Results 71 to 80 of about 87,544 (266)

Projected Temperature and Precipitation Expand Modeled Distributions of Reynoutria spp. While Modeled Distribution Changes for Ludwigia spp. Are Scenario‐Dependent at Watershed Scales in the Pacific Northwest, USA

open access: yesRiver Research and Applications, EarlyView.
ABSTRACT Invasive species can fundamentally alter their introduced habitats by changing natural processes and harming native species crucial to functional ecosystems and human needs. Although the number of potential invasive species is large, the suitability of novel locations to support population establishment is limited by both physical and ...
Emily E. Smoot   +5 more
wiley   +1 more source

Productivity of willow coppice plants grown in short rotations

open access: yesPlant, Soil and Environment, 2005
In the paper yield of dry matter and some morphological features of four fast growing willow coppice genotypes harvested in one, two, three and four years harvesting cycles are presented.
S. Szczukowski   +4 more
doaj   +1 more source

Oral herbal therapies for treating osteoarthritis (review) [PDF]

open access: yes, 2014
Background Medicinal plant products are used orally for treating osteoarthritis. Although their mechanisms of action have not yet been elucidated in full detail, interactions with common inflammatory mediators provide a rationale for using them to ...
Cameron, Melainie, Chrubasik, Sigrun
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

New species and records of Stenus (Nestus) of the canaliculatus group, with the erection of a new species group (Insecta: Coleoptera: Staphylinidae: Steninae) [PDF]

open access: yes, 2012
The canaliculatus species group of Stenus (Nestus) is redefined. Four new Palaearctic species of the group are described and illustrated: S. (N.) alopex sp. nov. from the Putorana Highland and Taymyr Peninsula, Russia; S. (N.) canalis sp. nov.
Ryvkin, Alexandr Borisovich
core   +3 more sources

A comparison of thermal drones and camera trap population estimates for Sitka black‐tailed deer in Alaska

open access: yesWildlife Biology, EarlyView.
One of the most difficult challenges for wildlife managers is reliably estimating wildlife populations. Camera traps combined with spatial capture–recapture (SCR) models are a popular tool for population estimation. They have limitations, however, including long data processing times.
Shannon P. Finnegan   +5 more
wiley   +1 more source

Project Chariot - Phase III: Progress Report [PDF]

open access: yes, 1960
This is a preliminary report and is NOT FOR PUBLICATIONBotanical investigations of the Cape Thompson - Ogotoruk Creek region of northwest Alaska were initiated in May, 1959 by the University of Alaska under contract with the United States Atomic ...
Johnson, R.E.   +2 more
core  

Records of \u3ci\u3ePachybrachis\u3c/i\u3e in Illinois (Coleoptera: Chrysomelidae) [PDF]

open access: yes, 2017
A list of the 20 species and subspecies of Pachybrachis contained in the collections of the Illinois Natural History Survey and Southern Illinois University, and the author\u27s personal collection, is presented, with recorded ecological data and county ...
Barney, Robert J
core   +2 more sources

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

open access: yesWildlife 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

MP 2012-01 [PDF]

open access: yes, 2012
In 1994 the University of Alaska Fairbanks, School of Natural Resources and Agricultural Sciences, Agricultural and Forestry Experiment Station began a project to establish permanent sample plots (PSP) throughout the forests of northern and ...
Liang, JingJing   +2 more
core  

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