Results 181 to 190 of about 76,802 (312)
Cascade Iodine-Catalyzed Synthesis of Nitrogenated Aromatics from 2-Pyrones. [PDF]
Souza BB +4 more
europepmc +1 more source
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
Predation by pine martens Martes martes and red foxes Vulpes vulpes is an important factor influencing the population dynamics of capercaillie Tetrao urogallus. However, there is a knowledge gap regarding the relative effects of these mesopredators on the reproductive success of capercaillie. To better understand how various landscape factors influence
Siow Yan Jennifer Angoh +4 more
wiley +1 more source
Achiral benzoic acid appended helical polymers for the copper-catalyzed asymmetric Diels-Alder reaction and Michael addition with excellent enantioselectivity and recyclability. [PDF]
Ti QH, Mo MY, Gao RT, Liu N, Wu ZQ.
europepmc +1 more source
Micro‐habitat selection by boreal woodland caribou improves access to food
Bio‐logging sensors attached to radiotelemetry receivers have great potential to transform our understanding of the ecological, physiological, and energetic constraints that shape patterns of wildlife movement under field conditions. We used video camera collars to assess microhabitat selectivity by woodland caribou Rangifer tarandus in boreal forests ...
Ian D. Thompson +8 more
wiley +1 more source
Stable Vicinal Bisketene Equivalents for Aryne Diels-Alder Reactions. [PDF]
Budwitz JE, Newton CG.
europepmc +1 more source
Quantifying microhabitat selection of snowshoe hares using forest metrics from UAS‐based LiDAR
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 +7 more
wiley +1 more source
Room-Temperature Helix-to-Disc Conversion of Thia[6]helicene S,S-Dioxides to Coronene via In Situ Phenoxide Anion Generation. [PDF]
Seino K, Murase T.
europepmc +1 more source
Estimating red deer Cervus elaphus population density using drones in a steep and rugged terrain
Precise and accurate information about population density, crucial for wildlife management, is difficult to obtain for elusive species living in dense forests or steep and inaccessible terrain. Using unmanned aerial vehicles (UAVs), we developed a method for obtaining absolute population estimates of ungulates living in steep, rugged, and partly ...
Julie Bommerlund +3 more
wiley +1 more source

