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| Rodrigues,Luís R.R.; Barros,Regina M.S.; Assis,Maria de Fátima L.; Marques-Aguiar,Suely A.; Pieczarka,Julio C.; Nagamachi,Cleusa Y.. |
| The karyotypes of Phyllostomus discolor and P. hastatus from Eastern Amazonia were studied by G-, C-, G/C sequential and Ag-NOR techniques. Both species presented 2n = 32, with the autosome complement composed of 30 bi-armed in P. discolor and 28 bi-armed plus 1 acrocentric in P. hastatus. In both species, the X chromosome is medium submetacentric while the Y is minute acrocentric. The present study found only one difference between the karyotypes of P. discolor and P. hastatus: the smallest autosome (pair 15) is bi-armed in discolor and acrocentric in hastatus, a result best explained by pericentric inversion. The C-banding revealed constitutive heterochromatin only at the centromeric regions of all chromosomes, with the NOR site located at the distal... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572000000300016 |
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| Marques-Aguiar,Suely A.; Melo,Cláudia C. S.; Aguiar,Gilberto F. Souza; Queiroz,João Alberto L.. |
| A short inventory of the mammalian fauna occurring in an area of the Marajó Island was performed during the rainy season. In addition to captures by using Sherman and Tomahawk traps, and mist-nets, indirect evidence was considered, e.g. finding of body fragments of specimens, vocalization, and testimonies from local people. A total of 57 species (22 families) was recorded. None of them is presently considered as critically endangered according to the IUCN criteria. First confirmed record for the fruit-eating bat Platyrrhinus brachycephalus (Rouk & Carter, 1972) in the Marajó archipelago. Additional surveys conducted in both wet and dry seasons are required for improving the profile of richness and diversity of mammal species in that region. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mammals survey; Marajó Island; Amazonia. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752002000300022 |
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