VARIATION IN TORTOISE LIFE HISTORY: DEMOGRAPHY OFGOPHERUS BERLANDIERI
نویسندگان
چکیده
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 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 کاملHuman Life History Variation and Sex Differences in Mortality Rates
Sex differences in mortality rates stem from multiple causes that are best understood when integrated in an evolutionary life history framework. This study investigates the relationship of sex differences in mortality rates across nations to indicators of the life history characteristics of populations. Controlling for gross national income per capita, the overall sex difference in mortality ra...
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: Ecology
سال: 2000
ISSN: 0012-9658
DOI: 10.1890/0012-9658(2000)081[1297:vitlhd]2.0.co;2