Publication: Estimando el potencial dispersivo de sámaras mediante modelos de regresión
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2017-06
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Abstract
La dispersión de semillas es una parte fundamental en el ciclo biológico de las plantas. Muchas especies producen frutos con características que facilitan su dispersión por un vector determinado. Por ejemplo, las especies anemócoras tinene frutos con alas o vilanos para aumentar su distancia de dispersión. Las sámaras son frutos típicos de la dispersión anemócora. Las variables morfológicas que se utilizan para estimar la capacidad de dispersión de las sámaras están basadas en proyecciones planas, lo que obvia su estructura tridimensional. Esto puede afectar en la comparación de especies que difieran en el grado de desarrollo tridimensional de sus sámaras. En este estudio se ha comparado la influencia de morfología sobre la capacidad dispersiva en sámaras de F. angustifolia y A. altissima que varían ampliamente en su estructura tridimensional. Se corrobora que las variables que predicen la capacidad dispersiva son diferentes.
Seeds dispersion is a fundamental stage in biological life cycle of plants. A lot of species produce fruits with characteristics that improve the dispersion by some vector. For example, anemochoric species have winged fruits or pappus to increase their dispersion range. Samaras are typical fruits of anemoochory. Morphological variables used to estimate dispersion capacity of samaras are based in plain proyections, which obviates the tridimensional structure. This can affect the comparison of species that differs on tridimensional structure development of their samaras. In this research we compare the influence of morphology on dispersion capacity of samaras of de F. angustifolia and A. altissima that vary widely on their tridimensional structure. We corroborate that variables which predict dispersive capacity are different.
Seeds dispersion is a fundamental stage in biological life cycle of plants. A lot of species produce fruits with characteristics that improve the dispersion by some vector. For example, anemochoric species have winged fruits or pappus to increase their dispersion range. Samaras are typical fruits of anemoochory. Morphological variables used to estimate dispersion capacity of samaras are based in plain proyections, which obviates the tridimensional structure. This can affect the comparison of species that differs on tridimensional structure development of their samaras. In this research we compare the influence of morphology on dispersion capacity of samaras of de F. angustifolia and A. altissima that vary widely on their tridimensional structure. We corroborate that variables which predict dispersive capacity are different.
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Grado Biología, mención Biología ambiental
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