Browsing by Title Facultad de Ciencias
Now showing items 2413-2432 of 8185
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(Springer, 2012)Intraspecific variation in sociality is thought to reflect a trade-off between current fitness benefits and costs that emerge from individuals' decision to join or leave groups. Since those benefits and costs may be ...
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(1997)In the Andes of Central Chile, flowering commences 1-2 months earlier on equatorial-(north-) facing than on polar- (south-) facing slopes, and pollinator assemblages also differ between these habitats. In order to understand ...
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(Elsevier, 2007)Current forestry practices in Chile largely rely on exotic tree plantations, and limited management experiences are available for the species-rich native evergreen rain forests. Yet, conservationists and forest scientists ...
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(Universidad de Chile, 2008)Pouteria splendens, palo colorado, es una especie de arbol endémico de chile central, único representante de la familia sapotaceae en chile. Su estado de conservación es vulnerable, con severa presión antrópica y ...
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(Universidad de Chile, 2017-04)El ámbito de hogar de un animal está determinado por el sexo, el tamaño corporal, la calidad del hábitat y la distribución del alimento, entre otros factores, además de poder ser afectado por interacciones parasitarias. ...
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(Universidad de Chile, 2011)Los patrones de distribución geográfica de parásitos en hospederos vertebrados a larga escala han sido poco estudiados y aún son desconocidos. En el presente estudio, evalué la riqueza de parásitos en diferentes poblaciones ...
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(Universidad de Chile., 1998)La utilización diferencial de microambientes térmicamente favorables pueden significar un ahorro importante en la energía que debe ser asignada al proceso de termorregulación y puede ser determinante dentro del presupuesto ...
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(Universidad de Chile, 1986)
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Ecology and evolution of negative and positive interactions in Cactaceae: Lessons and pending tasks (2012)Background: The Cactaceae is a diverse and conspicuous Neotropical family that has evolved a wide variety of adaptations during co-evolution with their interacting species. Recent research has indicated complex ecological ...
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(BLACKWELL, 2006-02)Aim To integrate the effects of ecosystem engineers (organisms that create, maintain or destroy habitat for other species) sharing the same archetype on species diversity, and assess whether different engineer species have ...
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(BLACKWELL, 2007-07)1. Ecosystem engineers are organisms that change abiotic conditions in ways that affect the performance and distribution of other species, including exotics. Several mechanisms have been proposed for the successful ...
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(Elsevier, 2020)In this article, we explore the connections between ecosystem degradation and ecosystem services. We discuss an operational definition of ecosystem degradation and applied it to the terrestrial ecosystem of Chiloe Island ...
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(2013)Despite of being structurally simpler and species-impoverished than natural forests, agroforestry plantations can act as a secondary habitat for native species and sustain some biodiversity. In particular, insectivores ...
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(Elsevier, 2015)The analysis of temporal changes in the number of scientific articles vvritten on ecosystem services shows an exponential growth from 1991 to 2013. Hovvever, it also shows a lack of information regarding the location of ...
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(Frontiers Media, 2021)Ecto-5 '-nucleotidase (CD73) is an enzyme present on the surface of tumor cells whose primary described function is the production of extracellular adenosine. Due to the immunosuppressive properties of adenosine, CD73 is ...
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(Universidad de Chile, 2005)En este trabajo se estudiarán ecuaciones cuasilineales asociadas al p-laplaciano con pesos singulares en el origen. Este estudio generará resultados de existencia y multiplicidad de soluciones. Para esto consideraremos no ...
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(Universidad de Chile, 2015)
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(Universidad de Chile, 2011)Uno de los problemas del estudio de superficies de Riemann Compactas es el de buscar ecuaciones que la definan como curvas planas. Esta tesis estudia un método para encontrar ese tipo de ecuaciones para Superficies de ...
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(Universidad de Chile., 1978)Este trabajo enfatiza el estudio de edad, crecimiento y ciclo reproductivo con el objetivo de ampliar y complementar los trabajos realizados y contribuir al conocimiento de la dinámica de las poblaciones ícticas continentales. ...