A population analysis of the ovoviviparous lizard Sceloporus jarrovi in the Pinaleno mountains of southeastern Arizona
作者： A. E. Dunham , D. E. Ruby
DOI:
关键词:
摘要: The life history and demography of a population Yarrow's spiny lizard, Sceloporus jarrovi, was studied in the Pinalefio Mountains southeastern Arizona from 1972-1974. Sizespecific clutch sizes maximum female body size were smaller than at similar elevation Chiricahua Mountains. A average snout-vent length (72 mm) here had 5.6 ? 1.9 (SE) offspring. Males grew faster females all ages significantly larger. Survivorship young adults varied between years with adult survivorship being 36%. Winter (October-May) higher summer (June-October) survivorship. Adult densities highest spring steadily declined through summer. Sex ratios among yearlings, but not other age classes, differed an expected 1:1 ratio. Life tables based on age-specific fecundity mortality rates resulted net replacement (RO) about 1.0. generation time Pinalenio slightly longer for population. Possible differences environments mountains are discussed relation to observed differences.
jstor.org 参考文章(36)
D. W. Tinkle, J. W. Gibbons, The distribution and evolution of viviparity in reptiles University of Michigan Museum of Zoology. ,(1977)
A. E. Dunham, Populations in a fluctuating environment: the comparative population ecology of the iguanid lizards Sceloporus merriami and Urosaurus ornatus University of Michigan Museum of Zoology. ,(1981)
Gary W. Ferguson, Charles H. Bohlen, H. Patrick Woolley, SCELOPORUS UNDULATUS: COMPARATIVE LIFE HISTORY AND REGULATION OF A KANSAS POPULATION' Ecology. ,vol. 61, pp. 313- 322 ,(1980) , 10.2307/1935190
Henry S. Fitch, W. Frank Blair, The rusty lizard : a population study Copeia. ,vol. 1960, pp. 386- ,(1960) , 10.2307/1439792
Richard Shine, J. J. Bull, The Evolution of Live-Bearing in Lizards and Snakes The American Naturalist. ,vol. 113, pp. 905- 923 ,(1979) , 10.1086/283444
Justin D. Congdon, Royce E. Ballinger, Kenneth A. Nagy, Energetics, Temperature and Water Relations in Winter Aggregated Sceloporus Jarrovi (Sauria: Iguanidae) Ecology. ,vol. 60, pp. 30- 35 ,(1979) , 10.2307/1936464
Sir Ronald Aylmer Fisher, The Genetical Theory of Natural Selection ,(1930)
Louis J. Guillette, Sandra Spielvogel, Frank L. Moore, Luteal development, placentation, and plasma progesterone concentration in the viviparous lizard Sceloporus jarrovi General and Comparative Endocrinology. ,vol. 43, pp. 20- 29 ,(1981) , 10.1016/0016-6480(81)90027-7
Richard Shine, “Costs” of reproduction in reptiles Oecologia. ,vol. 46, pp. 92- 100 ,(1980) , 10.1007/BF00346972
Carol A. Simon, George A. Middendorf, Resource Partitioning by an Iguanid Lizard: Temporal and Microhabitat Aspects Ecology. ,vol. 57, pp. 1317- 1320 ,(1976) , 10.2307/1935057