Results 141 to 150 of about 20,566 (234)

Combining non‐invasive survey methods increases cumulative detection probability for breeding harlequin ducks Histrionicus histrionicus

Wildlife Biology, Volume 2026, Issue 3, May 2026.
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, Hannah M. Specht, Lisa J. Bate, Kristina Smucker, Casey McCormack, Cara Staab, Thomas W. Franklin, Dan Bachen, Bryce Maxell, Allison J. Puchniak Begley, Joshua J. Millspaugh   +10 more
wiley   +1 more source

Observation and Coordination Needs for Current, Near‐Future, and Next Generation Earth‐Observing SAR Systems

Earth and Space Science, Volume 13, Issue 5, May 2026.
Abstract This paper summarizes an evaluation by experts of how coordination of Earth‐observing Synthetic Aperture Radar (SAR) missions among the world's space agencies could advance toward game‐changing scientific discoveries and fully realizing SAR's practical capability to address many issues facing society.
Cathleen E. Jones, Ake Rosenqvist, Björn Rommen, Magdalena Fitrzyk, Eric Rignot, Bernd Scheuchl, Yujie Zheng, Andrew Hooper, Mark Simons, Tomokazu Kobayashi, Paul Siqueira, Maurizio Santoro, Takeo Tadono, Laura Hess, Heather McNairn, Laura Frulla, Malin Johansson, Wolfgang Dierking, Line Rouyet, Annett Bartsch, Paco Lopez Dekker, Johnny A. Johannessen   +21 more
wiley   +1 more source

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

Intercomparison of Methods for Disentangling Local and Nonlocal Biophysical Impacts of Land Cover Changes

Earth's Future, Volume 14, Issue 5, May 2026.
Abstract The climatic impacts of land cover changes (LCCs) due to altered biophysical properties include local effects in LCC areas and nonlocal effects in both LCC and non‐LCC areas resulting from atmospheric feedback. The biophysical impacts of LCC simulated by climate models typically represent only the total effects, that is, the sum of local and ...
Zijun Zhao, Yan Li, Ru Xu, Ronny Meier, Laibao Liu, Liang Chen, Lei Zhao, Yiqing Liu, Shuangshuang Zi, Difei Zhao   +9 more
wiley   +1 more source

Flowering phenology of alpine plant communities along a gradient of snowmelt timing [PDF]

, 1999
Flowering phenology of alpine plant communities was observed at seven sites (two fellfields, two alpine meadows, and three snowbeds) in 1996 and 1997 in the Taisetsu Mts., northern Japan. These sites were selected along a gradient of snowmelt time.
Kudo,Gaku, Suzuki,Shizuo
core   +1 more source

Tracking Water Dynamics of a Temperate Forest Under Drought and Non‐Drought Conditions Using Active and Passive Microwave and Optical Remote Sensing

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 5, May 2026.
Abstract Water status, water dynamics, and ecohydrological resilience of a protected German beech forest during the 2018–2020 multi‐year drought are assessed using over six years of multi‐frequency remote sensing data, integrating active, passive, and optical sensors with varying canopy penetration depths, highlighting the importance of monitoring ...
Florian M. Hellwig, Anke Fluhrer, Clémence Dubois, Konstantin Schellenberg, David Chaparro, Markus Zehner, Anne Klosterhalfen, María Piles, Christiane Schmullius, Harald Kunstmann, Thomas Jagdhuber   +10 more
wiley   +1 more source

Fecal DNA metabarcoding reveals seasonal and annual variation in willow ptarmigan diet

Royal Society Open Science
Understanding spatio-temporal variation in the diet of alpine herbivores is important to predict how a changing climate will affect these species in the future. We examined the spatio-temporal variation in willow ptarmigan (Lagopus l. lagopus) diet using
Elise W. Ingvaldsen, Jan E. Østnes, Oddmund Kleven, Marie Davey, Frode Fossøy, Erlend B. Nilsen   +5 more
doaj   +1 more source

Capturing Spatiotemporal and Subgrid Variability in Global Land Surface Albedo Parameterization

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 5, May 2026.
Abstract Accurate surface albedo parameterization is critical for modeling Earth's energy balance. Yet, many schemes rely on static look‐up tables or semi‐empirical formulations that fail to capture spatiotemporal variations and complex radiative interactions. This study develops a physics‐informed machine‐learning parameterization using 19 years (2003–
Akarsh Ralhan, Xin‐Zhong Liang
wiley   +1 more source

Integrating Maximum Entropy Production Theory and Machine Learning to Improve Global Evapotranspiration Modeling

Water Resources Research, Volume 62, Issue 5, May 2026.
Abstract Accurate estimation of terrestrial evapotranspiration (ET) is vital for understanding global water and energy cycles. However, current global ET estimations are not well constrained. This study introduces an integrated framework combining the Maximum Entropy Production (MEP) theory with Random Forest (RF) model to improve global ET estimation.
Donghui Xu, Valeriy Ivanov, Vinh Ngoc Tran, Dongyu Feng, Gautam Bisht, Jingfeng Wang, L. Ruby Leung   +6 more
wiley   +1 more source

Reproductive phenology of subalpine moss, Polytrichum ohioense Ren. et Card. [PDF]

, 2002
The reproductive phenology of Polytrichum ohioense was investigated in a sub-alpine forest at the foot of Mt. Tyausu, in the Yatsugatake Mountains, Central Honshu, Japan.
Eri Ayukawa, Hiroshi Kanda, Sakae Kudoh, Satoshi Imura   +3 more
core   +1 more source