Bedoukian   RussellIPM   RussellIPM   Piezoelectric Micro-Sprayer


Home
Animal Taxa
Plant Taxa
Semiochemicals
Floral Compounds
Semiochemical Detail
Semiochemicals & Taxa
Synthesis
Control
Invasive spp.
References

Abstract

Guide

Alphascents
Pherobio
InsectScience
E-Econex
Counterpart-Semiochemicals
Print
Email to a Friend
Kindly Donate for The Pherobase

« Previous AbstractChemical and sensory analysis of commercial tomato juices present on the Italian and Spanish markets    Next AbstractImpairing one sensory modality enhances another by reconfiguring peptidergic signalling in Caenorhabditis elegans »

Glob Chang Biol


Title:Climate change-induced vegetation change as a driver of increased subarctic biogenic volatile organic compound emissions
Author(s):Valolahti H; Kivimaenpaa M; Faubert P; Michelsen A; Rinnan R;
Address:"Terrestrial Ecology Section, Department of Biology, University of Copenhagen, Copenhagen, Denmark. Center for Permafrost (CENPERM), Department of Geography and Geology, University of Copenhagen, Copenhagen, Denmark. Department of Environmental Sciences, University of Eastern Finland, Kuopio, Finland. Chaire en eco-conseil, Departement des sciences fondamentales, Universite du Quebec a Chicoutimi, Chicoutimi, QC, Canada"
Journal Title:Glob Chang Biol
Year:2015
Volume:20150521
Issue:9
Page Number:3478 - 3488
DOI: 10.1111/gcb.12953
ISSN/ISBN:1365-2486 (Electronic) 1354-1013 (Print) 1354-1013 (Linking)
Abstract:"Emissions of biogenic volatile organic compounds (BVOCs) have been earlier shown to be highly temperature sensitive in subarctic ecosystems. As these ecosystems experience rapidly advancing pronounced climate warming, we aimed to investigate how warming affects the BVOC emissions in the long term (up to 13 treatment years). We also aimed to assess whether the increased litterfall resulting from the vegetation changes in the warming subarctic would affect the emissions. The study was conducted in a field experiment with factorial open-top chamber warming and annual litter addition treatments on subarctic heath in Abisko, northern Sweden. After 11 and 13 treatment years, BVOCs were sampled from plant communities in the experimental plots using a push-pull enclosure technique and collection into adsorbent cartridges during the growing season and analyzed with gas chromatography-mass spectrometry. Plant species coverage in the plots was analyzed by the point intercept method. Warming by 2 degrees C caused a 2-fold increase in monoterpene and 5-fold increase in sesquiterpene emissions, averaged over all measurements. When the momentary effect of temperature was diminished by standardization of emissions to a fixed temperature, warming still had a significant effect suggesting that emissions were also indirectly increased. This indirect increase appeared to result from increased plant coverage and changes in vegetation composition. The litter addition treatment also caused significant increases in the emission rates of some BVOC groups, especially when combined with warming. The combined treatment had both the largest vegetation changes and the highest BVOC emissions. The increased emissions under litter addition were probably a result of a changed vegetation composition due to alleviated nutrient limitation and stimulated microbial production of BVOCs. We suggest that the changes in the subarctic vegetation composition induced by climate warming will be the major factor indirectly affecting the BVOC emission potentials and composition"
Keywords:Betula/*chemistry *Climate Change *Ecosystem Gas Chromatography-Mass Spectrometry Global Warming Plant Leaves/*chemistry Seasons Sweden Volatile Organic Compounds/*analysis Arctic BVOCs climate change isoprene monoterpene plant volatiles sesquiterpene tem;
Notes:"MedlineValolahti, Hanna Kivimaenpaa, Minna Faubert, Patrick Michelsen, Anders Rinnan, Riikka eng Research Support, Non-U.S. Gov't England 2015/05/23 Glob Chang Biol. 2015 Sep; 21(9):3478-88. doi: 10.1111/gcb.12953. Epub 2015 May 21"

 
Back to top
 
Citation: El-Sayed AM 2024. The Pherobase: Database of Pheromones and Semiochemicals. <http://www.pherobase.com>.
© 2003-2024 The Pherobase - Extensive Database of Pheromones and Semiochemicals. Ashraf M. El-Sayed.
Page created on 19-12-2024