|
|
|
|
|
| Nin, Cecília Schuler; UFRGS; Ruppenthal, Eduardo Luiz; UFRGS; Rodrigues, Gilberto Gonçalves; UFRGS. |
| The aim of the study was to verify the temporal variation of allochthonous material input into a stream, and which structures contribute to the organic material pool, as well as to analyze the occurrence of macroinvertebrates associated with the litter. Samples were taken from October, 2004 to October, 2005 in two transects along the riparian zone. At each transect, three sampling stations were chosen. At each one, submersed and suspended collectors (1.5 m above bottom) were installed. Input and retention of coarse benthic organic material were analyzed and classified as flowers and diaspores, (seeds and fruits) and vegetative structures (leaves and branches). There were no statistical differences between input of material in suspended and submersed... |
|
Palavras-chave: Allocthonous organic material; Litter input; Headwater stream; Aquatic macroinvertebrates 2.00.00.00-6 Ciências Biológicas matéria orgânica alóctone; Produção primária; Riachos; Macroinvertebrados aquáticos. |
| Ano: 2009 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/355 |
| |
|
|
| Callisto,Marcos; Goulart,Michael D.C.; Moreno,Pablo; Martins,Rogério P.. |
| Commensalism between Corydalus Latreille, 1802 (Megaloptera, Corydalidae) and Corynoneura Winnertz, 1846 (Diptera, Chironomidae, Orthocladiinae) larvae was recorded in Indaiá stream, at 1,380 m a.s.l. (Parque Nacional da Serra do Cipó, 19º-20ºS, 43º-44ºW) and in the headwaters of São Francisco river, at 1,300-1,700 m a.s.l. (Parque Nacional da Serra da Canastra, 20º00'-20º30'S, 46º15'-47º00'W), in Minas Gerais state, Brazil. Seventy eight Corydalus larvae (range 22-88 mm) were sampled: 61 in the Indaiá stream and 17 in other two streams. Twelve Corydalus larvae (22-79 mm) in the Indaiá stream and three out of 15 larvae in the headwaters of São Francisco river (38-50 mm) had Corynoneura, larvae and pupae on their gills (3rd to 6th) and a few larvae attached... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Headwater stream; Phoresy; Predator-prey relationship; São Francisco river. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752006000200032 |
| |
|
|
|
