Ecology Packet Chapters 19-22
Use your textbooks, pages 359-419, to answer the following questions.
What is Ecology(359)What is the most significant environmental change?
How many people were on the Earth in 1930________ and in
1999______?
When is the sixth mass extinction expected to occur(360)?
How many species will probably go extinct with in the next
century?
What is causing the Ozone layer to thin out(361)?
What is causing the increase in the greenhouse effect?
Describe the difference between the greenhouse effect and
global warming.
Levels of Ecological organization(362-363)
Define the following
OrganismPopulationCommunityEcosystemBiosphereEcology of organisms(368-369)
Describe the difference between an abiotic and a biotic
factor.
Write down several examples of biotic and abiotic factors
in your environment.
Biotic-
AbioticDefine the two following terms
HabitatTolerance CurveTrout can survive in water temperatures ranging from 45
degrees to 70 degrees. As the temperature approaches
either extreme, fewer trout survive. Trout survive the
best between the temperatures of 55-60. Use page 369 to
help you draw a tolerance curve for trout.
What is Acclimation and give an example of how it may occur
in humans(370).
Define the following terms and Give an example of each.
ConformerRegulatorWhat is the difference between dormancy and migration?
What is a Niche(371)Choose an animal found in Pennsylvania and describe some of
the important aspects of its niche.
Animal__________
What does it eat?
How does it help other organisms?
Where does it live?
How many offspring to they produce?
When during the day is it most active?
Fundamental Niche-
Realized Niche(371)Which of the following would be considered a generalist,
and which would be a specialist?
White tail deer
Panda bear
vs.
Why?
Populations Chapter 20
Describe the three population properties below(379-380)
Population sizePopulation densityDispersionDraw the three types of dispersion below(381)
What do survivorship curves show(382)?
Draw figure 20-4 below.
Circle which kind of survivorship curve the following
organisms have.
Humans and elephants
Type II
Type III
Type I
Birds
Type III
Type I
Type II
Fish and oysters
Type III
Type I
Type II
Define the following growth models and draw the diagram
that corresponds to it(384)
Exponential model-
Logistic Model-
What are limiting factors?
What is a carrying capacity?
Community Ecology Chapter 21
Describe what symbiosis is.
Give examples of two organisms that exhibit the following
forms of symbiosis together.
Predator Prey –
MimicryPlant Herbivore InteractionParasitismCompetitionMutualismCommensalismDescribe the following terms406-408
Primary successionSecondary succession-
Pioneer speciesClimax community
Ecosystems415-419
Draw a food chain below and label the producers with a P
and the consumers with a C.
Draw a picture of a food web below. Label the organisms
with a D for decomposers, a C for consumers, an H for
herbivores, and an O for Omnivores. Label each organism
with a 1,2,3,or 4 to indicate which trophic level it is on.