Navigation Links
Forest pests accumulating despite regulations
Date:12/5/2010

Nonindigenous insects and pathogens continue to become established in US forests with regularity despite regulations intended to prevent this, according to a study published in the December 2010 issue of BioScience. The study, by a team led by Juliann E. Aukema of the National Center for Ecological Analysis and Synthesis in Santa Barbara, California, found that nonindigenous insects are being newly detected in US forests at a rate of about 2.5 per year, and high-impact insects and pathogens that cause significant effects in forests, including tree death, are being newly detected every 2 to 2.5 years. The rate of detection of harmful forest invaders seems to have increased in the past two decades.

Nonindigenous insects and pathogens have profound effects on US forests and inflict high costs on society, including direct market losses to the nursery and timber industries, the costs of control and eradication, and the loss of nonmarket benefits, including wildlife habitat and carbon sequestration. In the case of one notorious example, the emerald ash borer, the cost to municipalities over the next 10 years is estimated to be close to $10 billion for landscape tree treatment or removal. This pest threatens native ash species across North America.

The researchers analyzed 455 insect species, of which 62 were considered high-impact, to arrive at their conclusions. Sap-feeding insects dominated the list of non-indigenous insects, especially aphids, adelgids, and scale insects. New nonindigenous sap feeders and foliage feeders have historically been detected more frequently than insects that bore into phloem or wood, the researchers found, although wood- and phloem-borers have increased markedly in recent decades.

Increased trade and travel probably explain why invaders keep arriving despite regulatory efforts, Aukema and her coauthors believe. They advocate strengthening broad-based efforts to prevent arrivals of nonindigenous organisms, because such efforts are much more effective than attempts to eradicate arrivals that have become established. But enhanced efforts to detect newly arrived forest insects could also help, the researchers maintain.


'/>"/>

Contact: Tim Beardsley
tbeardsley@aibs.org
202-628-1500
American Institute of Biological Sciences
Source:Eurekalert

Related biology news :

1. Lichens function as indicators of nitrogen pollution in forests
2. Tropical rainforest and mountain species may be threatened by global warming
3. Forest peoples rights key to reducing emissions from deforestation
4. When it comes to forest soil, wildfires pack 1-2 punch
5. University of Leicester professor adds new perspective to rainforest debate
6. Wake Forest plays integral role in effort to revolutionize vehicle safety
7. Diversity of trees in Ecuadors Amazon rainforest defies simple explanation
8. Earthworm activity can alter forests carbon-carrying capabilities
9. Living fossil tree contains genetic imprints of rain forests under climate change
10. Dried mushrooms slow climate warming in Northern forests
11. Wildfires result in loss of forests reserved by Northwest Forest Plan
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/14/2016)... NXTD ) ("NXT-ID" or the "Company"), a company ... of a new series of commercials on Time Warner Cable ... .  The commercials will air on Bloomberg TV, Fox Business ... show. --> NXTD ) ("NXT-ID" or the "Company"), ... the airing of a new series of commercials on Time ...
(Date:3/11/2016)... -- http://www.apimages.com ) - --> http://www.apimages.com ) ... AP Images ( http://www.apimages.com ) - Germany ... the new refugee identity cards. DERMALOG will be unveiling this device, ... Hanover next week.   --> Germany ... produce the new refugee identity cards. DERMALOG will be unveiling this ...
(Date:3/10/2016)... , March 10, 2016 ... market research report "Identity and Access Management Market by ... Compliance, and Governance), by Organization Size, by Deployment, by ... published by MarketsandMarkets, The market is estimated to grow ... Billion by 2020, at a Compound Annual Growth Rate ...
Breaking Biology News(10 mins):
(Date:5/24/2016)... TEL AVIV, Israel , May 24, 2016   ... on providing physicians with artificial intelligence, real-time decision support tools ... selected to present at the 2016 Israeli Advanced Technology Industries ... part of Israel,s 15th National Life ... to 26th at the David Intercontinental Hotel in ...
(Date:5/23/2016)... ... May 23, 2016 , ... ... Precision Farming in 2017 and Beyond. The paper outlines the key trends that ... ag industry. , “We’ve witnessed a lot of highs and lows as the ...
(Date:5/23/2016)... ... May 23, 2016 , ... ... and services based in Aurora, Ohio, has broken ground on a new building ... Research Triangle Park area, this new location solidifies a commitment to business in ...
(Date:5/20/2016)... ... May 20, 2016 , ... Kablooe Design, a leading provider of product design ... 25th anniversary of the business. “We have worked hard to build long-term relationships,” says ... the privilege and honor of serving their product design and development needs through the ...
Breaking Biology Technology: