Environmental - chapter 8: Populations
exponential growth
Growth pattern in which the individuals in a population reproduce at a constant rate
What would happen to a population if each pair of adults had two offspring and the offspring lived to reproduce?
It would remain the same
Flowering plants and their pollinators are an example of
a relationship that has coevolved
generation time
average age at which members of a species reproduce
The number of wild horses per square kilometer in a prairie is the horse populations
density
a butterfly pollinating a flower as it drinks nectar from the flower is an example of what?
mutualism
A kangaroo's role as a large herbivore on Australian grasslands is an example of:
niche
three lampreys attached to a fish and sucking its body fluids for food is an example of?
parasitism
All the black squirrels living in a forest is an example of what?
population
An owl snatching a mouse from a field to eat is an example of ________________.
predation
examples of exponential growth
rabbit populations after being introduced to Australia, . a bank account that earns interest, mold appearing on bread overnight
reproductive potential
the maximum number of offspring that a given organism can produce
Direct Competition
when individuals compete directly with each other for the same resources
Indirect Competition
when organisms use the same resource, but don't necessarily interact with each other
Parasitism
A relationship between two organisms of different species where one benefits and the other is harmed
What determines the carrying capacity?
The supply of the most limited resources
Competition for food can not occur
between animals from two different ecosystems
density independent
cause of death that does not occur more quickly in crowded populations
a large population of geese gathered in a marsh is an example of what?
clumped dispersion
an orchid using a high tree branch as a place of attachment to receive more sunlight but not affecting the tree is an example of what?
commensalism
Woodpeckers eating at a bird feeder would be an example of what?
competition
