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Keyword: climate variability

Contrasting climate niches among co-occurring subdominant forbs of the sagebrush steppe

Publications Posted on: April 05, 2019
Aim: Abiotic conditions are key components that determine the distribution of species. However, co-occurring species can respond differently to the same factors, and determining which climate components are most predictive of geographic distributions is important for understanding community response to climate change.

Climatic drivers of ponderosa pine growth in central Idaho

Publications Posted on: December 04, 2018
Despite the widespread use of ponderosa pine as an important hydroclimate proxy, we actually understand very little about its climate response in the Northern Rockies. Here, we analyze two new ponderosa pine chronologies to investigate how climate influences annual growth.

Gridded snow water equivalent reconstruction for Utah using Forest Inventory and Analysis tree-ring data

Publications Posted on: July 19, 2017
Snowpack observations in the Intermountain West are sparse and short, making them difficult for use in depicting past variability and extremes. This study presents a reconstruction of April 1 snow water equivalent (SWE) for the period of 1850–1989 using increment cores collected by the U.S. Forest Service, Interior West Forest Inventory and Analysis program (FIA).

Measurement of inter- and intra-annual variability of landscape fire activity at a continental scale: The Australian case

Publications Posted on: January 31, 2017
Climate dynamics at diurnal, seasonal and inter-annual scales shape global fire activity, although difficulties of assembling reliable fire and meteorological data with sufficient spatio-temporal resolution have frustrated quantification of this variability.

Climate variability and fire effects on quaking aspen in the central Rocky Mountains, USA

Publications Posted on: January 30, 2017
Our understanding of how climate and fire have impacted quaking aspen (Populus tremuloides Michx.) communities prior to the 20th century is fairly limited. This study analysed the period between 4500 and 2000 cal. yr BP to assess the pre-historic role of climate and fire on an aspen community during an aspen-dominated period.

Fire and drought [Chapter 7]

Publications Posted on: May 23, 2016
Historical and presettlement relationships between drought and wildfire have been well documented in much of North America, with forest fire occurrence and area burned clearly increasing in response to drought. Drought interacts with other controls (forest productivity, topography, and fire weather) to affect fire intensity and severity.

A review of the relationships between drought and forest fire in the United States

Publications Posted on: May 23, 2016
The historical and presettlement relationships between drought and wildfire are well documented in North America, with forest fire occurrence and area clearly increasing in response to drought. There is also evidence that drought interacts with other controls (forest productivity, topography, fire weather, management activities) to affect fire intensity, severity, extent, and frequency.

Understanding the science of climate change: Talking Points - Impacts to arid lands

Publications Posted on: August 17, 2010
Arid ecosystems are particularly sensitive to climate change and climate variability because organisms in these regions live near their physiological limits for water and temperature stress. Slight changes in temperature or precipitation regimes, or in magnitude and frequency of extreme climatic events, can significantly alter the composition, abundance, and distribution of species. Observed climate changes in the southwestern U.S.

Adapting to Climate Change: A Short Course for Land Managers

Publications Posted on: December 22, 2009

Multi-season climate synchronized forest fires throughout the 20th century, Northern Rockies, USA

Publications Posted on: September 02, 2008
We inferred climate drivers of 20th-century years with regionally synchronous forest fires in the U.S. northern Rockies. We derived annual fire extent from an existing fire atlas that includes 5038 fire polygons recorded from 12 070 086 ha, or 71% of the forested land in Idaho and Montana west of the Continental Divide.

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