HOME >> BIOLOGY >> NEWS
High Carbon Dioxide Levels May Be Killing Insects

High Carbon Dioxide Levels May Have Surprising Consequences

WHILE rising levels of atmospheric carbon dioxide might make plants grow faster, they could be bad news for plant-eating insects. A Florida biologist has found that subtle increases in CO2 can kill leaf-eating moths by reducing the nutritional value of the leaves they feed on.

Peter Stiling, a biologist at the University of South Florida in Tampa, says the new research contributes to the mounting evidence that the ecological changes brought about by increasing CO2 levels are likely to be hard to predict. "It looks like elevated CO2 has at least as many direct effects as indirect effects," he says.

Stiling looked at several species of mining moths, whose larvae tunnel through leaves for food. By examining the tunnels, or "mines", they left behind, Stiling and colleagues could tell whether the larvae had died inside the mine, were killed by predators such as spiders or ants, or were eaten from the inside out by the larvae of parasitic wasps. Stiling conducted the experiment at the Kennedy Space Center in Florida in 16 open-topped chambers containing myrtle oak and sand-live oak. Half of the chambers had normal CO2 levels, while the other half had approximately double the normal level of CO2.

Stiling found that many more larvae died in the chambers with high CO2 levels. About 10 per cent of the larvae in the high CO2 chambers died inside the mines, compared with only 5 per cent in the chambers with normal CO2 levels. The deaths within the leaf mines probably resulted from malnutrition, Stiling says. Plants in high CO2 conditions grow bigger and faster, but their lower nitrogen content makes them poorer nutritionally.

Author: Kurt Kleiner
New Scientist issue 15th August 98, page 10

PLEASE MENTION NEW SCIENTIST AS THE SOURCE OF THIS ARTICLE


'"/>

Contact: Claire Bowles
claire.bowles@rbi.co.uk
44 171 331 2751
New Scientist
12-Aug-1998


Page: 1

Related biology news :

1. A shrinking sink? Carbon fertilization may be flimsy weapon against warming
2. Carbon dioxide fertilization is neither boon nor bust
3. Carbon nanotubes found to fluoresce
4. Carbon monoxide has unexpected benefits, but dont try it at home
5. Carbon sequestration: seeing the forest for its trees
6. Carbon cycling and species composition: seeing the forest for its trees
7. Carbon diem: Grants awarded to research that seizes excess carbon dioxide
8. New Carbon Monoxide Sensor Developed For Occupational Use
9. Report: High Carbon Dioxide Boosts Duke Forest Growth By 25 Percent
10. Increasing Carbon Dioxide Threatens Tropical Coral Reefs
11. North America Absorbing Carbon Dioxide At Surprisingly High Rate, Team Reports

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


(Date:6/16/2019)... , ... June 14, 2019 , ... ... invited to lecture at the fifth annual Neodent World Congress. Attended by thousands ... innovative progress and latest advancements in the world of dentistry. The three-day event ...
(Date:6/11/2019)... , ... June 12, 2019 , ... ... antibody discovery services, Abveris plans to leverage the Geneious Biologics platform as a ... Souders, Chief Technology Officer at Abveris, says: “The Geneious team has done an ...
(Date:6/4/2019)... ... June 04, 2019 , ... In’Tech Medical SAS ( ... Q1-19 revenues of $31M, up 12% from Q1-18. The growth is associated with ... & operational excellence initiatives worldwide. , Laurent Pruvost , President & CEO ...
Breaking Biology News(10 mins):
(Date:6/11/2019)... ... June 11, 2019 , ... ... Stem Cells Inc. (PSC) , has announced that their GMP facility for cell ... Drug Branch for manufacturing. This is an important milestone for VetStem as ...
(Date:5/31/2019)... ... May 29, 2019 , ... ... applications from the USPTO providing proprietary interest to our methodology, processes, and ... DISORDER DIAGNOSIS AND TREATMENT… extends Somnology’s IP rights including our proprietary sleep ...
(Date:5/22/2019)... ... May 22, 2019 , ... Artemis (formerly Agrilyst), the ... Series A funding round co-led by Astanor Ventures and Talis Capital ... and iSelect Fund . The company has raised $11.75m to date and ...
(Date:5/14/2019)... ... May 13, 2019 , ... Leak Detection Associates ... the Pharmaceutical, Biotechnology, Medical Device and Food Packaging Industries’ is excited to announce ... to improve LDA’s ability to communicate directly with the marketplace; serving as a ...
Breaking Biology Technology:
Cached News: