The consortium of the sponge Ephydatia fluviatilis (L.) living on the common reed Phragmites australis in Lake Piediluco (central Italy)

Gaino, Elda; Lancioni, Tisza; Porta, Gianandrea La; Todini, Barbara

doi:10.1023/b:hydr.0000027735.11246.41

Cited by 24 publications

(15 citation statements)

References 28 publications

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“…The concept itself has become considerably richer. The component species of the consortium is termed a consort (Masing 1981), or a consorting organism or unit (Gaino et al 2004). The species in relation to which the consortium is described is called edificator (by Beklemishev 1951) or determinant (by Masing 1981) or inconsort (Belomesyatseva 2002).…”

Section: Consortiummentioning

confidence: 99%

“…Belomesyatseva 2002; Gaino et al 2004;Matafonov et al 2005;Gómez 2007;Porras-Alfaro et al 2008), the concept of consortium has a slightly more specific contemporary usage in soil microbiology, where it marks the groups of functionally related species. Popa (2004: 210) defines it this way: "consortium: in microbiology, an association of microorganisms from different species living in metabolic interdependence".…”

Section: Consortiummentioning

confidence: 99%

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Ecosystems are Made of Semiosic Bonds: Consortia, Umwelten, Biophony and Ecological Codes

Kull

2010

Biosemiotics

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The paper focuses on the semiotic principles of the organisation of ecosystems, attempting to find concepts that point to relations and not to elements.(1) Consortium (the term introduced by Johannes Reinke around 1873) can be defined as a group of organisms connected via (sign) relations, or groups of interspecific semiosic links in biocoenosis. The consortial relations include trophic and topic relations, both implying a recognition (identification) of the object by an organism involved (these, i.e., are sign relations). These relations are ecologically inheritable.(2) Umwelt (the term introduced by Jakob von Uexküll around 1909) can be defined as a set of relations an organism has in an ecosystem (as in a semiosphere). The formation of an umwelt is dependent on the modelling system of the organism. (3) Biophony (the term introduced by Bernie Krause around 2000) denotes the coordination of inter-and intra-species relations in a soundscape of a biological community. This can be seen as a special case of Komposition as defined by Jakob and Thure von Uexküll. (4) Ecological code (as introduced, e.g. by Alexander Levich around 1977) can be defined as the set of (sign) relations (regular irreducible correspondences) characteristic to an entire ecosystem. We also mention the concepts of ecomones and coactones (introduced by Marcel Florkin in 1965) as the substances which are responsible for mediation of ecological inter-individual relations. All the relations as sign-relations evidently imply both a static or structuralist description (in terms of codes), and a processual description (in terms of semiosis carried on by interpretation). We conclude that all the above mentioned concepts can be viewed as conceptually connected and are suitable for semiotic description of biological communities.

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Section: Consortiummentioning

confidence: 99%

Section: Consortiummentioning

confidence: 99%

Ecosystems are Made of Semiosic Bonds: Consortia, Umwelten, Biophony and Ecological Codes

Kull

2010

Biosemiotics

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“…Knowledge on freshwater sponge-dwelling assemblages is presented by a few surveys, most of which are confined to the lists of species composition. Researches on this subject were conducted in Europe (Arndt, 1928;Konopacka, Sicinski, 1985;Trylis, 1997;Gaino et al, 2004), North and South America (Matteson, Jacobi, 1980;Resh, 1976;Melão, Rocha, 1996) and the Baikal region (Kamaltynov et al, 1993). However, freshwater sponges from vast territories of Central and Middle Asia (Rezvoj, 1926;Manconi, Pronzato, 2008) are poorly studied, and sponge-associated invertebrates in this region are almost unknown.…”

Section: Introductionmentioning

confidence: 99%

Freshwater sponges and their associated invertebrates in the Great Lakes Basin (Mongolia)

Palatov

Sokolova

2017

Ukr J Ecol

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The Great Lakes Depression is a large semi-arid region, whose freshwater invertebrate fauna is poorly known. Examining 37 waterbodies, we found freshwater sponges Eunapius fragilis and Spongilla lacustris (fragments) in the only one small river.Invertebrate species complex found on the sponges comprises nine species, their contribution to the assemblage was assessed by the metabolic intensity index.

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“…In Lake Trasimeno, a statistical analysis revealed that E. fluviatilis selectively colonizes hard substrata (rocks, pebbles, concrete and artificial objects), whereas soft sediments are strictly avoided (Lancioni & Gaino, 2007). The reed stalks of Phragmites australis, although representing suitable substrata for this species (Gaino et al, 2003(Gaino et al, , 2004, seem to be disregarded, even though museum specimens dated 1968 testify to the colonization of such a substrate at that time. Sponges of the genus Ephydatia are also considered amongst the most tolerant to siltation (Harrison, 1974), also as a consequence of the ability of their exo-pinacoderm to incorporate particles bypassing the typical filtering mechanism (Willenz & Van de Vyver, 1982).…”

Section: Introductionmentioning

confidence: 99%

Spicule records of Ephydatia fluviatilis as a proxy for hydrological and environmental changes in the shallow Lake Trasimeno (Umbria, Italy)

et al. 2011

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This research shows the results of an analysis of siliceous spicules found in sediment cores collected in Lake Trasimeno (Umbria, Italy), a shallow lake that experienced an important water level lowering during the last century. A morphological analysis of sedimentary sponge records revealed that the spicules accumulated in the lake sediments over the last 150 years are attributable to Ephydatia fluviatilis, the only sponge species found in the lake in recent years. The stratigraphic analysis of the cores showed that the abundance and size of the sponge spicules (megascleres) have remarkably decreased, suggesting that a significant depletion of the sponge fauna occurred, particularly during the first half of the twentieth century. A correlation analysis has identified morpho-hydrological and related variables (the theoretical fraction of lake surface subjected to resuspension and the amount of total suspended solids) as the most significant factors explaining the change in density of sponge spicules. Two ecological explanations of the sponge decline are proposed, based on the sensitivity of the sponge both to the availability of suitable hard substrata for colonization, and to the amount of wind-resuspended solids. One-ended sigmoid response curves were obtained by regression and corresponding transfer functions were derived, which allow the mean water depth of the lake and total suspended solids to be inferred from spicule density records. The results support the use of sponge spicules as a paleohydrological and paleoecological proxy, application of which appears particularly promising for shallow-water systems.

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The consortium of the sponge Ephydatia fluviatilis (L.) living on the common reed Phragmites australis in Lake Piediluco (central Italy)

Cited by 24 publications

References 28 publications

Ecosystems are Made of Semiosic Bonds: Consortia, Umwelten, Biophony and Ecological Codes

Ecosystems are Made of Semiosic Bonds: Consortia, Umwelten, Biophony and Ecological Codes

Freshwater sponges and their associated invertebrates in the Great Lakes Basin (Mongolia)

Spicule records of Ephydatia fluviatilis as a proxy for hydrological and environmental changes in the shallow Lake Trasimeno (Umbria, Italy)

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