PADIS

Pubblicazioni Aperte DIgitali Sapienza > Biologia ambientale > SCIENZE ECOLOGICHE >

Please use this identifier to cite or link to this item: http://hdl.handle.net/10805/2008

Title: Meccanismi di regressione e frammentazione dell’habitat nelle praterie di Posidonia oceanica
Authors: PATICCHIO, NICOLETTA
Tutor: ARDIZZONE, GIANDOMENICO
Keywords: LANDSCAPE
POSIDONIA
GIS
ECOLOGIA
Issue Date: 27-Feb-2013
Abstract: The aim of this PhD is to describe the current health status and the temporal evolution of P. oceanica meadows of Latium coast, describing their mode of regression through the analysis of the upper and lower limits position and the application of some principles and metrics of landscape ecology. Studies on landscape fragmentation have typically been conducted in terrestrial habitats, such as forests, where indices are used to quantify habitat loss and fragmentation in relation to changes in abundance and/or community structure of associated organisms (Lord and Norton 1990; Saunders et al. 1991; Opdam et al. 1993; Reed et al. 1996; Jorge and Garcia 1997; Trzcinski et al. 1999). There are numerous indices available to quantify terrestrial landscape fragmentation, yet presently there is a general consensus about the application of these indices, however no individual index can capture the full complexity of spatial patterns, multiple indices are required for analysing landscape configuration (Saura, 2002). Indices that quantify ecologically important spatial patterns are necessary for achieving the goal of landscape ecology: ‘to elucidate the relationship between landscape patterns and ecological processes’ (Turner, 1989). Although landscape indices have been also been used to quantify spatial patterns of various aquatic habitats (Bell and Hicks 1991; Irlandi 1994, 1997; Irlandi et al. 1995; Garrabou et al. 1998; Kendrick et al. 1999; Hovel and Lipcius 2001), such as seagrass. Seagrass ecosystems occur over broad spatial scales (tens to hundreds of kilometres) and are characterised by a continuum from fragmented patches to continuous meadows (Sleeman, 2005). Given the high ecological significance of seagrasses, it is necessary to define reliable measures that can be used by researchers and resource managers to identify fragmentation and quantify spatial change in relation to ecological processes (Sleeman, 2005).
URI: http://hdl.handle.net/10805/2008
Research interests: Study and monitoring of Posidonia oceanica meadows. Digital Cartography by computerized Territorial Systems (GIS), surveying using Remote Operated Vehicle (ROV). Marine ecology, marine biology(Fish, cephalopods, crustaceans).
Skills short description: Laurea Specialistica in Scienze del Mare e delle Acque Interne Titolo della tesi: “Struttura e composizione delle comunità demersali e macrobentoniche del Tirreno centrale”. Relatore G.D. Ardizzone --------- Laurea di primo livello in Scienze Naturali (curriculum Ecosistemi marini) Titolo della tesi: “Biologia e sviluppo di Trisopterus minutus capelanus (Teleostea gadidae)” Relatore Prof. G. D. Ardizzone
Personal skills keywords: Posidonia oceanica
Marine Landscape ecology
Benthos
Marine biology
ArcGis
Appears in PhD:SCIENZE ECOLOGICHE

Files in This Item:

File Description SizeFormat
pat_phd_013.pdf16.47 MBAdobe PDF


This item is protected by original copyright

Recommend this item

Items in PADIS are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback Sviluppo e manutenzione a cura del CINECA