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Observations on the behaviour, salinity relations and colour change of Ligia italica from madeira

Published online by Cambridge University Press:  09 October 2019

John Davenport
Affiliation:
University Marine Biological Station, Millport, Isle of Cumbrae, Scotland, KA28 OEG

Abstract

Ligia italica Fabricius is a day-active isopod on the shores of Madeira. The population migrates up and down the shore with the tide, browsing on lichens and macroalgae. Shore bird predation is negligible; foraging wall lizards are the only daytime predators. Ligia italica retreats into crevices at night. It exploits plant material within supralittoral and intertidal pools and enters pools with salinities as high as 74‰. Ligia italica emerges from pools at intervals to breathe in air; such emersion lasts no more than two minutes. Ligia italica on Madeira has no colour change ability, the isopods remaining dark grey/black whatever the background.

Type
Short Communications
Copyright
Copyright © Marine Biological Association of the United Kingdom 1994

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References

Abbott, C.H., 1940. Shore isopods: niches occupied, and degrees of transition toward land life with special reference to the family Ligyidae. Proceedings of the Sixth Pacific Science Congress, 3, 505511.Google Scholar
Bannerman, D.A. & Bannerman, M., 1965. Birds of the Atlantic islands, vol. 2: a history of the birds of Madeira, the Desertas and the Porto Santo Islands . Edinburgh: Oliver & Boyd.Google Scholar
Barnes, T.C., 1932. Salt requirements and space orientation of the littoral isopod Ligia in Bermuda. Biological Bulletin. Marine Biological Laboratory, Woods Hole, 63, 496504.Google Scholar
Davenport, J. & Dellinger, T., in press. Melanism and foraging behaviour in an intertidal population of the Madeiran lizard Podarcis (=Lacerta) dugesii (Milne-Edwards, 1829). Herpetological journal.Google Scholar
Fingerman, M., 1963. The control of chromatophores. Oxford: Pergamon Press.Google Scholar
Jepson, P.R. & Zonfrillo, B., 1988. Bird notes from Madeira, summer 1986. Bocagiana, 117, 110.Google Scholar
Nicholls, A.G., 1931a. Studies on Ligia oceanica. I. A. Habitat and effect of change of environment on respiration. B. Observations on moulting and breeding. Journal of the Marine Biological Association of the United Kingdom, 17, 655673.Google Scholar
Nicholls, A.G., 1931b. Studies on Ligia oceanica. Part II. The processes of feeding, digestion and absorption, with a description of the structure of the foregut. Journal of the Marine Biological Association of the United Kingdom, 17, 675707.Google Scholar
Ondo, Y. & Mori, S., 1956. Periodic behaviour of the shore isopod, Megaligia exotica (Roux) I. Observations under natural conditions. Japanese Journal of Ecology, 5, 161167.Google Scholar
Parker, G.H., 1948. Animal colour changes and their neurohumours: a survey of investigations 1910–1943. Cambridge University Press.Google Scholar
Parry, G., 1953. Osmotic and ionic regulation in the isopod crustacean Ligia oceanica . Journal of Experimental Biology , 30, 567574.Google Scholar
Smith, H.G., 1938. The receptive mechanism of the background response in chromatic behaviour of Crustacea. Proceedings of the Royal Society (B), 125, 250263.Google Scholar
Vandel, A., 1960. Ligia italica Fabricius, 1798. In Faune de France vol. 64. Isopodes terrestres (premiére partie) , pp. 122127. Liechtenstein: Kraus.Google Scholar
Walden, H.W., 1984. On the origin, affinities, and evolution of the land Mollusca of the mid-Atlantic islands, with special reference to Madeira. Boletim do Museu Municipal do Funchal, 36, 5182.Google Scholar
Willmer, P.G., Baylis, M. & Simpson, C.L., 1989. The roles of colour change and behaviour in the hygrothermal balance of a littoral isopod, Ligia oceanica . Oecologia, 78, 349356.Google Scholar
Wilson, W.J., 1970. Osmoregulatory capabilities in isopods: Ligia occidentalis and Ligia pallasii. Biological Bulletin . Marine Biological Laboratory, Woods Hole, 138, 96108.Google Scholar