Distribution of non-native invasive species and soil properties in proximity to paved roads and unpaved roads in a quartzitic mountainous grassland of southeastern Brazil (rupestrian fields).
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Data
2010
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Resumo
One of the most important disturbances of
roads is the facilitation of the increase of non-native
invasive species into adjacent plant communities. The
rupestrian fields of Serra do Cipo´, a montane
grassland ecosystem in southeastern Brazil, are
recognized for their enormous richness of species
and endemism rates. The presence of non-native
invasive species in this ecosystem could threaten the
existence of the native flora and its associated
organisms. The aim of this study is to understand
how non-native invasive species and native species
are distributed along paved and unpaved roads, in a
montaneous grassland ecosystem such as the Brazilian
rupestrian fields. The two road surfaces provide
differing gradients from their edges with respect to
nutrients, soil chemical aspects and plant species
diversity. High content of calcium at the roadside in
the paved road resulted from the paving process, in
which limestone gravel is used in one of the several
paving phases. In these newly created habitats the
toxicity of aluminum is drastically reduced and
nutrient enriched, hence representing favorable sites
from where non-native invasive species are capable
to colonize and grow for undetermined period waiting
the chance to invade the adjacent pristine habitats.
Disturbances provoked by any natural or humancaused
event can provide the opportunity for the nonnative
invasive species to colonize new plant
communities.
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Palavras-chave
Biological invasion, Road ecology, Rupestrian fields, Serra do Cipo´
Citação
BARBOSA, N. P. de U. et al. Distribution of non-native invasive species and soil properties in proximity to paved roads and unpaved roads in a quartzitic mountainous grassland of southeastern Brazil (rupestrian fields). Biological Invasions, v. 12, p. 3745-3755, 2010. Disponível em: <https://link.springer.com/article/10.1007/s10530-010-9767-y>. Acesso em: 20 de jul. 2017.