3,176 research outputs found
Libro de actas del Apostolado de la Oración. Asociación erigida canónicamente por él Sr. Luna presbítero D. E. y Martínez en la Parroquia de la Concepción de Tepecoacuilco
No full textLibro de actas del Apostolado de la Oración. Asociación erigida canónicamente por él Sr. Luna presbítero D. E. y Martínez en la Parroquia de la Concepción de Tepecoacuilco, 193
Ecology of two sympatric cervids from Spain: confronting data from stomach contents and dental microwear texture
No full textInternational audienceThe red deer, Cervus elaphus is characterized by a plastic diet that varies depending on resource availability in its habitat (Gebert and Verheyden-Tixier, 2001). On the other hand, the fallow deer Dama dama is reported to predominantly eat grass – and acorns whenever available whether in cold and humid or warm and dry habitats (Jackson, 1977, Azorit et al., 2012). The Spanish locality Luegar Nuevo (Fig.1) is characterized by a dry summer which constitutes a constraint season for the two sympatric cervid populations (Azorit et al., 2012). In this study, we focus on diet to explore the ecological relationships between the two populations under these extreme conditions. Dental microwear texture analysis (Scott et al., 2006), the study of the microscopic wear caused by food during mastication, has proven to be very efficient in deciphering both inter- and intra-specific variations in diet (Merceron et al., 2010). Efforts are focused on the shearing facet of the lower second molars (Fig.1). The results are compared with the rumen content analysis based on the very same specimens (Azorit et al., 2012). We show that the red deer are highly grazer (high anisotropy, low complexity), while the fallow deer combine intermediate complexity and lower anisotropy suggesting a more browsing diet (Fig.1). Notably, at the peak of the grass consumption for the two species (from May to August, before the occurrence of fruit in their diet), we highlight significant differences in the dental microwear signal. These results lead to the conclusion that conversely to the rumen contents, DMTA supports a more abrasive and tough alimentation (possibly herbaceous monocots) for the red deer compared with the fallow deer. In summary, the two species seem to occupy different micro-habitats with Dama in places where grasses are less abrasive and less tough than the place where Cervus grazes.Bibliography:[1] Azorit C, Tellado S, Oya A et al. (2012) Anim. Prod. Sci. 52: 720–727.[2] Calandra I, Merceron G (2016) Mammal Rev. in press.[3] Gebert C, Verheyden-Tixier H (2001) Mammal Rev. 31: 189–201.[4] Jackson J (1977) J. Zool. 181: 465–473.[5] Merceron G, Escarguel G, Angibault J-M et al. (2010). PLoS ONE 5: e9542.[6] Scott RS, Ungar P, Bergstrom TS et al. (2006) J. Hum. Evol. 51: 339–34
Collaboration in Iranian Scientific Publications
No full textThis study looks at international collaboration in Iranian scientific publications through the ISI Science Citation Index® (SCI) for the years 1995-1999, inclusive. These results are compared to and contrasted with the earlier findings for the periods covering 1985-1994 (Osareh & Wilson 2000). The results of Iran's increasing productivity over a 15-year period are presented. Iran doubled its output in the first two five-year periods and increased 2.8-fold from the second to the third five-year period. The rise in Iran's scientific publication output is due mainly to factors such as the ending of the war, better economic conditions, recent changes in the Iranian government's policy, basic changes in the political environment brought about by the Reformers, expansion of the Iranian presses for national publications, and the recent return of a large number of students trained overseas through government scholarships. External changes also account for the increased productivity, e.g., the acceptance of three Iranian source journals by the SCI, increased access to international databases through the Internet and better electronic communication facilities for international collaboration. One of the most important and significant factors that caused this dramatic rise seems to be the government's research policies in the last few years. Since 1999, the Iran Science, Research and Technology Ministry, has encouraged researchers to publish their non-Farsi language articles in highly ranked international scientific journals, for example, by giving prizes to researchers who publish their articles in ISI-ranked journals
Guía para la determinación de la edad del ciervo ibérico (Cervus elaphus hispanicus) a través de su dentición: revisión metodológica y técnicas de elección
No full textLa determinación de la edad de los ciervos cazados es fundamental e imprescindible para valorar tanto la calidad individual como la calidad de la población en su conjunto y pone en perspectiva cuestiones sobre gestión y manejo. La determinación de la edad es la mejor fuente de información para evaluar los resultados de la gestión desarrollada, monitorizar el cumplimiento de los objetivos marcados a medio y largo plazo, y valorar las consecuencias de prácticas de manejo anteriores. También constituye una información básica imprescindible para realizar predicciones sobre el futuro demográfico de las poblaciones a gestionar, bien sea para incrementar su densidad o para limitarla. Y además, es necesario conocer la edad con el mayor detalle y precisión posibles cuando se investigan temas como crecimiento corporal, reproducción, supervivencia o longevidad. Este trabajo recopila los resultados más destacados de la puesta a punto de diversos métodos y técnicas de determinación de edad en el ciervo ibérico (Cervus elaphus hispanicus) del sur de España, a partir del estudio de ciervos cazados en Sierra Morena Oriental y de edad conocida. Se revisan antecedentes, y fundamentos metodológicos haciendo especial referencia a las técnicas esqueletocronológicas es decir, al uso de marcas de crecimiento en tejidos dentales evidenciadas mediante histología convencional o petrografía. Se discuten y explican las limitaciones y errores intrínsecos a cada método a modo de guía práctica para veterinarios, biólogos y gestores interesados.Aging of hunted deer is essential to evaluate both the individual quality and the quality of the population as a whole, and puts into perspective questions about management and handling. The age determination is the best source of information to evaluate the results of the management undertaken, to monitor the achievement of objectives developed both medium and long term and to evaluate the consequences of the practices of previous management. It also constitutes as basic essential information to make predictions about the demographic future of the populations to manage, whether to increase their density or to limit it. It is also necessary to know the age with the greatest detail and precision as possible when subjects such as body growth, condition, reproduction, survival or longevity are investigated. This paper collects the most outstanding results of various methods and techniques for determining the age of the Iberian Deer (Cervus elaphus hispanicus) in the south of Spain, from the study of deer hunted in Oriental Sierra Morena and of a known age. Background is reviewed and methodological fundamentals with special reference to skeletochronology, the use of marks of growth in dental tissues evident through conventional histology or petrography. The limitation and intrinsic error to each method are discussed and explained as a kind of practical guide for interested veterinary, biologists and managers
La importancia de la gestión de los ciervos en Sierra Morena Oriental
No full textDiscurso de Ingreso como Académica Correspondient
Libro 2 de ingresos y egresos de cera así como los de efectivo que corresponden al fondo de la divina providencia cuya hermandad se estableció el mes de noviembre de 1915
No full textLibro 2 de ingresos y egresos de cera así como los de efectivo que corresponden al fondo de la divina providencia, cuya hermandad se estableció el mes de noviembre de 191
Libro de inventario de la Parroquia de Tepecoacuilco, Gro. No. 1
No full textLibro de inventario de la Parroquia de Tepecoacuilco, Gro. No. 1, 188
Libro de cofradías Mayanalán con la advocación de Nuestra Señora de la Asunción y Benditas Ánimas del Purgatorio
No full textLibro de cofradías Mayanalán con la advocación de Nuestra Señora de la Asunción y Benditas Ánimas del Purgatorio, 177
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