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| Silva,Igor Aurélio; Cianciaruso,Marcus Vinicius; Batalha,Marco Antônio. |
| We examined the species abundance distribution (SAD) of plant communities in: (1) a wet grassland, waterlogged throughout most of the year; (2) a seasonal savanna, with an annual dry season; and (3) a hyperseasonal savanna, with alternating drought and waterlogging over the year. We searched for differences in the abundance distributions of all species, as well as of the common and rare species. We tested whether the SADs fitted the lognormal, log-series, power fraction, and random assortment models. We found that environmental constraints may reduce the evenness of plant communities and change the SADs in savannas. We observed a lognormal abundance distribution in the wet grassland and a random abundance distribution in the hyperseasonal cerrado. The SAD... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Assembly rules; Cerrado; Environmental filter; Evenness; Relative abundance distribution. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062010000200011 |
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| Melo Júnior, João Carlos Ferreira; Boeger, Maria Regina Torres; Isaias, Rosy Mary dos Santos; Arriola, Igor Abba; Lorenzi, Luciano; Mouga, Denise Monique Dubet da Silva; Vieira, Celso Voos. |
| The complexity of nutrient distribution patterns in soils is a determinant environmental component of the structure of plant communities. Numerous insect species that interact with plants are associated with these communities, and some of these interactions result in the formation of unusual structures called galls. In this study, we investigated the relationship of galls, soil fertility and plant communities in three vegetation types, herbaceous restinga (HR), shrub restinga (SR) and shrub-tree restinga (STR), in an area of restinga in southern Brazil. We identified 217 species belonging to 159 genera and 82 families. The plant diversity recorded in the STR was 42.8% higher than the diversity in the other vegetation types. Gall richness increased... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Environmental filter; Herbivory; Plant-insect interaction; Sandbank; Specialist herbivore. Ecologia. |
| Ano: 2019 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/39283 |
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