HOME >> BIOLOGY >> NEWS
Natural enemies help scientists untangle tropical forest food webs

will be essential to understand the diversity and structure of insect communities, especially in the species-rich tropics.

"It suggests that removal or addition of species, for example through selective logging or the release of a biological control agent, may have knock-on effects mediated by the network of natural enemies," said Professor Godfray.

The authors of the research from the NERC Centre for Population Biology at Imperial College London and the University of Oxford carried out the large-scale field experiment at the Natural History Museum's Las Cuevas Research Station in Belize, Central America.

Their experiment wasn't simple or easy: while scientists have carried out tests of apparent competition along coastal shorelines and in laboratory systems, manipulative experiments on insect communities in an environment as complex as a tropical forest are difficult and challenging and have rarely been attempted. Parasitism and predation can be especially intense, and levels of insect biodiversity are exceptionally high.

Previous work at the site by the same group led by one of the authors, Dr Owen Lewis, revealed the complexity of the food web they were studying: 93 species of leaf miner were attacked by 84 species of parasitoid wasp. Of the plants that were host to leaf miners, most were attacked by a single species but the researchers found that the vine plant Lepidaploa tortuosa was home to two leaf miners - a fly and a beetle (Latin names Pentispa fairmairei and Calycomyza sp. 8 respectively).

To test the apparent competition theory the researchers removed all of the L.tortuosa in their experimental fieldwork plots, alongside a 6-km stretch of track, in December 2001. In control plots the same biomass of plant material was removed from randomly chosen plant species that were not attacked by leaf miners.

Ten to 12 months, or five to six leaf miner generations, later, the scientists returned to measure the diffe
'"/>

Contact: Tom Miller
t.miller@imperial.ac.uk
44-207-594-6704
Imperial College London
18-Mar-2004


Page: 1 2 3

Related biology news :

1. Natural mineral locks up carbon dioxide
2. Naturalists of the Isthmus of Panama
3. Natural selection at work in genetic variation to taste
4. Natural, man-made mix promises biggest landscape plant growth
5. Natural killer cellers are made, not born
6. Natural selection in a nutshell
7. Natural fat compound may be basis for new class of drugs targeting obesity
8. Natural hormone could reverse heart damage
9. New biography details adventures of Fritz Muller, A Naturalist in Brazil
10. Natural selections fingerprint identified on fruit fly evolution
11. UC Riversides David Reznick receives 2003 E. O. Wilson Naturalist Award

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


(Date:6/30/2017)... Va. , June 30, 2017 ... leading developer and supplier of face and eye ... ATA Featured Product provider program. ... an innovative way to monitor a driver,s attentiveness ... greatly from being able to detect fatigue and ...
(Date:5/16/2017)... TEANECK, N.J. , May 16, 2017  Veratad ... leading provider of online age and identity verification solutions, ... the K(NO)W Identity Conference 2017, May 15 thru May ... Ronald Regan Building and International Trade Center. ... across the globe and in today,s quickly evolving digital ...
(Date:4/19/2017)... 2017 The global military biometrics ... marked by the presence of several large global players. ... five major players - 3M Cogent, NEC Corporation, M2SYS ... nearly 61% of the global military biometric market in ... global military biometrics market boast global presence, which has ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... Tampa Bay, Florida (PRWEB) , ... October 11, ... ... Food and Drug Administration (FDA) has granted orphan drug designation to SBT-100, its ... antibody (sdAb) for the treatment of osteosarcoma. SBT-100 is able to cross the ...
(Date:10/10/2017)... 10, 2017 International research firm Parks Associates announced ... at the TMA 2017 Annual Meeting , October 11 in ... residential home security market and how smart safety and security products impact ... Parks Associates: Smart Home ... "The residential security market has ...
(Date:10/9/2017)... FL (PRWEB) , ... October 09, 2017 , ... The ... scheduled to broadcast first quarter 2018. American Farmer airs Tuesdays at 8:30aET on RFD-TV. ... industry is faced with the challenge of how to continue to feed a growing ...
(Date:10/7/2017)... , ... October 06, 2017 ... ... in Hi-C-based genomic technologies, launched its ProxiMeta™ Hi-C metagenome deconvolution product, featuring ... kit and accompanying cloud-based bioinformatics software to perform Hi-C metagenome deconvolution using ...
Breaking Biology Technology:
Cached News: