Tracing Plant Introduction and Spread: Genetic Evidence from Bromus tectorum (Cheatgrass)

Novak, Stephen J.; Mack, Richard N.

doi:10.1641/0006-3568(2001)051[0114:tpiasg]2.0.co;2

Cited by 176 publications

(131 citation statements)

References 14 publications

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“…Molecular data have been widely used to trace the history, pathways, and spread of a species following introduction or isolation (Novak and Mack 2001). Other techniques such as stable isotope analysis (e.g., Zanden et al 1999), simulation modeling (Higgins et al 1996), bio(eco)informatics, remote sensing, and GIS are also increasingly used in studying biological invasions, especially for identifying the source populations of species introduction, tracing the invasion history, and Genetic flexibility Morphorlogical variation D i s t r i b u t i o n r a n g e ?…”

Section: Methodology Issuesmentioning

confidence: 99%

Intercontinental biotic invasions: what can we learn from native populations and habitats?

Guo

2006

Biol Invasions

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The effectiveness of management strategies for invasive species is often hampered by a lack of clear understanding of the factors that limit species distributions. The distribution of exotic species, especially those that are invasive, are often so dynamic that limiting factors are difficult to identify. Comparisons of exotic species between their native ranges, where they are presumably close to equilibrium with controlling factors, and their ranges in areas of introduction can circumvent this difficulty. Such studies would help identify (1) limiting factors for distributions in native ranges, (2) factors associated with a high degree of invasiveness, (3) changes in genetics and morphology since introduction, which also might contribute to invasiveness, and (4) future directions and rates of invasion as a basis for developing detection/warning systems. Findings from such comparative studies would be highly valuable for understanding the dynamics of biological invasions and for improving the effectiveness of management to prevent or control invasives.

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Section: Methodology Issuesmentioning

confidence: 99%

Intercontinental biotic invasions: what can we learn from native populations and habitats?

Guo

2006

Biol Invasions

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“…Downy brome is native to much of Europe, the northern rim of Africa, and southwestern Asia (Kostivkovsky and Young 2000;Novak and Mack 2001). Outlier populations occur in Tibet, Kashmir, and southern Pakistan (Pierson and Mack 1990).…”

Section: Origin History Current Distribution Originmentioning

confidence: 99%

“…Bromus tectorum was first reported in Gray's Manual of Botany in 1889 -it was the authoritative19th century resource for flora of the northeastern U.S. The first herbarium specimen was collected in 1859 in eastern Pennsylvania (Novak and Mack 2001). By 1898, downy brome had been collected repeatedly from Vermont to Washington, D.C. (Novak and Mack 1981).…”

Section: How and When Arrived In United Statesmentioning

confidence: 99%

“…Such rapid expansion undoubtedly was facilitated by humans via discarded packing material (Dewey 1897), livestock bedding thrown out along railroad sidings, adulterated and contaminated grains, in transported livestock, and even from the occasional purposeful sowing (Mack 1981). Genetic research by Novak and Mack (2001) showed the downy brome introduction into North America occurred independently multiples times but mostly from Europe and the western Mediterranean (Spain and Morocco). There is some evidence that downy brome was introduced to the eastern U.S. and then transported west with migration although, separate introductions into eastern and western North America also is possible.…”

Section: How and When Arrived In United Statesmentioning

confidence: 99%

“…There is some evidence that downy brome was introduced to the eastern U.S. and then transported west with migration although, separate introductions into eastern and western North America also is possible. Novak and Mack (2001) found substantial evidence to show multiple introductions into western North America directly from Europe. At least seven independent introductions occurred and most of these source populations were from central Europe (Germany and the Czech Republic).…”

Section: How and When Arrived In United Statesmentioning

confidence: 99%

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