long childhood and far between the natural enemies or a short childhood and closely. Until now, it is unclear why bats, in particular, are long-lived. East ML, Höner OP, Wachter B, Wilhelm K, Burke T, Hofer H (2009) Maternal effects on offspring social status in spotted hyenas. The timing of reproduction. 7, life history theory draws on an evolutionary foundation, and studies the effects of natural selection on organisms, both throughout their lifetime and across generations. Medical life history, information gained by a physician by asking specific questions of a patient. If you're behind a web filter, please make sure that the domains *.kastatic. 4 Determinants of life history edit Many factors can determine the evolution of an organism's life history, especially the unpredictability of the environment. Factors that determine or modulate rates of cellular senescence and the aging of organisms have been studied mostly in humans and short-lived model laboratory organisms such as the fruit fly. 29 Income breeders, on the other hand, breed using resources that are generated concurrently with breeding, 28 and time that using the rate of change in body-condition relative to multiple fixed thresholds. Reply to Van Horn.
11 Life cycle edit All organisms follow a specific sequence in their development, 9 beginning with gestation and ending with death, which is known as the my pet bird essay in english life cycle. The genetical theory of natural selection. 3 12 All of these are defined in a specific biological way, which is not necessarily the same as the way that they are commonly used. (2000 A theory of human life history evolution: Diet, intelligence, and longevity. 4 It affects the levels of genetic variability because by serving as a source of variation and integration of fitness traits. 9 An important trade-off in the dedication of resources to breeding has to do with predation risk: organisms that have to deal with an increased risk of predation often invest less in breeding. In this complex, female-dominated society, high-born sons grew at higher rates, were more likely to disperse to clans offering the best fitness prospects, started reproducing earlier, and had a higher reproductive value than lower-born sons.
Life history may refer to: Life history theory, a theory of biological evolution t hat seeks to explain aspects of organisms anatomy and behavior by reference to the.
To explain the remarkable diversity of life histories among species we must unders tand how evolution shapes organisms to optimize their reproductive success.
How do organisms use different life history strategies to maximize fitness?