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| Lôbo,D; Tabarelli,M; Leal,IR. |
| Although seed dispersal by ants might reduce seed predation near the parent plants, predation on discarded seeds clustered on nest refuse piles may reduce any initial benefit provided by seed removal. Here we examine the fate of Croton sonderianus seeds that were discarded by Pheidole fallax Mayr ants on their nest refuses in caatinga vegetation of northeast Brazil. We collected all seeds discarded in refuse piles of 20 nests and within a radius of 50 cm from their borders, and examined them for evidence of predation. A total of 3,017 seeds were recorded either located in the P. fallax refuse piles (89.1%) or nest vicinity (10.9%). Predation was three fold higher in nest vicinity as compared to refuse piles. By removing seeds from beneath parent plants and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brazil; Caatinga; Myrmecochory; Seed dispersal; Semi-arid vegetation. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2011000400005 |
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| Paluch,Márlon; Mielke,Olaf Hermann Hendrik; Nobre,Carlos Eduardo Beserra; Casagrande,Mirna Martins; Melo,Douglas Henrique Alves; Freitas,André Victor Lucci. |
| Comprising a natural reserve with 359 ha of "montane forest" inserted on the Brazilian semi-arid, the Parque Ecológico João Vasconcelos Sobrinho (PEJVS), locally known as "Brejo dos Cavalos" is currently under high anthropogenic pressure. A list of 197 species of butterflies belonging to six families is presented, being 59 species of Hesperiidae, 4 of Papilionidae, 18 of Pieridae, 17 of Lycaenidae, 12 of Riodinidae and 87 of Nymphalidae. The butterfly community was composed mainly by widespread species commonly found in open habitats. There were also many species typical of forested areas such as Scada karschina delicata Talbot, 1932 (Danainae: Ithomiini), which is an endangered butterfly. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Inventory; Conservation; Species richness; Semi-arid vegetation. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032011000400020 |
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