Browsing by Author "Miranda, Eva"

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    Short communication. Soil development mediated by traditional practices shape the stand structure of Spanish juniper woodland
    (Ministerio de Educacion y Ciencia, 2014) Venturas, Martín; Fuentes Utrilla, Pablo; López, Rosana; Perea, Ramón; Fernández, Victoria; Gascó, Antonio; Guzmán, Paula; Li, Meng; Rodríguez Calcerrada, Jesús; Miranda, Eva; Domínguez, Jorge; González Gordaliza, Guillermo; Zafra, Elena; Fajardo Alcántara, Miriam; Martín, Juan; Ennos, Richard; Nanos, Nikos; Lucena, Juan; Iglesias, Salustiano; Collada, Carmen; Gil, Luis
    Aim of study: Assessing the effect of soil development on the stand structure of a Spanish juniper forest traditionally shaped by livestock browsing and wood extraction. Area of study: Berlanga de Duero (Soria,Castilla y León),Spain. Material and methods: A stand inventory served to record stand structure. Tree age,height,DBH,basal area,and overbark volume were determined in each plot. Results were pooled considering two well-differentiated degrees of soil evolution. One-way ANOVAs (and Tukey's test) and regressions between growth parameters were performed to assess significant differences between growth performances on both types of soils. Research highlights: Deeper soils yielded significant higher plant density and stand stock figures than stony shallower profiles despite the intense past livestock activity in the area; and single tree-size was also significantly greater. Non-significant differences were found for merchantable junipers age (?120-160 years). Wood extraction and livestock browsing should be limited on shallower soils to allow soil and forest evolution; as well as to preserve the genetic pool better adapted to hardest growing conditions.
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    Publication
    Ulmus laevis in the iberian peninsula: A review of its ecology and conservation
    (SISEF - Italian Society of Silviculture and Forest Ecology, 2014) Venturas, Martín; Fuentes Utrilla, Pablo; López, Rosana; Perea, Ramón; Fernández, Victoria; Gascó, Antonio; Guzmán, Paula; Li, Meng; Rodríguez Calcerrada, Jesús; Miranda, Eva; Domínguez, Jorge; González Gordaliza, Guillermo; Zafra, Elena; Fajardo Alcántara, Miriam; Martín, Juan; Ennos, Richard; Nanos, Nikos; Lucena, Juan; Iglesias, Salustiano; Collada, Carmen; Gil, Luis; https://ror.org/02jjdwm75
    European white elm (Ulmus laevis Pallas) populations are scarce,small and fragmented in the Iberian Peninsula. Due to these characteristics the indigenous status of the species in the region has been questioned,whilst the species’ role in Iberian riparian forest ecology has been neglected. Herein we review past studies regarding this species’ distribution and ecology in the Iberian Peninsula,with special emphasis on the establishment of conservation priorities. We first present a collection of palaeogeographic,historic and genetic data suggesting that the Iberian Peninsula was a glacial refuge for U. laevis. Secondly,we analyse U. laevis distribution in relation to soil physicochemical properties and water availability in Spain. Following this,we focus on the reproductive biology of the species,and investigate the effect of masting and empty seed production on predation and regeneration establishment. Finally,based on this knowledge,we propose conservation policies for U. Laevis in the Iberian Peninsula. ©Martin Venturas (martin.venturas@upm.es)