Interactions AA
The natural environment of an organism, or the place where an organism lives and grows.
Habitat
A relationship or interaction between two different organisms that share similar habitats.
Symbiosis
The pattern in which organisms in the population live in relation to each other.
Population Dispersion
This occurs when resources are limited, thereby setting a maximum number an environment can support.
Logistical Growth
Any force that affects the size of a population of living things regardless of the density of the population.
Density-independent limiting factor
A species' position and role within an ecosystem.
Ecological niche
A type of symbiotic relationship in biology where two or more species interact and each benefits
Mutualism
A graph that shows the proportion of a species or group that survives to each age.
Survivorship Curve
A species' average population size in a particular habitat.
Carrying Capacity
The process by which the mix of species and habitat in an area changes over time.
Succession
Two species from different taxonomic groups that have adapted to similar habitats and niches in different regions.
Ecological equivalent
a relationship in which one organism benefits but the other is neither helped nor harmed.
Commensalism
The movement of an organism to an area.
Immigration
A sudden decline in the numbers of individual members in a population, species or group of organisms.
Population Crash
The first step of ecological succession when plants and animals colonize a barren, lifeless environment for the first time.
Primary succession
A relationship between organisms that strive for the same resources in the same place.
Competition
Relationship between two living species where one organism benefits at the expense of the other.
Parasitism
When a population or organism leaves their native land to pursue a new life in a non-native land.
Emigration
Environmental conditions that limit the growth, abundance, or distribution of an organism or a population of organisms in an ecosystem.
Limiting Factor
Species that arrive first in the newly created environment.
Pioneer species
A biological interaction where one organism, the predator, kills and eats another organism, the prey, for food.
Predation
The average number of individuals in a population per unit of area or volume.
Population Density
A process that increases quantity over time at an ever-increasing rate.
Exponential Growth
A factor that affects the growth rate of a population based on how dense the population is.
Density-dependent limiting factor
The colonization of a habitat that once supported plant and animal life but was abandoned due to ecological disturbance.
Secondary succession