By Stevenson, Pablo R.; Castellanos, María Clara; Agudelo T., Juliana
Read or Download Patterns of plant species richness within families and genera in lowland neotropical forests: Are similarities related to ecological factors or to chance? PDF
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Extra resources for Patterns of plant species richness within families and genera in lowland neotropical forests: Are similarities related to ecological factors or to chance?
08g. Leaves were obtained from El Verde Tabonuco forest and air dried. They were then cut into 3 x 3 cm squares and 5 grams of leaf squares were added to each microcosm. The three plant species were chosen because of their frequent occurrence in the Tabonuco forest and their leaves having a range of lignin to nitrogen ratios, with similar percents of nitrogen and varying lignin amounts (Table 1). 5 (Zalamea & González, unpublished data). 40 Tropical Forests Fig. 3. Three leaf species with varying lignin to nitrogen (L/N) ratios were used in the experiment, A) Dacryodes excelsa, B) Manilkara bidentata, and C) Rourea surinamensis.
In addition, when microcosms were collected all of the soil was removed, pH measured (with a 1:1 KCl to soil ratio) and inorganic nitrogen content (in the form of NO3- and NH4+) extracted with KCl and measured with a Rapid Flow Analyzer RFA-305 (Alpkem Corporation, Clackamas, Oregon). Soil microbial biomass C was estimated by the substrate induced respiration (SIR) method (Lin & Brookes, 1999) calibrated for the study area (Zalamea & González, 2007), using an ER-10 Columbus Instruments respirometer, and calculated from the CO2 evolved (Anderson & Domsch, 1978).
M. (1973). Accumulation and Decay of Litter and Net Production of Forest in Tropical West Africa. Oikos, Vol. 24, No. 3, pp. 430-435. , Andre, F. & Ponette, Q. (2006). Modeling leaf dispersal in mixed hardwood forests using a ballistic approach. Ecology, Vol. 87, No. 9, pp. 2306-2318. , Brofas, G. & Stamatelos, G. (2001). Litterfall, litter accumulation and litter decomposition rates in four forest ecosystems in northern Greece. Forest Ecology and Management, Vol. 144, No. 1-3, pp. 113-127. Kitayama, K.