Browsing by Autor "Leslie Cayola Pérez"

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<i>Bauhinia tuichiensis</i>(Fabaceae, Cercideae), una Especie Nueva del Bosque Seco de la Región Madidi, Bolivia
(Missouri Botanical Garden Press, 2012) Leslie Cayola Pérez; A C.
Bauhinia tuichiensis Cayola & A. Fuentes es una especie nueva de Fabaceae coleccionada en bosque seco durante las expediciones de campo del Proyecto Inventario Florístico de la Región Madidi en Bolivia. Además de B. cookii Rose, B. tuichiensis es la segunda de 15 especies dentro de la serie Decandrae Wunderlin, K. Larsen & S. S. Larsen (tribu Cercideae Bronn, sección Amaria (S. Mutis ex Caldas) Endl.) que presenta flores amarillas. Bauhinia tuichiensis se diferencia de B. cookii, la especie morfológicamente más emparentada, por tener inflorescencias densas (vs. laxas), con raquis corto de ca. 3 mm (vs. 10–15 mm); gineceo más grande 7–10 × 1.5 mm (vs. 4–5 × ca. 0.2 mm), ovario ovoide (vs. linear) y estigma capitado (vs. linear) más ancho 1.5–2 mm (vs. ca. 0.2 mm).Bauhinia tuichiensis Cayola & A. Fuentes is a new species of Fabaceae that was collected in dry forest during fieldwork for the Madidi Project in Bolivia. In addition to B. cookii Rose, B. tuichienis is the second species of 15 within the series Decandrae Wunderlin, K. Larsen & S. S. Larsen (tribu Cercideae Bronn, sección Amaria (S. Mutis ex Caldas) Endl.) that has yellow flowers. Bauhinia tuichiensis differs from B. cookii, a morphologically more closely related species, having dense inflorescences (vs. lax) with short rachis ca. 3 mm (vs. 10–15 mm), larger gynoecium 7–10 × 1.5 mm (vs. 4–5 × ca. 0.2 mm), ovoid ovary (vs. linear), and stigma capitate (vs. linear), wider at 1.5–2 mm (vs. ca. 0.2 mm).
Spatial patterns of above-ground structure, biomass and composition in a network of six Andean elevation transects
(Taylor & Francis, 2013) Cécile Girardin; William Farfán-Ríos; Karina García; Kenneth J. Feeley; Peter M. Jørgensen; Alejandro Araujo Murakami; Leslie Cayola Pérez; Renate Seidel; Narel Paniagua; A C.
Background: The Amazon to Andes transition zone provides large expanses of relatively pristine forest wilderness across environmental gradients. Such elevational gradients are an excellent natural laboratory for establishing long-term interactions between forest ecosystems and environmental parameters, which is valuable for understanding ecosystem responses to environmental change. Aims: This study presents data on elevational trends of forest structure (biomass, basal area, height, stem density), species richness, and composition from six elevational transects in the Andes. Methods: We analysed the spatial patterns of forest structure, above-ground biomass and composition from 76 permanent plots, ranging from lowland Amazonian rain forest to high-elevation cloud forests in Ecuador, Peru, and Bolivia. Results: Forest above-ground woody biomass stocks ranged from 247 Mg ha−1 (Peru, 210 m) to 86 Mg ha−1 (Peru, 3450 m), with significantly decreasing trends of tree height and biomass and an increasing trend of stem density with increasing elevation. We observed an increase in forest richness at three taxonomic levels at mid-elevation, followed by a decrease in richness within the cloud immersion zone. Conclusions: The transects show an increase in stem density, a decline in tree height and above-ground coarse wood biomass and a hump-shaped trend in species richness with increasing elevation. These results suggest that environmental change could lead to significant shifts in the properties of these ecosystems over time.