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handle: 10261/24976 , 10045/6894
{ESP}La microheterogeneidad del medio se relaciona con frecuencia con la distribución de las especies. En este trabajo se estudia una transección de corto recorrido, tomando como base de diferenciación la profundidad del suelo. Se concluye que hay una acomodación del nicho de las especies de acuerdo con la misma, aunque también pueden influir otras causas, tales como: a) El alejamiento de los afloramientos rocosos. b) Pequeños cambios en la profundidad, cuando ésta es inferior a 20 cm. c) Los cambios rápidos de profundidad, que determinan desplazamientos de las especies. d) La existencia de zonas de transición, antes de que se alcance el pastizal típico.
{ENG}The microheterogeneity of the environment is frecuently related to species distribution. In this study a short distance transection is analysed using soil depth as a basis of differentiation. It is concluded that there exists a niche accomodation of species related to soil depth, althoug the same could also be influenced by other factors like: a) The distance from rock outcrops. b) Small changes in soil depth, when soil depth is below 20 cm. c) Rapid changes of soil depth that determine shifts of species. d) The existance of transition zones prior to the formation of a typical grassland.
Profundidad, Topografía, Microtransección, Vegetación, Suelos
Profundidad, Topografía, Microtransección, Vegetación, Suelos
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