67 research outputs found
Topical 1% Nalbuphine on corneal sensivity and epitheilization after experimental lamellar keratectomy in rabbits
Consumo, degradabilidade in situ e cinética ruminal em bovinos suplementados com diferentes proteinados
Substituição do farelo de soja por uréia ou amiréia na dieta de bovinos de corte confinados
Diverse aging rates in ectothermic tetrapods provide insights for the evolution of aging and longevity
Comparative studies of mortality in the wild are necessary to understand the evolution of aging; yet, ectothermic tetrapods are underrepresented in this comparative landscape, despite their suitability for testing evolutionary hypotheses. We present a study of aging rates and longevity across wild tetrapod ectotherms, using data from 107 populations (77 species) of nonavian reptiles and amphibians. We test hypotheses of how thermoregulatory mode, environmental temperature, protective phenotypes, and pace of life history contribute to demographic aging. Controlling for phylogeny and body size, ectotherms display a higher diversity of aging rates compared with endotherms and include phylogenetically widespread evidence of negligible aging. Protective phenotypes and life-history strategies further explain macroevolutionary patterns of aging. Analyzing ectothermic tetrapods in a comparative context enhances our understanding of the evolution of aging.Animal science
Comparative Value of Alfalfa Pasture, Alfalfa Greenchop, or Alfalfa Hay for Lactating Dairy Cows
Road logs and tour stop descriptions for clay minerals society 1996 field trip in the Smoky Mountains area
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