Population Patterns
What are the 3 types of population dispersion?
Clumped, Uniform, Random
What is the carrying capacity of a population?
The largest population an environment’s resources can support at a time
An ecologist studying population size will note the number of a particular _______ being studied per kilometer 2
species
Humans and elephants, which have long lifespans and care for their young, reflect which type of survivorship curve?
Type I
A _______ is an organism that requires a very specific set of biotic and abiotic conditions and has a very narrow niche
specialist
A flock of birds would be an example of what type of population dispersion?
Clumped
What determines the carrying capacity of a population?
The most limited resource in the environment
What technique should be used for estimating population size for an animal population that moves?
mark and recapture
Birds and squirrels often have lifespans that are unaffected by age. Which type of surviorship is this?
Type II
A _________ species is able to live in a variety of biotic and abiotic conditions and has a very wide niche
generalist
A J shape curve shows which type of growth?
Exponential
Why could something like a natural disaster change the carrying capacity for a particular population?
resource reduction/reduce environment’s ability to support population
What technique should be used for estimating population size for a particular plant species?
random sampling with quadrat
Insects and many plant species have short lifespans with few surviving to adulthood. Which type of survivorship is this?
Type III
A raccoon is an example of which type of species?
Generalist
An S shape curve displays what type of growth?
Logistic
The new invasive species of Joro spider outcompeting native spiders for food is an example of which type of limiting factor?
density dependent
Which method of estimating population size involves multiplying the number of organisms in a small area to find the number in a larger area?
random sampling with quadrat
A curve showing a constant death rate at all ages, like those seen in some birds and lizards would display which type of survivorship?
Type II
A panda is an example of which type of species?
Specialist
1,260 deer live on an island of 840 square kilometers. What is the population density of the deer per square kilometer?
1.5 deer per square kilometer
A hurricane killing population of sheep is an example
density independent limiting factor
When using Mark and Recapture, why is it better to have more recaptures and counts of the organism you are studying?
It increases the accuracy of the population estimate.
Which type of survivorship involves a high degree of parental care?
Type I
Because they rely on a limited food source or habitat, these organisms often experience sharp population declines when ecosystems change.
Specialist