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Keyword: western USA

Introduction: Exotic annual Bromus in the western USA [Chapter 1]

Publications Posted on: March 22, 2016
The spread and impacts of exotic species are unambiguous, global threats to many ecosystems. A prominent example is the suite of annual grasses in the Bromus genus (Bromus hereafter) that originate from Europe and Eurasia but have invaded or are invading large areas of the Western USA.

Functionally relevant climate variables for arid lands: Aclimatic water deficit approach for modelling desert shrub distributions

Publications Posted on: July 27, 2015
We have three goals. (1) To develop a suite of functionally relevant climate variables for modelling vegetation distribution on arid and semi-arid landscapes of the Great Basin, USA. (2) To compare the predictive power of vegetation distribution models based on mechanistically proximate factors (water deficit variables) and factors that are more mechanistically removed from a plant’s use of water (precipitation).

Quantifying restoration effectiveness using multi-scale habitat models: Implications for sage-grouse in the Great Basin

Publications Posted on: September 28, 2014
A recurrent challenge in the conservation of wide-ranging, imperiled species is understanding which habitats to protect and whether we are capable of restoring degraded landscapes.

Continental-scale assessment of genetic diversity and population structure in quaking aspen (Populus tremuloides)

Publications Posted on: September 17, 2013
Aspen populations in the south-western portion of the range are consistent with expectations for a historically stable edge, with low within-population diversity, significant geographical population structuring, and little evidence of northward expansion.

Fire and riparian ecosystems in landscapes of the western USA

Publications Posted on: April 11, 2011
Despite the numerous values of riparian areas and the recognition of fire as a critical natural disturbance, few studies have investigated the behavior, properties, and influence of natural fire in riparian areas of the western USA. Riparian areas frequently differ from adjacent uplands in vegetative composition and structure, geomorphology, hydrology, microclimate, and fuel characteristics.