Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Record-Breaking Weather At Walden Pond Testing Limits Of Spring-Blooming Plants

17.01.2013
Boston University-initiated study shows spring ecosystems keeping pace with warming temps so far

With record-breaking warm spring weather in 2010 and 2012 resulting in the earliest known flowering times in 161 years of recorded history in two U.S. locations, according to a new Boston University-initiated study published today, scientists now are pondering if at some point plants will be unable to successfully keep adapting to a changing climate.

Records kept since 1852 by Henry David Thoreau near Walden Pond in Massachusetts and since 1935 by Aldo Leopold at his Sand County shack in Wisconsin, show that common wildflowers now blossom 20 days earlier and 24 days earlier respectively than in the past. Many plants need a long winter to undergo the physiological changes needed to bloom in the spring. While the researchers said there is no sign plants have hit the limit of their ability to respond to record-breaking warm temperatures, the consequences of earlier flowering for plant productivity, pollinators like bees, and ecosystems in general remain unknown and could be harmful.

“In 2010, plants flowered three weeks earlier than in Thoreau’s time and we thought we’d never see another year like that,” said Boston University biology Prof. Richard Primack, who co-authored the paper, along with BU postdoctoral researcher Elizabeth Ellwood and colleagues Charles Davis at Harvard University and Stanley Temple at the University of Wisconsin. “But then two years later we had another record early flowering year both in Massachusetts and in Wisconsin.”

This new study showed that many plants – such as highbush blueberry and the pink lady’s slipper orchid – flowered up to 4.1 days earlier for every degree Celsius rise in mean spring temperatures (2.3 days earlier for every degree F rise in spring temperatures). Significantly, it showed that the historical patterns of early flowering in warm years and later in cold years can predict flowering times even in exceptionally warm years. It also found that the wildflowers just keep flowering earlier as the weather warms.

“While these plants have shown remarkable resilience over decades of changing weather, it is unknown whether plant flowering times will continue on a linear trajectory of earlier flowering, or if at some point plants instead will be unable to keep pace with climate change and just start dying,” said Primack. “Thoreau and Leopold are icons of the American environmental movement and it is astonishing that the records both kept decades ago can be used today to demonstrate the impacts of climate change on plant flowering times.”

The study is published the open-access journal PLOS ONE.

Founded in 1839, Boston University is an internationally recognized institution of higher education and research. With more than 33,000 students, it is the fourth-largest independent university in the United States. BU consists of 16 schools and colleges, along with a number of multi-disciplinary centers and institutes integral to the University’s research and teaching mission. In 2012, BU joined the Association of American Universities (AAU), a consortium of 62 leading research universities in the United States and Canada.

Richard Primack | Newswise
Further information:
http://www.bu.edu

More articles from Ecology, The Environment and Conservation:

nachricht When corals eat plastics
24.05.2018 | Justus-Liebig-Universität Gießen

nachricht Dispersal of Fish Eggs by Water Birds – Just a Myth?
19.02.2018 | Universität Basel

All articles from Ecology, The Environment and Conservation >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Molecular switch will facilitate the development of pioneering electro-optical devices

A research team led by physicists at the Technical University of Munich (TUM) has developed molecular nanoswitches that can be toggled between two structurally different states using an applied voltage. They can serve as the basis for a pioneering class of devices that could replace silicon-based components with organic molecules.

The development of new electronic technologies drives the incessant reduction of functional component sizes. In the context of an international collaborative...

Im Focus: LZH showcases laser material processing of tomorrow at the LASYS 2018

At the LASYS 2018, from June 5th to 7th, the Laser Zentrum Hannover e.V. (LZH) will be showcasing processes for the laser material processing of tomorrow in hall 4 at stand 4E75. With blown bomb shells the LZH will present first results of a research project on civil security.

At this year's LASYS, the LZH will exhibit light-based processes such as cutting, welding, ablation and structuring as well as additive manufacturing for...

Im Focus: Self-illuminating pixels for a new display generation

There are videos on the internet that can make one marvel at technology. For example, a smartphone is casually bent around the arm or a thin-film display is rolled in all directions and with almost every diameter. From the user's point of view, this looks fantastic. From a professional point of view, however, the question arises: Is that already possible?

At Display Week 2018, scientists from the Fraunhofer Institute for Applied Polymer Research IAP will be demonstrating today’s technological possibilities and...

Im Focus: Explanation for puzzling quantum oscillations has been found

So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics

Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...

Im Focus: Dozens of binaries from Milky Way's globular clusters could be detectable by LISA

Next-generation gravitational wave detector in space will complement LIGO on Earth

The historic first detection of gravitational waves from colliding black holes far outside our galaxy opened a new window to understanding the universe. A...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Save the date: Forum European Neuroscience – 07-11 July 2018 in Berlin, Germany

02.05.2018 | Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

Unique scope of UV LED technologies and applications presented in Berlin: ICULTA-2018

12.04.2018 | Event News

 
Latest News

When corals eat plastics

24.05.2018 | Ecology, The Environment and Conservation

Surgery involving ultrasound energy found to treat high blood pressure

24.05.2018 | Medical Engineering

First chip-scale broadband optical system that can sense molecules in the mid-IR

24.05.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>