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Keyword: biogeography

Are invasive plants more abundant in the introduced versus native range?

Publications Posted on: September 26, 2018
Many invasion hypotheses postulate that introducing species to novel environments allows some organisms to escape population controls within the native range to attain higher abundance in the introduced range. However, introductions may also allow inherently successful species access to new regions where they may flourish without increasing in abundance.

Climate-related genetic variation in a threatened tree species, Pinus albicaulis

Publications Posted on: September 25, 2017
PREMISE OF THE STUDY: With ongoing climate change, understanding of intraspecific adaptive variation is critical for conservation and restoration of plant species. Such information is especially scarce for threatened and endangered tree species, such as Pinus albicaulis Engelm. Therefore, our principal aims were to assess adaptive variation and characterize its relationship with climate of seed origin. METHODS: We grew seedlings from 49 P.

Taxonomy, phylogenetics and biogeography of Chesneya (Fabaceae), evidenced from data of three sequences, ITS, trnS-trnG, and rbcL

Publications Posted on: November 22, 2016
Plants of Central Asia have played a significant role in the origin of floras of Eurasia and the Northern Hemisphere.

Spatial variability of tree growth in the Interior West

Science Spotlights Posted on: August 01, 2016
A fundamental goal of biogeography is to understand the factors that drive spatial and temporal variability in forest growth across large areas. The Interior West Forest Inventory and Analysis program collected tree-ring data from thousands of plots that can be used to investigate controls on growth variability. Understanding the factors that control growth are important for managing species that could exhibit range shifts in response to climate warming.

Bromus response to climate and projected changes with climate change [Chapter 9]

Publications Posted on: March 22, 2016
A prominent goal of invasive plant management is to prevent or reduce the spread of invasive species into uninvaded landscapes and regions. Monitoring and control efforts often rely on scientific knowledge of suitable habitat for the invasive species. However, rising temperatures and altered precipitation projected with climate change are likely to shift the geographic range of that suitable habitat.

Inferring ancestral distribution area and survival vegetation of Caragana (Fabaceae) in Tertiary

Publications Posted on: October 06, 2015
Caragana, a leguminous genus mainly restricted to temperate Central and East Asia, occurs in arid, semiarid, and humid belts, and has forest, grassland, and desert ecotypes. Based on the previous molecular phylogenetic tree and dating, biogeographical analyses of extant species area and ecotype were conducted by means of four ancestral optimization approaches: S-DIVA, Lagrange, Mesquite, and BBM.

Plant invasions: How do mild-mannered plants transform into superinvaders?

Media Gallery Posted on: July 30, 2015
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Plant invasions: How do mild-mannered plants transform into superinvaders?

Projects Posted on: May 19, 2015
For over 10 years, Rocky Mountain Research Station scientists and their partners have engaged in research to 1) determine the causes underlying plant invasions, 2) identify invader impacts in native systems, and 3) improve the efficacy of invasive plant mitigation efforts.

Landscape location affects genetic variation of Canada lynx (Lynx canadensis)

Publications Posted on: April 21, 2015
The effect of a population's location on the landscape on genetic variation has been of interest to population genetics for more than half a century. However, most studies do not consider broadscale biogeography when interpreting genetic data.

Tertiary montane origin of the Central Asian flora, evidence inferred from cpDNA sequences of Atraphaxis (Polygonaceae)

Publications Posted on: March 31, 2015
Atraphaxis has approximately 25 species and a distribution center in Central Asia. It has been previously used to hypothesize an origin from montane forest. We sampled 18 species covering three sections within the genus and sequenced five cpDNA spacers, atpB-rbcL, psbK-psbI, psbAtrnH, rbcL, and trnL-trnF.