scholarly journals Effects of temperature and precipitation on snowpack variability in the Central Rocky Mountains as a function of elevation

2015 ◽  
Vol 42 (11) ◽  
pp. 4429-4438 ◽  
Author(s):  
Reinel Sospedra‐Alfonso ◽  
Joe R. Melton ◽  
William J. Merryfield
Keyword(s):  
Rocky Mountains ◽  
Temperature And Precipitation ◽  
Effects Of Temperature ◽  
Central Rocky Mountains

scholarly journals Albedo-induced radiative forcing from mountain pine beetle outbreaks in forests, south-central Rocky Mountains: magnitude, persistence, and relation to outbreak severity

2013 ◽  
Vol 10 (7) ◽  
pp. 11935-11968 ◽  
Author(s):  
M. Vanderhoof ◽  
C. A. Williams ◽  
Y. Shuai ◽  
D. Jarvis ◽  
D. Kulakowski ◽  
...  
Keyword(s):  
Rocky Mountains ◽  
Radiative Forcing ◽  
Mountain Pine Beetle ◽  
Tree Mortality ◽  
Temperature And Precipitation ◽  
South Central ◽  
Mountain Pine ◽  
Pine Beetle ◽  
Central Rocky Mountains ◽  
Induced Changes

Abstract. Mountain pine beetle (MPB) outbreaks in North America are widespread and have potentially-persistent impacts on forest albedo and associated radiative forcing. This study utilized multiple datasets, both current and historical, within lodgepole pine stands in the south-central Rocky Mountains to quantify the full radiative forcing impact of outbreak events for decades after outbreak (0 to 60 yr) and the role of outbreak severity in determining that impact. Change in annual albedo and radiative forcing peaked at 14–20 yr post-outbreak (0.06 ± 0.006 and −0.8 ± 0.1 W m−2, respectively) and recovered to pre-outbreak levels by 30–40 yr post-outbreak. Change in albedo was significant in all four seasons, but strongest in winter with the increased visibility of snow (radiative cooling of −1.6 ± 0.2 W m−2, −3.0 ± 0.4 W m−2, and −1.6 ± 0.2 W m−2 for 2–13 yr, 14–20 yr and 20–30 yr post-outbreak, respectively). Change in winter albedo and radiative forcing also increased with outbreak severity (percent tree mortality). Persistence of albedo effects are seen as a function of the growth rate and species composition of surviving trees, and the establishment and growth of both understory herbaceous vegetation and tree species, all of which may vary with outbreak severity. The establishment and persistence of deciduous trees was found to increase the temporal persistence of albedo effects. MPB induced changes to radiative forcing may have feedbacks for regional temperature and precipitation, which could impact future MPB outbreaks dynamics.

Exploring the Vegetation of the Central Rocky Mountains

IAVS Bulletin ◽  
2018 ◽  
Vol 2018 (3) ◽  
pp. 16-50
Author(s):  
Orsolya Valkó ◽  
◽  
Balázs Deák
Keyword(s):  
Rocky Mountains ◽  
Central Rocky Mountains

Seedling occurrence in alpine treeline conifers: A case study from the central Rocky Mountains, USA

1999 ◽  
Vol 20 (3) ◽  
pp. 219-224 ◽  
Author(s):  
Stephan Hättenschwiler ◽  
William K. Smith
Keyword(s):  
Rocky Mountains ◽  
Alpine Treeline ◽  
Central Rocky Mountains

Growth variations of Dahurian larch plantations across northeast China: Understanding the effects of temperature and precipitation

2021 ◽  
Vol 292 ◽  
pp. 112739
Author(s):  
Bingrui Jia ◽  
Hongru Sun ◽  
Herman Henry Shugart ◽  
Zhenzhu Xu ◽  
Peng Zhang ◽  
...  
Keyword(s):  
Northeast China ◽  
Dahurian Larch ◽  
Temperature And Precipitation ◽  
Effects Of Temperature ◽  
Dahurian Larch Plantations

Forest-Insect Surveys in the Central Rocky Mountains

1960 ◽  
Vol 53 (3) ◽  
pp. 458-462
Author(s):  
B. H. Wilford
Keyword(s):  
Rocky Mountains ◽  
Forest Insect ◽  
Central Rocky Mountains

scholarly journals Specimen-based analysis of morphology and the environment in ecologically dominant grasses: the power of the herbarium

2018 ◽  
Vol 374 (1763) ◽  
pp. 20170403 ◽  
Author(s):  
Christine A. McAllister ◽  
Michael R. McKain ◽  
Mao Li ◽  
Bess Bookout ◽  
Elizabeth A. Kellogg
Keyword(s):  
Morphological Characters ◽  
Automated Image Analysis ◽  
Climate Variables ◽  
Theme Issue ◽  
Analysis Techniques ◽  
Temperature And Precipitation ◽  
Sessile Spikelet ◽  
Effects Of Temperature ◽  
The Relationship ◽  
Image Analysis Techniques

Herbaria contain a cumulative sample of the world's flora, assembled by thousands of people over centuries. To capitalize on this resource, we conducted a specimen-based analysis of a major clade in the grass tribe Andropogoneae, including the dominant species of the world's grasslands in the genera Andropogon , Schizachyrium , Hyparrhenia and several others. We imaged 186 of the 250 named species of the clade, georeferenced the specimens and extracted climatic variables for each. Using semi- and fully automated image analysis techniques, we extracted spikelet morphological characters and correlated these with environmental variables. We generated chloroplast genome sequences to correct for phylogenetic covariance and here present a new phylogeny for 81 of the species. We confirm and extend earlier studies to show that Andropogon and Schizachyrium are not monophyletic. In addition, we find all morphological and ecological characters are homoplasious but variable among clades. For example, sessile spikelet length is positively correlated with awn length when all accessions are considered, but when separated by clade, the relationship is positive for three sub-clades and negative for three others. Climate variables showed no correlation with morphological variation in the spikelet pair; only very weak effects of temperature and precipitation were detected on macrohair density. This article is part of the theme issue ‘Biological collections for understanding biodiversity in the Anthropocene'.

EFFECTS OF CONIFERS AND ELK BROWSING ON QUAKING ASPEN FORESTS IN THE CENTRAL ROCKY MOUNTAINS, USA

2005 ◽  
Vol 15 (4) ◽  
pp. 1284-1295 ◽  
Author(s):  
Margot W. Kaye ◽  
Dan Binkley ◽  
Thomas J. Stohlgren
Keyword(s):  
Rocky Mountains ◽  
Quaking Aspen ◽  
Central Rocky Mountains
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