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| Elias,Fernando; Teixeira,Nayara D. A; Marimon Junior,Ben Hur. |
| In the present study, we tested the hypothesis that: a) bromeliad Ananas ananassoides individuals and Tachigali vulgaris tree individual have an aggregate distribution pattern, and b) are spatially dissociated. To this effect, we quantified all A. ananassoides and T. vulgaris individuals (DBH of at least 30 cm) in large plot (1 ha) composed by 100 subplots measuring 10×10 m in a savanna woodland in the Bacaba Municipal Park, Nova Xavantina, Mato Grosso. The spatial pattern of A. ananassoides and T. vulgaris, and their spatial relationships, were measured using the aggregation and the association index, respectively. Both species had an aggregate distribution pattern and were spatially dissociated, which corroborates the hypotheses of this study. In this... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Interspecific competition; Spatial dynamics; Gaps; Environmental heterogeneity; Competição interespecífica; Dinâmica espacial; Clareiras; Heterogeneidade ambiental. |
| Ano: 2017 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2017000300010 |
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| Reis,Simone Matias; Lenza,Eddie; Marimon,Beatriz Schwantes; Gomes,Letícia; Forsthofer,Mônica; Morandi,Paulo Sérgio; Marimon Junior,Ben Hur; Feldpausch,Ted R.; Elias,Fernando. |
| ABSTRACTFire can change the species composition, diversity, and structure of savanna vegetation, thus altering growth and mortality rates. Such changes in the woody vegetation of burned savanna forest were evaluated over four years in comparison to unburned savanna forest. All woody plants with a diameter at breast height > 10 cm were measured in 100 permanent plots. Six months later, 38 of these plots were burned. Three and a half years later, all surviving individuals were re-sampled. Species richness, diversity, and the number of individuals did not change in the burned plots, although they had significantly higher (p < 0.05) increases in basal area and mortality rates (5.1% year-1) than the unburned plots (3.0% year-1).Tachigali vulgarishad the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Conservation; Land-use change; Mortality; Structural and floristic changes; Wildfire. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062015000300408 |
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