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- breeding population noun : a population within which free interbreeding takes place and evolutionary change may appear and be preserved
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The meaning of BREEDING POPULATION is a population within which free interbreeding takes place and evolutionary change may appear and be preserved.
Jun 12, 2023 · Population genetics is a sub-discipline of genetics that characterizes the structure of breeding populations. The forces of mutation, migration, selection and genetic drift will alter the structure of populations.
May 31, 2024 · BREEDING POPULATION definition | Meaning, pronunciation, translations and examples
- Population Size
- Population Density
- Age Structure
- Fecundity
- Mortality
- Sex Ratio
Populations display distinctive behaviors based on their size. Small populations face a greater risk of extinction(Caughley 1994). Individuals in these populations can have a hard time finding quality mates so, fewer individuals mate and those that do risk inbreeding(Hamilton 1967). Additionally, individuals in small population are more susceptible...
A more complete description of a population's size includes the population density — the size of a population in relation to the amount of space that it occupies. Density is usually expressed as the number of individuals per unit area or volume(Lebreton et al. 1992). For example: the number of crows per square kilometer or the number of plankton pe...
Age structure can be represented graphically with a population pyramid (Figure 3). Although a population's age structure is not always pyramidal in shape, most populations have younger cohorts that are larger than older cohorts. For example, Sherman and Morton's studies of the Tioga Pass Belding's ground squirrels revealed birth cohorts larger than...
While maximum fecundity is a constant for populations, realized fecundity varies over time based on the size, density, and age structure of the population. External conditions, such as food and habitat availability, can also influence fecundity. Density-dependent regulation provides a negative feedback if the population grows too large, by reducing...
To visualize mortality and fecundity within a population, ecologists create life tables to display age-specific statistical summaries of a population's survival patterns. First developed by Roman actuaries, life tables were used to estimate how long individuals of a particular age category were expected to live in order to value life insurance prod...
Interestingly, sex ratio is not always random but can be manipulated at birth by environmental or physiological mechanisms. All crocodiles and many reptiles utilize a strategy called environmental sex determination, wherein incubation temperature determines the sex of each individual (Delmas et al. 2008). For example, low temperatures will produce ...
Population genetics is a sub-discipline of genetics that characterizes the structure of breeding populations. The forces of mutation, migration, selection and genetic drift will alter the structure of populations. In this introductory module we will focus on characterizing population structure at a single locus.
Jul 3, 2020 · Multi-parent populations (MPPs) Bi-parental populations, derived from crosses between two inbred lines, have been the standard design for genetic mapping in crops. There are three key...
BREEDING POPULATION meaning | Definition, pronunciation, translations and examples in American English
