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- Title
Soil factors effects on life history attributes of Leiothrix spiralis and Leiothrix vivipara (Eriocaulaceae) on rupestrian grasslands in Southeastern Brazil.
- Authors
Coelho, F. F.; Martins, R. P.; Figueira, J. E. C.; Demetrio, G. R.
- Abstract
In this study, we hypothesized that the life history traits of Leiothrix spiralis and L. vivipara would be linked to soil factors of the rupestrian grasslands and that rosette size would be influenced by soil moisture. Soil analyses were performed from five populations of L. spiralis and four populations of L. vivipara. In each area, three replicates were employed in 19 areas of occurrence of Leiothrix species, and we quantified the life history attributes. The microhabitats of these species show low favorability regarding to soil factors. During the dry season, their rosettes decreased in diameter due the loss of its most outlying leaves. The absence of seedlings indicated the low fecundity of both species. However, both species showed rapid population growth by pseudovivipary. Both L. spiralis and L. vivipara exhibit a kind of parental care that was quantified by the presence of connections between parental-rosettes and ramets. The findings of the present study show that the life history traits are linked to soil factors.
- Subjects
BRAZIL; ERIOCAULACEAE; GRASSLANDS; SOIL moisture; SOIL testing; PLANT populations
- Publication
Brazilian Journal of Biology, 2014, Vol 74, Issue 4, p828
- ISSN
1519-6984
- Publication type
Article
- DOI
10.1590/1519-6984.04513