Navigation Links
Climate change forces early spring
Date:7/6/2011

Spring is hailed as the season of rebirth, but if it comes too early, it can threaten the plants it is meant to welcome.

A University of Alberta study shows that climate change over the past 70 years has pushed some of the province's native wildflowers and trees into earlier blooming times, making them more vulnerable to damaging frosts, and ultimately, threatening reproduction.

U of A PhD candidate Elisabeth Beaubien and her supervisor, professor Andreas Hamann of the Department of Renewable Resources, studied the life cycle of central Alberta spring blooms, spanning 1936 to 2006, evaluating climate trends and the corresponding changes in bloom times for seven plant species.

Using thermal time models, the researchers found that the bloom dates for early spring species such as prairie crocuses and aspen trees had advanced by two weeks over the stretch of seven decades, with later-blooming species such as saskatoon and chokecherry bushes being pushed ahead by up to six days. The average winter monthly temperature increased considerably over 70 years, with the greatest change noted in February, which warmed by 5.3 degrees Celsius.

The study, funded by grants from NSERC and Alberta Ingenuity, appears in the July issue of Bioscience.

A second related study, published in the International Journal of Biometeorology, describes the development of the Alberta and Canada PlantWatch programs, which coordinate networks of citizen scientists who track spring development timing for common plants.

In gathering their data, Beaubien and Hamann built on a network of information about phenologythe study of the timing of life cycle eventsthat was started in 1936 by the federal agriculture department and has since been supplemented by the collaborative efforts of university biologists, government researchers and more than 650 volunteers from the general public.


'/>"/>

Contact: Bev Betkowski
bev.betkowski@ualberta.ca
780-492-3808
University of Alberta
Source:Eurekalert

Page: 1

Related biology news :

1. The impact of candidates statements about climate change on electoral success
2. Climate change could turn oxygen-free seas from blessing to curse for zooplankton
3. Climate change increases the risk of ozone damage to plants
4. Gene flow may help plants adapt to climate change
5. Study shows climate change makes some chemicals more toxic to aquatic life
6. Fossilized pollen reveals climate history of northern Antarctica
7. CWRU law professor eyes prize-based incentives to generate climate innovation
8. Oceans harmful low-oxygen zones growing, are sensitive to small changes in climate
9. Can evolution outpace climate change?
10. Glaciations may have larger influence on biodiversity tan current climate
11. Glaciations may have larger influence on biodiversity than current climate
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/15/2016)...  A new partnership announced today will help ... in a fraction of the time it takes ... life insurance policies to consumers without requiring inconvenient ... Diagnostics, rapid testing (A1C, Cotinine and HIV) and ... weight, pulse, BMI, and activity data) available at ...
(Date:4/14/2016)... 14, 2016 BioCatch ™, ... today announced the appointment of Eyal Goldwerger ... Goldwerger,s leadership appointment comes at a time ... the deployment of its platform at several of the ... which discerns unique cognitive and physiological factors, is a ...
(Date:3/31/2016)... 2016   LegacyXChange, ... "Company") LegacyXChange is excited to release its ... to be launched online site for trading 100% guaranteed ... will also provide potential shareholders a sense of the ... an industry that is notorious for fraud. The video ...
Breaking Biology News(10 mins):
(Date:5/3/2016)... ... May 03, 2016 , ... ... NYC , the sensor and data driven conferences, will take place on June 7-8, 2016, at ... UnitedHealth's Vidya Raman-Tangella on incorporating technology -- including AR/VR, machine learning, apps, robotics ...
(Date:5/3/2016)... ... May 03, 2016 , ... ... and IVF laboratories. A contingency of reproductive endocrinologists, including Dr. George Hill ... experiencing infertility and to help them build families. , Ovation Fertility is a ...
(Date:5/2/2016)... ... May 02, 2016 , ... ... the pre-launch success of their revolutionary, veterinarian-designed product for indoor cats. The NoBowl ... and play with their food the way nature intended. NoBowls make cats happy ...
(Date:4/29/2016)... , April 29, 2016 ... by Transparency Market Research "Separation Systems for Commercial ... Growth, Trends, and Forecast 2015 - 2023", the ... at US$ 10,665.5 Mn in 2014 and is ... from 2015 to 2023 to reach US$ 19,227.8 ...
Breaking Biology Technology: