BUSCADOR RECOLECTA

Cache pilferage by competing conspecifics is a very common hoarding behavior used by animals. Members of rodent communities use a wide variety of strategies to minimize this pilferage. In this work, we investigated one of these strategies. We observed that certain rodent species partially consume acorns, leaving the embryo intact. We investigated whether this strategy was used by Mus spretus Lataste 1883 (Algerian mouse) to avoid cache pilferage by competing conspecifics. Partially consumed acorn remains left in underground stores could be viewed as remains by competing conspecifics, and would therefore be rejected, preventing its consumption and pilferage. To test our hypothesis, we designed three experiments on the preference for intact acorns, acorns that had been partially consumed by the rodent itself or the remains from other competing conspecific rodents. The study verified whether the remains of partially consumed acorns were rejected. We verified that these remains are more highly valued than intact acorns or even the remains of the rodent’s own previous consumption, thus rejecting our hypothesis. Remains are not used as a strategy to prevent theft. However, preference for the remains of other rodents’ acorns could form part of an anti-theft strategy. If the acorn remains are used as a decoy to attract the attention of thieves to prevent the consumption of intact acorns, the intact acorns would be better preserved in the stores for longer periods of time. The remains were consumed before the intact acorns. We verified that rodents prefer the remains of other rodents’ acorns to their own, and even prefer them to intact acorns. This behavior may be part of a strategy to reduce other rodents’ reserves to avoid future competition by conspecifics.

Correlaciones de Pearson entre variables por países. Ligas europeas de fútbol. Temporada 2019-2020., Departamento de comunicación y publicidad, Correlaciones de Pearson entre variables por países. Ligas europeas de fútbol. Temporada 2019-2020.

Correlaciones, árbitros y componentes del juego. Ligas europeas de fútbol. 2019-2020, Departamento de comunicación y publicidad, Correlaciones, árbitros y componentes del juego. Ligas europeas de fútbol. 2019-2020

The relationship between scatter-hoarding rodents and oak species has been considered on a scale from antagonism to mutualism. Depending on the costs and benefits, the outcome of the relationship can be found at one extreme or the other. Costs have included destruction of acorns that occurs during predation, but not all acorns attacked lose their embryos. As representatives of the mutualistic end, we present two species with this behavior (Mus spretus and Apodemus sylvaticus). Representing the antagonistic extreme, we present a predatory species that destroys the embryo (Microtus arvalis). The objective of this study is to test the preferences of both rodent groups for acorns. The results showed that there is one acorn species (Quercus ilex) that is preferred by the three rodent species. This acorn species has high concentrations of nutrients, low concentrations of tannins and thin shell. These characteristics attract the attention of rodents that could carry these acorns. There are two other acorn species (Quercus suber and Quercus rubra) that are consumed with little intensity for having low concentrations of nutrients, high concentration of tannins and thick shell. These characteristics escaping predators although transportation is not guaranteed. These acorns would germinate and emerge under the trees that have produced them and increase intraspecific competition. Coincidence preferences shown by the three rodent species poses a risk for the oak species, since the recent arrival of the predator (antagonist) species in the study area could paralyze the dispersal process carried out by the other two mutualistic species through predation., Departamento de Ciencias Agroforestales

La llegada de los misioneros dominicos a América en septiembre de 1510 marcó un nuevo estilo en la evangelización de los pueblos indígenas, con clara repercusión en el devenir religioso y también político de los administrados., E-LECON

Los roedores tratan de diferente manera las bellotas que consumen. Se trata de conocer cómo procesa M. spretus las bellotas, Ciencia Agroforestales, iuFOR

La obra reúne los expedientes administrativos de Antonio Machado conservados en el Archivo General de la Administración del Estado Español (AGA). Se trata de treinta y siete documentos con un total de sesenta y siete páginas que abarcan desde junio o julio de 1900 hasta el 7 de julio de 1941 y se refieren básicamente a su trayectoria académica en organismos públicos y obtención de títulos, su participación en los concursos de Cátedras y su separación definitiva del servicio. La obra va precedida de un prólogo de Manuel Núñez Encabo (presidente de la Fundación Española Antonio Machado), Evelia Vega González (Jefa del Departamento de Referencias del Archivo General de la Administración -AGA) y Antonio Bueno García (Director de la Exposición-Universidad de Valladolid)., Filología Francesa y Alemana, NACIMIENTO, ESTUDIOS, OPOSICIÓN A LA CÁTEDRA DE SORIA, OTRAS OPOSICIONES A CÁTEDRA, DEPURACIÓN Y SEPARACIÓN DEL SERVICIO, Ayuntamiento de Soria

Tras su llegada al continente asiático, los dominicos se esforzaron en montar la imprenta para desarrollar adecuadamente su labor misionera e intelectual y también para mediar entre las dos culturas. El trabajo de traducción permitió tanto el acercamiento de las obras filosóficas orientales a la cultura española como europea. así como obras doctrinales cristianas a lenguas asiáticas. La tarea lexicográfica emprendida (la elaboración de gramáticas y diccionarios de las lenguas asiáticas esencialmente) fue indiscutiblemente aprovechada por la instrucción de los nuevos misioneros., Departamento de Filología Francesa y Alemana, Ministerio de Economía, Industria y Competitividad (Gobierno de España), Ref.: FFI2014-59140-P «Catalogación y estudio de las traducciones de los dominicos españoles e iberoamericanos».

Después de la experiencia americana y de varios intentos fallidos de lograr un asentamiento permanente en el este de Asia, los dominicos españoles lograron ingresar desde Filipinas (1565) en el este de Asia: China, Japón. Vietnam, Taiwán y Corea y evangelizar estos territorios con la inestimable ayuda del aprendizaje del idioma y el uso de la traducción. Este artículo ofrece un panorama de los hitos más importantes desde el punto de vista de los textos Sarv la Luz y otros que permanecieron inéditos., Departamento de Filología Francesa y Alemana, Ministerio de Economía, Industria y Competitividad (Gobierno de España), Ref.: FFI2014-59140-P «Catalogación y estudio de las traducciones de los dominicos españoles e iberoamericanos».

The relationship between rodents and oak species has been interpreted, based on their results, as a range of relationships varying from the extreme in which rodents behave as predators to the extreme in which the rodent collaborates by participating in the dissemination of their acorns. Here we have studied the relationships between three rodent species and six oak species. We obtained results corresponding to the two extremes. The most abundant oak species in the study area have high concentrations of nutrients, low concentrations of tannins and thin shells. The higher concentration of nutrients favors the ability of acorns to settle. This may be one of the multiple causes of their abundance in the area. This high availability of nutrients attracts the attention of the three rodent species to incorporate them into their diet. Two of these rodent species are also hoarders so they transport acorns to protected places where they can germinate and emerge. This transporting activity would be sufficient to call this relationship with the oaks as collaborative, but they also show a behavior that partially consumes the acorns, initiating them at the basal end and preserving the embryo, which brings this relationship even closer to the mutualistic end of collaboration. With this behavior, the two rodent species participate in the dissemination of acorns improving their efficiency, which could be another of the multiple causes of the abundance of these oak species in the area. The predator rodent species in this study, recently arrived in the study area, may decrease the dispersal efficiency of the oaks because it interferes with the relationship of the dispersers by destroying the acorns. The two oak species that exhibit predation avoidance characteristics are not consumed, but neither are they transported or disseminated.