https://www.socictopen.socict.org/files/original/60661bd25a9f91742ffbe4ea07a8be32.pdf aa23e1ef0db57417b87907d15a1e6e40 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Agricultura sostenible Description An account of the resource Dominio científico: Agricultura sostenible Text A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Global warming and avian occupancy of hot deserts: a physiological and behavioral perspective Calentamiento global y ocupación de desiertos cálidos por aves: una perspectiva fisiológica y conductual Creator An entity primarily responsible for making the resource BLAIR WOLF Description An account of the resource Avian adjustments to desert environments are characterized by an integration of behavior and physiology. These responses serve to maintain homeostasis and conserve vital resources such as water. The small size of birds confers a close coupling to the thermal environment and demands rapid adjustments to environmental challenges. Physiological responses to heat stress include hyperthermia, and increased evaporative cooling as environmental temperatures approach body temperature. Behaviorally, desert birds respond to heat stress by drastically reducing activity during the hottest parts of the day and selecting cool shaded microsites. This characteristic behavioral response presents a potential problem in the face of global warming. If birds totally forgo foraging during extremely hot periods, increased evaporative water loss rates due to higher environmental temperatures could lead to significant episodes of direct mortality for birds in these regions. A simple model is presented which integrates behavior and physiology to predict survival times based on dehydration tolerance, microsite selection and environmental temperature.Los ajustes de las aves a ambientes desérticos se caracterizan por la integración de la conducta y fisiología. Estas respuestas permiten mantener la homeostasis y conservar recursos vitales como el agua. El pequeño tamaño de las aves las acopla al ambiente térmico de un modo estrecho y demanda que ellas muestren respuestas rápidas a los desafíos del ambiente. Cuando la temperatura ambiente se aproxima a la temperatura corporal, las respuestas fisiológicas al estrés térmico incluyen hipertermia, así como un aumento en el enfriamiento por evaporación pulmo-cutánea. Conductualmente las aves responden al estrés calórico con la reducción de los patrones de actividad durante la parte mas calurosa del día, y seleccionando micro-sitios sombrados y más frescos. Frente al fenómeno de calentamiento global, estas características respuestas conductuales presentan problemas potenciales. Si las aves deben forrajear durante las horas más cálidas del día, la elevada pérdida de agua evaporativa podría significar episodios directos de mortalidad en estas regiones. Se presenta un modelo simple que integra fisiología y conducta para predecir tiempos de sobrevivencia basados en tolerancia a la deshidratación, selección de micrositios y temperatura ambiente Date A point or period of time associated with an event in the lifecycle of the resource 2000 Subject The topic of the resource Birds, Evaporative Water Loss, aves, avian distribution, balance hídrico, calentamiento global, desiertos cálidos, distribución de aves, global warming, hot deserts, pérdida de agua evaporativa, water balance Source A related resource from which the described resource is derived Revista Chilena de Historia Natural Publisher An entity responsible for making the resource available BMC Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Botany, Zoology Relation A related resource <a href="http://www.scielo.cl/scielo.php?script=sci_arttext&amp;pid=S0716-078X2000000300003" target="_blank" rel="noreferrer noopener">http://www.scielo.cl/scielo.php?script=sci_arttext&amp;pid=S0716-078X2000000300003</a>