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ABSTRACT:

Species composition of climbers in seasonal semideciduous forest fragments of Southeastern Brazil

journal article

Santos Karin; Kinoshita Luiza Sumiko; Rezende Andréia Alves

2009

Biota Neotropica

9

175-188

In this study we evaluated floristic composition patterns of communities of climbers within ten inventories \r\ncarried out in semideciduous forest fragments of southeastern Brazil. One of the inventories is original being \r\ncarried out for the present study in Ribeirão Cachoeira forest Campinas São Paulo State Southeastern Brazil. This inventory was then pooled together to other nine climbers’ inventories made in other forests of Southeastern Brazil to form a data base which was examined regarding species richness similarity species distribution and climbing methods. The total number of species obtained was 355 belonging to 145 genera and 43 families. The ten most diverse families Bignoniaceae (45 species) Fabaceae (42) Malpighiaceae (36) Asteraceae (31) Apocynaceae \r\n(29) Sapindaceae (28) Convolvulaceae (21) Cucurbitaceae (14) Passifloraceae (10) and Euphorbiaceae (8) contributed to 74.4% of the total number of species recorded. The commonest climbing method in the studied sites was main stem or branch twining accounting for 178 species or 50.1% of the total the second commonest was tendril climbing (121 species 34.1%) and the least scrambling (56 species 15.8%). We found a high percentage of exclusive species i.e. those occurring in only one forest site which accounted for 49.3% of the total recorded. The mean similarity among forest sites (30%) may be considered low. The climbing species contribution to the total wood plant richness recorded on the forests sites was very high in some of the sites (up to 52.5%). These results indicated the importance of climber communities to plant diversity for semideciduous forests in Southeastern Brazil enhancing the regional diversity and the conservation value of these forest remnants.

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Support

The Liana Ecology Project is supported by Marquette University and funded in part by the National Science Foundation.