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| Giangarelli,Douglas C; Freiria,Gabriele A; Colatreli,Olavo P; Suzuki,Karen M; Sofia,Silvia H. |
| Eufriesea violacea (Blanchard) is a very seasonal euglossine species, more frequently found in the southern and southeastern regions of Brazil. A number of studies have revealed large variations in the abundance of males of this species present in Atlantic Forest remnants throughout both regions. In this paper, we report variations in the abundance of E. violacea males sampled in several forest patches of different sizes (ranging from 10 to 580 ha), and we propose that this species is possibly sensitive to the reduction in size of forest remnants. Surveys were carried out in nine forest remnants of Atlantic rainforest located in northern Paraná State, southern Brazil. Male euglossine bees were collected with an entomological net when visiting scent-baits,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brazilian Atlantic rainforest; Euglossine bee; Euglossini; Bee abundance; Neotropics. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2009000500008 |
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| Mielke,Marcelo S.; Matos,Elyabe M.; Couto,Virginia B.; Almeida,Alex-Alan F. de; Gomes,Fábio P.; Mangabeira,Pedro Antonio Oliveira. |
| An experiment was conducted with the aim to analyze the effects of soil flooding and leaf position on net primary productivity and whole plant carbon balance of Annona glabra L. (Annonaceae) seedlings, a highly flood-tolerant tree, native to the tropical Americas. All seedlings survived a period of 56 days of flooding without symptoms of stress. Flooding induced significant increments in root, stem and whole-plant biomass (P <0.01), and in the root:shoot mass ratio (P <0.05). Measurements of leaf gas exchange were conducted at days four, 11, 18 and 56 after flooding, on the first (L1), fourth (L4) and seventh (L7) fully expanded leaves from the apex of each seedling. The mean values of stomatal conductance to water vapour (g s) and net photosynthetic... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Annonaceae; Stomatal conductance; Brazilian Atlantic rainforest; Net photosynthetic rate; Flood tolerance. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062005000400025 |
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