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Abstract:

We describe the seasonal variations of the insect community of the rain pools in a park of Buenos Aires during a 1-year period, based on a weekly sampling programme. We also analyse the relationships between the observed biotic patterns and some physical and meteorological variables. Four periods, fairly coincident with the seasons of the year, were graphically identified as functions of temperature, rainfall, flooded area, number of rain pools, depth and taxonomic richness. A total of 45 insect taxa was identified: 18 Coleoptera, 15 Diptera, 9 Heteroptera, 1 Ephemeroptera and 2 Odonata. Culicidae represented 76% of the pooled abundance of insects, probably related to their rapid development before the pools dry up. Taxonomic richness was maximum at the end of the summer (32), in coincidence with maximum rainfalls and temperatures. Inversely, the minimum richness (2) was recorded during the spring drought. Richness was positively correlated to the flooded area and to the number of pools on each sampling date. The species recorded throughout the study period were: Aedes albifasciatus, Culex eduardoi, Culex pipiens, Liodessus sp., Rhantus signatus signatus, Tropisternus setiger, Tropisternus lateralis limbatus and Sigara platensis. Some of the species recorded are considered pioneer in temporary habitats. Both coleopterans and heteropterans are likely to persist in the park through repeated colonisation from more permanent habitats. Habitat duration and flooded area were positively correlated to richness in each one of the rain pools.

Registro:

Documento: Artículo
Título:Urban rain pools: Seasonal dynamics and entomofauna in a park of Buenos Aires
Autor:Fischer, S.; Marinone, M.C.; Fontanarrosa, M.S.; Nieves, M.; Schweigmann, N.
Filiación:Departamento de Ciencias Biologicas, Facultad de Ciencias Exactas y Nat., Universidad de Buenos Aires, Pabellon II, Ciudad Universitaria, C1428 EHA Buenos Aires, Argentina
Palabras clave:Culicidae; Insect community; Seasonal dynamics; Temporary pools; Urban rain pools; Biodiversity; Drought; Floods; Meteorology; Rain pools; Rain; insect; pool; seasonal variation; species richness; Argentina; Aedes albifasciatus; Coleoptera; Culex pipiens; Culicidae; Diptera; Ephemeroptera; Heteroptera; Hexapoda; Insecta; Liodessus; Odonata; Rhantus; Sigara; Tropisternus; Tropisternus lateralis
Año:2000
Volumen:441
Página de inicio:45
Página de fin:53
DOI: http://dx.doi.org/10.1023/A:1017591122911
Título revista:Hydrobiologia
Título revista abreviado:Hydrobiologia
ISSN:00188158
CODEN:HYDRB
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00188158_v441_n_p45_Fischer

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Citas:

---------- APA ----------
Fischer, S., Marinone, M.C., Fontanarrosa, M.S., Nieves, M. & Schweigmann, N. (2000) . Urban rain pools: Seasonal dynamics and entomofauna in a park of Buenos Aires. Hydrobiologia, 441, 45-53.
http://dx.doi.org/10.1023/A:1017591122911
---------- CHICAGO ----------
Fischer, S., Marinone, M.C., Fontanarrosa, M.S., Nieves, M., Schweigmann, N. "Urban rain pools: Seasonal dynamics and entomofauna in a park of Buenos Aires" . Hydrobiologia 441 (2000) : 45-53.
http://dx.doi.org/10.1023/A:1017591122911
---------- MLA ----------
Fischer, S., Marinone, M.C., Fontanarrosa, M.S., Nieves, M., Schweigmann, N. "Urban rain pools: Seasonal dynamics and entomofauna in a park of Buenos Aires" . Hydrobiologia, vol. 441, 2000, pp. 45-53.
http://dx.doi.org/10.1023/A:1017591122911
---------- VANCOUVER ----------
Fischer, S., Marinone, M.C., Fontanarrosa, M.S., Nieves, M., Schweigmann, N. Urban rain pools: Seasonal dynamics and entomofauna in a park of Buenos Aires. Hydrobiologia. 2000;441:45-53.
http://dx.doi.org/10.1023/A:1017591122911