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| Titre : |
Crescimento e longevidade foliar em jovens de três espécies de cecropia (cecropiaceae) do sudeste do Brasil (capitulo 3)
|
| Auteur(s) : | T.C.S. Spocito |
| Type de document : | Tiré à part |
| Sujets : | Brésil ; Cecropia |
| Résumé : |
Cecropia glaziovii (Snethl.), C pachystachya (Trécul) and C. hololeuca (Miq.) are common pioner species in Southeastern Brazil forests. Only C. hololeuca is non myrmecophyte (no ant-association). The goal of this study was measure height and diameter growth, and leaf demography of the three species, in sapling trees (0.75 - 3.50 m height), to verify possible differences between myrmecophytic and non myrmecophytic species. The study was conducted in reserva biologica da Mata do Jambreiro, Nova Lima, MG, Brazil. In April 1996, 14-16 plants of each species were marked. Internode production and the emergence and death of new leaves were recorded monthly. Height growth was measured after one year sampling. Myrmecophytic species produced more internodes than non-myrmecophyte. Macimum height[...] Cecropia glaziovii (Snethl.), C pachystachya (Trécul) and C. hololeuca (Miq.) are common pioner species in Southeastern Brazil forests. Only C. hololeuca is non myrmecophyte (no ant-association). The goal of this study was measure height and diameter growth, and leaf demography of the three species, in sapling trees (0.75 - 3.50 m height), to verify possible differences between myrmecophytic and non myrmecophytic species. The study was conducted in reserva biologica da Mata do Jambreiro, Nova Lima, MG, Brazil. In April 1996, 14-16 plants of each species were marked. Internode production and the emergence and death of new leaves were recorded monthly. Height growth was measured after one year sampling. Myrmecophytic species produced more internodes than non-myrmecophyte. Macimum height increment values were higher in myrmecophytes than in C. hololeuca, but non significative differences were found among the species medians. Internodes yr'-1 and height increment were positive correled with monthly rainfall in all species. Leaf emregence was higher in myrmecophytes than in C. hololeuca. Leaf death was highter for C. glaziovii leaves than for the other two species. Leaves of C. hololeuca and C. pachystachya (7 meses) lived longer than C. glaziovii leaves (4 meses). |
| Editeur(s) : | Campinas : UNICAMP |
| Date de publication : | 1999 |
| Format : | pp. 87-121., nb graph., nb tabl., 3 réf., 3 annexes |
| Note(s) : |
Extrait de : "Tamanho forma alometria e crescimento em algumas espècies de cecropia (cecropiaceae) do Brasil. |
| Langue(s) : | Portugais |
| Lien vers la notice : | https://infodoc.agroparistech.fr/index.php?lvl=notice_display&id=151537 |
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| Localisation | Emplacement | Pôle | Section | Cote | Support | Disponibilité |
|---|---|---|---|---|---|---|
| Kourou | ARCHIVES | AgroParisTech-Kourou | UMR.1093 | Papier | Empruntable Disponible |