Results 71 to 80 of about 57,620 (265)

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, Bradley C. Rundquist   +1 more
doaj   +1 more source

Bioclimatic, demographic and anthropogenic correlates of grizzly bear activity patterns in the Greater Yellowstone Ecosystem

Oikos, EarlyView.
Plasticity of diel activity rhythms may be a key element for adaptations of wildlife populations to changing environmental conditions. In the last decades, grizzly bears Ursus arctos in the Greater Yellowstone Ecosystem (GYE) have experienced notable environmental fluctuations, including changes in availability of food sources and severe droughts ...
Aurora Donatelli, Mark A. Haroldson, Justin G. Clapp, Paolo Ciucci, Frank T. van Manen   +4 more
wiley   +1 more source

Green-Down Protocol [PDF]

, 2003
The purpose of this resource is to observe plant green-down and report greendown data to help validate estimates of the end of the plant growing season. Students monitor the change in color of selected leaves of trees, shrubs or grasses.
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

The role of Alpine botanical gardens in integrating germplasm bank collections and mission

PLANTS, PEOPLE, PLANET, EarlyView.
This study underscores the vital role of Alpine botanical gardens (ABGs) in safeguarding Europe's alpine biodiversity amid climate change and habitat loss. By acting as living laboratories and reservoirs of plant genetic resources, ABGs bridge ex situ and in situ conservation, supporting ecosystem resilience and informing restoration strategies.
Marco Canella, Núria Beltran‐Sanz, Andreas Gröger, Špela Pungaršek, Maxime Rome, Sara Natale, Costantino Bonomi, Helen Catherine Wiesinger, Andrea Mainetti, Andrea Scapin, Marco Valecic, Simone Sensato, Monica Sommacal, Elena Piutti, Fabrizio Bottelli, Maria Teresa Pizzato, Jasmin Senn, Anne‐Catherine Monod, Nicoletta La Rocca, Francesco Dal Grande   +19 more
wiley   +1 more source

Winter Ecosystem Respiration and Sources of CO2 From the High Arctic Tundra of Svalbard: Response to a Deeper Snow Experiment [PDF]

, 2018
Currently, there is a lack of understanding on how the magnitude and sources of carbon (C) emissions from High Arctic tundra are impacted by changing snow cover duration and depth during winter.
Cooper, EJ, Czimczik, CI, Lupascu, M, Welker, JM, Welker, MC, Ziolkowski, LA   +5 more
core   +2 more sources

‘Using anuran community diversity and Pseudacris crucifer to predict landscape quality across a land use gradient'

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

Maximizing the detection probabilities of dusky grouse for population monitoring

Wildlife Biology, EarlyView.
Despite its status as a game species in the western USA, rigorous monitoring of dusky grouse Dendragapus obscurus populations is limited. Obtaining an adequate number of observations for effective population monitoring of dusky grouse is challenging due to difficult‐to‐reach montane habitats, cryptic behaviors, and limited personnel, time, and funds at
Elizabeth A. Leipold, Claire Gower, Lance B. McNew   +2 more
wiley   +1 more source

Effects of snow manipulation on larch trees in the taiga forest ecosystem in northeastern Siberia

Progress in Earth and Planetary Science, 2022
Changes in winter precipitation (snow) may greatly affect vegetation by altering hydrological and biochemical processes. To understand the effects of changing snow cover depth and melt timing on the taiga forest ecosystem, a snow manipulation experiment ...
Ruslan Shakhmatov, Shuhei Hashiguchi, Trofim C. Maximov, Atsuko Sugimoto   +3 more
doaj   +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