منابع مشابه
Tropical birds have a slow pace of life.
Tropical birds are relatively long-lived and produce few offspring, which develop slowly and mature relatively late in life, the slow end of the life-history axis, whereas temperate birds lie at the opposite end of this continuum. We tested the hypothesis that tropical birds have evolved a reduced basal metabolic rate (BMR). We measured BMR of 69 species of tropical birds, the largest data set ...
متن کاملSmall organ size contributes to the slow pace of life in tropical birds.
Attributes of an animal's life history, such as reproductive rate or longevity, typically fall along a 'slow-fast' continuum. Animals at the fast end of this continuum, such as temperate birds, are thought to experience high rates of mortality and invest more resources in reproduction, whereas animals at the slow end, such as tropical birds, live longer, have fewer offspring and invest more res...
متن کاملConstitutive innate immunity is a component of the pace-of-life syndrome in tropical birds.
We studied the relationship between one component of immune function and basal metabolic rate (BMR), an indicator of the 'pace-of-life syndrome', among 12 tropical bird species and among individuals of the tropical house wren (Troglodytes aedon), to gain insights into functional connections between life history and physiology. To assess constitutive innate immunity we introduced a new technique...
متن کاملFunctional linkages for the pace of life, life-history, and environment in birds.
For vertebrates, body mass underlies much of the variation in metabolism, but among animals of the same body mass, metabolism varies six-fold. Understanding how natural selection can influence variation in metabolism remains a central focus of Physiological Ecologists. Life-history theory postulates that many physiological traits, such as metabolism, may be understood in terms of key maturation...
متن کاملSouth temperate birds have higher apparent adult survival than tropical birds in Africa
P. Lloyd ([email protected]), Percy FitzPatrick Inst., DST/NRF Centre of Excellence, Univ. of Cape Town, P/Bag X3, Rondebosch, 7701, South Africa, and Biodiversity Assessment and Management Pty Ltd, PO Box 1376, Cleveland 4163, Australia. – F. Abadi, South African National Biodiversity Inst., P/Bag X7, Claremont 7735, South Africa, and School of Statistics and Actuarial Science, Univ. of Wit...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 2007
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.0702212104