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Génesis y evolución de los paisajes ibéricos cuaternarios. Fenómenos de persistencia, cambio y extinción florística

Authors: Postigo-Mijarra, José María; Barrón, Eduardo;

Génesis y evolución de los paisajes ibéricos cuaternarios. Fenómenos de persistencia, cambio y extinción florística

Abstract

Los paisajes vegetales ibéricos del Gelasiense, Calabriense y Pleistoceno Medio estuvieron formados principalmente por bosques de coníferas y bosques mixtos con taxones mediterráneos en los que puede destacarse su notable y llamativa diversidad. La desaparición de estos bosques durante las fases más frías del Pleistoceno generó la apertura de la vegetación y la formación, en amplias regiones de Iberia, de áreas esteparias. Las principales extinciones se detectan aproximadamente en la transición al Pleistoceno Medio (e.j. Liquidambar o Parrotia). Sin embargo, es también destacable el hecho de que un importante conjunto de plantas termófilas/termohigrófilas sobrevivieron durante todo el Cuaternario (e.j. Juglans o Castanea). Probablemente, las denominadas áreas refugio desempeñaron un papel muy importante en la persistencia de sus poblaciones. Respecto al Tardiglacial y el Holoceno, podemos destacar que existen diferencias regionales muy importantes respecto al modelo de recuperación de la vegetación. Aunque el clima fue determinante, otros factores como la resiliencia de las poblaciones vegetales, la acción antrópica y otros aspectos de índole ecológica desempeñaron un significativo papel en la respuesta de la vegetación ante los cambios.

Departamento de Sistemas y Recursos Naturales, Universidad Politécnica de Madrid, España

Museo Geominero, Instituto Geológico y Minero de España, España

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Keywords

Extinción, extinción, Paisaje vegetal, paisaje vegetal, Pleistoceno, Cuaternario, paleobotánica, Paleobotánica, Áreas refugio

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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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impulse
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