Genetic Diversity in Marine Molluscs: A Test of the Niche‐Width Variation Hypothesis

B. Lavm, E. Nevo

Research output: Contribution to journalArticlepeer-review

Abstract

Abstract. A test of the niche width variation hypothesis was conducted in the three Mediterranean littoral species of the family Trochidae: Monodonta turbinata, M. turbiformis and Gibbula richardi. Allozymic variation encoded by 26 gene loci was analyzed, and the levels of polymorphism (P), heterozygosity (H) and allele diversity per locus (A) were estimated and appear to support the niche‐width variation hypothesis. The broad‐niche species, M. turbiformis and G. richardi are more polymorphic and heterozygous than the relatively narrow‐niche M. turbinata (P = 0.571; 0.731 and 0.417; H = 0.108; 0.116 and 0.078; A = 2.025; 2.489 and 1.965, respectively).

Original languageEnglish
Pages (from-to)335-342
Number of pages8
JournalMarine Ecology
Volume2
Issue number4
DOIs
StatePublished - Dec 1981

Keywords

  • allozymes
  • Ecological niche
  • genetic variability
  • natural selection

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Aquatic Science
  • Ecology

Fingerprint

Dive into the research topics of 'Genetic Diversity in Marine Molluscs: A Test of the Niche‐Width Variation Hypothesis'. Together they form a unique fingerprint.

Cite this