The influence of size on the radula of Littoraria angulifera (Gastropoda: Littorinidae)

被引：8
|
作者：
Andrade, Sonia C. S. [1 ]
Solferini, Vera N. [1 ]
机构：
[1] Univ Estadual Campinas, Inst Biol, Dept Genet & Evolucao, BR-13083970 Campinas, SP, Brazil
来源：
MALACOLOGIA | 2006年 / 49卷 / 01期
关键词：
Littoraria angulifera; mangroves; phenotypic variation; radula; rock substratum;
D O I：
10.4002/1543-8120-49.1.1
中图分类号：
Q95 [动物学];
学科分类号：
071002 ;
摘要：
We evaluated the radula shape of Littoraria angulifera from mangroves and rocky shores on the Brazilian coast. We compared snails sampled in a mangrove and on a rocky shore located about 100 m apart, and also from locations hundreds of km apart. Smaller individuals sampled on rocky shores have elongated cusps, whereas larger individuals have subequal cusps, similar to those observed in mangrove specimens. Distinct factors in each environment might exert different effects on the radula shape of L. angulifera. The greater morphological diversity observed on the rocky shores might be due to the heterogeneity of algae composition and partitioning of resources, a hypothesis that can be tested in further studies.
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页码：1 / 5
页数：5
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