BELTRÁN GALA , Juan Francisco

Se revisan los especímenes de anfibios y reptiles depositados en la colección científica de la Estación Biológica de Doñana (CSIC, Sevilla) procedentes de la región del Gran Bilbao (Vizcaya) durante la década de 1970-80. Se completan así los muestreos realizados en seis cuadrículas (UTM 10x10 km), y se proporcionan nuevos datos sobre 11 taxones...

De febrero de 1983 a mayo de 1985 se muestreo la población de Lince Ibérico (Lynx pardina) del Parque Nacional de Doñana y su entorno. Los objetivos del trabajo han sido determinar: La Biometría de la especie en el área el patrón de actividad circadiana y de utilización del espacio y compararlos con información similar de especies afines. Se...

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Zoology is a main subject of the Degree in Biology, with 12 ECTS. During the 2011-12 year, we essayed problem based learning (PBL) approach as an active methodology of education-learning. We presented the project to all the students. The participation was voluntary and without any academic reward, only for the pure desire to learn and get...

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We report the observation of an event of mortality of ribbed newts ( Pleu - rodeles waltl ) and Iberian spadefoot toads ( Pelobates cultripes ) due to predation by a pair of otters ( Lutra lutra ) in a temporary pond complex in southern Spain. The pecu- liar predation mode on ribbed newts, with extraction of soft organs through an inci - sion...

The developmental and biochemical mechanisms of colour change through chromatophore metachrosis in amphibian tadpoles are relatively well studied, but the environmental factors driving colour change remain unclear. A cryptic response to background colour in order to reduce predation is an intuitively valid explanation, however, other hypotheses...

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Comisión Asesora de Investigación Científica y Técnica de España (CAICYT)

La valutazione della consistenza di una popolazione di Volpe, mediante censimenti assoluti o relativi, è di difficile soluzione. Tra i diversi metodi di conteggio impiegati, nessuno si è rivelato ottimale e universale. Tuttavia nessuno è stato utilizzato per popolazioni di consistenza nota. Qui esaminiamo la validità di 14 metodi impiegati per...

Food habits of four species of foxes iVulpes vulp es, Canis culp aeus, Canis griseus and Urocyon cinereoargenteus) in mediterranean areas of Spain, France. Italy, Australia, Chile and United States of America were compared. The Iberian and Australian foxes appear as insectivores, while the Italian foxes eat fruit and insects and the French ones...

Analysed are 1537 scats of lynxes and 24 carcasses of deer killed by lynxes from 1973 to 1984 at the Doñana Biological Reserve. Lynx predation upon deer is low (0%-8% of the prey). and concentrates in Autumn-Winter, when rabbit supply and doe-fawn relationships decrease. Fallow deer are statistically chosen as prey more often than red deer, and...

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Ministerio de Ciencia e Innovación del Gobierno de España TEMPURA: CGL2005-00092/BOS y ACOURA: CGL2008-04814-C02

La presente comunicación presenta los resultados de un proyecto de innovación docente, desarrollado en el seno de la Facultad de Biología, con la colaboración de profesorado de la Facultad de Ciencias de la Educación, en el que han participado más de 200 alumnos y un total de 10 profesores (adscritos a los Departamentos de Fisiología y...

Data are presented on mortality rates of the Iberian lynx Felis pardina in Doñana National Park and the surrounding area in southwestern Spain, collected from 1983 to 1989. Data from radio-tagged lynxes and records of lynx mortality were used to assess causes of death. Annual mortality rate, estimated by using the Heisey and Fuller methodology,...

The Iberian hare Lepus granatensis is a common and abundant species throughout the Iberian Peninsula; however, studies documenting its ecology are scarce. Between August 1996 and September 1997, after a long drought, we studied the effects of a widespread flood on the Iberian hare ecology in ecotone pastures of Doñana National Park. Hares were...

Cyber-physical systems (CPS) constitute a promising paradigm that could fit various applications. Monitoring based on the Internet of Things (IoT) has become a research area with new challenges in which to extract valuable information. This paper proposes a deep learning classification sound system for execution over CPS. This system is based...

Communities usually possess a multitude of interconnected trophic interactions within food webs. Their regulation generally depends on a balance between bottom-up and top-down effects. However, if sensitivity to temperature varies among species, rising temperatures may change trophic interactions via direct and indirect effects. We examined the...