Detecting shape differences in species of the Littorina saxatilis complex by morphometric analysis

Journal of Molluscan Studies

Volumn 73, Issue 2, 2007, Pages 147-154

  Conde Padin P ^a   Grahame, J W ^b   Rolan Alvarez E ^a  

^a UNIVERSITY OF VIGO   (Spain)

^b UNIVERSITY OF LEEDS   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

DISCRIMINANT ANALYSIS; EXPERIMENTAL STUDY; MARINE ENVIRONMENT; MORPHOLOGY; MORPHOMETRY; SHAPE ANALYSIS; SNAIL; SYMPATRY;

ENGLAND; EURASIA; EUROPE; UNITED KINGDOM; WESTERN EUROPE;

CATHARANTHUS ROSEUS; GASTROPODA; LITTORINA SAXATILIS;

EID: 34547758457     PISSN: 02601230     EISSN: 14643766     Source Type: Journal    
DOI: 10.1093/mollus/eym009     Document Type: Article

References (43)

1. BOOKSTEIN, F.L. 1991. Morphometric tools for landmark data. Cambridge University Press, New York.
2. CALEY, K., GRAHAME, J. & MILL, P.J. 1995. A geographically-based study of shell shape in small rough periwinkles. Hydrobiologia, 309: 181-193.
3. CARVAJAL-RODRÍGUEZ, A, CONDE-PADÍN, P. & ROLÁN-ALVAREZ, E. 2005. Decomposing shell form into size and shape by geometric-morphometric methods in two sympatric ecotypes of Littorina saxatilis. Journal of Molluscan Studies, 71: 313-318.
4. CARVAJAL-RODRÍGUEZ, A. & RODRÍGUEZ, M.G. 2005. MODICOS: Morphometric and Distance Computational Software oriented for evolutionary studies. Online Journal of Bioinformatics, 6: 34-41.
5. CONDE-PADÍN, P., CARVAJAL-RODRÍGUEZ, A., CARBALLO, M., CABALLERO, A. & ROLÁN-ALVAREZ, E. 2007. Genetic variation for shell traits in a direct-developing marine snail involved in a putative sympatric ecological speciation process. Evolutionary Ecology (in press).
6. CRUZ, R., ROLÁN-ALVAREZ, E. & GARCÍA, C. 2001. Sexual selection on phenotypic traits in a hybrid zone of Littorina saxatilis. Journal of Evolutionary Biology, 14: 773-785.
7. DYTHAM, C., MILL, P.J., GRAHAME, J. & O'HIGGINS, P. 1992. Fourier analysis as a size-free descriptor of shape for rough periwinkle shells. In: Proceedings of the Third International Symposium on Littorinid Biology. (J. Grahame, P.J. Mill & D.G. Reid, eds), 127-133. Malacological Society of London, London.
8. GRAHAME, J. & MILL, P.J. 1986. Relative size of the foot of two species of Littorina on a rocky shore in Wales. Journal of Zoology, 208: 229-236.
9. GRAHAME, J. & MILL, P.J. 1989. Shell shape variation in Littorina saxatilis and L. arcana: a case of character displacement? Journal of the Marine Biological Association of the United Kingdom, 69: 837-855.
10. GRAHAME, J. & MILL, P.J. 1992. Local and regional variation in shell shape of rough periwinkles in southern Britain. In: Proceedings of the Third International Symposium on Littorinid Biology. (J. Grahame, P.J. Mill & D.G. Reid, eds), 99-106. Malacological Society of London, London.
11. GRAHAME, J., MILL, P.J.& BROWN, A.C. 1990. Adaptive and nonadaptive variation in two species of rough periwinkle (Littorina) on British shores. Hydrobiologia, 193: 223-231.
12. GRAHAME, J., WILDING, C.S. & BUTLIN, R.K. 2006. Adaptation to a steep environmental gradient and an associated barrier to gene exchange in Littorina saxatilis. Evolution, 60: 268-278.
13. HOLLANDER, J., LINDEGARTH, M.&JOHANNESSON, K. 2005. Local adaptation but not geographical separation promotes assortative mating in a snail. Animal Behaviour, 70: 1209-1219.
14. HULL, S.L., GRAHAME, J. & MILL, P.J. 1996. Morphological divergence and evidence for reproductive isolation in Littorina saxatilis (Olivi) in northeast England. Journal of Molluscan Studies, 62: 89-99.
15. JANSON, K. 1982. Phenotypic differentiation in Littorina saxatilis Olivi (Mollusca, Prosobranchia) in a small area on the Swedish west coast. Journal of Molluscan Studies, 48: 167-173.
16. JANSON, K. & SUNDBERG, P. 1983. Multivariate morphometric analysis of two varieties of Littorina saxatilis from the Swedish west coast. Marine Biology, 74: 49-53.
17. JOHANNESSON, B. 1986. Shell morphology of Littorina saxatilis Olivi: the relative importance of physical factors and predation. Journal of Experimental Marine Biology and Ecology, 102: 183-195.
18. JOHANNESSON, B. & JOHANNESSON, K. 1996. Population differences in behaviour and morphology in the snail Littorina saxatilis: phenotypic plasticity or genetic differentiation? Journal of Zoology, 240: 475-493.
19. JOHANNESSON, K., JOHANNESSON, B. & ROLÁN-ALVAREZ, E. 1993. Morphological differentiation and genetic cohesiveness over a microenvironmental gradient in the marine snail Littorina saxatilis. Evolution, 47: 1770-1787.
20. JOHNSTON, M.R., TOBACHNICK, R.E. & BOOKSTEIN, F.L. 1991. Landmark-based morphometrics of spiral accretionary growth. Paleobiology, 17: 19-36.
21. MANLY, B.F.J. 1986. Multivariate statistical methods. Chapman & Hall, London.
22. MILL, P.J. & GRAHAME, J. 1995. Shape variation in the rough periwinkle Littorina saxatilis on the west and south coasts of Britain. Hydrobiologia, 309: 61-71.
23. NEWKIRK, G.F. & DOYLE, R.W. 1975. Genetic analysis of shellshape variation in Littorina saxatilis on an environmental cline. Marine Biology, 30: 227-237.
24. PARSONS, K., ROBINSON, B. & HRBEK, T. 2003. Getting into shape: an empirical comparison of several traditional truss-based and a newer geometric morphometric method. Environmental Biology of Fishes, 67: 417-431.
25. PICKLES, A.R. & GRAHAME, J. 1999. Mate choice in divergent morphs of the gastropod mollusc Littorina saxatilis (Olivi): speciation in action? Animal Behaviour, 58: 181-184.
26. PIERCE, C.A., BLOCK, R.A. & AGUINIS, H. 2004. Cautionary note on reporting eta-squared values from multifactor ANOVA designs. Educational and Psychological Measurement, 64: 916-924.
27. REID, D.G. 1996. Systematics and evolution of Littorina. Ray Society, London.
28. ROHLF, F.J. 1993. Relative warp analysis and an example of its application to mosquito wings. In: Contributions to morphometrics. Vol. 8 (L.F. Marcus, E. Bello & A. García Valdecasas, eds), 8: 131-159. Museo Nacional de Ciencias Naturales, Madrid.
29. ROHLF, F.J. 1998. TPSRELW: Relative warps. Version 1.20. New York State University at Stony Brook.
30. ROHLF, F.J. & BOOKSTEIN, F.L. 2003. Computing the uniform component of shape variation. Systematic Biology, 52: 66-69.
31. ROHLF, F.J., LOY, A. & CORTI, M. 1996. Morphometric analysis of old world Talpidae (Mammalia, Insectivora) using partial-warp scores. Systematic Biology, 45: 344-362.
32. ROHLF, F.J. & MARCUS, L.F. 1993. A revolution in morphometrics. Trends in Ecology and Evolution, 8: 129-132.
33. ROHLF, F.J. & SLICE, D. 1990. Extensions of the Procrustes method for the optimal superimposition of landmarks. Systematic Zoology, 39: 40-59.
34. ROLÁN-ALVAREZ, E. 2007. Sympatric speciation as a by-product of ecological adaptation in the Galician Littorina saxatilis hybrid zone. Journal of Molluscan Studies, 71: 1-10.
35. ROLÁN-ALVAREZ, E., JOHANNESSON, K. & ERLANDSSON, J. 1997. The maintenance of a cline in the marine snail Littorina saxatilis: the role of home site advantage and hybrid fitness. Evolution, 51: 1838-1847.
36. SMALL, M.P. & GOSLING, E.M. 2000. Genetic structure and relationships in the snail species complex Littorina arcana Hannaford Ellis, L. compressa Jeffreys and L. saxatilis (Olivi) in the British isles using SSCPs of cytochrome-b fragments. Heredity, 84: 692-701.
37. SMITH, D.C., MILL, P.J. & GRAHAME, J. 1995. Environmentally induced variation in uric acid concentration and xanthine dehydrogenase activity in Littorina saxatilis (Olivi) and L. arcana Hannaford Ellis. Hydrobiologia, 309: 111-116.
38. SOKAL, R.R. & ROHLF, F.J. 1995. Biometry. Freeman & Co., New York.
39. STONE, J.R. 1998. Landmark-based thin-plate spline relative warp analysis of gastropod shells. Systematic Biology, 47: 254-263.
40. SUNDBERG, P. 1988. Microgeographic variation in shell characters of Littorina saxatilis Olivi, a question mainly of size? Biological Journal of the Linnean Society, 35: 169-184.
41. WARMOES, T., DUMOULIN, E. & REID, D.G. 1992. The distribution of Littorina and Melarhaphe along the continental coast of the English Channel. In: Proceedings of the Third International Symposium on Littorinid Biology. (J. Grahame, P.J. Mill & D.G. Reid, eds), 293-303. Malacological Society of London, London.
42. WILDING, C.S., BUTLIN, R.K. & GRAHAME, J. 2001. Differential gene exchange between parapatric morphs of Littorina saxatilis detected using AFLP markers. Journal of Evolutionary Biology, 14: 611-619.
43. ZELDITCH, M.L., SWIDERSKI, D.L., SHEETS, H.D. & FINK, W.L. 2004. Geometric morphometrics for biologists. A primer. Elsevier Academic Press, London.