Invertebrate communities from different wetland types of Tierra del Fuego

1. Loss or deterioration of wetlands, which represent highly valuable environments, is a worldwide phenomenon. Sustainable management of wetlands, however, requires detailed understanding of the factors controlling their communities. The present study report the taxonomic composition and richness of...

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Autores principales: Burroni, N.E., Marinone, M.C., Freire, M.G., Schweigmann, N., Loetti, M.V.
Formato: JOUR
Materias:
Insects
Macroinvertebrates
Microcrustaceans
Richness
South America
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_1752458X_v4_n1_p39_Burroni
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_1752458X_v4_n1_p39_Burroni
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spelling todo:paper_1752458X_v4_n1_p39_Burroni2023-10-03T16:32:30Z Invertebrate communities from different wetland types of Tierra del Fuego Burroni, N.E. Marinone, M.C. Freire, M.G. Schweigmann, N. Loetti, M.V. Insects Macroinvertebrates Microcrustaceans Richness South America 1. Loss or deterioration of wetlands, which represent highly valuable environments, is a worldwide phenomenon. Sustainable management of wetlands, however, requires detailed understanding of the factors controlling their communities. The present study report the taxonomic composition and richness of invertebrate assemblages in different wetland types in Tierra del Fuego.2. Aquatic invertebrates from 79 freshwater wetlands in Tierra del Fuego were inventoried in January 2001 and 2002 (austral summer). All wetlands were classified into six categories: roadside pools, floodplain pools, flooded quarries, peatland ponds, beaver ponds and large ponds. The wetland type effect on the taxonomic richness was analysed by one-way anova. To identify wetland types with similar invertebrate communities, cluster analysis has been performed using occurrence frequency of each taxa in each wetland type and the Jaccard similarity index.3. A total of 35 taxa were identified, including 21 microcrustaceans, 12 insects, 1 gastropod and 1 cnidarian. Copepods and cladocerans were among the most frequent taxa (occurrence frequency >40%) in most wetland types. No significant differences in taxonomic richness were found among wetlands types (P = 0.076). The cladogram based on invertebrate taxonomic composition resulting from similarity in taxonomic composition among wetland types showed three distinct clusters; one included flooded quarries, peatland ponds, beaver ponds and floodplain pools, the second one the large ponds and the third one roadside pools.4. Our results suggest that the wetland types studied have different conservation values, like the clusters obtained in the cladogram show. Artificial wetlands, such as the roadside pools, could play an important role in maintaining connectivity between isolated fragments of pristine, natural wetlands. © 2010 The Authors. Insect Conservation and Diversity © 2010 The Royal Entomological Society. Fil:Burroni, N.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Schweigmann, N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_1752458X_v4_n1_p39_Burroni
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Insects
Macroinvertebrates
Microcrustaceans
Richness
South America
spellingShingle Insects
Macroinvertebrates
Microcrustaceans
Richness
South America
Burroni, N.E.
Marinone, M.C.
Freire, M.G.
Schweigmann, N.
Loetti, M.V.
Invertebrate communities from different wetland types of Tierra del Fuego
topic_facet Insects
Macroinvertebrates
Microcrustaceans
Richness
South America
description 1. Loss or deterioration of wetlands, which represent highly valuable environments, is a worldwide phenomenon. Sustainable management of wetlands, however, requires detailed understanding of the factors controlling their communities. The present study report the taxonomic composition and richness of invertebrate assemblages in different wetland types in Tierra del Fuego.2. Aquatic invertebrates from 79 freshwater wetlands in Tierra del Fuego were inventoried in January 2001 and 2002 (austral summer). All wetlands were classified into six categories: roadside pools, floodplain pools, flooded quarries, peatland ponds, beaver ponds and large ponds. The wetland type effect on the taxonomic richness was analysed by one-way anova. To identify wetland types with similar invertebrate communities, cluster analysis has been performed using occurrence frequency of each taxa in each wetland type and the Jaccard similarity index.3. A total of 35 taxa were identified, including 21 microcrustaceans, 12 insects, 1 gastropod and 1 cnidarian. Copepods and cladocerans were among the most frequent taxa (occurrence frequency >40%) in most wetland types. No significant differences in taxonomic richness were found among wetlands types (P = 0.076). The cladogram based on invertebrate taxonomic composition resulting from similarity in taxonomic composition among wetland types showed three distinct clusters; one included flooded quarries, peatland ponds, beaver ponds and floodplain pools, the second one the large ponds and the third one roadside pools.4. Our results suggest that the wetland types studied have different conservation values, like the clusters obtained in the cladogram show. Artificial wetlands, such as the roadside pools, could play an important role in maintaining connectivity between isolated fragments of pristine, natural wetlands. © 2010 The Authors. Insect Conservation and Diversity © 2010 The Royal Entomological Society.
format JOUR
author Burroni, N.E.
Marinone, M.C.
Freire, M.G.
Schweigmann, N.
Loetti, M.V.
author_facet Burroni, N.E.
Marinone, M.C.
Freire, M.G.
Schweigmann, N.
Loetti, M.V.
author_sort Burroni, N.E.
title Invertebrate communities from different wetland types of Tierra del Fuego
title_short Invertebrate communities from different wetland types of Tierra del Fuego
title_full Invertebrate communities from different wetland types of Tierra del Fuego
title_fullStr Invertebrate communities from different wetland types of Tierra del Fuego
title_full_unstemmed Invertebrate communities from different wetland types of Tierra del Fuego
title_sort invertebrate communities from different wetland types of tierra del fuego
url http://hdl.handle.net/20.500.12110/paper_1752458X_v4_n1_p39_Burroni
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AT marinonemc invertebratecommunitiesfromdifferentwetlandtypesoftierradelfuego
AT freiremg invertebratecommunitiesfromdifferentwetlandtypesoftierradelfuego
AT schweigmannn invertebratecommunitiesfromdifferentwetlandtypesoftierradelfuego
AT loettimv invertebratecommunitiesfromdifferentwetlandtypesoftierradelfuego
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