Search results
Results from the WOW.Com Content Network
Fecundity selection, also known as fertility selection, is the fitness advantage resulting from selection on traits that increases the number of offspring (i.e. fecundity). [1] Charles Darwin formulated the theory of fecundity selection between 1871 and 1874 to explain the widespread evolution of female-biased sexual size dimorphism (SSD ...
This is an example of indirect genetic benefits received by the choosy sex, because mating with such individuals will result in high-quality offspring. The indicator traits hypothesis is split into three highly related subtopics: the handicap theory of sexual selection, the good genes hypothesis, and the Hamilton–Zuk hypothesis.
Life history theory has provided new perspectives in understanding many aspects of human reproductive behavior, such as the relationship between poverty and fertility. [43] A number of statistical predictions have been confirmed by social data [ citation needed ] and there is a large body of scientific literature from studies in experimental ...
Human reproductive ecology is a subfield in evolutionary biology that is concerned with human reproductive processes and responses to ecological variables. [1] It is based in the natural and social sciences, and is based on theory and models deriving from human and animal biology, evolutionary theory, and ecology.
Socioecology research, for example, suggests that fundamental influences on demographic patterns are the distribution/fecundity of primary food sources as well as patterns of predation. When considering social behavior traits of a given species, consideration of these influences is in a sense, logically prior to analyses of inclusive fitness ...
Biologists have used life history theory to characterize between-species variation in resource-allocation in terms of a fast-slow continuum (see r/K selection theory), [44] and, more recently, some anthropologists and psychologists have applied this continuum to understand within-species variation in trade-offs between reproductive and somatic ...
The disposable soma theory of aging tells us that a longer lifespan will come at the cost of reproduction and thus longevity is not always correlated with high fecundity. [ 2 ] [ 3 ] Parental investment is a key factor in reproductive success since taking better care to offspring is what often will give them a fitness advantage later in life. [ 4 ]
In 2013, Fritzsche and Arnqvist tested Bateman's principle by estimating sexual selection between males and females in four seed beetles. They used a unique experimental design that showed sexual selection to be greater in males than in females. In contrast, sexual selection was also shown to be stronger for females in role-reversed species.