Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"Nucella lapillus"”.
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Environmental change impacts on shell formation in the muricid Nucella lapillus
… of the important intertidal predatory muricid Nucella lapillus both in situ and across heterogeneous environmental gradients. The aim was to identify potential coping mechanisms of N. lapillus to environmental change and provide a more coherent picture of shell formation responses along large …
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Investigation of the cytogenetics of marine and terrestrial gastropods
… land snail Cepaea nemoralis (L.) marine snail Nucella lapillus (L.) is presented. The first study (Part 1) concerns the investigation of the karyotype of C. nemoralis in populations from a region of the Berkshire Downs (U.K.)in which there are marked area effects for both the visible and …
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A computer aided palaeoecological study of selected Red Crag (Lower Pleistocene) gastropods
… tool to the Palaeontologist. The shell shape of Nucella lapillus (L.) is studied and used as a palaeoenvironmental indicator showing that the rocky coasts of the Red Crag were not exposed to severe wave action. Neptunea conträria (L.) shell shape is analysed using Raupian parameters with a …
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Studies on the interactions between larval stages of digenetic flukes and their molluscan hosts
Snails of the species Thais (Nucella) lapillus (L) were collected from Scarborough South Bay, and Robin Hoods Bay, North Yorkshire. The presence of the rediae of Parorchia acanthus NICOLL (Digenea: PHILOPHTHALMIDAE) in T.lapillus individuals was previously associated with abnormal shell growth by …
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Variation in parasitism of intertidal invertebrates, with a focus on trematodes on the southwest of Ireland
… periwinkle Littorina littorea, the dogwhelk Nucella lapillus and the common limpet Patella vulgata, were sampled on three shores of differing water classifications, defined by the Water Framework Directive, and Lough Hyne Marine Reserve, Co. Cork. Large variation in parasite richness and …
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Biogeographic Patterns, Predator Identity, and Chemical Signals Influence the Occurrence and Magnitude of Non-lethal Predator Effects
… system consisting of the rocky intertidal whelk Nucella lapillus (Linnaeus, 1758) and a suite of its predators, the native rock crab Cancer irroratus (Say, 1817), Jonah crab Cancer borealis (Stimpson, 1859), and the invasive green crab Carcinus maenas (Linnaeus, 1758). Nucella use chemical cues …