Abstract
The distributions of the rough periwinkles L. saxatilis and L. arcana are considered in the northern half of Robin Hood’s Bay, North Yorkshire, England. The relative proportions of these two species at different sites have been determined, using the criterion of the female reproductive system for their identification. The commonest shell colour morphs are grey (both species) and orange-banded (L. saxatilis). Hence information has been obtained not only on the proportion of banded animals in the total population, but on the proportion of banded L. saxatilis.
The northern end of the bay comprises a long, almost continuous, boulder field within which the proportion of L. arcana increases with greater exposure. Most of the boulder field comprises largely sandstone boulders but shale predominates at the most exposed site and, at the most sheltered site, which is separated from the rest of the boulder field by a short stretch of shingle, the boulders are exclusively shale. Banded morphs predominate in those regions where most of the boulders are sandstone but grey morphs predominate in the shale areas. A possible explanation for the distribution of these morphs is given in terms of gene flow. One site near the centre of the bay is unusual in that it contains L. arcana exclusively. However it comprises an artificial vertical substratum which is probably quite exposed.
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References
Atkinson, W. D. & S. F. Newbury, 1984. The adaptations of the rough winkle, Littorina rudis, to desiccation and to dislodgement by wind and waves. J. anim. Ecol. 53: 93–105.
Atkinson, W. D. & T. Warwick, 1983. The role of selection in the colour polymorphism of Littorina rudis Maton and Littorina arcana Hannaford Ellis ( Prosobranchia: Littorinidae). Biol. J. linn. Soc. 20: 137–151.
Denny, M. W., 1983. A simple device for recording the maximum force exerted on intertidal organisms. Limnol Oceanogr. 28: 1269–1273.
Grahame, J. & P. J. Mill, 1986. Relative size of the foot of two species of Littorina on a rocky shore in Wales. J. Zool. 208: 229–236.
Grahame, J. & P. J. Mill, 1986. Relative size of the foot of two species of Littorina on a rocky shore in Wales. J. Zool. 208: 229–236.
Hannaford Ellis, C. J., 1978. Littorina arcana sp. nov: A new species of winkle (Gastropoda: Prosobranchia: Littorinidae). J. Conch. 29: 304.
Hannaford Ellis, C. J., 1979. Morphology of the oviparous rough winkle, Littorina arcana Hannaford Ellis, 1978, with notes on the taxonomy of the L. saxatilis species complex ( Prosobranchia: Littorinidae). J. Conch. 30: 43–56.
Hannaford Ellis, C. J., 1983. Patterns of reproduction in four Littorina species. J. moll. Stud. 49: 98–106.
Heller, J., 1975. The taxonomy of some British Littorina species with notes on their reproduction (Mollusca: Prosobranchia). J. linn. Soc., Zool. 56: 131–151.
Heller, J., 1976. The effects of exposure and predation on the shell of two British winkles. J. Zool. 179: 201–213.
Hughes, R. N. & R. W. Elner, 1979. Tactics of a predator, Carcinus maenas, and the morphological responses of the prey, Nucella lapillus. J. anim. Ecol. 48: 65–78.
James, B. L., 1968. The distribution and keys of species in the family Littorinidae and of their digenian parasites in the region of Dale, Pembrokeshire. Field Studies 2: 615–650.
Janson, K. & P. Sundberg, 1983. Multivariate morphometric analysis of two varieties of Littorina saxatilis from the Swedish west coast. Mar. Biol. 74: 49–53.
Janson, K. & R. D. Ward, 1984. Microgeographic variation in allozyme and shell characters in Littorina saxatilis Olivi ( Prosobranchia: Littorinidae). Biol. J. linn. Soc. 22: 289–307.
Johannesson, B., 1986. Shell morphology of Littorina saxatilis Olivi: the relative importance of physical factors and predation. J. exp. mar. Biol. Ecol. 102: 183–195.
Pettitt, C., 1973. An examination of the distribution of shell pattern in Littorina saxatilis ( Olivi) with particular regard to the possibility of visual selection in this species. Malacologia 14: 339–343.
Pettitt, C., 1974. A review of the predators of Littorina, especially those of L. saxatilis ( Olivi) [Gastropoda: Prosobranchial. J. Conch. 28: 343–357.
Raffaelli, D. & R. N. Hughes, 1978. The effects of crevice size and availability on populations of Littorina rudis and Littorina neritoides. J. anim Ecol. 47: 71–83.
SAS Institues Inc., 1982. SAS User Guide: Statistics. Cary North Carolina.
Sundberg, P., 1988. Microgeographic variation in shell characters of Littorina saxatilis Olivi-a question mainly of size? Biol. J. linn. Soc. 35: 169–184.
Ward, R. D., T. Warwick & A. J. Knight, 1986. Genetic analysis of ten polymorphic enzyme loci in Littorina saxatilis ( Prosobranchia: Mollusca). Heredity 57: 233–241.
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© 1990 Kluwer Academic Publishers
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Dytham, C., Grahame, J., Mill, P.J. (1990). Distribution, abundance and shell morphology of Littorina saxatilis (Olivi) and Littorina arcana Hannaford Ellis at Robin Hood’s Bay, North Yorkshire. In: Johannesson, K., Raffaelli, D.G., Hannaford Ellis, C.J. (eds) Progress in Littorinid and Muricid Biology. Developments in Hydrobiology, vol 56. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-0563-4_19
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DOI: https://doi.org/10.1007/978-94-009-0563-4_19
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