Results 131 to 140 of about 25,048 (251)
ERTS-1 evaluation of natural resources management applications in the Great Basin [PDF]
The relatively cloud free weather in the Great Basin has allowed the accumulation of several dates of excellent ERTS-1 imagery. Mountains, valleys, playas, stream courses, canyons, alluvial fans, and other landforms are readily delineated on ERTS-1 ...
Lorain, G., Tueller, P. T.
core +1 more source
Soil-surface CO2 flux and growth in a boreal Norway spruce stand [PDF]
Global warming is predicted to affect the carbon balance of forests. A change in the carbon balance would give a positive or negative feedback to the greenhouse effect, which would affect global warming.
Strömgren, Monika
core
Hidden Markov Quantile Models With Trends for Analysing Air Temperature Data
There is the question of whether climate change, expressed by time‐trends in temperature, is of a heterogeneous nature or not. Here, the time‐trend heterogeneity argument has been investigated using Hidden Markov (HM) quantile time‐trends models in temperature time series.
Georgios Tsiotas +2 more
wiley +1 more source
A comparative study of satellite and ground-based phenology [PDF]
Long time series of ground-based plant phenology, as well as more than two decades of satellite-derived phenological metrics, are currently available to assess the impacts of climate variability and trends on terrestrial vegetation.
Appenzeller, C. +3 more
core
Species respond to climate change through phenological and spatial shifts. Herbivorous mammals, in particular, are vulnerable due to their direct dependence on seasonal vegetation and the potential misalignment between their reproductive cycles and shifting food availability.
Farid Salmanpour +5 more
wiley +1 more source
Annual survival in a dynamic species: pronghorn survival patterns across their northern range
Quantifying variation in demographic patterns, such as survival and recruitment, is critical for understanding population dynamics and informing evidence‐based and adaptive wildlife management. In this study, we leverage an extensive dataset from over 1000 GPS collared pronghorn Antilocapra americana to provide the first large‐scale evaluation of ...
Molly C. McDevitt +5 more
wiley +1 more source
Secondary reproductive strategies in Pacific black brant (Branta bernicla nigricans) [PDF]
Thesis (M.S.) University of Alaska Fairbanks, 1999Waterfowl are known to use secondary reproductive strategies, both extra-pair copulations and intraspecific brood parasitism, to increase fitness. We used five polymorphic microsatellite loci to determine
Svete, Pamela A.
core
The effective implementation of new technologies for wildlife population monitoring is limited by knowledge of factors that impact their efficacy. Population monitoring of harlequin ducks Histrionicus histrionicus on their breeding streams in Montana and Idaho in the Northern Rocky Mountains, has historically relied on ground‐based foot surveys (GBS ...
Holli A. Holmes +10 more
wiley +1 more source
Wet and cold biases on the Tibetan Plateau (TP) commonly exist in global and regional climate simulations. Previous studies have explored the possible causes of wet and cold biases and contributed to reducing these biases. However, the connection between
Xin Miao +5 more
doaj +1 more source
Changes in snow cover climatology and its elevation dependency over Romania (1961–2020)
Study Region: Romanian territory and the Carpathian Mountains, Romania.Study focus: We provide a consistent picture of long-term changes in relevant snow cover characteristics, including phenology (timing of the snow onset and melting), snow cover ...
Vlad-Alexandru Amihăesei +5 more
doaj +1 more source

