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 July 27, 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 July 27, 2014).

Share This




More Earth & Climate News

Sunday, July 27, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Phoenix Thunderstorm Creates Giant Wall of Dust

Phoenix Thunderstorm Creates Giant Wall of Dust

Reuters - US Online Video (July 26, 2014) A giant wall of dust slowly moves north over the Phoenix area after a summer monsoon thunderstorm. Mana Rabiee reports. Video provided by Reuters
Powered by NewsLook.com
Virginia Governor Tours Tornado Aftermath

Virginia Governor Tours Tornado Aftermath

AP (July 25, 2014) Virginia Gov. Terry McAuliffe toured the Cherrystone Family Camping and RV Resort on the Chesapeake Bay today, a day after it was hit by a tornado. The storm claimed two lives and injured dozens of others. (July 25) Video provided by AP
Powered by NewsLook.com
Europe's Highest Train Turns 80 in French Pyrenees

Europe's Highest Train Turns 80 in French Pyrenees

AFP (July 25, 2014) Europe's highest train, the little train of Artouste in the French Pyrenees, celebrates its 80th birthday. Duration: 01:05 Video provided by AFP
Powered by NewsLook.com
Goma Cheese Brings Whiff of New Hope to DRC

Goma Cheese Brings Whiff of New Hope to DRC

Reuters - Business Video Online (July 24, 2014) The eastern region of the Democratic Republic of Congo, mainly known for conflict and instability, is an unlikely place for the production of fine cheese. But a farm in the village of Masisi, in North Kivu is slowly transforming perceptions of the area. Known simply as Goma cheese, the Congolese version of Dutch gouda has gained popularity through out the region. Ciara Sutton reports. Video provided by Reuters
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