Biology Ch 14 Vocab Flashcards
cardio
heart
cereb
brain
chromo
color
circ
around
con
together
Limiting factors that are affected by the number of individuals in a given population
Density-dependent factors
The aspects of the environment that limit a population’s growth regardless of the density of the population
Density-independent
The sequence of biotic changes that regenerate a damaged community or create a community in a previously uninhabited area
succession
The establishment and development of an ecosystem in an area that was previously uninhabited
primary succession
The first organisms that live in a previously uninhabited area
pioneer species
The re-establishment of a damaged ecosystem in an area where the soil was left intact
secondary succession
Exponential growth
Population growth that is unhindered; usually because of abundant resources
Which of the following would not be an example of primary succession? A melting glacier, flooding, a volcanic eruption, or strip mining
flooding
Which of the following answers would not be part of the habitat but is part of the ecological niche? biotic factors, abiotic factors, behavior, food
behavior
Which of the following is not an example of competition? Two male lions fighting over mating rights, a lion and a hyena fighting over a kill, two birds displaying territorial rights, a tick attaching to a dog
a tick attaching to a dog
The lesser long-nosed bat depends on night-blooming cacti as its primary food source. As the bat feeds on the cactus fruit the seeds from the cactus are also ingested. The indigestible seeds are dispersed to new locations in the bat droppings. Those that land in a favorable environment will develop into new cacti plants. This is an example of which type of symbiosis?
mutualism
carcin
cancer
cephalo
head
chloro
green
chondro
cartilage
counter
against
What is a habitat?
all the biotic and abiotic factors in the area where an organism lives
What is an ecological niche?
all of the chemical, physical, and biological factors that a species needs to survive, stay healthy and reproduce
What is competitive exclusion?
when two species are competing for the same resources, and one species is better suited to the niche pushing the other species out or making it extinct
Ecological equivalent
Species that occupy similar niches but live in different geographical regions
Competition
When organisms fight over the same resources
predation
The process by which one organism captures and feeds upon another organism
symbiosis
a close ecological relationship between two or more organisms of different species that live in direct contact with one another
mutualism
An interspecies interaction in which both organisms benefit
commensalism
A relationship between two organisms in which one receives and ecological benefit form the other, while the other species neither benefits or is harmed
parasitism
a relationship in which one species benefits and the other, the host, is harmed
population density
a measurement of the number of individuals living in a defined space
population dispersion
the way in which individuals of a population are spread in an area
survivorship curve
a generalized diagram showing the number of surviving members over time from a measured set of births
carrying capacity
the maximum number of individuals of a particular species that the environment can normally and consistently support
population crash
a dramatic decline in the size of a population over a short period of time
immigration
the movement of individuals INTO a population from another population
emigration
the movement of individuals OUT of a population into another population
exponential growth
occurs when a population size increases dramatically over a period of time
logistic growth
a population begins with a period of slow growth followed by a brief period of exponential growth before leveling off at a stable size
limiting factor
a factor that has the greatest effect in keeping down the size of a population
What are the two types of limiting factors?
density dependent and density independent
