What is fecundity and examples?

For example fecundity is the potential to for a female to become pregnant and carry that pregnancy to a live birth in demography, while in clinical medicine it refers to actual production of live offspring.

What is difference between fertility and fecundity?

Fertility is the number of children born to a woman, while fecundity is her physiological potential to bear children. Fertility is often used as measure of fitness, and fecundity is related to reproductive value.

What is fecundity in animal science?

Fecundity is the ability to produce offspring. It can also describe the reproductive rate of an individual organism. … Animals have limited amounts of energy they can use for reproduction. Animals with high fecundity spend their energy in the production of many offspring that do not require much care.

What is ecological fecundity?

In ecology, ‘fecundity’ can be described simply as the. physiological maximum potential reproductive output of. an individual over its lifetime, and it is usually applied to. the female’s (rather than a male’s) output, although there. is no inherent reason why fecundity should be restricted.

What is maximum fecundity?

Maximum (or physiological) fecundity is the theoretical maximum number of offspring produced in a population assuming no ecological constraints. … While maximum fecundity is a constant for populations, realized fecundity varies over time based on the size, density, and age structure of the population.

What is the fecundity of humans?

Recognizing that there are many operational definitions of human fecundity, from a population research perspective, fecundity is defined as the biologic capacity to reproduce irrespective of pregnancy intentions, while fertility is demonstrated fecundity as measured by live births and sometimes stillbirths.

Is fecundity hereditary?

Fecundity is a developmental and genetic trait that advances within a specific framework. Dependent on various factors, e.g. lifestyle, stress, emotional and reproductive health, willingness, availability of a potential mating partner, and preventive measures being taken.

How is fecundity calculated?

The age-specific fecundity (mx) is calculated as the average number of offspring per female in age-class x. The sum of this column tracks the reproductive output of a hypothetical female that lives to the maximum observed age.

What is fecundity rate?

In demography and biology, fecundity is the actual reproductive rate of an organism or population, measured by the number of gametes (eggs), seed set, or asexual propagules. … Fecundity can increase or decrease in a population according to current conditions and certain regulating factors.

What is fecundity purpose?

Fecundity is an important component of both sexual and asexual reproduction, and it can be viewed as a direct (production of offspring) or an indirect (assisting in the reproduction of related individuals) process. …

What is fecundity of fish?

Fecundity. Fecundity can be defined as the number of ova that are likely to be laid by a fish during the spawning season. The number of eggs produced by a fish differs in different species, and depends on the size and age of the fish. It may also differ in different races of the same species.

What is health fecundity?

Fecundity: The ability to have children, usually lots of them with ease.

What factors affect fecundity?

Fecundity and egg production are affected by several factors, including environmental variations, food availability, breeding season duration, and spawning frequencies (Vazzoler, 1996).

What is absolute fecundity?

Definition of Term absolute fecundity (English) Total number of eggs in a female. (

Is human fecundity declining?

Human fertility rates are declining all over the world (Fig. 1). In some Western countries the rates are far below the point at which the population can be main- tained at the current level (Lutz et al., 2003; World Bank, 2005).

Who is father of demography?

John Graunt A corner of history: John Graunt, 1620-1674, the father of demography.

What is fecundity schedule?

Perhaps the most important summary term that can be extracted from a life table and fecundity schedule is the basic reproductive rate, denoted by R0. This is the mean number of offspring (of the first stage in the life cycle – in this case seeds) produced per original individual by the end of the cohort.

How does fecundity affect fertility?

Literally, fecundity means the ability to produce live offspring, and fertility means the actual production of live offspring. So fecundity refers to the potential production, and fertility to actual production, of live offspring.

What is fecundity in sociology?

Fecundity is the potential reproductive capacity of an individual within a population.

What is impaired fecundity?

Impaired fecundity is presented for all women, regardless of marital status, and includes problems getting pregnant and problems carrying a baby to term.

What is entomology fecundity?

Fecundity is a measure of the reproductive success of an animal. It is usually expressed as the number of eggs or offspring produced by an animal. This figure is often expressed as a rate of egg or offspring production or as total output during the lifespan of an organism.

Why is high fecundity important?

Fecundity measurements are of particular importance in animal biology and ecology since they are used for assessing population reproductive dynamics and energetics and for estimating their annual reproductive output and how it is linked to recruitment and population growth (Stearns 1992).

What is population fecundity?

Population fecundity (PF). i.e. the total number of eggs spawned by a population during the spawning season of a given year, is the fundamental criterion of the reproductive capacity of the population.

What is age-specific fecundity?

age-specific fecundity (mx): the average number of female offspring a female has at age x. … net reproductive rate (Ro): the average number of female offspring per females during their lifetime.

Which animals have high fecundity?

Wild animals, from birds to rabbits to snakes, usually produce more than one offspring at a time. Animals that produce multiple offspring and breed often are described as having high fecundity. Fecundity increases the chances that at least one of an animal’s offspring will survive to become a parent themselves.

What are the three ways of estimation of fecundity?

There are several methods for the estimation of fecundity of fish. These are (a) Volumetric method, (b) Gravimetric method and (c) Von Vayer method (Lagler, 1956). Volumetric method and Von Vayer method have been found to be suitable for relatively large eggs.