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Adaptations to tube dwelling in the Bivalvia

Savazzi, Enrico

Lethaia, 1982-08, Vol.15 (3), p.275-297 [Periódico revisado por pares]

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Título:
Adaptations to tube dwelling in the Bivalvia
Autor: Savazzi, Enrico
Assuntos: ecology ; functional morphology ; Marine ; Mollusca ; Pelecypoda ; Pholadacea ; tube dwelling
É parte de: Lethaia, 1982-08, Vol.15 (3), p.275-297
Notas: 10.18261/let
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Descrição: Tube‐dwelling Bivalvia, which enclose themselves in secondary calcareous envelopes (crypts), evolved polyphyletically within the Gastrochaenacea, Pholadacea and Clavagellacea. The adaptive strategies for maintaining a suitable life position within a soft sediment were the main factor affecting the evolution of these forms. These basic strategies (boring in or cementation to bioclasts; construction of long vertical crypts anchored within the sediment by their own length; elongation and bending of the siphonal extremity of the crypt to reach to the surface after disturbances; passive reorientation by water currents; neo‐formation of motile structures) were adopted convergently by representatives of the three superfami‐lies.
Editor: Oxford, UK: Scandinavian University Press
Idioma: Inglês;Norueguês

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