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δ13C and δ15N comparisons among different co-occurring lichen species from littoral rocky substrata

Published online by Cambridge University Press:  06 January 2005

Pascal Riera
Pascal Riera
Affiliation:
Station Biologique de Roscoff, Unité Mixte de Recherche Adaptation et Diversité en Milieu Marin, Université Pierre & Marie Curie, Place Georges-Teissier, BP 74, 29682 Roscoff cedex, France
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Extract

The distributions of natural stable isotopes of carbon and nitrogen have been extensively investigated in a variety of primary producers such as vascular plants and algae to provide baseline information of the trophic structure of various ecosystems (Currin et al. 1995). However, there have been few attempts to use this ecological approach to characterize lichens which frequently constitute the principal vegetation in many rocky habitats (Gilbert 2000). Rocky sea shores are characterized by a vertical zonation of biological communities which fall into three major zones: supralittoral, mediolittoral and infralittoral. The supralittoral zone is rarely submerged and is typically covered by a vegetation of lichens and cyanobacteria (Lewis 1964; Russel 1991).

Type
Short Communications
Information
The Lichenologist , Volume 37 , Issue 1 , January 2005 , pp. 93 - 95
Copyright
© British Lichen Society 2005

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