DOI: 10.1016/j.palaeo.2016.03.033
论文题名: Prediction of offspring in extant and extinct mammals to add light on paleoecology and evolution
作者: Andrea E.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2016
卷: 453 起始页码: 73
结束页码: 79
语种: 英语
英文关键词: Fossil mammal
; Life history
; Offspring estimation
; Paleobiology
; Paleoecology
英文摘要: Reproductive strategies can be inferred from adult body mass, although offspring characteristics can give more accurate tools to predict life histories. In fossil mammals, adult body mass estimation incorporates error to the possible predictions, and additionally, there are not estimators of the offspring. Here I test the significance of two measurements, the inter-acetabulum width and the lumbar length, as predictors of offspring body mass, litter weight, and litter size in extant and fossil mammals. The inter-acetabulum width is the best measurement to estimate offspring body mass and litter weight, whereas litter size can be estimated from the division of litter weight on offspring body mass. The possibility of estimating these offspring variables gives a new approximation to study the history of life, paleoecology, and evolution of fossil species. Ecological aspects as developmental and maturity time, can be combined to study population growth, faunal interaction and evolution in fossil taxa. Some interpretative factors are proposed as start point to study fossil fauna taking into account offspring and reproductive information. © 2016 Elsevier B.V.. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/68419
Appears in Collections: 过去全球变化的重建
There are no files associated with this item.
作者单位: CONICET, Cátedra de Anatomía Comparada, Facultad de Ciencias Naturales y Museo, UNLP, Calle 64 s/n entre 120 y diagonal 113, La Plata, Buenos Aires, Argentina
Recommended Citation:
Andrea E.. Prediction of offspring in extant and extinct mammals to add light on paleoecology and evolution[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2016-01-01,453