Population Ecology 1
What is Intraspecific competition?
What is competition within the same species?
The graph that represents a reproductive model where an organism can reproduce rapidly due to short lifespans and no parental care
What is exponential growth (J-curve)
ecological influences on a population (like competition, predation, or disease) that become stronger as the population density increases, regulating its size by affecting birth/death rates
Density dependent factor
environmental factors that affect populations regardless of the population density (ex. floods, fires, climate change, etc.)
Density-independent factors
True or false births increase population size
What is true?
Natural disasters (hurricanes, fires, floods, etc.) affect a population as density dependent or density independent factors?
What are density independent factors?
This factor describes non-living things in an ecosystem
What is abiotic?
Maximum number of organisms that can be supported in a given environment.
What is carrying capacity?
This occurs when one organism benefits from living and feeding on another organism.
What is parasitism?
something that helps determine how large a population can grow.
What is limiting factor?
This factor describes a living organism
What is biotic factor?
Disease, competition, and availability of mates are which type of factor, density dependent or density independent?
What are density dependent factors?
When this relationship occurs, the populations of 2 species depend on one another and fluctuate over time
What is predator- prey relationship?
In this type of relationship both organisms benefit from the interaction
What is mutualism
Births, deaths, immigration, emigration, migration
Factors of population change
_________ is a relationship between organisms where one species benefits and the other is neither harmed nor helped
What is commensalism
What kind of growth curve would there be within a population if there are few individuals with an abundance of resources?
What is exponential
A factor which causes population changes that are greater depending on the population density
What are density-dependent factors?
A factor which causes population changes regardless of the density
What is a Density Independent factor?
The graph that represents a reproductive model where an organism can reproduce rapidly until a limiting factor slows population growth and diebacks occur
What is Logistic growth (S-curve)?
This level will have the largest amount of biomass on a biomass pyramid
What are the producers?
This describes an organisms and its requirements for survival and feeding relationships. The role in the ecosystem.
What is niche
This growth shows a j-shaped curve where populations can grow faster and faster
What is exponential growth?
This type of growth curve could be expected from a population of rabbits that has reached its carrying capacity.
What is logistic growth (S-curve)
This biotic factor could affect the size of a population
A. amount of available water
B. range of temperatures
C. Number and type of predators
D. Concentration of soil nutrients
C. Number and type of predators