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A MODIFIED LADELL APPARATUS FOR THE EXTRACTION OF WETLAND MACROINVERTEBRATES1

Published online by Cambridge University Press:  31 May 2012

Daniel L. Lawson  and
Richard W. Merritt
Daniel L. Lawson
Affiliation:
Department of Entomology, Michigan State University, East Lansing, Michigan 48824
Richard W. Merritt
Affiliation:
Department of Entomology, Michigan State University, East Lansing, Michigan 48824
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Abstract

A modified Ladell apparatus is described which offers a low cost and efficient method of wetland macroinvertebrate extraction. Soil and leaf litter samples, immersed in Mg2SO4 solution, are subjected to agitation and bubbling to promote the extraction of macroinvertebrates. A further modification provides salt solution recycling. Fourteen floodplain taxa were recovered with extraction efficiencies ranging from 80 to 100% at a cost of 15–20 cents (U.S.) per sample.

Type
Articles
Information
The Canadian Entomologist , Volume 111 , Issue 12 , December 1979 , pp. 1389 - 1393
Copyright
Copyright © Entomological Society of Canada 1979

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References

Edwards, C. A. and Dennis, E. B.. 1962. The sampling and extraction of Symphyla from soil. pp. 300–304in Murphy, P.W. (Ed.), Progress in Soil Zoology. Butterworths, London.Google Scholar
Healy, I. N. and Russell-Smith, A.. 1970. The extraction of fly larvae from woodland soils. Soil Biol. Biochem. 2: 119–129.CrossRefGoogle Scholar
Heath, G. W. 1965. An improved method for separating arthropods from soil samples. Lab. Pract. 14: 430–432.Google Scholar
Ladell, W. A. S. 1936. A new apparatus for separating insects and other arthropods from the soil. Ann. appl. Biol. 23: 862–879.Google Scholar
Murphy, P. W. 1962. Extraction methods for soil animals. II. Mechanical methods. pp. 115–155in Murphy, P.W. (Ed.), Progress in Soil Zoology. Butterworths, London.Google Scholar
Salt, G. and Hollick, F. S. J.. 1944. Studies of wireworm populations. I. A census of wireworms in pasture. Ann. appl. Biol. 31: 52–64.Google Scholar
Strickland, A. H. 1945. A survey of the arthropod soil and litter fauna of some forest reserves and Cacao estates in Trinidad, British West Indies. J. Anim. Ecol. 14: 1–11.CrossRefGoogle Scholar