Crepipatella dilatata (Lamarck, 1822) (Calyptraeidae): An example of reproductive variability among gastropods

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Reproductive characteristics of a species are often defined from a small number of individuals collected from a single location at one particular time. However, this study reveals that the South American gastropod Crepipatella dilatata (Lamarck, 1822) shows an unusually high level of intraspecific v...

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Autores principales: Zelaya, Diego Gabriel, Pechenik, Jan A., Gallardo, Carlos S.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2012
Materias:
Ciencias Naturales
Gastrópodos
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/84521
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-84521
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Gastrópodos
spellingShingle Ciencias Naturales
Gastrópodos
Zelaya, Diego Gabriel
Pechenik, Jan A.
Gallardo, Carlos S.
Crepipatella dilatata (Lamarck, 1822) (Calyptraeidae): An example of reproductive variability among gastropods
topic_facet Ciencias Naturales
Gastrópodos
description Reproductive characteristics of a species are often defined from a small number of individuals collected from a single location at one particular time. However, this study reveals that the South American gastropod Crepipatella dilatata (Lamarck, 1822) shows an unusually high level of intraspecific variability in some key reproductive characteristics: the number of egg capsules brooded per female, the size of the egg capsules, the number of eggs per capsule and the sizes and size distributions of the uncleaved eggs. Larger females were more fecund than smaller ones, not because they produced more egg capsules, but because they produced capsules of significantly larger size. Such variability was evident not only when considering different populations, but also within a single population sampled in different years, as well as among specimens collected during a single sampling event. Thus our data emphasize the importance of obtaining information from numerous specimens per locality as well as from specimens from different localities and in different years when describing the reproductive characteristics of any particular taxon.
format Articulo
Articulo
author Zelaya, Diego Gabriel
Pechenik, Jan A.
Gallardo, Carlos S.
author_facet Zelaya, Diego Gabriel
Pechenik, Jan A.
Gallardo, Carlos S.
author_sort Zelaya, Diego Gabriel
title Crepipatella dilatata (Lamarck, 1822) (Calyptraeidae): An example of reproductive variability among gastropods
title_short Crepipatella dilatata (Lamarck, 1822) (Calyptraeidae): An example of reproductive variability among gastropods
title_full Crepipatella dilatata (Lamarck, 1822) (Calyptraeidae): An example of reproductive variability among gastropods
title_fullStr Crepipatella dilatata (Lamarck, 1822) (Calyptraeidae): An example of reproductive variability among gastropods
title_full_unstemmed Crepipatella dilatata (Lamarck, 1822) (Calyptraeidae): An example of reproductive variability among gastropods
title_sort crepipatella dilatata (lamarck, 1822) (calyptraeidae): an example of reproductive variability among gastropods
publishDate 2012
url http://sedici.unlp.edu.ar/handle/10915/84521
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AT pechenikjana crepipatelladilatatalamarck1822calyptraeidaeanexampleofreproductivevariabilityamonggastropods
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bdutipo_str Repositorios
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