Results 61 to 70 of about 13,891 (287)
Evaluating the impact of climate change on the black spruce defoliation by spruce budworm
, 2023 Current ecological models predict profound climate change-related effects on the natural disturbance regimes of forests. Spruce budworm (Choristoneura fumiferana) (SBW) is the principal insect defoliator in eastern North America, and SBW outbreaks have a major impact on the structure and function of the Canadian boreal forest, as defoliation leads to ...
Anoj Subedi +2 more
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Detection and Partial Characterization of Tenuiviruses from Black Spruce [PDF]
Plant Disease, 2000 Filamentous viral ribonucleoproteins (RNPs) 12 to 16 nm in diameter and 100 to 1,260 nm in length, and characteristic of the genus Tenuivirus, were detected by transmission electron microscopy in purified extracts of needles collected from two mature, asymptomatic black spruce (Picea mariana) trees in New York, but not in extracts of needles from ...
J D, Castello +7 more
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Wildlife 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
Spatially explicit structure of natural stands dominated by black spruce
Silva Fennica, 2013 Black spruce [ (Mill.) BSP] regeneration emerges in clusters near the pre-existing boles within a few years after the passage of fire. This paper tested the hypothesis that black spruce forests still maintain the spatial structure deriving from postfire ...
Rossi, Sergio +3 more
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Wood formation in black spruce : [PDF]
, 2012 La croissance des arbres dans la foret boreale est souvent consideree limitee par les basses temperatures et par la disponibilite en azote (N). Avec le rechauffement climatique, la disponibilite en azote pourrait augmenter grâce a l'effet positif d'une augmentation de la temperature du sol sur la mineralisation et la decomposition de la matiere ...
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DIVERSIFYING COEVOLUTION BETWEEN CROSSBILLS AND BLACK SPRUCE ON NEWFOUNDLAND [PDF]
Evolution, 2002 Coevolution is increasingly recognized as an important process structuring geographic variation in the form of selection for many populations. Here we consider the importance of a geographic mosaic of coevolution to patterns of crossbill (Loxia) diversity in the northern boreal forests of North America.
Thomas L, Parchman, Craig W, Benkman
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Dusky grouse seasonal resource selection in the Great Basin isolated mountain ranges of Nevada, USA
Wildlife Biology, EarlyView.Dusky grouse Dendragapus obscurus are a montane forest grouse species with a paucity of information regarding their temporal and spatial resource use during critical times of high mortality and reproductive output. This lack of vital data may leave dusky grouse at risk of sub‐optimal management in many areas of their distribution, especially in the ...
Stephanie Landry +4 more
wiley +1 more source
AN EFFECT OF SPHAGNUM ON THE GROWTH OF BLACK SPRUCE [PDF]
The Forestry Chronicle, 1966 Black spruce (P. mariana (Mill.) BSP.) grows slowly and reproduces with difficulty on most of the lowland sites where it normally occurs. An examination of the rooting systems of small and large trees indicates that growth was initiated at points substantially below the present ground surface.
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Wildlife Biology, EarlyView.Renewable energy is vital for reducing carbon emissions and yet its infrastructure poses challenges to biodiversity. While the impacts of wind power on bats and raptors are well‐studied, the effects on elusive species remain largely unknown. The Eurasian woodcock Scolopax rusticola, a nocturnal forest bird, performs characteristic courtship flights at ...
Jan O. Engler +6 more
wiley +1 more source
Extrusion-Biodelignification Approach for Biomass Pretreatment
WasteThis work presents a new approach for lignocellulosic biomass pretreatment. The process is a sequential combination of extrusion (Ex) and semi-solid fermentation (SSF).
Delon Konan +6 more
doaj +1 more source