Results 51 to 60 of about 11,327 (212)

Hyperspectral species maps and LiDAR‐based structured population models show future forest fire frequency may compromise forest resilience

Remote Sensing in Ecology and Conservation, EarlyView.
Monitoring forest recovery from disturbances at scale requires tracking tree dynamics, yet traditional ground‐based approaches are resource‐intensive. We present a pipeline to parameterize integral projection models (IPMs) using LiDAR data and hyperspectral‐based species maps to assess post‐fire recovery across large, forested areas at the Caribou ...
Jessica McLean, Tommaso Jucker, Alice Rosen, Sean M. McMahon, Roberto Salguero‐Gómez   +4 more
wiley   +1 more source

Classification of tree species and standing dead trees in Boreal forests using UAV‐based RGB, multispectral, and LiDAR point clouds

Remote Sensing in Ecology and Conservation, EarlyView.
We evaluated single‐ and multi‐sensor UAV approaches for classifying tree species and standing dead trees in boreal forests, focusing on key biodiversity indicators such as European aspen. Using spectral and structural features extracted from RGB, multispectral (MSP), and LiDAR point clouds for 1,205 field‐measured trees, we compared classification ...
Anton Kuzmin, Lauri Korhonen, Topi Tanhuanpää, Mikko Kukkonen, Matti Maltamo, Timo Kumpula   +5 more
wiley   +1 more source

THE COMPOSITION OF TOTAL LIPID FRACTIONS AND FATTY ACIDS IN BUDS OF BIRCH SPECIES DURING BUD BREAK

Transactions of the Karelian Research Centre of the Russian Academy of Sciences, 2018
In the process of bud break in downy birch Betula pubescens Ehrh., silver birch Betula pendula Roth, and Karelian birch Betula pendula var. carelica Merckl., total lipid (TL) content in buds varied within 27–45 % of absolute dry weight (a. d. w.).
Nadezhda Chernobrovkina, Irina Morozova, Maria Ilyinova   +2 more
doaj   +1 more source

Monitoring GPS‐collared moose by ground versus drone approaches: efficiency and disturbance effects

Wildlife Biology, EarlyView.
Efficient wildlife management requires precise monitoring methods, for example to estimate population density, reproductive success, and survival. Here, we compared the efficiency of drone (equipped with a RGB camera) and ground approaches to detect and observe GPS‐collared female moose Alces alces and their calves. We also quantified how drone (n = 42)
Martin Mayer, Erlend Furuhovde, Kristoffer Nordli, Giorgia Myriam Ausilio, Petter Wabakken, Ane Eriksen, Alina L. Evans, Karen Marie Mathisen, Barbara Zimmermann   +8 more
wiley   +1 more source

The dynamics of daily water regime of Betula pendula Roth leaves and their adaptive reaction

Інтродукція Рослин, 2010
The results of investigation water regime influence on accumulation the content of lipid peroxidation product and free proline in Betula pendula Roth leaves were shown.
N.V. Rositska, N.V. Zaimenko
doaj   +1 more source

A high‐altitude thermal infrared method for estimating moose abundance and demography in Rocky Mountain National Park, USA

Wildlife Biology, EarlyView.
Resource managers require accurate estimates of large herbivore abundance and demography to maintain ecological integrity. Common methods to count these species, including observations from low altitude helicopter flights, may conflict with other protected area management objectives and struggle to produce precise estimates for more cryptic species. To
Hanem G. Abouelezz, N. Thompson Hobbs
wiley   +1 more source

Climate change impacts on the predicted geographic distribution of Betula tianschanica Rupr

Frontiers in Plant Science
IntroductionBetula tianschanica Rupr. is distributed in regions such as China, Kyrgyzstan, and Tajikistan. Owing to the impacts of climate change, it is increasingly threatened by habitat fragmentation, resulting in a precipitous decline in its ...
Hang Zhou, Hang Zhou, Ao Li, Ao Li, Xuequn Luo, Xuequn Luo, Jiafeng Wang, Jiafeng Wang, Yihong Xie, Zhongping Lin, Donglai Hua   +10 more
doaj   +1 more source

Does a decision support tool designed to depict West Nile virus risk explain variation in ruffed grouse Bonasa umbellus use of managed forests?

Wildlife Biology, EarlyView.
Infectious diseases are commonly cited as significant contributors to wildlife population declines. It is, therefore, important to investigate the extent to which tools designed to mitigate the effects of infectious diseases explain wildlife responses to habitat management.
Jacob Goldman, Darin J. McNeil, Lauren M. Chronister, Randall Koleck, Samuel Lapp, Jeffery T. Larkin, Reina Tyl, Justin Kitzes, Jeffery L. Larkin   +8 more
wiley   +1 more source

Betula pendula 'Youngii': 'Youngii' European Birch

EDIS, 2003
Youngs Weeping European Birch is graceful, weeping ornamental with wonderful yellow fall color but is susceptible to fatal attacks of bronze birch borer. The leaves are often browned by birch leaf miner.
Edward Gilman, Dennis Watson
doaj   +1 more source

Dietary shift of the common leopard Panthera pardus in and around Bani Wildlife Sanctuary, western Himalayas: implications for conservation and human–wildlife conflict

Wildlife Biology, EarlyView.
Understanding the dietary patterns of apex predator like the common leopard Panthera pardus is essential for evaluating their ecological role, particularly in landscapes where human–wildlife conflict is prevalent. In this context, this study investigates the seasonal diet composition of the common leopard in and around the Bani Wildlife Sanctuary, a ...
Iyaz Quyoom, Bilal A. Bhat, Arif Nabi Lone, Wasim Sajad Malik   +3 more
wiley   +1 more source