Featured Research

from universities, journals, and other organizations

European invader outcompetes Canadian plants even outside its usual temperature range

Date:
March 12, 2013
Source:
Pensoft Publishers
Summary:
Vincetoxicum rossicum, commonly known as dog-strangling vine, is an alien invasive plant from the Ukraine and southwestern Russia that has now established itself in the northeastern United States and southern Ontario, Canada. This species successfully displaces local native plants, demonstrating high tolerance for environmental variables such as light and soil moisture.

This image shows Vincetoxicum rossicum in the growth chamber during experiments.
Credit: Laura Sanderson/CC-BY 3.0

Dog-strangling vine (Vincetoxicum rossicum) is an exotic plant originating from the Ukraine and southeastern Russia that is becoming increasingly invasive in southern Ontario, Canada. It has been found growing successfully in both disturbed and undisturbed areas, in open fields, forest edges and understories, parks, road edges and railway embankments. The invasive plant effectively competes for light by forming large and dense stands that climb over other plants.

A study published in the open access, peer-reviewed journal NeoBiota explores the effects of V. rossicum invasion in Canada.

Apart from displacing local plant species, among the ecological effects of a possible V. rossicum invasion are endangered populations of local soil organisms and pollinator species. Another concern is the dog strangling vine's good adaptability to and possible invasion of the alvar environment in the region, which for the Ontario is a rare kind of habitat supporting a number of important habitat-specific species. V. rossicum is also believed to be allelopathic, which means that in its roots, it produces chemicals that are toxic to other plants and exuded in the surrounding soil.

Along with photoperiod and moisture, temperature is considered a key environmental cue for flowering. Temperature majorly affects the reproduction of the dog-strangling vine. Generally, reproduction takes longer to occur under cooler growing conditions. A slight reduction from the current growing temperature conditions of the dog-strangling vine is sufficient to produce a significant delay in budding, flowering, and the formation of seedpods. Therefore, V. rossicum may be limited in its capacity to spread into northern climates simply because it may not be able to complete its life-cycle. To test this possibility the authors grew V. rossicum under simulated temperature conditions of northern and southern Ontario. In addition, they forced V. rossicum to compete with Solidago canadensis, which is highly abundant across Ontario.

Laura Sanderson and Pedro Antunes from the Invasive Species Research Institute, Canada, found that "in spite of a delay in growth under cooler conditions, V. rossicum produced just as many seeds as it did under temperature regimes typical of its current distribution range." They also found that competition with S. canadensis resulted in reductions in the fitness and total biomass of V. rossicum. However, the relative reductions in total biomass were greater for the competing native species, regardless of climatic temperature regime.

"Phenotypic plasticity may enable V. rossicum to spread into northern Ontario," conclude the authors.


Story Source:

The above story is based on materials provided by Pensoft Publishers. The original story is licensed under a Creative Commons License. Note: Materials may be edited for content and length.


Journal Reference:

  1. Laurа Sanderson, Pedro Antunes. The exotic invasive plant Vincetoxicum rossicum is a strong competitor even outside its current realized climatic temperature range. NeoBiota, 2013; 16 (0): 1 DOI: 10.3897/neobiota.16.4012

Cite This Page:

Pensoft Publishers. "European invader outcompetes Canadian plants even outside its usual temperature range." ScienceDaily. ScienceDaily, 12 March 2013. <www.sciencedaily.com/releases/2013/03/130312152057.htm>.
Pensoft Publishers. (2013, March 12). European invader outcompetes Canadian plants even outside its usual temperature range. ScienceDaily. Retrieved August 23, 2014 from www.sciencedaily.com/releases/2013/03/130312152057.htm
Pensoft Publishers. "European invader outcompetes Canadian plants even outside its usual temperature range." ScienceDaily. www.sciencedaily.com/releases/2013/03/130312152057.htm (accessed August 23, 2014).

Share This




More Earth & Climate News

Saturday, August 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Airlines on Iceland Volcano Alert

Airlines on Iceland Volcano Alert

Reuters - Business Video Online (Aug. 22, 2014) Iceland evacuates an area north of the country's Bardarbunga volcano, as the country's civil protection agency says it cannot rule out an eruption. Authorities have already warned airlines. As Joel Flynn reports, ash from the eruption of the Eyjafjallajokull volcano in 2010 shut down much of Europe's airspace for six days. Video provided by Reuters
Powered by NewsLook.com
Endangered Red Wolves Face Uncertain Future

Endangered Red Wolves Face Uncertain Future

AP (Aug. 22, 2014) A federal judge temporarily banned coyote hunting to save endangered red wolves, but local hunters say that the wolf preservation program does more harm than good. Meanwhile federal officials are reviewing its wolf program in North Carolina. (Aug. 22) Video provided by AP
Powered by NewsLook.com
Coal Gas Boom in China Holds Climate Risks

Coal Gas Boom in China Holds Climate Risks

AP (Aug. 22, 2014) China's energy revolution could do more harm than good for the environment, despite the country's commitment to reducing pollution and curbing its carbon emissions. (Aug. 22) Video provided by AP
Powered by NewsLook.com
Microbrewery Chooses Special Can for Its Beer

Microbrewery Chooses Special Can for Its Beer

AP (Aug. 22, 2014) Aluminum giant, Novelis, has partnered with Red Hare Brewing Company to introduce the first certified high-content recycled beverage can. (Aug. 22) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins