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	Provedor de dados RChHN (1) Autor WOLF,BLAIR (1) Palavra-chave Avian distribution (1) Birds (1) Evaporative water loss (1) Global warming (1) Hot deserts (1) Water balance (1) Mais... Tipo do documento Journal article (1) Ano 2000 (1) País Chile (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Global warming and avian occupancy of hot deserts: a physiological and behavioral perspective RChHN WOLF,BLAIR. 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... Tipo: Journal article Palavras-chave: Global warming; Hot deserts; Birds; Water balance; Evaporative water loss; Avian distribution. Ano: 2000 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2000000300003 Registros recuperados: 1 Primeira ... 1 ... Última

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