Results 61 to 70 of about 11,327 (212)

Betula nigra: River birch

open access: yesEDIS, 2018
River birch can grow 50 to 90 feet tall but is often seen 40 to 50 feet. It normally grows with a central leader and small-diameter, dark-colored lateral branches.
Edward Gilman   +5 more
doaj  

Comparative evaluation of noninvasive DNA sampling and line transect surveys for spring density estimation of black grouse and capercaillie

open access: yesWildlife Biology, EarlyView.
Reliable abundance estimates provide essential information in ecology, conservation and management of many wild grouse populations. In this 3‐year study, we comparatively evaluate the suitability of traditional line transect distance sampling of flushed birds versus a spatial capture–recapture survey with noninvasive DNA samples for individual ...
Henrik Brøseth   +2 more
wiley   +1 more source

Betula papyrifera: Paper Birch

open access: yesEDIS, 2003
A native to northern areas that is grown for its beautiful white bark. An additional ornamental trait is the yellow fall leaf color. The tree is best adapted to wet and moist sites -- watch out for pests if grown in an unsuitable site.
Edward Gilman, Dennis Watson
doaj  

Landscape factors influencing predation on capercaillie nests by two competing mesopredators: pine marten and red fox

open access: yesWildlife Biology, EarlyView.
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

Betula nigra 'Heritage': 'Heritage' River Birch

open access: yesEDIS, 2003
A North American native, `Heritage' river birch can grow 50 to 80 feet tall but is often seen at 40 to 50 feet. It will grow about 30 inches or more each year in USDA hardiness zone 7, faster in the south.
Edward Gilman, Dennis Watson
doaj  

Betula populifolia: Gray Birch

open access: yesEDIS, 2003
A small, North American native tree, gray birch reaches 20 to 30 feet in height with a 10 to 20-foot spread, often forming loose, open thickets in the wild but easily trained to a single, slender trunk with an irregular, upright, pyramidal silhouette ...
Edward Gilman, Dennis Watson
doaj   +1 more source

Micro‐habitat selection by boreal woodland caribou improves access to food

open access: yesWildlife Biology, EarlyView.
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

Quantifying microhabitat selection of snowshoe hares using forest metrics from UAS‐based LiDAR

open access: yesWildlife Biology, EarlyView.
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

Betula pendula: European Birch

open access: yesEDIS, 2003
European birch is graceful and 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  

Betula szaferi a new species of the genus Betula L. from Poland

open access: yesActa Societatis Botanicorum Poloniae, 2014
This paper presents a description of a new species Betula szaferi Jentys-Szaferowa ex Staszkiewicz which had been known earlier under the name: B. "nova". B. oycoviensis cv. 'Szaferi'.
Jerzy Staszkiewicz
doaj   +1 more source

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