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Population Dynamics: Emergent Properties and Regulatory Factors - Coggle…
Population Dynamics: Emergent Properties and Regulatory Factors
Emergent Properties of Populations
Population Density
The number of individuals per unit area, influencing resource competition and social interactions.
Age Structure
The distribution of individuals in various age groups, impacting population growth and resource needs.
Population Distribution
The spatial arrangement of individuals within a habitat, affecting access to resources and mate availability.
Population Growth Rate
The change in population size over time, which depends on births, deaths, immigration, and emigration.
Genetic Diversity
The variety of genes and alleles within a population, influencing adaptability and evolutionary potential.
Factors that Regulate Population Growth
Birth Rate (Natality)
The number of births per unit of population over a specific time, contributing to population increase.
Death Rate (Mortality)
The number of deaths per unit of population over a specific time, contributing to population decrease.
Immigration
The influx of individuals from external populations, adding to the population size.
Emigration
The outflow of individuals to other populations, reducing the population size.
Carrying Capacity
The maximum population size an environment can sustain indefinitely, influenced by resource availability.
Density-Dependent Factors
Factors such as competition, disease, and predation that affect population growth rate in relation to population density.
Density-Independent Factors
Factors such as natural disasters and climate events that impact population growth irrespective of density.
Reproductive Strategies
Organisms' approaches to reproduction, including r-selected (high reproduction, low parental care) and K-selected (few offspring, high parental care) strategies.