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| Medeiros,Renato Borges de; Focht,Telmo; Menegon,Leandro Luiz; Freitas,Mário Ruschel. |
| The objective of this research was to evaluate the seed longevity of Eragrostis plana Nees buried at different soil depths, in a natural-grassland area in the Pampa biome (46 m altitude, 30º05´S and 51º40´W) of Rio Grande do Sul State, Brazil. The experimental design was a split-plot type in complete blocks with two factors: seeds buried at five different depth levels (soil surface and 2.5, 5, 10 and 20 cm) and seven exhumation dates. The blocks were allocated in natural grassland grazed by cattle, allocated in a 12-m-long transection. Fifty-four permeable nylon bags filled with 100 seeds in each division, with five vertical divisions, were buried in each row. Seven exhumation dates were used: the first on October 14, 2003 and the last on January 14, 2006.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biological invasion; Invader species; Pampa biome; Recovered seeds; Seed bank; Surviving seeds. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014001100561 |
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| Paraluppi,Norival D. |
| Calliphoridae of the region of the upper Urucu river basin, West of the city of Manaus, Amazonas State, Brazil, were sludied considering composition and abundance of the species, capturing 14729 specimen distributcd as follows: Cochliomyia macellaria (Fabricius) (12643), Chloroprocta idioidea (Robineau-Desvoidy) (1667), Phaenicia eximia (Wiedemann) (354), Hemilucilia semidiaphana (Rondani) (54), H. segmentaria (Fabricius) (6), Chrysomya pularia (Wiedemann) (1) e C. albiceps (Wiedemann) (1). The rcsults showthat Cochliomyia macellaria has a facility to adapt rapidly to an environment changed by man. The fact that was registered two specimen of Chrysomya Robineau-Desvoidy in highly isolated localilies contributed to showthc ability of thesc flics in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Calliphoridae; Central Amazônia; Invader species; Species composition. |
| Ano: 1996 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000300003 |
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