Summary
The intertidal aphid, Pemphigus trehernei, is restricted to aster plants (Aster tripolium) growing near the edges of creeks and salt pans in low areas on tidal saltmarshes. Aphid populations in mid-marsh areas do not show an equivalent edge effect. In low-marshes the edge soil generally has more surface cracks and cavities which can accommodate aphids and a higher % air space than soil from regions away from edges. Adults and 1st instars can penetrate edge soil more readily than non-edge soil. Aphid abundance is positively correlated with % air space in low-marsh regions. Aphid populations established on potted asters were destroyed or reduced to very low levels when transferred to non-edge regions of low-marsh areas. It is suggested that aphid distribution is primarily limited by soil conditions, especially the extent of soil drainage.
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A'Brook, J.: The effect of planting date and spacing on the incidence of groundnut rosette disease and of the vector Aphis craccivora Koch, at Mokwa, Northern Nigeria. Ann. appl. Biol. 54, 199–208 (1964)
A'Brook J.: The effect of plant spacing on the number of aphids trapped over the groundnut crop. Ann. appl. Biol. 61, 289–294 (1968)
Braun-Blanquet, J.: Pflanzensoziologie, Wien: Springer 1927
Chapman, V. J.: Biological flora of the British Isles. Halimione portulacoides (L.) Aell. J. Ecol. 38, 214–222 (1950)
Chapman, V. J.: Studies in salt marsh ecology. IX. Changes in salt marsh vegetation at Scolt Head Island. J. Ecol. 47, 619–639 (1959)
Clapham, A. R., Tutin, T. G., Warburg, E. F.: Flora of the British Isles, 2nd ed. Cambridge: Cambridge University Press 1962
Evans, P. D., Ruscoe, C. N. E., Treherne, J. E.: Observations on the biology and submergence behaviour of some littoral beetles. J. mar. biol. Ass. U.K. 51, 375–386 (1971)
Foster, W. A.: The biology of a salt marsh aphid (Pemphigus sp.). Unpublished Ph.D. Thesis, University of Cambridge (1974)
Foster, W. A.: A new species of Pemphigus Hartig (Homoptera: Aphidoidea) from Western Europe. J. Ent. (B.) (in press, 1975a)
Foster, W. A.: The life history and population biology of an intertidal aphid, Pemphigus trehernei Foster. Trans. R. ent. Soc. (in press, 1975b)
Foster, W. A., Treherne, J. E.: The effects of tidal submergence on an intertidal aphid, Pemphigus trehernei Foster. J. Anim. Ecol. (in press, 1976)
Gonzalez, D., Rawlins, W. A.: Aphid sampling efficiency of Möericke traps affected by height and background. J. econ. Ent. 61, 109–114 (1968)
Gray, A. J.: Variation in Aster tripolium L., with particular reference to some British populations. Unpublished Ph.D. Thesis, University of Keele (1971)
Harper, A. M.: Sugar-beet root aphid, Pemphigus betae Doane (Homoptera: Aphididae), in Southern Alberta. Can. Ent. 95, 863–873 (1963)
Hubbard, C. E.: Grasses: a guide to their structure, identification, uses and distribution in the British Isles, 2nd ed. Harmondsworth: Penguin Books 1968
Lange, W. H., Benson, L. C., Force, D. C., Grigarick, A. A., McCalley, N. F.: Lettuce root aphid. Calif. Agric. II (No. 5), 7, 8, 15 (1957)
MacLeod, D. A.: The morphology and genesis of salt marsh soils and the changes taking place in them on reclamation. Unpublished Ph.D. Thesis, University of Cambridge (1967)
Smith, J. G.: Some effects of crop background on populations of aphids and their natural enemies on brussel sprouts. Ann. appl. Biol. 63, 326–330 (1969)
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Foster, W.A., Treherne, J.E. The distribution of an intertidal aphid, Pemphigus trehernei foster, on marine saltmarshes. Oecologia 21, 141–155 (1975). https://doi.org/10.1007/BF00345557
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DOI: https://doi.org/10.1007/BF00345557