Results 71 to 80 of about 3,567 (170)

Canopy, snow, and lichens on woodland caribou range in southeastern Manitoba

Rangifer, 1996
I examined the relationships among snow cover (api), lichen abundance, and canopy composition on the range of the Aikens Lake population of woodland caribou (Rangifer tarandus caribou) in southeastern Manitoba.
James A. Schaefer
doaj   +1 more source

Recovery of Young Balsam Fir Trees Damaged by Balsam Woolly Aphid

The Forestry Chronicle, 1976
After one period of balsam woolly aphid damage, young balsam fir trees resumed normal height growth by the reactivation of inhibited terminal buds on 60% of trees, and by re-orientation of primary internodal and nodal branches on 24% and 16% of trees, respectively. Permanent forks and crooks were formed only infrequently. Height growth loss on damaged
openaire   +1 more source

Ecoregion and community structure influences on the foliar elemental niche of balsam fir (Abies balsamea (L.) Mill.) and white birch (Betula papyrifera Marshall). [PDF]

Ecol Evol, 2022
Heckford TR, Leroux SJ, Vander Wal E, Rizzuto M, Balluffi-Fry J, Richmond IC, Wiersma YF.   +6 more
europepmc   +1 more source

Effect of Balsam Woolly Aphid on Cone and Seed Production by Balsam Fir

The Forestry Chronicle, 1976
The size of cones and the quantity and quality of seed produced by balsam fir, Abies balsamea (L.) Mill, in five balsam woolly aphid Adelges piceae (Ratz.), damage classes were compared. No cone or seed abnormalities that could be attributed to aphid infestation or the amount of aphid damage to the trees were detected.
openaire   +1 more source

Characterizing Seasonal Radial Growth Dynamics of Balsam Fir in a Cold Environment Using Continuous Dendrometric Data: A Case Study in a 12-Year Soil Warming Experiment. [PDF]

Sensors (Basel), 2022
Oogathoo S, Duchesne L, Houle D, Kneeshaw D.   +3 more
europepmc   +1 more source

Climate Risk Modelling of Balsam Woolly Adelgid Damage Severity in Subalpine Fir Stands of Western North America.

PLoS ONE, 2016
The balsam woolly adelgid (Adelges piceae (Ratzeburg) (Homoptera: Adelgidae)) (BWA) is a nonnative, invasive insect that threatens Abies species throughout North America.
Kathryn H Hrinkevich, Robert A Progar, David C Shaw   +2 more
doaj   +1 more source

Balsam Fir [PDF]

Nature, 1966
openaire   +2 more sources

Northeastern united states species treated with copper-based preservatives: Durability in mississippi stake tests

Maderas: Ciencia y Tecnología, 2018
This paper reports on the ground-contact durability of lesser-used wood species of the northeastern United States after treatment with copper-based preservatives.
Stan T. Lebow, Rachel A. Arango, Patricia K. Lebow, Grant T. Kirker, Mark E. Mankowski, Steven A. Halverson   +5 more
doaj  

Investigating climate anomalies associated with the sudden mortality of balsam fir trees in eastern Canada

Frontiers in Forests and Global Change
The identification of climate anomalies associated with large-scale stand disturbances can help inform climate-focused forest management. In the spring and summer of 2018, an unusual spike in balsam fir (Abies balsamea) mortality was reported in multiple
James Broom, Anthony R. Taylor, Loïc D’Orangeville, Loïc D’Orangeville   +3 more
doaj   +1 more source

COMPATIBILITY OF FOUR EASTERN CANADIAN WOODS WITH GYPSUM AND GYPSUM-CEMENT BINDERS BY ISOTHERMAL CALORIMETRY COMPATIBILIDAD DE CUATRO MADERAS DEL ESTE DE CANADÁ CON YESO Y YESO-CEMENTO POR CALORIMETRÍA ISOTÉRMICA

Maderas: Ciencia y Tecnología, 2008
In order to determine the feasibility of manufacturing wood-gypsum and wood-gypsum-cement particleboards, the hydration reactions of four Eastern Canadian wood species with gypsum and Portland cement were studied. The compatibility of hot water extracted
Raúl Espinoza Herrera, Alain Cloutier
doaj