1. The size spectra of the macroinvertebrate community in ponds with different hydroperiod length were compared along the Tyrrhenian coast of central Italy. Invertebrate sampling was conducted in 21 ponds (8 permanent and 13 temporary) in three different mesohabitats (central sediments. littoral sediments and macrophytes) during spring 2002. Several pond characteristics were also recorded. 2. Density and biomass size spectra were calculated for 123 samples and covered six orders of magnitude in size ranging from 0.126 mu g to 0.5 g. The shape of the density size distribution was unimodal, the mode being around 0.05-0.1 mg, with Oligochaeta and Diptera (Chironomidae) numerically dominant in almost all size classes. 3. The periodic drying affected the total biomass per size class, shown by comparing spectra among mesohabitats and pond types. The higher biomass in all size classes showed by permanent pond and central sediments reflects the major stability of permanent biotopes and, within these, of central sediments. 4. The overall shape of the size spectrum was similar among pond types, mesohabitats and sampling dates. Biomass of larger size classes was linked to variables describing pond stability. 5. We suggest that the biomass size spectrum of benthic macroinvertebrates is a potentially useful tool for quantitative wetland biomonitoring. In small Mediterranean ponds, the regularity of biomass size spectra implies that size-structuring processes are independent of the hydrological stress. Copyright (c) 2005 John Wiley & Sons, Ltd.

Macroinvertebrate size spectra of Mediterranean ponds with differing hydroperiod length / Solimini, ANGELO GIUSEPPE; Valentina Della, Bella; Bazzanti, Marcello. - In: AQUATIC CONSERVATION-MARINE AND FRESHWATER ECOSYSTEMS. - ISSN 1052-7613. - 15:6(2005), pp. 601-611. (Intervento presentato al convegno Meeting on Conservation and Monitoring of Pond Biodiversity tenutosi a Lullier Geneva, SWITZERLAND nel OCT 28-30, 2004) [10.1002/aqc.747].

Macroinvertebrate size spectra of Mediterranean ponds with differing hydroperiod length

SOLIMINI, ANGELO GIUSEPPE;BAZZANTI, Marcello
2005

Abstract

1. The size spectra of the macroinvertebrate community in ponds with different hydroperiod length were compared along the Tyrrhenian coast of central Italy. Invertebrate sampling was conducted in 21 ponds (8 permanent and 13 temporary) in three different mesohabitats (central sediments. littoral sediments and macrophytes) during spring 2002. Several pond characteristics were also recorded. 2. Density and biomass size spectra were calculated for 123 samples and covered six orders of magnitude in size ranging from 0.126 mu g to 0.5 g. The shape of the density size distribution was unimodal, the mode being around 0.05-0.1 mg, with Oligochaeta and Diptera (Chironomidae) numerically dominant in almost all size classes. 3. The periodic drying affected the total biomass per size class, shown by comparing spectra among mesohabitats and pond types. The higher biomass in all size classes showed by permanent pond and central sediments reflects the major stability of permanent biotopes and, within these, of central sediments. 4. The overall shape of the size spectrum was similar among pond types, mesohabitats and sampling dates. Biomass of larger size classes was linked to variables describing pond stability. 5. We suggest that the biomass size spectrum of benthic macroinvertebrates is a potentially useful tool for quantitative wetland biomonitoring. In small Mediterranean ponds, the regularity of biomass size spectra implies that size-structuring processes are independent of the hydrological stress. Copyright (c) 2005 John Wiley & Sons, Ltd.
2005
body size; invertebrates; invertebrates body size; italy; mesohabitats; permanent ponds; size distribution; temporary ponds
01 Pubblicazione su rivista::01a Articolo in rivista
Macroinvertebrate size spectra of Mediterranean ponds with differing hydroperiod length / Solimini, ANGELO GIUSEPPE; Valentina Della, Bella; Bazzanti, Marcello. - In: AQUATIC CONSERVATION-MARINE AND FRESHWATER ECOSYSTEMS. - ISSN 1052-7613. - 15:6(2005), pp. 601-611. (Intervento presentato al convegno Meeting on Conservation and Monitoring of Pond Biodiversity tenutosi a Lullier Geneva, SWITZERLAND nel OCT 28-30, 2004) [10.1002/aqc.747].
File allegati a questo prodotto
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/396525
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 17
  • ???jsp.display-item.citation.isi??? 13
social impact