Results 111 to 120 of about 17,761 (305)

Effects of Mercury Deposition and Coniferous Forests on the Mercury Contamination of Fish in the South Central United States

open access: yes, 2016
Mercury (Hg) is a toxic metal that is found in aquatic food webs and is hazardous to human and wildlife health. We examined the relationship between Hg deposition, land coverage by coniferous and deciduous forests, and average Hg concentrations in ...
Matthew M. Chumchal (1996594)   +5 more
core   +1 more source

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

open access: yesRemote 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   +5 more
wiley   +1 more source

Silvicultural Assessment of Complex Logging in the Forests of the Vologda Region

open access: yesЛесной журнал
The forest fund of the Vologda Region is widely represented by secondary and derivative deciduous-coniferous forests. The search for effective methods of managing them in order to increase the stock and accelerate the cultivation of valuable coniferous ...
Sergey A. Korchagov   +4 more
doaj   +1 more source

Meta-analysis of avian and small-mammal response to fire severity and fire surrogate treatments in U.S. fire-prone forests

open access: yes, 2012
Management in fire-prone ecosystems relies widely upon application of prescribed fire and/or fire surrogate (e.g., forest thinning) treatments to maintain biodiversity and ecosystem function.
Joseph B. Fontaine   +3 more
core   +1 more source

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

open access: yesWildlife 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   +8 more
wiley   +1 more source

Great Tit (Parus major) Nestlings Have Longer Telomeres in Old‐Growth Forests Than in Young Forests

open access: yesEcology and Evolution
Modification and deterioration of old‐growth forests by industrial forestry have seriously threatened species diversity worldwide. The loss of natural habitats increases the concentration of circulating glucocorticoids and incurs chronic stress in ...
Ronalds Krams   +7 more
doaj   +1 more source

Unraveling the impact of dog‐friendly spaces on urban–wildland pumas and other wildlife

open access: yesWildlife Biology, EarlyView.
As the most widespread large carnivore on the planet, domestic dogs Canis lupus familiaris can pose a major threat to wildlife, even within protected areas (PAs). Growing human presence in PAs, coupled with increasing pet dog ownership underscores the urgency to understand the influence of dogs on wildlife activity and health.
Alys Granados   +3 more
wiley   +1 more source

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