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Effects of carbon dioxide on the searching behaviour of the root-feeding clover weevil Sitona lepidus (Coleoptera: Curculionidae)

Published online by Cambridge University Press:  09 March 2007

S.N. Johnson ,
X.X. Zhang ,
J.W. Crawford ,
P.J. Gregory ,
N.J. Hix ,
S.C. Jarvis ,
P.J. Murray  and
I.M. Young
S.N. Johnson*
Affiliation:
Scottish Crop Research Institute, Invergowrie, Dundee DD2 5DA, UK School of Human and Environmental Sciences, Department of Soil Science, University of Reading, Whiteknights, PO Box 233, Reading, RG6 6DW, UK
X.X. Zhang
Affiliation:
Scottish Informatics, Mathematics, Biology and Statistics (SIMBIOS) Centre, University of Abertay, Bell Street, Dundee, DD1 1HG, UK
J.W. Crawford
Affiliation:
Scottish Informatics, Mathematics, Biology and Statistics (SIMBIOS) Centre, University of Abertay, Bell Street, Dundee, DD1 1HG, UK
P.J. Gregory
Affiliation:
Scottish Crop Research Institute, Invergowrie, Dundee DD2 5DA, UK School of Human and Environmental Sciences, Department of Soil Science, University of Reading, Whiteknights, PO Box 233, Reading, RG6 6DW, UK
N.J. Hix
Affiliation:
School of Human and Environmental Sciences, Department of Soil Science, University of Reading, Whiteknights, PO Box 233, Reading, RG6 6DW, UK
S.C. Jarvis
Affiliation:
Institute of Grassland and Environmental Research, North Wyke Research Station, Okehampton, Devon, EX20 2SB, UK
P.J. Murray
Affiliation:
Institute of Grassland and Environmental Research, North Wyke Research Station, Okehampton, Devon, EX20 2SB, UK
I.M. Young
Affiliation:
Scottish Informatics, Mathematics, Biology and Statistics (SIMBIOS) Centre, University of Abertay, Bell Street, Dundee, DD1 1HG, UK
*
*Fax: +44 (0)1382 568502 E-mail: Scott.Johnson@scri.ac.uk
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Abstract

The respiratory emission of CO2 from roots is frequently proposed as an attractant that allows soil-dwelling insects to locate host plant roots, but this role has recently become less certain. CO2 is emitted from many sources other than roots, so does not necessarily indicate the presence of host plants, and because of the high density of roots in the upper soil layers, spatial gradients may not always be perceptible by soil-dwelling insects. The role of CO2 in host location was investigated using the clover root weevil Sitona lepidus Gyllenhall and its host plant white clover (Trifolium repens L.) as a model system. Rhizochamber experiments showed that CO2 concentrations were approximately 1000 ppm around the roots of white clover, but significantly decreased with increasing distance from roots. In behavioural experiments, no evidence was found for any attraction by S. lepidus larvae to point emissions of CO2, regardless of emission rates. Fewer than 15% of larvae were attracted to point emissions of CO2, compared with a control response of 17%. However, fractal analysis of movement paths in constant CO2 concentrations demonstrated that searching by S. lepidus larvae significantly intensified when they experienced CO2 concentrations similar to those found around the roots of white clover (i.e. 1000 ppm). It is suggested that respiratory emissions of CO2 may act as a ‘search trigger’ for S. lepidus, whereby it induces larvae to search a smaller area more intensively, in order to detect location cues that are more specific to their host plant.

Keywords

fractal analysisorientationsemiochemicals
Type
Research Article
Information
Bulletin of Entomological Research , Volume 96 , Issue 4 , August 2006 , pp. 361 - 366
Copyright
Copyright © Cambridge University Press 2006

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References

Bardgett, R.D. (2005) The biology of soil: a community and ecosystem approach. 242 pp. Oxford, Oxford University Press.Google Scholar
Bernklau, E.J. & Bjostad, L.B. (1998a) Behavioral responses of first-instar western corn rootworm (Coleoptera: Chrysomelidae) to carbon dioxide in a glass bead bioassay. Journal of Economic Entomology 91, 444–456.CrossRefGoogle Scholar
Bernklau, E.J. & Bjostad, L.B. (1998b) Reinvestigation of host location by western corn rootworm larvae (Coleoptera: Chrysomelidae): CO 2 is the only volatile attractant. Journal of Economic Entomology 91, 1331–1340.Google Scholar
Bernklau, E.J., Fromm, E.A. & Bjostad, L.B. (2004) Disruption of host location of western corn rootworm larvae (Coleoptera: Chrysomelidae) with carbon dioxide. Journal of Economic Entomology 97, 330–339.CrossRefGoogle ScholarPubMed
Blossey, B. & Hunt-Joshi, T.R. (2003) Belowground herbivory by insects: influence on plants and aboveground herbivores. Annual Review of Entomology 48, 521–547.Google Scholar
Brown, V.K. & Gange, A.C. (1990) Insect herbivory below ground. Advances in Ecological Research 20, 1–58.Google Scholar
Chou, Y.M., Polansky, A.M. & Mason, R.L. (1998) Transforming non-normal data to normality in statistical process control. Journal of Quality Technology 30, 133–141.Google Scholar
Doerr, V.A.J. & Doerr, E.D. (2004) Fractal analysis can explain individual variation in dispersal search paths. Ecology 85, 1428–1438.Google Scholar
Dusenbery, D.B. (1992) Sensory ecology: how organisms acquire and respond to information. 558 pp. New York, W.H. Freeman.Google Scholar
Gollany, H.T., Schumacher, T.E., Rue, R.R. & Liu, S.Y. (1993) A carbon dioxide microelectrode for in situ CO 2 measurement. Microchemical Journal 48, 42–49.Google Scholar
Gregory, P.J. (1988) Growth and functioning of plant roots. pp. 113–167 in Wild, A. (Ed.) (1988) Russell's soil conditions and plant growth. Harlow, Longman.Google Scholar
Halley, J.M., Hartley, S., Kallimanis, A.S., Kunin, W.E., Lennon, J.J. & Sgardelis, S.P. (2004) Uses and abuses of fractal methodology in ecology. Ecology Letters 7, 254–271.Google Scholar
Harrison, R.D., Gardner, W.A., Tollner, W.E. & Kinard, D.J. (1993) X-Ray computed-tomography studies of the burrowing behavior of 4th-instar Pecan weevil (Coleoptera, Curculionidae). Journal of Economic Entomology 86, 1714–1719.CrossRefGoogle Scholar
Hatch, D.J. & Murray, P.J. (1994) Transfer of nitrogen from damaged roots of white clover (Trifolium repens L.) to closely associated roots on intact perennial ryegrass (Lolium perenne L.). Plant and Soil 166, 181–185.Google Scholar
Hewitt, E.J. (1966) Sand and water culture methods used in the study of plant nutrition. Technical Communication of the Commonwealth Agricultural Bureau of Horticultural and Plantation Crops, 22.Google Scholar
Johnson, S.N. & Gregory, P.J. (2006) Chemically-mediated host-plant location and selection by root-feeding insects. Physiological Entomology 13, 1–13.CrossRefGoogle Scholar
Johnson, S.N., Gregory, P.J., Murray, P.J., Zhang, X. & Young, I.M. (2004a) Host plant recognition by the root-feeding clover weevil, Sitona lepidus (Coleoptera: Curculionidae). Bulletin of Entomological Research 94, 433–439.CrossRefGoogle ScholarPubMed
Johnson, S.N., Read, D.B. & Gregory, P.J. (2004b) Tracking larval insect movement within soil using high resolution X-ray microtomography. Ecological Entomology 29, 117–122.CrossRefGoogle Scholar
Johnson, S.N., Gregory, P.J., Greenham, J.R., Zhang, X. & Murray, P.J. (2005) Attractive properties of an isoflavonoid found in white clover root nodules on the clover root weevil. Journal of Chemical Ecology 31, 2223–2229.Google Scholar
Jones, O.T. & Coaker, T.H. (1977) Orientated responses of carrot fly larvae, Psila rosae, to plant odours, carbon dioxide and carrot root volatiles. Physiological Entomology 2, 189–197.Google Scholar
Mandelbrot, B.B. (1967) How long is the coast of Britain? Statistical self-similarity and fractional dimension. Science 156, 636–638.CrossRefGoogle Scholar
Mortimer, S.R., van der Putten, W.H., Brown, V.K. (1999) Insect and nematode herbivory under ground: interactions and role in vegetation succession. pp. 205–238 in Olff, H., Brown, V.K. & Drent, R.H. (Eds) Herbivores: between plants and predators. Oxford, Blackwell Science.Google Scholar
Nams, V.O. (2005) Using animal movement paths to measure response to spatial scale. Oecologia 143, 179–188.Google Scholar
Rasmann, S., Köllner, T.G., Degenhardt, J., Hiltpold, I., Toepfer, S., Kuhlmann, U., Gershenzen, J. & Turlings, T.C.J. (2005) Recruitment of entomopathogenic nematodes by insect-damaged maize roots. Nature 434, 732–737.CrossRefGoogle ScholarPubMed
Schadler, M., Alphei, J., Scheu, S., Brandl, R. & Auge, H. (2004) Resource dynamics in an early-successional plant community are influenced by insect exclusion. Soil Biology and Biochemistry 36, 1817–1826.Google Scholar
Sheppard, S.K. & Lloyd, D. (2002) Direct mass spectrometric measurement of gases in soil monoliths. Journal of Microbiological Methods 50, 175–188.Google Scholar
Spike, B.P. & Tollefson, J.J. (1991) Yield response of corn subjected to Western corn rootworm (Coleoptera, Chrysomelidae) infestation and lodging. Journal of Economic Entomology 84, 1585–1590.Google Scholar
Treonis, A.M., Grayston, S.J., Murray, P.J. & Dawson, L.A. (2005) Effects of root feeding, cranefly larvae on soil microorganisms and the composition of rhizosphere solutions collected from grassland plants. Applied Soil Ecology 28, 203–215.CrossRefGoogle Scholar
Van der Putten, W.H., Vet, L.E.M., Harvey, J.A., Wackers, F.L. (2001) Linking above- and belowground multitrophic interactions of plants, herbivores, pathogens, and their antagonists. Trends in Ecology and Evolution 16, 547–554.Google Scholar
Wardle, D.A., Bardgett, R.D., Klironomos, J.N., Setala, H., van der Putten, W.H., Wall, D.H. (2004) Ecological linkages between aboveground and belowground biota. Science 304, 1629–1633.Google Scholar