribution of fine‐scale resources (e.g. patches of dense vegetation) are often linked with critical life‐history requirements such as denning and feeding sites.
Alexej P. K. Sirén, Franklin Sullivan, Rachel Cliché, Jeremy Goetz, Leighlan S. Prout, Jillian Kilborn, Katelyn Courtot, Michael Palace   +7 more
wiley   +1 more source

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The boreal forests and climate

Quarterly Journal of the Royal Meteorological Society, 1992
AbstractThe sensitivity of modelled northern hemisphere climate to modification of the snow‐covered surface albedo is investigated using the United Kingdom Meteorological Office (UKMO) general circulation model (GCM). the UKMO GCM is a global, primitive‐equation model with 11 layers in the atmosphere.
G. Thomas, P. R. Rowntree
openaire   +1 more source

Boreal Forests and Tundra

Water, Air, & Soil Pollution, 1993
The circumpolar boreal biomes cover ca. 2 109 ha of the northern hemisphere and contain ca. 800 Pg C in biomass, detritus, soil, and peat C pools. Current estimates indicate that the biomes are presently a net C sink of 0.54 Pg C yr-1. Biomass, detritus and soil of forest ecosystems (including ca. 419 Pg peat) contain ca.
M. J. Apps, W. A. Kurz, R. J. Luxmoore, L. O. Nilsson, R. A. Sedjo, R. Schmidt, L. G. Simpson, T. S. Vinson   +7 more
openaire   +1 more source

Boreal forests on fire - Decadal wildfire impacts on boreal forest microclimate

2023
Wildfire is the most important disturbance agent in boreal forests. These disturbances play a major role in the boreal forest carbon cycle. They lead to direct CO2 and CH4 emissions during the active fire phase and to long-lasting post-fire impacts on net CO2 and CH4 fluxes through changes in forest structure and in microclimatic conditions.
Manuel Helbig, Lilly Daw
openaire   +1 more source

Boreal Forest and Forest Fires

2020
Boreal forest has played a role as sink of atmospheric CO2 due to the slow growth of black spruce; however, changes in source of atmospheric CO2 by forest fires and recent warming have significantly triggered modulation in physiological ecology and biogeochemistry over the boreal forest of Alaska.
Yongwon Kim, Hideki Kobayashi, Shin Nagai, Masahito Ueyama, Bang-Yong Lee, Rikie Suzuki   +5 more
openaire   +1 more source

Constraints to growth of boreal forests

Nature, 2000
Understanding how the growth of trees at high latitudes in boreal forest is controlled is important for projections of global carbon sequestration and timber production in relation to climate change. Is stem growth of boreal forest trees constrained by the length of the growing season when stem cambial cells divide1, or by the length of the period when
P, Jarvis, S, Linder
openaire   +2 more sources

Radar modeling of a boreal forest

IEEE Transactions on Geoscience and Remote Sensing, 1991
The authors report on the use of microwave modeling, ground truth, and synthetic aperture radar (SAR) data to investigate the characteristics of forest stands. A mixed coniferous forest stand has been modeled at SAR frequencies (P-, L-, and C-bands).
Narinder S. Chauhan, Roger H. Lang, Kenneth Jon Ranson   +2 more
openaire   +1 more source

The boreal forest as a cultural landscape

Annals of the New York Academy of Sciences, 2012
Because of its generally low density of humans and few settlements, the circumpolar boreal forest is often viewed as an untouched wilderness. However, archeological evidence indicates that humans have inhabited the region since the continental glaciers disappeared 8,000–12,000 years ago.
Edward A, Johnson, Kiyoko, Miyanishi
openaire   +2 more sources