Species
What is the difference between threatened and endangered species?
Threatened- Likely to be endangered
Endangered- In danger of extinction
How the environment keeps populations from increasing forever.
Limiting Factors
How many types of survivorship curves are there?
3
Which type(s) of strategists have offspring?
Both R & K
Mortality
Death/ Death rate
Name one type of speciation
Behavioral, Mechanical, Temporal, Geographic
What is the graph where populations can increase exponentially?
J Curve
An "s" curve levels off due to what?
Carrying Capacity
K have _____ life expectancy, while R have _____ life expectancy
Long; Short
Natality Definition
Birth
If a gene pool of two populations are seperated, the populations may develop into a new species
Speciation
The term used for how a population stabalizes.
Carrying Capacity
_____ are made of individual organisms, each with a particular life span.
Populations
Which type(s) of survivorship curves are K strategists?
1&2
Temporal Isolation
Mate at different times
The combined genetic information for a particular populatoin of organisms.
Gene Pool
Give one example of a density-dependent factor and one example of a density-independent factor (label which is which).
dependent- biotic: predators, disease
independent- abiotic: droughts, floods, temperature
What shows the porbability of survival for a given species or group?
A survivorship curve
R strategists typically die off because they are subject to what because of their size?
Predation
Fecundity
Why do we not have a more specific number of species than "5-30 million"?
There is no central registry
The type of graph that increases at a constant amount.
Linear growth (or arethmetric growth)
A population pyramid that is shaped like a triangle shows a population that is what?
Growing or healthy
What is an example of each type of strategist? (Label which is which)
K- Humans or whales
R- Bacteria or incects
When 2 species can not compete for the same limited resources and both thrive.
Principle of competitive exclusion