HOME >> BIOLOGY >> NEWS
Biological legacies a key of ecological rebirth after Mount St. Helens eruption

Jerry Franklin was one of the first ecosystem scientists to visit Mount St. Helens after the eruption 20 years ago this May 18. Appearing particularly stark to the University of Washington researcher was the 125,000-acre blast zone, which looked like a moonscape, uniformly gray and, from initial appearances, sterile.

Investigations would, however, reveal that even in desolate-looking areas there were often what Franklin began to call "biological legacies" -- whole plants protected by snow, seeds, spores, root balls from which new plants could sprout, even downed trees as well as debris that offered footholds for other plants to take hold.

The importance of these remnants, the varied ways survivors and invading plants have both competed and depended on each other and the role happenstance can play revealed that classical studies of plant establishment were often too simple for what happens after major disturbances. Work at Mount St. Helens came at an important turning point in thinking about vegetation both for scientists interested in natural processes and for those interested in new ways of managing landscapes disturbed by human activities such as logging.

On and around the mountain, layers of snow and soil helped preserve plants and animals. At the higher elevations the relic sites were the size of a living room or smaller, according to UW botanist Roger del Moral, whose teams have worked at sites above 3,500 feet on the north side and above 4,500 feet on the south side of St. Helens.

One school of thought said the plants in those biological hotspots would colonize outward causing a re-greening of the area. Another said the red alderberry, slide alder, goatsbeard and other relic plants, many of which prefer shady conditions, would wither because the trees were flattened or obliterated in the blast.

But what del Moral and his fellow researchers found was that the patches tended to die back mainly at the edges. The exposed soil became a
'"/>

Contact: Sandra Hines
shines@u.washington.edu
206-543-2580
University of Washington
1-May-2000


Page: 1 2 3 4

Related biology news :

1. Biological oceanographers examine regime shifts in complex marine ecosystems
2. Biological computer diagnoses cancer and produces drug in a test tube
3. Biological cause of one form of blindness identified by SLU researchers
4. Biological trick reveals key step in melatonins regulation
5. Journal of Gerontology: Biological Sciences to offer forum
6. Biological clock more influenced by temperature than light
7. Systematics at a Crossroads: Biological and Philosophical Arguments
8. Biological and chemical agents in terrorism examined at AAN Annual Meeting
9. Biological Challenges to Humanity: Emerging and Re-emerging Pathogens
10. Biological evidence can persuade people to change unhealthy habits
11. Biological warfare: an emerging threat in the 21st century

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


(Date:6/2/2016)... 2016 The Department of Transport Management ... 44 million US Dollar project, for the , ... Personalization, Enrolment, and IT Infrastructure , to ... and implementation of Identity Management Solutions. Numerous renowned international vendors ... Decatur was selected for the most compliant and ...
(Date:5/20/2016)...  VoiceIt is excited to announce its new ... By working together, VoiceIt and VoicePass will offer ... take slightly different approaches to voice biometrics, collaboration ... usability. Both ... "This marketing and technology partnership allows ...
(Date:4/28/2016)... and BANGALORE, India , April 28, 2016 ... a product subsidiary of Infosys (NYSE: INFY ), ... a global partnership that will provide end customers ... mobile banking and payment services.      (Logo: ... innovation area for financial services, but it also plays a ...
Breaking Biology News(10 mins):
(Date:6/27/2016)... June 27, 2016 /PRNewswire/ - BIOREM Inc. (TSX-V: BRM) ("Biorem" ... by its major shareholders, Clean Technology Fund I, LP ... States based venture capital funds which together ... (on a fully diluted, as converted basis), that they ... their entire equity holdings in Biorem to TUS Holdings ...
(Date:6/27/2016)... ... 2016 , ... Newly created 4Sight Medical Solutions ... healthcare market. The company's primary focus is on new product introductions, to include ... are necessary to help companies efficiently bring their products to market. , The ...
(Date:6/24/2016)... 2016  Regular discussions on a range of subjects including ... two entities said Poloz. Speaking at a lecture ... , he pointed to the country,s inflation target, which is ... "In certain areas there ... common economic goals, why not sit down and address strategy ...
(Date:6/23/2016)... WA (PRWEB) , ... June 23, 2016 , ... ... announces the release of its second eBook, “Clinical Trials Patient Recruitment and Retention ... recruitment and retention in this eBook by providing practical tips, tools, and strategies ...
Breaking Biology Technology:
Cached News: