789 resultados para Forest management -- Catalonia -- Maçanet de la Selva


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Includes bibliographies.

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Mode of access: Internet.

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Mode of access: Internet.

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"Representada por primera vez en el teatro de Novedades la noche del 24 de Diciembre de 1862" -port.-

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"May 1996."

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Amphibian populations are declining even in pristine areas in many parts of the world, and in the Neotropics most such enigmatic amphibian declines have occurred in mid- to high-elevation sites. However, amphibian populations have also declined at La Selva Biological Station in the lowlands of Costa Rica, and similar declines in populations of lizards have occurred at the site as well. To set the stage for describing amphibian declines at La Selva, I thoroughly review knowledge of amphibian decline and amphibian conservation in Central America: I describe general patterns in biodiversity, evaluate major patterns in and ecological correlates of threat status, review trends in basic and applied conservation literature, and recommend directions for future research. I then synthesize data on population densities of amphibians, as well as ecologically similar reptiles, over a 35-year periods using quantitative datasets from a range of studies. This synthesis identifies assemblage-wide declines of approximately 75% for both amphibians and reptiles between 1970 and 2005. Because these declines defy patterns most commonly reported in the Neotropics, it is difficult to assess causality evoking known processes associated with enigmatic decline events. I conduct a 12-month pathogen surveillance program to evaluate infection of frogs by the amphibian chytrid fungus, an emerging pathogen linked to decline events worldwide Although lowland forests are generally believed to be too warm for presence or adverse population effects of chytridiomycosis, I present evidence for seasonal patterns in infection prevalence with highest prevalence in the coolest parts of the year. Finally, I conducted a 16-month field experiment to explore the role of changes to dynamics of leaf litter, a critical resource for both frogs and lizards. Population responses by frogs and lizards indicate that litter regulates population densities of frogs and lizards, particularly those species with the highest decline rate. My work illustrates that sites that are assumed to be pristine are likely impacted by a variety of novel stressors, and that even fauna within protected areas may be suffering unexpected declines.

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The purpose of my project is to provide a compilation of the work of Nicaraguan born poet, Salomon De la Selva, who incidentally was nominated for a Nobel Prize in 1919, and was the first Latin-American poet to publish extensively in English. In order to achieve this goal, my research methods included the substantial use of the Internet, as well as two investigative trips to Mexico and one to Nicaragua, which ultimately led me to uncover a total of 135 unaccounted English-language poems. In addition, De la Selva's uniqueness lies in the fact that he was a truly bilingual writer, who was equally able to create both in English and Spanish, simultaneously. Therefore, my project not only represents an act of reclamation, but the new material also provides new exciting possibilities for his work by facilitating an intertextual analysis of his poems, which will aid in understanding the complexities of bilingualism.