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XVI.—Ecological Distribution of the Lumbricidæ in the Hebrides*

Published online by Cambridge University Press:  11 June 2012

J. Morton Boyd
Affiliation:
Department of Zoology, University of Glasgow.
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Synopsis

The mineral base of the soils in Islay, Tiree, Coll and the Outer Hebrides is composed mainly of erosion products of Lewisian and Torridonian rocks, together with materials taken from solution in the sea biotically, and subsequently deposited in the form of shell-sand on the windward coasts. The soils composed for the most part of erosion products are acid, and those of marine products basic. Along transect lines at right angles to the coast there is in many places a wide range of soil conditions from calcareous sand to peat, in distances of about 1 kilometre.

The distribution of the Lumbricidæ, a group known to be affected by pH, available calcium content, and moisture content of the soil, is studied within this range in soil types. Seventeen species are involved, three of which are grouped (in numerical considerations) owing to taxonomic difficulties, and these are described in groups living in the main ecological zones of the soil habitat. Relationships are found between the abundance of those species and soil types.

The occurrence of earthworms in three different soil niches—open soil, in and under cow-pats, and under stones—is described, and niche preferences of the dominant species discussed.

Type
Research Article
Copyright
Copyright © Royal Society of Edinburgh 1957

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Footnotes

*

This paper was assisted in publication by a grant from the Carnegie Trust for the Universities of Scotland.

References

References to Literature

Allee, W. C., et al., 1949. Principles of Animal Ecology. Saunders, Philadelphia.Google Scholar
Bornebusch, C. H., 1930. “The fauna of the forest soil”, Forstl. Forsoksv.Dan., II, 1224.Google Scholar
Boyd, J. Morton, 1956. “The Lumbricidæ in the Hebrides. II. Geographical distribution,” Scot. Nat. 68, 165172.Google Scholar
Cernosvitov, L., and Evans, A. C., 1947. Synopses of the British Fauna. No. 6. “Lumbricidæ (Annelida), with a key to the common species”, Linn. Soc. Lond.Google Scholar
Charlesworth, J. K., 1955. “The late-glacial history of the Highlands and Islands of Scotland”, Trans. Roy. Soc. Edin., 62, 769928.Google Scholar
Darling, F. Fraser, 1945. Crofting Agriculture. Oliver & Boyd, Edinburgh.Google Scholar
Darling, F. Fraser, 1947. Natural History in the Highlands and Islands. Collins, London.Google Scholar
Darling, F. Fraser et al. ,,1955. West Highland Survey. Oxford University Press.Google Scholar
Evans, A. C., 1948. “Studies on the relationship between earthworms and soil fertility. II. Some effects of earthworms on soil structure”, Ann. Appl. Biol., 35, 113.Google Scholar
Evans, A. C., and Guild, W. J. McL., 1947. “Studies on the relationships between earthworms and soil fertility. I. Biological studies in the field”, Ann. Appl. Biol., 34, 307330.Google Scholar
Evans, A. C., 1948 a. “Studies on the relationships between earthworms and soil fertility. IV. “On the life cycles of some British Lumbricidæ”, Ann. Appl. Biol., 35, 471484.Google Scholar
Evans, A. C., 1948 b. “Studies on the relationships between earthworms and soil fertility. V. “Field populations”, Ann. Appl. Biol., 35, 485493.Google Scholar
Forrest, J. E. et al. , 1936. “The natural history of Barra, Outer Hebrides”, Proc. Roy. Phys. Soc. Edin., 22, 241296.Google Scholar
Grant, W. C., 1955. “Studies on moisture relationships in earthworms”, Ecology, 36, 400407.Google Scholar
Guild, W. J. McL., 1948. “Studies on the relationship between earthworms and soil fertility. III. The effect of soil type on the structure of earthworm populations”, Ann. Appl. Biol., 35, 181192.Google Scholar
Guild, W. J. McL., 1951 a. “The distribution and population density of earthworms (Lumbricidæ) in Scottish pasture fields”, J. Anim. Ecol., 20, 8897.Google Scholar
Guild, W. J. McL., 1951 b. “The Lumbricidæ in upland areas. I. Population variation in a small glen”, Ann. Mag. Nat. Hist., 4, 653657.Google Scholar
Guild, W. J. McL., 1952 a. “The Lumbricidæ in upland areas. II. Population variation in hill pasture”, Ann. Mag. Nat. Hist., 5, 286292.Google Scholar
Guild, W. J. McL., 1952 b. “Variation in earthworm numbers within field populations”, J. Anim. Ecol., 21, 169181.Google Scholar
Harrison, J. W. Heslop et al. , 1941. “The flora of the Isles of Coll, Tiree, and Gunna”, Proc. Univ. Dur. Phil. Soc., 10, 274309.Google Scholar
Harvie-Brown, J. A., and Buckley, T. E., 1888. A Vertebrate Fauna of the Outer Hebrides. Douglas, Edinburgh.Google Scholar
Harvie-Brown, J. A., 1892. A Vertebrate Fauna of Argyll and the Inner Hebrides. Douglas, Edinburgh.Google Scholar
Kerr, D. H., 1954. “Machair land in the Outer Hebrides”, Scot. Agric., 34, 157161.Google Scholar
Macleod, A. M., 1948. “Some aspects of the plant ecology of the Island of Barra”, Trans. Bot. Soc. Edin., 35, 6781.Google Scholar
Nielson, R. L., 1951. “Effect of soil minerals on earthworms”, N.Z. J. Agric., 83, 433435.Google Scholar
Phemister, J., 1948. British Regional Geology. “Scotland: The Northern Highlands.” H.M.S.O., Edinburgh.Google Scholar
Read, H. H., 1935. British Regional Geology. “Scotland: The Grampian Highlands.” H.M.S.O., Edinburgh.Google Scholar
Roebuck, W. D., 1918. “The molluscan fauna of the Outer Hebrides”, Scot. Nat., 275286.Google Scholar
Russell, E. W., 1950. Soil Conditions and Plant Growth. 8th revised ed. Longmans, London.Google Scholar
Satchell, J. E., 1955 a. “Some aspects of earthworm ecology”, Soil Zoology, 180199. Butterworths, London.Google Scholar
Satchell, J. E., 1955 a. “Behaviour of electric current in soil and its effect on distribution of earthworms expelled around an electrode”, Soil Zoology, 358364.Google Scholar
Svendsen, J. A., 1955. “Earthworm population studies: a comparison of sampling methods”, Nature, 175, 864.Google Scholar
Tansley, A. G., 1939. The British Islands and their Vegetation. C.U.P.Google Scholar