Ecology
individual, species, populations, community, ecosystem, biosphere
What is an example of a population?
(Name any group of organisms that can interbreed in an area at a given time) Examples: Siberian tigers, rabbits, dogs, wolves, daffodils, bacteria
which type of population growth is an s-curve and has carrying capacity?
logistic growth
r-selected species have what type of fertility rate?
high fertility rate
Rock, soil, air, water are these type of factors
abiotic factors
The study of ecosystems is known as....
Ecology
A species that reproduces very quickly with no limiting factors is considered which type of growth? Exponential or Logistic?
Exponential growth
K-selected species are large animals like elephants and humans. True or false?
True
animals, plants, bacteria, dead trees, logs are these types of factors
biotic factors
Which level of organizations is the least complex?
Individual
Define population dispersion
The way the population is spread out or arranged in a certain area. Uniform, clumped, or random dispersion
The growth at a fixed rate and no limiting factors. J-curve. What type of growth is this?
Exponential
Type 1 survivorship curve has high survival at young ages. True or False
True
factors that restrict population growth
limiting factors
A population that has more individuals exiting the population will have what type of population growth? Stable, positive, or negative?
Negative
What are the 3 types of dispersion?
Uniform, random, clumped
What is the correct calculation equation for population growth?
(birth rate +immigration)- (death rate + emigration)
(individuals entering population) - (individuals exiting population)
Type 3 survivorship curve has high death rate at adult ages. True or false
False.
natural disasters such as tornadoes, hurricanes, floods, and fires can all be determined as what type of factors?
Density Independent factors
Frogs and amphibians have a type 3 survivorship curve. Will they have more offspring die at a young age or will many individuals die at adulthood?
Type 3 will die most at a very young age.
In age structure diagrams, the males are on which side of the graph? The females are on which side of the graph?
Males on the left and females on the right
Compare logistic growth model to exponential growth model.
Exponential growth grows rapidly and no carrying capacity. No limiting factors.
Logistic growth grows rapidly then slows down due to limiting factors. Has carrying capacity
lower number of offspring during lifetime and high parental care is considered what type of species? r-selected or K-selected
K-selected species
Disease, predators, food and water supply are all considered what type of factors?
density dependent factors