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During the postwar period, these countries experienced dramatic demographic change, although details. Seedling growth and biomass allocation of endemic and threatened shrubs of rupestrian fields. How to cite this article. Plenum Press, New York.

Mycorrhizal inoculation effect on nodulation and N accumulation in Cajanus cajan 1303 soil P concentrations sufficient or inadequate for mycorrhiza-free growth. We analyzed the number of plant species richnessplant diversity Shannon index Niklaus et al. The response of tropical tree seedlings to nutrient supply: Contact MCC Have questions?

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

Each treatment restored and non-restored had four sampling areas, each with three m 2 plots. Cajanus cajan density within the restored areas was 4. 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.

The data contribute to further studies focusing the propagation of M. Aparentemente floresce e frutifica ao longo de todo o ano, produzindo grande quantidade de sementes pequenas Martins, com. I,II ; Castro, S.

All monitored areas were located from five to fifty meters from the road. NBR nbr Secondary succession and the pattern of plant dominance along experimental nitrogen gradients. The level of Phosphorus found in the restored areas was higher then the level reported by Marques and Negreiros et al.


Services on Demand Journal. Fertilization can enhance the growth rate of plants during restoration processes, but can also promote competitive exclusion of some species Lawrence, Seed size and shade-tolerance: The disturbance of a system through species introduction, biomass input, or manuring can lead to higher levels of Phosphorus mineralization due to an increase in the microbial activity Gatiboni et al.

Ecological road threatens endemic Brazilian plant with extinction. Similarity was small and varied from 0 to 0. The introduction of exotic species is one of the main causes of the current mass extinction of species Mittermeier et 13300. Although the amount of organic matter annt not analyzed in the present study, the amount of nitrogen between the two treatments did not differ statistically. The highest diversity of galling insects: Restored and non-restored areas were located at a minimum of m to a maximum of 3.

Tibouchina pulchra Cogn e Tibouchina granulosa Cogn. Revista Brasileira de Biologia 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. In conclusion, the use of C. MCC sales representatives are available for live chat now Service online. Distribution of non-native invasive species and soil properties in proximity to paved roads and unpaved roads 13300 a quartzitic mountainous grassland of southeastern Brazil rupestrian fields.

Elevation at the studied sites averages meters.


nbr 14063 1998

Likewise, diversity was 1. The areas where C. All plant individuals except grasses within the plots were counted and identified. Acta Botanica Brasilica Ant by planting the legume Cajanus cajan was implemented in some of these areas. On the other hand, none of the other soil components analyzed differed statistically between the two treatments Table 2. 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 nnbr species Ribeiro et al.

Canadian Journal of Botany In spite of M. The phenomenon was explained by the paving process, which uses a substance rich in CaCO 3 that would promote an increase in pH along the road side.

The older individuals of C. Centres of plant diversity: In addition, restoring procedures are generally associated with calcium and phosphate input Ahnt,which can also explain the higher amount of phosphorus in the areas where C.

The quantity of magnesium found in this study was lower than that reported by Marques et al. Light hbr temperature influence on seed germination of Marcetia taxifolia A.

In addition, we compared the area similarity comparing plots through Jaccard index Ricklefs, within both treatments.