Results 101 to 110 of about 11,726 (246)

Validating antler‐ and movement‐based estimates of caribou reproduction using video camera collars Validation des estimations de la reproduction du caribou basées sur la rétention des bois et  sur le déplacement à l'aide de colliers‐caméras

The Journal of Wildlife Management, EarlyView.
We used GPS video camera collar data from barren‐ground caribou in the Porcupine and Western Arctic herds to validate antler‐ and movement‐based methods for estimating annual reproductive metrics. Antler retention was highly accurate for estimating parturition, but the movement methods we tested performed marginally for estimating parturition and ...
Heather E. Johnson, Emily C. Racenet, Gabrielle L. Coulombe, Matthew D. Cameron, Kyle Joly, Martin Kienzler, Michael J. Suitor   +6 more
wiley   +1 more source

A digital forecasting model for snowdrifts extent on transport routes in the subarctic zone

Известия высших учебных заведений: Нефть и газ
This paper presents a specific area within engineering geodynamics: the processes of snowdrift and their impact on the efficiency of engineering and economic development in the Arc-tic regions of Russia.
I. S. Belyaev, O. P. Ryseva, V. A. Gromov, V. A. Ruzhev, С. P. Pirogov   +4 more
doaj   +1 more source

Heterogeneity and Controlling Mechanisms of Soil Organic Carbon Stocks Across Erosion Zones in China Under Future Climate Scenarios

Land Degradation &Development, EarlyView.
ABSTRACT Soil organic carbon (SOC), as a key indicator of global carbon cycling and climate change response, plays a critical role in regional ecological security and agricultural sustainability. This study employs three machine learning models including the LightGBM, XGBoost, and random forest to simulate the spatial distribution of topsoil SOC stocks
Xinxin Jin, Xintong Liu, Qianlai Zhuang, Zijiao Yang, Zicheng Wang, Chen Li, Shuai Wang, Yang Wang   +7 more
wiley   +1 more source

Land Use Spatial Optimization Based on Multi‐Objective Ant Colony Algorithm and FLUS Model: A Case Study of Korla City and Tiemenguan City, China

Land Degradation &Development, EarlyView.
ABSTRACT In southern Xinjiang, China, scarce land and water resources and fragile ecosystems have intensified land use conflicts, making land resource allocation optimization essential for sustainable development in arid oasis areas. Focusing on Korla and Tiemenguan, this study aims to coordinate economic benefits, ecological benefits, and food ...
Kaifa Zhang, Xiaojun Yin, Benhao Li, Keke Chang, Xinghai Zhang, Tao Deng   +5 more
wiley   +1 more source

Establishing Monthly Benchmarks for Erosion Control and Vegetation Restoration Targets Across the Loess Plateau

Land Degradation &Development, EarlyView.
ABSTRACT Establishing scientifically grounded soil erosion control targets and feasible vegetation restoration strategies is crucial for high quality development of the Chinese Loess Plateau which is severely affected by soil erosion. Currently, the commonly used tolerable soil loss (TSL) is inadequate for addressing the spatial heterogeneity in ...
Ye Wang, Haijing Shi, Xihua Yang, Rui Li, Hongming Zhang, Jiaqiong Zhang, Wenyi Sun, Yangyang Liu, Qinggaozi Zhu, Guang Yang   +9 more
wiley   +1 more source

Afforestation Partially Offsets Losses of Soil Conservation Services and Carbon Stock From Direct and Indirect Urban Expansion in China

Land Degradation &Development, EarlyView.
ABSTRACT Urban expansion has exerted both direct and indirect impacts on natural land and ecosystem services it supports, driven by increasing population and food demand, yet these underlying pathways remain insufficiently distinguished. Here, we quantified the losses of soil conservation services (water erosion regulation and sandstorm prevention) and
Shuai Liu, Ting Hua, Shurong Zhang, Yiman Zhang, Wenwu Zhao   +4 more
wiley   +1 more source

Towards a spatial snow climatology for Switzerland: Comparison and validation of existing datasets

Meteorologische Zeitschrift
In the European Alps, surface snow cover is of high relevance and a major factor for environmental, ecological and economical systems. The provision of accurate and timely climatological information on the spatio-temporal distribution of Alpine snow ...
Simon C. Scherrer, Monika Göldi, Stefanie Gubler, Christian R. Steger, Sven Kotlarski   +4 more
doaj   +1 more source

Revealing Dust Source Changes in East Asia From Past to Future: An Interpretable Deep Learning Approach

Land Degradation &Development, EarlyView.
ABSTRACT Aeolian dust source areas are controlled by climate and human activities and are closely associated with land degradation, yet their long‐term evolution under global warming remains insufficiently quantified. An integrated framework that couples a U‐Net segmentation model with Shapley Additive Explanations (SHAP) was built to map and attribute
Yanyu Li, Qizhong Wu, Xueshun Chen, Jiang Yue, Jieying He, Huaqiong Cheng   +5 more
wiley   +1 more source

Homogenous Cell Transplantation Trials in Parkinson's Disease: A Systematic Review and Meta‐Analysis

Movement Disorders Clinical Practice, EarlyView.
Abstract Background The transplantation of homogenous cells has emerged as an investigational strategy for Parkinson's disease (PD), offering an alternative to symptomatic treatment. Objective We performed a systematic review and meta‐analysis to assess its clinical efficacy and safety.
Nolan Reinisch, Athena Mancini, Adham Elsherbini, Jason Yuen, Andres Lozano   +4 more
wiley   +1 more source

Integrating Grain to Ground Motion Data for Critical Rock Bridge and Slope Failure Analysis

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Rock masses can fail catastrophically with little warning, yet their stability depends on hidden internal connections that channel forces and localise damage. Among these, rock bridges–a “known unknown” in slope mechanics–lock fractured rock and control how failure unfolds, but their concealed geometry and uncertain strength obscure where and ...
Antoinette Tordesillas, Shuo Zhou, Leonnardo Probst, Pat Bellett, Michal Nitka, Jacek Tejchman   +5 more
wiley   +1 more source