Results 71 to 80 of about 11,327 (212)

Estimating red deer Cervus elaphus population density using drones in a steep and rugged terrain

open access: yesWildlife Biology, EarlyView.
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

Microbial Diversity of Betula Trees: Pollen, Catkins, Leaves Relatively of Flowering

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2016
Quantitative microbiological analysis by dilution plating method of pollen and additional male and female catkins, leaves of Betula verrucosa Ehrh. and its two cultivars: ‘Purpurea’ and ‘Youngii’ relatively of flowering period of Betula has been realized
Tetiana V. Shevtsova   +4 more
doaj   +1 more source

Delineating seasonal shifts in reindeer habitat and diet selection by integrating GPS telemetry and stable isotope analysis

open access: yesWildlife Biology, EarlyView.
Seasonal changes shape herbivore behaviour by altering forage availability and habitat conditions; however, few studies integrate diet and habitat selection data across temporal scales. This study uses seasonality as a unifying framework to combine fine‐scale GPS‐based habitat selection data with broader‐scale dietary information from stable isotope ...
Tamara A. Hiltunen   +4 more
wiley   +1 more source

Clonal plasticity and diversity facilitates the adaptation of Rhododendron aureum Georgi to alpine environment.

open access: yesPLoS ONE, 2018
Four small oval populations and five large intensive populations of Rhododendron aureum growing at the alpine in Changbai Mountain (China) were studied in two types of habitat (in the tundra and in Betula ermanii forest).
Xiaolong Wang   +5 more
doaj   +1 more source

Induced polyploidy in Betula.

open access: yesSilva Fennica, 1990
Seeds of ten different species were treated with colchicine solution during germination, to induce duplication of the chromosome set. The species included in the study were and . The total number of individually labelled, colchicine-treated trees was 1,
Särkilahti, Eliisa, Valanne, Terho
doaj   +1 more source

Winter Track Survey of the Amur Tiger (Panthera tigris altaica) in the Southwest Primorsky Province of Russia 俄罗斯滨海边疆区西南部东北虎 (Panthera tigris altaica) 冬季足迹调查

open access: yesWildlife Letters, EarlyView.
In the winter of 2021/2022, a winter track survey revealed 43–46 tigers (without cubs) in 5.4 thousand km2 of suitable habitats in the Southwest Primorsky Province of Russia. In the same period, a network of camera traps registered 54 adult/subadult tigers here.
Yury Darman, Dina Matiukhina
wiley   +1 more source

Changes of Potential Suitable Areas for Lynx Under Climate Change in Mohe Area, Daxing'anling Mountains, China

open access: yesWildlife Letters, EarlyView.
Climate change drives shifts in suitable habitats for Eurasian lynx and its prey (hare, roe deer) in Mohe, Daxing'anling Mountains. Under RCP scenarios, moderate warming (RCP4.5) promotes substantial habitat expansion, while high‐emission conditions (RCP8.5) lead to strong expansion in the 2050s but slower gains and partial contraction by the 2070s ...
Binglian Liu   +5 more
wiley   +1 more source

Аминокислоты бересты Betula pendula и Betula pubescens

open access: yesМедицина и образование в Сибири, 2015
Объектами исследования служили образцы бересты березы повислой и березы пушистой, собранные из различных точек ареала растений и с разных участков ствола, расположенных на разной высоте от основания. Установлено наличие 14-ти аминокислот. Состав компонентов аминокислот в образцах бересты березы повислой и березы пушистой одинаков в пределах одного ...
openaire   +1 more source

From low to high elevations, flowers adapt traits and phenology to climate, but phenology‐trait relationships weak

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Flowering phenology is central to plant reproductive success and can relate to morphological traits such as size and quality of flowers, but phenology–trait associations of flowers remain unclear.
Mustaqeem Ahmad   +2 more
wiley   +1 more source

Can Wapiti (Cervus elaphus) Browsing Stimulate the Chemical Defense of Taxus cuspidata—A Case of Northeast China Tiger and Leopard National Park

open access: yesIntegrative Zoology, EarlyView.
We study that browsing by wapiti reduces the growth of saplings, and it develop chemical defenses to prevent themselves browsed again. These results reduce our concern about wapiti browse T. cuspidate saplings, and provide basic data for the study of the interaction between them, and also provide theoretical basis for the population restoration and ...
Jianan Feng   +3 more
wiley   +1 more source

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