The stable equivalent population, age composition, and Fisher’s reproductive value function
نویسندگان
چکیده
منابع مشابه
On Fisher’s Reproductive Value and Lotka’s Stable Population
As Caswell (2001) points out, Reproductive Value (RV) as presented in Fisher 1930 is an abstract concept difficult to interpret. Fortunately, Crow (2002) found the original paper where Fisher (1927) introduced for the first time the idea of a reproductive value. Crow noted one important clarification to Fisher’s 1930 formulation: the assumption of ascribing the value of unity to newborns, which...
متن کاملReproductive value and fluctuating selection in an age-structured population.
Fluctuations in age structure caused by environmental stochasticity create autocorrelation and transient fluctuations in both population size and allele frequency, which complicate demographic and evolutionary analyses. Following a suggestion of Fisher, we show that weighting individuals of different age by their reproductive value serves as a filter, removing temporal autocorrelation in popula...
متن کاملThe Relationship of Cold and Hot Temperaments with Sexual Function among Women of Reproductive Age
Background & aim: One of the most important factors for couples' happiness is having a good sexual function. One of the issues that affect couples' sexual function is their temperament. In this regard, the present study was conducted to determine the relationship of hot and cold temperaments with sexual function among women of reproductive age. Method...
متن کاملThe Relationship of Social Participation with Sexual Function and Satisfaction among Women of Reproductive Age
Background & aim: Sexual satisfaction is one of the most important aspects of sexual function, and it plays an essential role in marital satisfaction. This study was conducted to evaluate the relationship of social participation with female sexual function and satisfaction at reproductive age. Methods: In this comparative descriptive study, the data was obtained from a total of 284 married Iran...
متن کاملon the equivalence of constructed-response and multiple-choice : stem-equivalent, stem non-equivalent but content equivalent, and stem and content non-equivalent items in reading comprehension using multifaceted rasch
the present study investigated construct equivalence of multiple choice (mc) and constructed response (cr) item types across stem and content equivalent mc and cr items (item type ‘a’), non-stem-equivalent but content equivalent mc and cr items (item type ‘b’), and non-stem and non-content equivalent mc and cr items (item type ‘c’). one hundred seventy english-major undergraduates completed mc ...
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ژورنال
عنوان ژورنال: Demography
سال: 1977
ISSN: 0070-3370,1533-7790
DOI: 10.2307/2060456