14 research outputs found

    Flora of the tropical deciduous forest in a gypseous and calcareous area, Colima, Mexico

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    Antecedentes y Objetivos: La microcuenca La Salada, ubicada al centro-sur de Colima, cubierta por bosque tropical caducifolio (BTC) sobre sustratos yesosos (74.5%) y calcåreos (25.5%), fue explorada por el eminente botånico Rogers McVaugh para la Flora Novo-Galiciana. Sin embargo, solo parte del material colectado ha estado disponible. El objetivo del trabajo fue documentar la diversidad de plantas vasculares de la zona, para evidenciar su relevancia biológica. Métodos: Se realizaron una revisión bibliogråfica y de material de herbario (IBUG y MICH) y colectas de campo para integrar la lista florística. Complementariamente se revisaron bases de datos electrónicas (IBdata y GBIF) para obtener registros de colectas en sitios de Colima con características ecológicas similares al årea muestreada. Para comparar la diversidad del årea con la de otros sitios con BTC se calculó el índice de diversidad taxonómica (IDT). Resultados clave: Se registraron 408 taxones, 248 géneros y 78 familias de la flora de BTC de sustratos yesoso-calcåreos de Colima. Se presentan dos apéndices, uno se basa en registros del årea muestreada por los autores y otro en registros de otras åreas yesoso-calcåreas de Colima obtenidos de bases de datos. Del årea muestreada se registraron 368 taxones (incluyendo 16 infraespecíficos) de 233 géneros y 75 familias. Fabaceae, Euphorbiaceae, Asteraceae, Malvaceae, Poaceae y Convolvulaceae son las familias mås representadas (48% de los taxones). Los géneros mås diversos son Euphorbia (13), Bursera (ocho), Ipomoea (siete) y Tillandsia (seis). De las especies registradas 39% (144) son endémicas de México y el årea constituye la localidad tipo de 23. Se anotan 11 taxones no registrados antes para el estado de Colima. El valor IDT fue de 330.35 especies/ln årea. Conclusiones: La alta diversidad florística y endemismo de la zona, y la singularidad del sustrato yesoso, merecen la conservación de estos ecosistemas que estån siendo impactados en Colima.Background and Aims: The study area of La Salada basin is situated in the southern-central area of Colima, characterized by tropical dry forest vegetation on gypseous (74.5%) and calcareous (25.5%) soils. This site was visited by the eminent botanist Rogers McVaugh and is represented in the Flora Novo-Galiciana. However, only a part of his collections has been available for consultation. The objective here is to document the diversity of vascular plants in this site providing evidence which sustains its biological relevance. Methods: Revisions of bibliography and material in the herbaria IBUG and MICH were made. Specimens from recent fieldwork were integrated into the list. Additionally, electronic databases (IBdata and GBIF) were reviewed to obtain records of collections in sites of Colima with ecological characteristics similar to the sampled area. The Index of Taxonomic Diversity (IDT) was calculated facilitating comparisons of values for other areas with tropical dry forests. Key results: A total of 408 taxa, 248 genera and 78 families of vascular plants of BTC in gypseous-calcareous soils of Colima were registered. Two appendices are provided: the first with authorsŽ collections and those in bibliography; and the second with citations of species in other gypseous-calcareous soils in Colima from databases. In the first, 368 taxa (including 16 infraspecific taxa) in 233 genera and 75 families were recorded. The families Fabaceae, Euphorbiaceae, Asteraceae, Malvaceae, Poaceae and Convolvulaceae total 48% of the reported flora. The genera with greatest diversity were Euphorbia (13), Bursera (eight), Ipomoea (seven) and Tillandsia (six). Of the species recorded 39% (144) are endemic to Mexico and this site is the type location for 23 species. The IDT calculated is 330.35 species/ln area. Conclusions: The high floristic diversity and endemism of the area with gypseous and calcareous soils, substantiate conservation of these ecosystems which are being impacted in Colima

    How to Save Endangered Magnolias? From Population Biology to Conservation Action: The Case of Allopatric Radiation in Western Mexico

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    Numerous Neotropical Magnolia species are endangered and red-listed by the IUCN. Here we highlight major results from over a decade of research on endangered magnolias in western Mexico. Particularly, we compare three species of Magnolia (M. pugana, M. pacifica and M. vallartensis) along a large-scale continentality and moisture gradients, in terms of a) their morphological adaptations, b) genetic structure, diversity, and differentiation, c) reproductive phenology, and d) floral scents and their floral visitors. Fieldwork along this gradient unveiled two new species of Magnolia sect. Magnolia; M. granbarrancae and M. talpana. We found that most continental populations have a higher extinction risk than those with greater maritime influence, due to their lower genetic diversity, and greater fragmentation, isolation, and water stress. Also, these populations are more vulnerable to the environmental conditions predicted with the global warming climate scenarios. We share fieldwork experience and advise on pre-germination treatments and seed dormancy. We propose an ex-situ and in-situ conservation strategy, identify new challenges, and suggest future directions of collaborative work as a global Magnolia conservation consortium

    Prevalence, associated factors and outcomes of pressure injuries in adult intensive care unit patients: the DecubICUs study

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    Funder: European Society of Intensive Care Medicine; doi: http://dx.doi.org/10.13039/501100013347Funder: Flemish Society for Critical Care NursesAbstract: Purpose: Intensive care unit (ICU) patients are particularly susceptible to developing pressure injuries. Epidemiologic data is however unavailable. We aimed to provide an international picture of the extent of pressure injuries and factors associated with ICU-acquired pressure injuries in adult ICU patients. Methods: International 1-day point-prevalence study; follow-up for outcome assessment until hospital discharge (maximum 12 weeks). Factors associated with ICU-acquired pressure injury and hospital mortality were assessed by generalised linear mixed-effects regression analysis. Results: Data from 13,254 patients in 1117 ICUs (90 countries) revealed 6747 pressure injuries; 3997 (59.2%) were ICU-acquired. Overall prevalence was 26.6% (95% confidence interval [CI] 25.9–27.3). ICU-acquired prevalence was 16.2% (95% CI 15.6–16.8). Sacrum (37%) and heels (19.5%) were most affected. Factors independently associated with ICU-acquired pressure injuries were older age, male sex, being underweight, emergency surgery, higher Simplified Acute Physiology Score II, Braden score 3 days, comorbidities (chronic obstructive pulmonary disease, immunodeficiency), organ support (renal replacement, mechanical ventilation on ICU admission), and being in a low or lower-middle income-economy. Gradually increasing associations with mortality were identified for increasing severity of pressure injury: stage I (odds ratio [OR] 1.5; 95% CI 1.2–1.8), stage II (OR 1.6; 95% CI 1.4–1.9), and stage III or worse (OR 2.8; 95% CI 2.3–3.3). Conclusion: Pressure injuries are common in adult ICU patients. ICU-acquired pressure injuries are associated with mainly intrinsic factors and mortality. Optimal care standards, increased awareness, appropriate resource allocation, and further research into optimal prevention are pivotal to tackle this important patient safety threat

    Ética y ciudadanía - HU316 201801

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    DescripciĂłn: Ética y CiudadanĂ­a es un curso de formaciĂłn general, de carĂĄcter teĂłrico-prĂĄctico, dirigido a estudiantes de ciclos iniciales de distintas carreras; que busca contribuir al desarrollo una de las competencias generales de nuestro modelo educativo: CiudadanĂ­a en el nivel 1. PropĂłsito: El curso pretende contribuir con el aprendizaje Ă©tico y ciudadano de los estudiantes invitĂĄndolos a conocer y explicar problemas Ă©ticos y de su vida cotidiana. Teniendo en cuenta que este curso se realiza bajo la modalidad semipresencial, se proponen diversas actividades educativas de tipo individual y grupal, tanto en las sesiones presenciales como en las sesiones virtuales, lo que supone una participaciĂłn activa, organizada y permanente por parte de los estudiantes. Las estrategias a utilizarse incluyen: lectura y discusiĂłn de textos, anĂĄlisis y evaluaciĂłn de pelĂ­culas y documentales, resoluciĂłn de casos, debates y exposiciones, foros virtuales. Siendo el docente la pieza clave para este proceso de aprendizaje, cumple con el rol de promover un ambiente colaborativo a travĂ©s del diĂĄlogo, el respeto y la reflexiĂłn, partiendo del conocimiento previo y las fortalezas de los estudiantes para generar nuevas capacidades y desarrollar la competencia asociada al curso

    The early Castilian peasantry: an archaeological turn?

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