منابع مشابه
Life-history Variation in Lacertid Lizards
Bauwens, D.: Life-history variation in lacertid lizards. Nat. Croat., Vol. 8, No. 3., 239–252, 1999, Zagreb. The life history of an organism is the combination of age-specific survival probabilities and fecundities it displays in its natural environment. Hence, an organism's life history is characterised by its age and size at maturity, frequency of reproduction, clutch or litter size, size of ...
متن کاملCognitive Ability Influences Reproductive Life History Variation in the Wild
Cognition has been studied intensively for several decades, but the evolutionary processes that shape individual variation in cognitive traits remain elusive [1-3]. For instance, the strength of selection on a cognitive trait has never been estimated in a natural population, and the possibility that positive links with life history variation [1-5] are mitigated by costs [6] or confounded by eco...
متن کاملPopulation and life-history consequences of within-cohort individual variation.
The consequences of within-cohort (i.e., among-individual) variation for population dynamics are poorly understood, in particular for the case where life history is density dependent. We develop a physiologically structured population model that incorporates individual variation among and within cohorts and allows us to explore the intertwined relationship between individual life history and po...
متن کاملLife history consequences of nest-site variation in tropical pythons
We document and interpret microgeographic variation in life history traits of water pythons (Liasis fuscus) on the Adelaide River floodplain in tropical Australia. Subpopulations of pythons separated by [less than] 2 km differ in reproductive timing, in survival rates at three different life history stages (adults, embryos, and hatchlings), in costs of reproduction, and in reproductive frequenc...
متن کاملIntraspecific Life History Variation in Sceloporus undulatus: A Factor Analysis
We examined life history variation in the lizard, Sceloporus undulatus, across its range. Data from published studies on 14 populations of S. undulatus were analyzed using factor analysis. Four factors were generated from the data. Factor 1 reflected the influence of body size on lizard life histories and explained 31% ofthe variance in S. undulatus life histories. Factor 2 represented the nega...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Evolution
سال: 1977
ISSN: 0014-3820
DOI: 10.1111/j.1558-5646.1977.tb01004.x