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Conservation of marine biodiversity: biology, taxonomy, biogeography and sustainable development of target sponges

Melis, Paolo (2015) Conservation of marine biodiversity: biology, taxonomy, biogeography and sustainable development of target sponges. Doctoral Thesis.

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Abstract

The assessment of biodiversity is the basis to plan any activity of conservation.
This doctoral thesis aims to contribute to sponges global diversity assessment focusing on cryptic environments i.e. caves. A multidisciplinary approach, combining morphological, molecular, ecological and statistics techniques, attempts to solve current issues in taxonomy, biogeography and ecology of some taxa of Mediterranean Porifera with high conservation value. Other aims are to clarify the main adaptive strategies of some target taxa to colonize caves.
The geographic range and variation in size and shape of skeletal spicules of two cave-dweller species belonging to the Mediterranean endemic genus Petrobiona (Calcarea: Lithonida: Petrobionidae) are investigated using traditional and geometric morphometric approaches.
A checklist of sponge fauna from anchialine environments represents a contribution to the biological knowledge of extreme caves at global scale, and a multi-year study of cave-dwelling faunal assemblages (composition, structure and topographic distribution) focus on the Bue Marino Cave (Sardinia, Orosei Gulf) as model in relation to the physico-chemical water parameters, with notes on the adaptive strategies of sponges.
Integrative taxonomy by morphological and genetic approaches is performed to describe a new species from the Bue Marino Cave and to attempt a phylogenetic reconstruction of the genus Protosuberites using three different markers (COI, 18S rRNA, and 28S rRNA).

Item Type:Doctoral Thesis
ID Code:10476
Contributors:Manconi, Renata
Publisher:Università degli studi di Sassari
Uncontrolled Keywords:Cave dwelling sponges, barcoding, coastal and marine caves, spatial distribution, adaptive strategies, biodiversity, Sardinia
Subjects:Area 05 - Scienze biologiche > BIO/05 Zoologia
Divisions:001 Università di Sassari > 01-a Nuovi Dipartimenti dal 2012 > Scienze della Natura e del Territorio
Cicli, scuole e corsi:Ciclo 27 > Scienze della Natura e delle sue risorse > Biologia ambientale
Deposited On:18 Mar 2015 10:31

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