Title:	Control of Carapa guianensis phenology and seed production at multiple scales: a five-year study exploring the influences of tree attributes, habitat heterogeneity and climate cues.
Authors:	KLIMAS, C. A. KAINER, K. A. WADT, L. H. de O. STAUDHAMMER, C. L. RIGAMONTE-AZEVEDO, V. CORREIA, M. F. LIMA, L. M. da S.
Affiliation:	CHRISTIE A. KLIMAS, UNIVERSITY OF FLÓRIDA; KAREN A. KAINER, UNIVERSITY OF FLÓRIDA; LUCIA HELENA DE OLIVEIRA WADT, CPAF-AC; CHRISTINA L. STAUDHAMMER, UNIVERSITY OF FLÓRIDA; VALÉRIA RIGAMONTE-AZEVEDO, UFAC; MANOEL FREIRE CORREIA, CPAF-AC; LÍLIAN MARIA DA SILVA LIMA, CNPq.
Date Issued:	2012
Citation:	Journal of Tropical Ecology, United Kingdom, v. 28, n. 1, p. 105-118, Jan. 2012.
Description:	During 5 y, we monitored reproductive activity and seed production of Carapa guianensis in two forest types to test the hypothesis that seed production is influenced by multiple factors across scales (regional climatic cues, local habitat heterogeneity and individual tree attributes). Variability in seed production was moderate at the population (CVp =1.25) and individual level (xCVi =1.24). Amixed modelwith a Poisson regression revealed that seed production was explained by variables at all scales. Total seed production was significantly higher in occasionally inundated forests. Diameter at breast height, dbh2, crown cross-sectional area, liana load, density, dry-season rainfall and mean maximum temperature were also significant in explaining seed production variation. Seed production increased with dbh until 40?50 cm, then decreased. Liana load demonstrated a negative relationship with seed production, but only in terra firme forests. Climatic cues (rainfall and temperature parameters) were central to setting overall patterns in reproductive activity and seemed to best explain why years with high seed production were consistent across the two forest types (habitats) examined. Dry-season rainfall was positively correlated with seed production.
Thesagro:	Fenologia Reprodução vegetal Andiroba Carapa guianensis Produção de sementes População de planta Análise estatística Fator de crescimento Clima Temperatura Floresta Erva daninha
NAL Thesaurus:	Phenology Plant breeding Seasonal development Seedling production Growth performance Statistical analysis Poisson distribution
Keywords:	Regressão de Poison Liana Análisis estadístico Desarrollo estacional Desempeño del crecimiento Distribución de Poisson Fitomejoramiento Producción de plántulas
DOI:	10.1017/S0266467411000630
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CPAF-AC)