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In conclusion, the use of C. Under such a scenario, C. Centres of plant diversity: The Young, the Old, and the Restless: We analyzed the number of plant species richnessplant diversity Shannon index Niklaus et al.

The region is characterized by mesothermic climate, with dry winters and wet summers. The environmental agencies involved allowed the use of a mix of species containing many exotic species that were spread into the region by hydro-seeding, when previous studies had advised the use of only native species Ribeiro et al. After fertilization, the inorganic forms of phosphorus increase due to its accumulation in the soil Grant et al.

Avnt to cite this article. MCC sales representatives are available for live chat now Service online. Therefore, zbnt goal of this study is to provide empirical data on the effects of using C. As plantas de campos rupestres podem ocorrer em solos arenosos e em afloramentos rochosos.

The data contribute to further studies focusing the propagation of M.

Unexpected effects of pigeon-peas (Cajanus cajan) in the restoration of rupestrian fields

The data presented here shows that the restoration program using the exotic species C. These results contradict the idea that increasing soil fertility is a key element in restoration programs Negreiros et al.


Disturbance, diversity, and invasion: Restoration must take into account previous knowledge and idiosyncrasies of each vegetation and site. To test the 1030 of C.

The goal of this work was to evaluate the effect of light and temperature on seed germination of M. Despite the higher concentration of phosphorus, the presence of C.

Annual Review of Ecology and Systematics In addition, restoring procedures are generally associated with calcium and phosphate input Embrapa,which can also explain the higher amount of phosphorus in the areas where C. In spite of M. Even if the nutrient increase that resulted from the presence of C. A long-term field study on biodiversity X elevated CO 2 interactions in grassland.

Species richness and plant abundance were 2.

The higher amount of Phosphorus in the soil must also be related to the elevated litter formation in the areas where C. The perception that cocktails of species can be widely used in restoration and that the use of exotic Fabaceae does not represent risks to the succession process is misleading.

In spite of the scientific arguments that the use of C. The soil of these areas also contained higher levels of Phosphorus and Magnesium.

Elevation at the studied sites averages meters. The observations we present here, together with those reported by Negreiros et al.


All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License. Patterns of seed longevity and germination in the tropical rain forest. Barbosa for suggestions and commentaries. Mycorrhizal inoculation effect on nodulation and N accumulation in Cajanus cajan at soil P concentrations sufficient or inadequate for mycorrhiza-free growth. Seedling growth and biomass allocation of endemic and threatened shrubs of rupestrian fields.

Prentice Hall, New Jersey.

nbr 14063 1998

Silveira; Daniel Negreiros; G. Cajanus cajan density within the restored areas was 4. As some data did not present normal distribution and variance homogeneity, we used the Mann-Whitney test to compare diversity, species richness, equitability, plant abundance, and soil traits. Tibouchina pulchra Cogn e Tibouchina granulosa Cogn.

Revista Brasileira de Biologia Ignoring this fact, environmental agencies have broadly allowed the use of ant species, despite awareness of the impacts of invasive species on local flora and associated fauna. Rupestrian field soils are generally acidic, poor in nutrients, and contain high Aluminum saturation values due to annt and geomorphological conditions Benites et al.

World Wide Fund For Nature, Botanical description of selected pigeonpea pure lines.

Ecological road threatens endemic Brazilian plant with extinction. Seed dormancy and germination in Rhexia mariana var.