HOME >> BIOLOGY >> NEWS
'Live fast, die young' true for forests too

Trees in the worlds most productive forests -- forests that add the most new growth each year -- also tend to die young, according to a U.S. Geological Survey (USGS) study published in a recent issue of the journal Ecology Letters. This discovery could help scientists predict how forests will respond to ongoing and future environmental changes.

"One implication of this fast turnover rate is that the worlds most productive forests may be those likely to respond most quickly to such things as climatic change," said Nate Stephenson, a USGS research ecologist in Three Rivers, Calif., and lead author of the article.

"You can view a forest like a bank account," said Stephenson. "As long as deposits and withdrawals are similar, your balance remains stable. But if the deposits or withdrawals are disrupted, the balance changes."

In productive forests, such as tropical forests growing on rich soils, the rates of both "deposits" (tree births) and "withdrawals" (tree deaths) are high. But if tree births suddenly stopped, or if tree death rates doubled, the numbers of trees in these forests would be halved in just 30 years. In contrast, said Stephenson, in less productive forests, such as coniferous forests growing at high latitudes, the same changes could take more than a century to occur.

Another implication of the study is that environmental changes considered beneficial to forests may bring about unexpected forest changes. "Most attention so far has been given to things that stress forests, like increased drought," said USGS scientist Phil van Mantgem, the study's co-author.

"Less attention has been given to the consequences of changes that can increase forest vigor or productivity, like increased rainfall."

Environmental changes that increase productivity of a given forest could lead to more rapid turnover of trees, decreasing the average age of trees. In the long run, su
'"/>

Contact: Nate Stephenson
nstephenson@usgs.gov
559-565-3176
United States Geological Survey
27-Apr-2005


Page: 1 2

Related biology news :

1. Live fast, die young applies to forests, too
2. Second messenger NAADP shows fast, dose-related impact on satiety cycle
3. Casanova field crickets - live fast, die young
4. Increase in creeping vines signals major shift in southern US forests
5. Loss of hemlocks will affect water dynamics in southern Appalachian forests
6. Greenlands ancient forests shed light on stability of ice sheet
7. Northern forests less effective than tropical forests in reducing global warming
8. Human activities increasing carbon sequestration in forests
9. Drought sensitivity shapes species distribution patterns in tropical forests
10. Madagascan tropical forests return thanks to better management and well-defined ownership
11. How to manage forests in hurricane impact zones

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


(Date:8/23/2018)... ... August 22, 2018 , ... ... LimitLIS® 4.0, the latest version of its rapidly growing cloud-based laboratory information system. ... Edition, as well as the company’s triple digit growth throughout 2018, the RURO ...
(Date:8/17/2018)... Belgium (PRWEB) , ... August ... ... the acquisition of NXT-Dx, an established epigenetics service provider based in Gent, ... number of targeted DNA methylation assays using pyrosequencing or Next-Generation Sequencing and ...
(Date:8/15/2018)... ... ... The Florida Chiropractic Association’s National Meeting on August 16th-19th in ... the U.S. will gain firsthand insights into the new laser’s advancements and superior treatment ... clinical trial that has resulted in the granting of an FDA 510(k) market clearance ...
Breaking Biology News(10 mins):
(Date:8/29/2018)... Ind. (PRWEB) , ... August 28, 2018 , ... ... selling nano-technology enhanced spinal implants, announced today the successful completion of a $5.5 ... Source Capital Corporation, Purdue’s Foundry Investment Fund, Commenda Capital, and Ellipsis Ventures. , ...
(Date:8/29/2018)... ... August 28, 2018 , ... Inc. ... lenses, has been ranked in 1138th place on the 27th annual Inc. 5000, ... The list represents the most successful companies within the American economy’s most dynamic ...
(Date:8/29/2018)... ... August 28, 2018 , ... LabRoots , the ... the world, is proud to announce the launch of a new gamification feature, allowing ... chance to win one of LabRoots most popular shirts. , Throughout each month, LabRoots ...
(Date:8/26/2018)... ... August 23, 2018 , ... LabRoots , the leading ... the world, will host the 4th Annual Microbiology and Immunology Virtual Event September ... encompassing various research areas including medicine, agriculture, and space. , During the ...
Breaking Biology Technology:
Cached News: