Navigation Links
Shrinking leaves point to climate change
Date:7/3/2012

University of Adelaide researchers have discovered that recent climate change is causing leaves of some Australian plants to narrow in size.

The study, which is the first of its kind in the world, highlights that plant species are already responding to changes in climate. The results are published online today in the Royal Society journal Biology Letters.

Researchers analysed leaves from herbarium specimens of Narrow-leaf Hopbush (Dodonaea viscosa subsp. angustissima) dating from the 1880s to the present. The study focused on specimens from South Australia's Flinders Ranges.

The analysis revealed a 2mm decrease in leaf width (within a total range of 1-9mm) over 127 years across the region. Between 1950 and 2005, there has been a 1.2C increase in maximum temperatures in South Australia but little change in rainfall in the Flinders Ranges.

"Climate change is often discussed in terms of future impacts, but changes in temperature over recent decades have already been ecologically significant," says Dr Greg Guerin, a Postdoctoral Fellow with the University of Adelaide's School of Earth and Environmental Sciences and lead author of the study.

"Climate change is driving adaptive shifts within plant species and leaf shape has demonstrated adaptive significance in relation to climate.

"Our results indicate that leaf width is closely linked to maximum temperatures, and plants from warmer latitudes typically have narrower leaves.

"In the case of Narrow-leaf Hopbush, we can significantly link the changes in leaf width to changes in climate."

Dr Guerin says some Australian plant species have greater potential to respond to and cope with increasing temperatures than others. "It's important to understand how plants cope with changing climates, because species that are more adaptive to change may be good candidates for environmental restoration efforts.

"Other species in the region have less potential to adapt. These species may rely more heavily on migration moving from location to location where the climate is favourable but this can be problematic in a landscape fragmented by human activity," Dr Guerin says.


'/>"/>

Contact: Dr. Greg Guerin
greg.guerin@adelaide.edu.au
61-400-610-955
University of Adelaide
Source:Eurekalert

Related biology news :

1. First model of how buds grow into leaves
2. Pod corn develops leaves in the inflorescences
3. Penn research points to new way of preserving fertility for boys undergoing cancer treatment
4. Newly discovered foot points to a new kid on the hominin block
5. Researchers pinpoint genetic pathway of rare facial malformation in children
6. Culturally sensitive research in United Arab Emirates pinpoints indoor air quality risks
7. Discovered a new checkpoint of cell cycle control through joint action of 2 proteins
8. Its in the genes: Research pinpoints how plants know when to flower
9. Computer model pinpoints prime materials for efficient carbon capture
10. 3-V Biosciences Appoints Douglas I. Buckley, PhD, as Vice President of Biology
11. New study will help protect vulnerable birds from impacts of climate change
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/23/2016)... WAKEFIELD, Massachusetts , March 23, 2016 ... kombiniert im Interesse erhöhter Sicherheit Gesichts- und ... Xura, Inc. (NASDAQ: MESG ... heute bekannt, dass das Unternehmen mit SpeechPro ... insbesondere aus der Finanzdienstleistungsbranche, wird die Möglichkeit ...
(Date:3/22/2016)... , PROVO and ... -- Newborn Screening Ontario (NSO), which operates the highest ... for molecular testing, and Tute Genomics and UNIConnect, leaders ... technology respectively, today announced the launch of a project ... sequencing (NGS) testing panel. NSO has ...
(Date:3/18/2016)... 18, 2016 --> ... ICT, Manned & Unmanned Vehicles, Physical infrastructure and Perimeter Surveillance ... in the border security market and the continuing migration crisis ... Europe has led visiongain to publish this ... --> defence & security companies in the ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... , June 23, 2016 /PRNewswire/ - FACIT ... Ontario biotechnology company, Propellon Therapeutics ... development and commercialization of a portfolio of first-in-class ... Epigenetic targets such as WDR5 represent an exciting ... significantly in precision medicine for cancer patients. Substantial ...
(Date:6/23/2016)...  The Prostate Cancer Foundation (PCF) is pleased to announce 24 ... for prostate cancer. Members of the Class of 2016 were selected from a ... Read More About the Class of 2016 PCF Young Investigators ... ... ...
(Date:6/23/2016)... (PRWEB) , ... June 23, 2016 , ... STACS DNA ... Technical Leader at the Arkansas State Crime Laboratory, has joined STACS DNA as a ... STACS DNA team,” said Jocelyn Tremblay, President and COO of STACS DNA. “In further ...
(Date:6/23/2016)... -- Andrew D Zelenetz , ... Published recently in Oncology & ... Andrew D Zelenetz , discusses the fact ... placing an increasing burden on healthcare systems worldwide, ... the patents on many biologics expiring, interest in ...
Breaking Biology Technology: