Navigation Links
Climate may keep beautiful killer plant in check
Date:2/26/2010

The flowering plant - purple loosestrife - has been heading north since it was first introduced from Europe to the eastern seaboard 150 years ago. This exotic invader chokes out native species and has dramatically altered wetland habitats in North America. But it turns out it may have a vulnerability after all: the northern climate. Canadian scientists have found that adapting to the Great White North carries a severe reproductive penalty that may limit its spread.

Purple loosestrife (Lythrum salicaria) destroys wildlife habitats by displacing native vegetation that provides food, shelter, and breeding areas for wildlife. In urban areas, it invades ditches where it can block or disrupt water flow. It has few pests and diseases, resists various control methods, and plants can produce as many as 3 million seeds a year.

But as this invasive plant has spread north it has run into challenges posed by a shorter growing season, according to a study conducted by Robert Colautti, who recently obtained his Ph.D. from the University of Toronto's Department of Ecology and Evolutionary Ecology. The results are published online this week in the Proceedings of the Royal Society of London, series B (https://rspb.royalsocietypublishing.org/content/firstcit) and featured in Nature (http://www.nature.com/nature/journal/v463/n7284/full/4631002e.html).

The authors used modeling and experimental studies of 20 purple loosestrife populations along a 1200 km latitudinal gradient from Maryland to Timmins, Ontario, representing a one-month difference in growing season. They found that northern populations have become locally adapted and flower earlier in response to a shorter growing season. However, early flowering plants suffer a cost in terms of smaller size and reduced seed production. The
'/>"/>

Contact: Kim Luke
kim.luke@utoronto.ca
416-978-4352
University of Toronto
Source:Eurekalert

Page: 1 2

Related biology news :

1. NOAA, NASA and Old Dominion researchers measure impacts of changing climate on ocean biology
2. New insights into helping marine species cope with climate change
3. Understanding global climate change through new breakthroughs in polar research
4. New UC Davis study: Climate tipping points may arrive without warning, says top forecaster
5. Animals cope with climate change at the dinner table
6. New facility expected to clarify ecosystem responses to climate change
7. Oceans reveal further impacts of climate change, says UAB expert
8. According to new survey, Americans support strong climate, energy policies
9. Invasive plants are beneficiaries of climate change in Thoreaus woods
10. World Wetlands Day focuses on climate change
11. Effects of forest fire on carbon emissions, climate impacts often overestimated
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/15/2014)... from digestion to disease resistance. Despite the fact that ... the planet, more is known about belly-button bacteria than ... colleagues working on Panama,s Barro Colorado Island discovered that ... to more than 400 different kinds of bacteria. The ... 7,000 different kinds. , Bacteria in tropical forests may ...
(Date:9/15/2014)... 2014) The so-called central dogma of molecular ... provided a simplified explanation for how genetic information ... , In reality, of course, the process is ... nearly 60 years ago by Nobel Laureate Francis ... one, there are multiple types of RNA, three ...
(Date:9/15/2014)... study indicates that lowland tapir populations may continue to ... Researchers from the Office National de la Chasse ... San Diego Zoo Global reviewed data retrieved from camera ... four years and compared this data to current harvest ... on hunting tapirs in French Guiana," said Matthias Tobler, ...
Breaking Biology News(10 mins):Smithsonian scientists discover tropical tree microbiome in Panama 2Scientists discover RNA modifications in some unexpected places 2
... Ireland Cancer Center of University Hospitals Case Medical Center ... breast cancers express the MUC-1 target. This first-of-its-kind finding, ... has paved the way for an upcoming vaccine trial ... that could potentially prevent recurrence of this aggressive type ...
... from the effects of acid rain, as wet weather counteracts ... The research, by Professor Steve Ormerod and Dr Isabelle Durance ... year period around Llyn Brianne in mid-Wales. Their findings are ... of Applied Ecology . Carried out in 14 streams, ...
... PULLAUP, WA This Christmas season, think twice about ... Christmas tree. The good, old-fashioned methodkeeping your tree in ... to keep your tree green and healthy. Researchers have ... Christmas trees; in fact, in several cases the chemical ...
Cached Biology News:Ireland Cancer Center researcher finds most triple-negative breast cancers express muc-1 target 2Climate-change set-back for acidified rivers 2Flame retardants prove ineffective on fresh-cut Christmas trees 2
(Date:9/16/2014)... (PRWEB) September 16, 2014 According to ... Toronto affiliate of ITRA Global, new development in Downtown ... Toronto city council approving another 755 storeys of new ... appears construction cranes will be dominating the Toronto skyline ... to have an unquenchable thirst for new development. , ...
(Date:9/16/2014)... (PRWEB) September 16, 2014 RENU 28, the ... molecules, became available for purchase in Australia and New ... nationwide tour beginning September 16th. The tour will make stops ... 17th, Bundaberg on the 18th, Sydney on the 20th, and ... in Australia and New Zealand and to educate people about ...
(Date:9/15/2014)... UPTON, NYHeat drives classical phase transitionsthink solid, ... happen when the temperature drops. If phase ... where quantum mechanics reigns, subtle fluctuations can ... from the U.S. Department of Energy,s Brookhaven ... explored this frigid landscape of absolute zero ...
(Date:9/15/2014)... Sept. 15, 2014   Global Science & ... scientific products and services for satellite and weather ... for Integrated Services (OASIS) from the General Services ... selected to provide the government best-value solutions for ... (SB) category in Pool 4. The OASIS SB ...
Breaking Biology Technology:ITRA Global Reports Downtown Toronto Real Estate Development is in High Gear 2ITRA Global Reports Downtown Toronto Real Estate Development is in High Gear 3Global Wellness Company Hosts ASEA Australia Tour September 16-22 2Elusive quantum transformations found near absolute zero 2Elusive quantum transformations found near absolute zero 3Global Science & Technology, Inc. Awarded GSA OASIS Small Business Contract 2Global Science & Technology, Inc. Awarded GSA OASIS Small Business Contract 3
... N.J., May 30, 2012  Today, leading events organizer ... to showcase the latest developments and opportunities across a ... by the same team as InformexUSA, North America,s leading ... chemistry, and managed in conjunction with the UBM team ...
... California Institute for Nursing & Health Care (CINHC) released ... pilot New Graduate Nurse Transition to Practice Programs (RN ... San Francisco, found that the programs are making a ... graduates and increasing their employment opportunities in hospitals and ...
... 2012 Sequenom, Inc. (NASDAQ: SQNM ), a ... the Company,s participation at the Jefferies 2012 Global Healthcare Conference ... 4-7, 2012. Harry F. Hixson, Jr., Ph.D., ... beginning at 11:00 a.m. ET, to provide an overview of ...
Cached Biology Technology:Informex Returns To India In 2012 2Informex Returns To India In 2012 3Study Shows Transition to Practice Programs Get Nurses Employed 2
... locus encodes two unrelated proteins both of ... the cell cycle in a p53-dependent manner. ... rapid degradation of mdm2 proteinrequired for mdm2 ... This interaction is mediated by the ...
human Exodus-2 Research Focus: cytokine/growth factor Storage Temperature: -20C Shipping Temperature: 4C...
...
Gel Loading Buffer contains a precipitant to ensure that the samples sink into the wells and a tracking dye to allow the user to follow the progress of electrophoresis....
Biology Products: