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handle: 10261/10150
[ES] Desde el nuevo paradigma de la ecología se considera al pastor y su ganado como un componente más de la dinámica natural del propio ecosistema y por ello la secuencia temporal y la intensidad del pastoreo condicionan los cambios entre las comunidades vegetales implicadas. Los aportes de fertilidad, el pisoteo y la propia herbivoría priorizan unas secuencias de cambio entre comunidades que resultan fáciles de detectar. En el piso subalpino del Parque Nacional de Ordesa y Monte Perdido, las comunidades vegetales más frecuentadas por el ganado son unas diez y, el majadeo, el ritmo diario de pastoreo o el abandono interrelacionan claramente a cinco de ellas. Se presenta un muestreo de la vegetación realizado durante el verano de 2004 y se estudia con detalle una zona cartografiada a escala 1:5000. Simultáneamente se inventarían los caminos y zonas más frecuentadas por el ganado y se correlacionan con las manchas de vegetación estudiadas con detalle en San Vicenda-Plana Canal-La Fueva. En base a los datos presentados se hipotetizan unas relaciones dinámicas entre las comunidades vegetales siguiendo las diferencias en aspectos topográficos y de uso ganadero.
[EN] The new concept of ecosystem considers the shepherd and his flock as a component else of the ecosystem natural dynamics. Because that the temporal sequence and the grazing intensity determine the different changes of the plant communities involved. The fertility supplies, trampling and herb ivory facilitate some change sequences between communities that are easy to detect. About ten plant communities of the sub alpine belt of the Ordesa and Monte Perdido National Park are the most frequently used by the animals; five of them are clearly interrelated with the resting point, the daily rhythm of grazing or the abandonment. A vegetation sampling was made during the summer of 2004, simultaneously the animal ways and the most frequented zones were controlled on the map(scale 1:5000) making several correlations with the vegetation spots. Some hypothesis are exposed explaining dynamic relationship between plan communities, topography and animal behaviour.
7 págs, 1 figura, 2 tablas.-- Comunicación presentada a la XLV Reunión Científica de la Sociedad Española para el Estudio de los Pastos: "Producciones agroganaderas: gestión eficiente y conservación del medio natural" (Gijón, 28 de mayo al 3 de junio de 2005).
Peer reviewed
Plant communities, Dynamic relationship, Comunidad vegetal, Montañas, Pirineos, Relaciones dinámicas
Plant communities, Dynamic relationship, Comunidad vegetal, Montañas, Pirineos, Relaciones dinámicas
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