Allelopathic potential of invasive Ulmus pumila on understory plant species

In Petriplate bioassay and Pot culture, we studied the allelopathic potential of leaf litter of Siberian elm (Ulmus pumila L.) invasive tree species on the germination and growth of three herbaceous plant native species (Dactylis glomerata L., Trifolium repens L. and Chenopodium album L.) commonly found in riparian understory communities. Two assays were done with leaf litter of U. pumila from riverine ecosystems (i). the effects of aqueous litter extracts in Petri dish assays and (ii). the effect of litter residues in pot experiments. The leaf litter extracts inhibited the radicle growth of D. glomerata and T. repens but did not effect the germination. However in pots, leaf litter inhibited the germination speed of C. album and growth of D. glomerata and T. repens. Our results showed the allelopathic potential of U. pumila litter, which reduced the growth of understory species (T. repens and D. glomerata). In the litter of U. pumila many phenolic compounds (hidroxibenzoic, ferulic, coumaric, protocatechuic, vanillic and rosmarinic acids, and quercetin) were detected

Territorial dynamics and boundary effects in a protected area of the Central Iberian Peninsula

We analysed the main changes in land use over a 21 year period within the perimeter of a Protected Natural Area (PNA) and outside this perimeter. The area is characterised by its Mediterranean mid-mountain landscape and its piedmont, which extends almost as far as the city of Madrid. We employed cartography of land use and plant formation from 1980 and 2001. We identified land uses and their changes in this time period in order to determine the principal territorial dynamics (scrub encroachment, urban development, forest encroachment, new pastures and new crops). Subsequently, we performed a comparative analysis between the changes inside and those outside the protected area. The results show that there is a boundary effect between the protected area and the surrounding zone, which is more notable in the areas where urban development has intensified. This kind of research serves to establish whether or not a PNA contributes to protecting and conserving natural resources as compared to what occurs in the unprotected surrounding area, which tends to be subjected to more aggressive dynamics

Distribution area of Juniperus oxycedrus L. in Central Spain (Madrid)

The Iberian populations of Juniperus oxycedrus L. subsp. oxycedrus have been studied by several authors who consider their condition as unfavourable. In the Madrid Region, current status, dynamic and distribution area are unknown even when their populations, specifically those who form arborescent shrubs, are included in the type 5210 (Habitat Directive 92/43/EEC). These formations are developed in austere Mediterranean mountain typical of agro ecosystems of high value that have interesting dynamics of recolonization, especially in those areas where agricultural and livestock systems have suffered a setback. This study aims to understand the distribution of juniper in the region of Madrid as the first step to identify and assess the dynamic changes in recent decades. To update the cartography of this species the available information has been checked and completed with photointerpretation and fieldwork. Based on this cartography and the information relating to the physical and biotic variables four types of juniper were differentiated by multivariate methods. On the other hand, two types of dynamics were recognized and it was studied in depth the genesis of changes produced in these forests in the last decades

Enseñar Ecología hoy: abandonando la tarima para jugar con el mundo real

Depto. de Biodiversidad, Ecología y EvoluciónFac. de Ciencias BiológicasFALSEsubmitte

Estudio de comunidades de matorral mediterráneo I

Conjunto de guiones de prácticas de Ecología, correspondientes al bloque temático sobre el estudio de comunidades, y material complementario (estadillo y plantilla para la matriz de datos)

Guía Rápida de SPSS v.25 (Prácticas de Ecología)

Guía rápida de SPSS v.25 para usar en las Prácticas de Ecología (Grado en Biología, 3er curso

Landscape dynamics in a protected natural area: Parque Regional de la Cuenca Alta del Manzanares (upper Manzanares river basin regional park), Madrid, Spain

ABSTRACT In this paper we study the dynamics of changes in use in the Parque Regional de la Cuenca Alta del Manzanares (upper Manzanares river basin regional park), from 1985 to the present. We also make a socio-economic characterisation of the 17 municipalities included in this protected natural area (PNA) with the use of multivariate analyses. Five classes of territorial dynamics were recognised (matorralización -tendency towards shrubland -, forest encroachment, housing development, abandonment/new pastures and new crops) and a socio-economic typology of the municipalities was established. Lastly, we studied the relationship between the socio-economic characteristics and the territorial dynamics using a χ 2 association analysis

Distribution area of Juniperus oxycedrus L. in Central Spain (Madrid)

The Iberian populations of Juniperus oxycedrus L. subsp. oxycedrus have been studied by several authors who consider their condition as unfavourable. In the Madrid Region, current status, dynamic and distribution area are unknown even when their populations, specifically those who form arborescent shrubs, are included in the type 5210 (Habitat Directive 92/ 43/ EEC). These formations are developed in austere Mediterranean mountain typical of agro ecosystems of high value that have interesting dynamics of recolonization, especially in those areas where agricultural and livestock systems have suffered a setback. This study aims to understand the distribution of juniper in the region of Madrid as the first step to identify and assess the dynamic changes in recent decades. To update the cartography of this species the available information has been checked and completed with photointerpretation and fieldwork. Based on this cartography and the information relating to the physical and biotic variables four types of juniper were differentiated by multivariate methods. On the other hand, two types of dynamics were recognized and it was studied in depth the genesis of changes produced in these forests in the last decades.Les populations ibériques de Juniperus oxycedrus L. subsp. oxycedrus L. ont été étudiées par plusieurs auteurs qui considèrent leur état de conservation comme mauvais. Dans la région de Madrid, la situation actuelle, la dynamique et l’aire de répartition de ces junipéraies sont mal connues, même si celles qui sont arborescentes sont incluses dans le type 5210 (directive Habitat 92/ 43/ CEE). Ces formations sont développées dans des ambiances montagnardes méditerranéennes continentales, où se développent des agro-écosystèmes de grande valeur présentant une dynamique intéressante de recolonisation, liée à la déprise agricole. Cette étude vise à mieux comprendre la répartition du Cade dans la région de Madrid, première étape à la compréhension et à l’évaluation des changements dynamiques intervenus dans les dernières décennies. Pour mettre à jour la cartographie de cette espèce, l’information disponible a été vérifiée et complétée par photo-interprétation et sur le terrain. Sur la base de cette cartographie et les informations relatives aux variables physiques et biotiques, quatre types de junipéraies ont été différenciés par des méthodes multivariées. D’autre part, deux types de dynamiques ont été reconnus et il a été étudié en profondeur la genèse de changements qui se produisent dans ces forêts dans les dernières décennies.Allende Álvarez Fernando, Las Heras Puñal Paloma de, Fernández-Sañudo Paloma, López Estébanez Nieves, Roldán Martín María José. Distribution area of Juniperus oxycedrus L. in Central Spain (Madrid). In: Ecologia mediterranea, tome 39 n°1, 2013. Actes du IVe Colloque international sur le Genévrier thurifère. 5-8 octobre 2011 Mont-Dauphin et Saint-Crépin (Hautes-Alpes, France) pp. 181-190