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| Vergne,Driélli Carvalho; Almeida,Hisaias Souza; Campos,Caroline Cambraia Furtado; Martins,Natália. S.; Ramos,Flavio Nunes. |
| ABSTRACT Pasture and crop lands restrict seed dispersal near remnant forest fragments, especially by restricting the movements of dispersal agents and limiting propagule dispersal. Some factors can improve seed dispersal in open areas, such as the presence of high numbers of isolated trees in close proximity to forest fragments. We sought to determine if: (i) the structural characteristics and (ii) densities of isolated trees in pasture lands, and (iii) their distances from the forest fragments, influence seed dispersal. We installed 18 seed traps in each of six pastures (total=108 traps) bordering forest fragments distributed over 6 distance classes from the forest edges (0, 5, 10, 20, 40 and 80 m). We determined the characteristics of the plants... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Animal dispersal; Crown coverage; Isolated trees; Pastures; Seed rain. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062016000300486 |
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| Martins,Valéria Forni; Cazotto,Lara Priscila Domingues; Santos,Flavio Antonio Maës dos. |
| In ecological communities, the proportion of plant species with different dispersal syndromes is known as the dispersal spectrum, which can result from different selective pressures such as climate. This is because variations in temperature, humidity, atmospheric pressure and precipitation result in distinct flora and fauna among different sites. If climate conditions along an altitudinal range act as a strong direct or indirect selective pressure on dispersal syndromes, the dispersal spectrum among plant communities in different altitudes should be distinct. We organized the dispersal syndromes in five hierarchical levels according to the levels of detail in diaspore morphology and, consequently, different degrees of specificity to the dispersers. Then we... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Animal dispersal; Biotic dispersal; Bird dispersal; Hierarchy of classification of dispersal syndromes. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032014000100101 |
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