Variability at different spatial scales of a coralligenous assemblage at Giannutri Island (Tuscan Archipelago, northwest Mediterranean)

Ferdeghini, Francesca; Acunto, Stefano; Cocito, Silvia; Cinelli, Francesco

doi:10.1007/978-94-017-1982-7_3

Cited by 30 publications

(34 citation statements)

References 21 publications

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“…Moreover, the high spatial variability among sites may be partially responsible for the lack of significant differences between assemblages. Coralligenous sessile assemblages show higher variability at the scale of a few meters, due to the patchy distribution of organisms, and they are more homogeneous at scales of 100s and 1000s of meters (Ferdeghini et al, 2000;Piazzi et al, 2004). Mobile macroinvertebrates also showed high variability among distant sites (100s of meters).…”

Section: Discussionmentioning

confidence: 99%

“…The structure and patterns of spatial and temporal variability of macroalgal and sessile macro-invertebrate assemblages of coralligenous habitat have been widely studied (Boudouresque, 1973;Ferdeghini et al, 2000;Cocito et al, 2002;Cocito, 2004;Piazzi et al, 2004Piazzi et al, , 2010Balata et al, 2005Balata et al, , 2006Virgilio et al, 2006;Abbiati et al, 2009;Piazzi & Balata, 2011;Ponti et al, 2011). On the contrary, information about mobile macro-invertebrate assemblages of coralligenous habitat is limited to the knowledge of the species composition of several areas (Bellan, 1964;Laubier, 1966;Hong, 1980Hong, , 1982Huelin & Ros, 1984;Zabala, 1984;Martin, 1987;Jimeno & Turon, 1995;Casellato & Stefanon, 2008), while little is known about patterns of variability.…”

Section: Introductionmentioning

confidence: 99%

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Spatial and temporal variability of mobile macro-invertebrate assemblages associated to coralligenous habitat

Bedini¹,

Bonechi²,

Piazzi³

2014

Medit. Mar. Sci.

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The study aimed to investigate patterns of spatial and temporal variability of mobile macroinvertebrate assemblages associated to coralligenous habitat. A multi-factorial sampling design was used to test the hypotheses that the structure of assemblages and their spatial and temporal variability changed in relation to substrate inclination. Moreover, macroalgae and sessile macroinvertebrates were also investigated in order to detect eventual relationships between sessile and mobile assemblages. A total of 236 mobile macro-invertebrate taxa were identified, among them 2 Platyhelminthes, 4 Sipuncula, 6 Nemertea, 27 Mollusca, 86 Annelida, 103 Arthropoda, 8 Echinodermata. The results of the study show that mobile macro-invertebrate assemblages of coralligenous habitat were little influenced by the inclination of substrate and by the morphology of sessile organisms, as patterns of variation were different between the two assemblages. Mobile macro-invertebrate assemblages changed among sampling dates within a one-year period and showed high variability at the spatial scale examined.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Spatial and temporal variability of mobile macro-invertebrate assemblages associated to coralligenous habitat

Bedini¹,

Bonechi²,

Piazzi³

2014

Medit. Mar. Sci.

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“…Of a total of 39 studies (Table 1), 18 explicitly recognised that rocky intertidal habitats are very convenient for fieldwork. The remaining papers dealt with the shallow subtidal (not deeper than 50 m), but the information was fragmented among shallow rocky bottoms (Kennelly & Underwood 1992, Fraschetti et al 2001, Fowler-Walker & Connell 2002, Irving et al 2004, bioconstructions (coralligenous formations, coral reefs) (Hughes et al 1999, Ferdeghini et al 2000, and soft bottoms (Morrisey et al 1992, Li et al 1997, Kendall & Widdicombe 1999, Stark et al 2003, Zajac et al 2003. Lagoons and estuaries, particularly relevant in terms of management of coastal habitats, have been largely neglected (but see Hodda 1990, Edgar & Barret 2002, Ysebaert & Herman 2002, De Biasi et al 2003.…”

Section: Review Of the Literaturementioning

confidence: 99%

Patterns of distribution of marine assemblages from rocky shores: evidence of relevant scales of variation

Fraschetti¹,

Terlizzi²,

Benedetti‐Cecchi³

2005

Mar. Ecol. Prog. Ser.

253

189

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Increasing evidence indicates that spatial and temporal pattern in ecological systems are not independent from the scale of measurement. In this study we used a hierarchical sampling design to examine spatial pattern in assemblages of algae and invertebrates in midshore and lowshore habitats of rocky coasts in the Mediterranean Sea, increasing the range of scales usually covered by this type of study in marine habitats. To put our results in a broader context, we also conducted a review of the literature targeting studies that explicitly investigated spatial patterns with hierarchical designs. We addressed two main questions: 1- how does small-scale variability compare to large-scale patterns of variation? 2- is there any pattern of variability that can be generalized across species and habitats? The review of the literature indicated that hierarchical analyses of spatial pattern have been limited to a narrow range of habitats and taxa and that very few studies have addressed regional scales of variation (1000s of km). The available data, however, did identify a general pattern: variability was larger at small spatial scales (meters) in almost all habitats, whereas variation over larger spatial scales (10s to 100s of km) depended on the specific habitat and taxa examined. In our case study, we obtained measures of spatial variability through the use of two alternative methods: hierarchical nested design and independent estimate of spatial variance between pairs of quadrats. Both approaches provided further support to the patterns displayed by the analysis of the literature. Most response variables exhibited large variation over small spatial scales, while the significance of mid- to large-scale variability differed between midshore and lowshore habitats and among taxa. Though a proper understanding of large-scale patterns will require additional comparisons across wide geographical areas, small-scale variability emerges as a general property of benthic assemblages in marine coastal habitats. We suggest that this pattern is common to a wide range of natural systems where assemblages are influenced by complex sets of physical and biological processes like those operating in the marine environment

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“…At present, the work of Pérès and Picard (1964), mainly based on northern part of the western Mediterranean basin, is the basis for knowledge on coralligenous communities, together with studies on distribution and abundance of the most representative species (Laborel, 1961;Laubier, 1966;Sarà, 1969;True, 1970;Augier, 1982;Hong, 1982). However, there are very few quantitative studies describing these communities (Gili and Ros, 1985a;Gili and Ballestreros, 1991;Abbiati et al, 1996;Garrabou et al, 1998;Ferdeghini et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

Distribution patterns of the sublittoral epibenthic assemblages on a rocky shoal in the Ligurian Sea (NW Mediterranean)

Cocito¹,

Bedulli²,

Sgorbini³

2002

Sci. Mar.

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Variability at different spatial scales of a coralligenous assemblage at Giannutri Island (Tuscan Archipelago, northwest Mediterranean)

Cited by 30 publications

References 21 publications

Spatial and temporal variability of mobile macro-invertebrate assemblages associated to coralligenous habitat

Spatial and temporal variability of mobile macro-invertebrate assemblages associated to coralligenous habitat

Patterns of distribution of marine assemblages from rocky shores: evidence of relevant scales of variation

Distribution patterns of the sublittoral epibenthic assemblages on a rocky shoal in the Ligurian Sea (NW Mediterranean)

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