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Query: keyword: "Gastropoda"

41 to 50 of 73
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41   Article: Inventarisatie van de landslakken van Noord-Brabant (Mollusca: Gastropoda).
A Boesveld, in: Nederlandse Faunistische Mededelingen Leiden, Vol. 24 (2006), p. 55-88
42   Article: Inventarisatie van de landslakken van de Zeeuwse kust, met de nadruk op de nauwe korfslak Vertigo angustior (Mollusca: Gastropoda).
A. Boesveld, in: Nederlandse Faunistische Mededelingen Leiden, Vol. 25 (2006), p. 69-86
43   Article: I made use of the known dates of reclamation (and of afforestations) in the IJsselmeerpolders in The Netherlands to assess evolutionary adaptation in Cepaea nemoralis. At 12 localities (three in each polder), I sampled a total of 4390 adult individuals in paired open and shaded habitats, on average 233m apart, and scored these for genetic shell colour polymorphisms. The results show (highly) significant differentiation at most localities, although the genes involved differed per locality. Overall, though, populations in shaded habitats had evolved towards darker shells than those in adjacent open habitats, whereas a 'Cain & Sheppard' diagram (proportion yellow shells plotted against ‘effectively unbanded’ shells) failed to reveal a clear pattern. This might suggest that thermal selection is more important than visual selection in generating this pattern. Trait differentiation, regardless of whether they were plotted against polder age or habitat age, showed a linear increase of differentiation with time, corresponding to a mean rate of trait evolution of 15–31 kilodarwin. In conclusion, C. nemoralis is capable of rapid and considerable evolutionary differentiation over 1–25 snail generations, though equilibrium may be reached only at longer time scales
M. Schilthuizen, in: Heredity, Vol. 110 (2013), p. 247-252
44   Article: Hummelinckiella borinquensis, a new genus and species in the subfamily Stephopominae (Caenogastropoda: Siliquariidae) with notes on the genera Caporbis and Stephopoma and the “Blasian subregion”
M.J. Faber, R.G. Moolenbeek, in: Bulletin Zoologisch Museum, Vol. 17 (1999), p. 41-46
45   Article: Heliconoides linneensis sp. nov., a new holoplanktonic gastropod (Mollusca, Thecosomata) from the Late Oligocene of the Aquitaine Basin (France, Landes)
A.W. Janssen, in: Zoologische Mededelingen, Vol. 82 (2008), p. 69-72
46   Article: Gulella johannae spec. nov. (Gastropoda, Pulmonata, Streptaxidae), a new land snail from the Drakensberg range in Limpopo Province, South Africa, with notes on G. johannesburgensis (M. & P.)
A.C. van Bruggen, in: Zoologische Mededelingen, Vol. 80 (2006), p. 63-72
47   Article: Gulella adami, a new species of land snail from the Ivory Coast, West Africa (Gastropoda Pulmonata: Streptaxidae)
A.C. van Bruggen, in: Zoologische Mededelingen, Vol. 68 (1994), p. 1-4
48   Article: Gastropod skeletal defences: land, freshwater, and sea compared
Geerat J. Vermeij, in: Vita Malacologica, Vol. 13 (2015), p. 1-25
49   Article: Frustrating facts about area cladistics and species individuality
E. Gittenberger, in: Bijdragen tot de Dierkunde, Vol. 60 (1990), p. 151-154
50   Article: Fossil predation: did some clavilithine fasciolariid gastropods employ valve-wedging to feed on bivalves?
Geerat J. Vermeij, in: Vita Malacologica, Vol. 13 (2015), p. 27-30