Results 61 to 70 of about 20,566 (234)
A 20-Year MODIS-Based Snow Cover Dataset for Svalbard and Its Link to Phenological Timing and Sea Ice Variability [PDF]
Remote Sensing, 2020 The climate in Svalbard has been warming dramatically compared with the global average for the last few decades. Seasonal snow cover, which is sensitive to temperature and precipitation changes, is therefore expected to undergo both spatial and temporal changes in response to the changing climate in Svalbard.
Hannah Vickers +2 more
openaire +3 more sources
Density‐dependent habitat selection in plains bison
The Journal of Wildlife Management, EarlyView.Using GPS collar data, we tested whether habitat selection of plains bison in Grasslands National Park, Canada, was density dependent. Bison selected for areas of high vegetation productivity far from human activity when population density was low and increased use of lower productivity habitat closer to disturbance as density increased.
Michelle L. Sawatzky +3 more
wiley +1 more source
The application of time-series MODIS NDVI profiles for the acquisition of crop information across Afghanistan [PDF]
, 2014 We investigated and developed a prototype crop information system integrating 250 m Moderate Resolution Imaging Spectroradiometer (MODIS) normalized difference vegetation index (NDVI) data with other available remotely sensed imagery, field data, and ...
Juniper, Graham R. +3 more
core +1 more source
Seasonal variation of leaf functional traits in sub‐Arctic plants
Oikos, EarlyView.Leaf functional traits are informative of plant fitness and functions in ecosystems. These functional traits and their variation across geographic extents are much studied but less is known about their temporal variation over a growing season. Here, we provide an analysis of the seasonal variation in six leaf functional traits of 11 sub‐Arctic vascular
Pekka Niittynen +2 more
wiley +1 more source
Movement Ecology, 2022 Background Migration is a widespread strategy among ungulates to cope with seasonality. Phenology, especially in seasonally snow-covered landscapes featuring “white waves” of snow accumulation and “green waves” of plant green-up, is a phenomenon that ...
Malena Candino +2 more
doaj +1 more source
Quarterly Journal of the Royal Meteorological Society, EarlyView.We document the protocol and first results from the first ever coordinated multimodel variable‐resolution experiment set with refinement over the polar regions. We find that the refinement generally yields model‐dependent effects. The most consistent improvement is an amelioration of the upper‐level cold bias in the polar regions that translates into ...
Lise Seland Graff +8 more
wiley +1 more source
, 2003 The purpose of this resource is to observe budburst on selected trees at a Land Cover or Phenology Site. All students will learn about hummingbird natural history and ecology.
The GLOBE Program, University Corporation for Atmospheric Research (UCAR)
core
Phenology of Racomitrium lanuginosum growing at a seasonally snow-covered site on Mt. Fuji, Japan
Polar Science, 2016 Abstract We investigated the seasonality of the development of the gametangia and sporophytes of Racomitrium lanuginosum growing at a seasonally snow-covered site (ca. 2200 m altitude) on Mt. Fuji, Central Honshu, Japan. Shoots of R. lanuginosum were collected every 2 weeks during the snow-free period (June–November) in 2014.
Fumino Maruo, Satoshi Imura
openaire +1 more source
Wildlife Biology, EarlyView.As human‐modified landscape and climate changes proliferate, maintaining biodiversity and understanding the function and quality of available habitat is imperative. As anurans (frogs/toads) such as Pseudacris crucifer, can be an indicator species of habitat quality and ecosystem productivity, studying the anuran community in a mixed‐land use region ...
Brian C. Kron, Karen V. Root
wiley +1 more source
Semi-Automatic Fractional Snow Cover Monitoring from Near-Surface Remote Sensing in Grassland
Remote Sensing, 2021 Snow cover is an important variable in both climatological and hydrological studies because of its relationship to environmental energy and mass flux. However, variability in snow cover can confound satellite-based efforts to monitor vegetation phenology.
Anaí Caparó Bellido +1 more
doaj +1 more source