titoli, abstracts, parole chiave >>>
Macrozoobenthos e decomposizione fogliare in ecosistemi fluviali sardi: prime considerazioni sul fiume Silis (Sardegna Settentrionale)

Mascolo, Rossella and Careddu, Giovanni Antonio and Rosa, Maria Nives (1997) Macrozoobenthos e decomposizione fogliare in ecosistemi fluviali sardi: prime considerazioni sul fiume Silis (Sardegna Settentrionale). Bollettino della Società sarda di scienze naturali, Vol. 31 (1996/97), p. 31-44. ISSN 0392-6710. Article.

[img]
Preview
Full text disponibile come PDF Richiede visualizzatore di PDF come GSview, Xpdf o Adobe Acrobat Reader
803Kb

Abstract

The purposes of this research were to examine and compare the breakdown rates of one specie (Ulmus minor) of tree leaves at three sites along Silis River (Northern Sardinia) and to follow macroinvertebrate leaf colonization, focusing our attention on the values of abundance, biomass and density of macrozoobenthos and its functional groups, based on feeding mechanism. About macroinvertebrate analysis, the organisms of shredder functional group showed the highest biomass for all the three sites examined, according to the fast decay coefficients. On the three sites studied macroinvertebrate communities proved themselves to become slightly different as a result of an increasing number of collectors from the upstream site 1 to the downstream site 3 according to the theory of the River Continuum Concept.

Item Type:Article
ID Code:3170
Status:Published
Refereed:Yes
Uncontrolled Keywords:Stream macrozoobenthos, feeding relationship, leaf breakdown, biotic index
Subjects:Area 05 - Scienze biologiche > BIO/07 Ecologia
Divisions:001 Università di Sassari > 01 Dipartimenti > Zoologia e genetica evoluzionistica
Publisher:Gallizzi
ISSN:0392-6710
Publisher Policy:Depositato per gentile concessione dell'Editore
Deposited On:19 Nov 2009 12:51

I documenti depositati in UnissResearch sono protetti dalle leggi che regolano il diritto d'autore

Repository Staff Only: item control page