HOME >> BIOLOGY >> NEWS
Plant diversity threatened by climate change and buildup of greenhouse gas, study reveals

the dry California summer: "We think the effects of elevated CO2 and increased precipitation were more or less the same, but because they were separated in time by a couple of weeks, they actually produced opposite results. In our ecosystem here, things that happen at different times in the season are really important."

The study also revealed that heat in the absence of other treatments had no significant impact on diversity. However, when experimental plots were exposed to higher temperatures along with excess nitrogen, carbon dioxide and water, the number of wildflower species plummeted.

"One take-home message of our study is that certain kinds of species are much more sensitive to climate and atmospheric changes than others," Zavaleta observed.

"It turned out that wildflowers were much more sensitive to the treatments than grasses were, no matter what combination of treatments we tried," she added, noting that a large-scale change in diversity could diminish the ability of grasslands to support birds, deer, butterflies and other wildlife as well as commercial grazing.

Additive response

The researchers discovered that they could make remarkably accurate predictions of species diversity in plots where multiple treatments had been applied simply by adding up losses and gains observed under single treatments. For example, in quadrants receiving excess nitrogen, heat and CO2, wildflower diversity decreased by about 27 percent - almost exactly what would be expected if you added up the percentages of loss in quadrants given single treatments of CO2 (18 percent), nitrogen (8 percent) and heat (2 percent).

"One possible reason we see this overall additive response is that the mechanisms that are driving the changes are not interacting," Field said a finding that could prove beneficial in forecasting how global environmental changes will affect plant diversity in other ecosystems.

"We hope to move into the
'"/>

Contact: Mark Shwartz
mshwartz@stanford.edu
650-723-9296
Stanford University
16-Jun-2003


Page: 1 2 3 4

Related biology news :

1. Plants will not save us from greenhouse gases
2. Plant pathologists meeting in Anaheim, CA to discuss agricultural security, food safety, and more
3. Plant gene discovery could enhance plant growth, reduce fertilizer needs and phosphate pollution
4. Plant respiration not just an evolutionary leftover, study shows
5. Canadian Society of Agronomy partners with Plant Management Network
6. Plant pathologists look to forensics to aid in biosecurity
7. Plants for the future: A European vision for plant biotechnology towards 2025
8. Plant pathologists to discuss the future of organic farming
9. Plant pathologists to meet in Anaheim, CA to discuss agricultural security, food safety, and more
10. Plant-like enzyme acts as key life cycle switch in malaria parasite
11. Plant disease under the homeland security microscope

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:8/9/2019)... ... ... With a demand in healthcare to lower unneeded emergency room visits and provide ... in the coming years, according to a new report on the industry by market ... is a detailed look at the current state of these healthcare outlets, including the ...
(Date:8/6/2019)... ... August 06, 2019 , ... The ... One plant-based food in particular quickly entered the limelight – meat alternatives. Yet, ... a thermogelling and emulsifying ingredient such as methyl cellulose. This ingredient is highly ...
(Date:8/1/2019)... ... 30, 2019 , ... Keck Graduate Institute (KGI) President Sheldon ... in Bioprocessing and Director of the Amgen Bioprocessing Center, effective July 29, 2019. ... possesses more than 25 years of global experience in bioprocessing,” Schuster said. "She ...
Breaking Biology News(10 mins):
(Date:7/30/2019)... ... July 30, 2019 , ... ... building and cooking events company. Not only has the company already hosted many ... offering Private Cooking Parties to its guests. , With Lajollacooks4u’s Private Cooking Parties, ...
(Date:7/19/2019)... ... July 18, 2019 , ... ... “Ravi Everest,” will be joining forces with California-based charity Coalition Duchenne for its ... 20-22nd. Coalition Duchenne raises awareness and funding for Duchenne muscular dystrophy and was ...
(Date:7/11/2019)... ... 11, 2019 , ... At the most recent stem cell training course ... Veterans under the R3 Heroes Program. The Veterans included individuals and families from all ... anyone to nominate a military Veteran, teacher or first responder to receive a regenerative ...
(Date:6/26/2019)... ... 26, 2019 , ... Alice Branton today released research results from preclinical trials ... Gluconate, which can prove to be beneficial for treating Hypomagnesemia. , The preclinical trial ... in crystallite size , Over 142% increase in particle size , ...
Breaking Biology Technology:
Cached News: