|
|
|
|
|
| Cavarzere,Vagner; Alves,Fernanda; Machado,Érika; Rego,Marco Antônio; Silveira,Luís Fábio; Costa,Marcos Mendonça; Calonge-Méndez,Andrés. |
| Despite their wide use in ornithological surveys, point counts and mist nets follow protocols developed in temperate regions, with little attention to possible modifications for tropical systems. Using these methods on a 3-month basis from December 2009-January 2011 in two forest fragments in southeastern Brazil, we wished to evaluate how long these locations needed to be surveyed with point counts for a relatively complete avifaunal inventory (at least 90% of all species and contacts), and if mist net hourly captures can equally detect numbers of species and individuals. Daily counting with four 20-min points during five consecutive days in a rain forest (MC) detected 90% of the estimated species richness after 20 h (60 20-min point counts), while 17 h... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Avian abundance; Bird species richness; Bird surveying methods; Method efficiency; Neotropical forests. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492013002600001 |
| |
|
|
| LINK,ANDRÉS; STEVENSON,PABLO R. |
| Fruit dispersal syndromes (groups of plants with similar fruit morphology, presumably adapted to dispersal by a particular set of vectors) have been described in a variety of tropical localities. In some cases the presence of different syndromes in each locality suggests independent evolution of fruit traits in response to selective pressures imposed by the particular animal community in each place. However, it is still unclear how general are fruit syndromes, and this is important to understand the evolution of mutualistic relationships. We compiled morphological information from about 500 fleshy fruited species at a lowland Neotropical forest in Tinigua National Park, Colombia, in an effort to test for the existence of fruit dispersal syndromes. We found... |
| Tipo: Journal article |
Palavras-chave: Fruit syndromes; Fruit morphology; Neotropical forests; Convergent evolution; Frugivory. |
| Ano: 2004 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2004000200010 |
| |
|
|
| Gottsberger,Gerhard; Silberbauer-Gottsberger,Ilse. |
| ABSTRACT A comprehensive census of a hectare of cerrado s.s. in southeastern Brazil, a small-tree and scrub woodland physiognomy, allowed the evaluation of whether pollination and dispersal modes are correlated with the stratification of the vegetation and if so, in what way. Generalist pollination, and pollination by small bees, as well as ornithophily and anemophily were more frequent in the lower layers (ground and scrub), while species pollinated by large bees and beetles are more or less equally distributed among the ground, scrub and tree layers. The three nocturnal pollination modes, phalenophily, sphingophily, and chiropterophily indicated a preference for the upper layers (tree and scrub). Zoochory predominated in the tree layer, but autochory... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cerrado s.s. woodland; Dispersal systems; Neotropical forests; Pollination modes; Vertical stratification. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000300434 |
| |
|
|
|
