The consumption of fleshy fruits by vertebrates is an important phenomenon in the tropics, especially birds and mammals that have high proportions of frugivorous species. We recorded 90 interactions involving 22 species of plants and 33 species of birds. Asymmetrical pattern was found in the interactions in which few species are responsible for most interactions. The main birds observed consuming fruits are small size and omnivorous. Frugivorous interactions with large sized birds, such as the Cracidae and Ramphastidae families, considered as potential seed dispersers, were not recorded. The study demonstrated the importance of the plant species.
|Published (Last):||19 January 2014|
|PDF File Size:||19.85 Mb|
|ePub File Size:||16.39 Mb|
|Price:||Free* [*Free Regsitration Required]|
We found that the PFSP has a bird richness similar to large fragments of the region, although the most sensitive species and more demanding in the resources exploitation are less abundant compared to generalist species and to the most conserved fragments of the surroundings.
In Chap. There was availability of attractive fruit throughout the year, with peak productivity between September and October, in line with the pre-reproductive period of birds and the arrival of migratory species.
Despite the prevalence of generalist birds that disperse mainly small seeds of plants from the early succession stages, we found the PFSP has a diversified frugivorous bird-plant interaction network compared to other forest fragments of the State, due to the variety of available environments, connection with other surroundings fragments and its medium size and rounded shape, softening the matrix impact.
III, we evaluated the potential of bird perches in increasing the seed rain in an abandoned pasture within the PFSP limits. Therefore, we installed seed traps under natural perches living trees and artificial, noting the number of deposited seeds increased proportionally to the amount of landing perches structures.
Natural perches also provided other resources for birds, such as fruits, insects and shelter, making them more attractive. We conclude that natural perches and artificial perches with more elaborate architecture showed greater efficiency in attracting seed-disperser birds and increasing the seed deposition, being the most recommended for this area recovery and for ecological restoration projects.
Biodiversity Heritage Library
Frugivory by birds in four species of Cactaceae in the Caatinga, a dry forest in Brazil. Iolanda M. Jonathan R. Flor M. Rowley subsp.