Section 13-1 & 13-2 Introducing Ecology
Section 13-1 & 13-2“IntroducingEcology”
13.1 Ecologists Study Relationships / 13.2 Biotic & AbioticObjectivesStudents will be able to:1.Summarize the levels of organizationthat ecologists study by completing agraphic organizer and writing a shortparagraph in their own words.
13.1 Ecologists Study Relationships / 13.2 Biotic & AbioticSection 13.1 KEY CONCEPT:Ecology is the study of the relationshipsamong organisms and their environment.
Ecology is the study of theinteractions among living things,and between living things andtheir surroundings.
An organism is anindividual living thing(such as an alligator)OrganismOrganism
A population is a groupof the same speciesthat lives in one area.PopulationPopulationOrganismOrganism
13.1 Ecologists Study Relationships / 13.2 Biotic & Abiotic A community is a groupof different species thatlive together in one mOrganism
13.1 Ecologists Study Relationships / 13.2 Biotic & AbioticWhat level of organizationdescribes a flock of pigeons in apark?Population
An ecosystem includes all ofthe organisms as well as theother nonliving things in agiven area. (such as climate, Ecosystemsoil, water, ionOrganismOrganism
13.1 Ecologists Study Relationships / 13.2 Biotic & AbioticCan you list the nonliving thingsin this ecosystem?
A biome is a major regional or globalcommunity of organismscharacterized by the climateconditions and plant communitiesthat thrive ulationPopulationOrganismOrganism
Fill in the power notes 13.1 Levels of ityPopulationPopulationOrganismOrganism
13.1 Ecologists Study Relationships / 13.2 Biotic & AbioticBIOMES
13.1 Ecologists Study Relationships / 13.2 Biotic & e
13.1 Ecologists Study Relationships / 13.2 Biotic & AbioticSummarize the levels of organizationby completing the graphic organizerusing your Power Notes.
Fill in the power notes 13.1 Levels of OrganizationOrganismPopulationPage 2EcosystemCommunityBiome
13.1 Ecologists Study Relationships / 13.2 Biotic & AbioticPractical ApplicationFollow Mr. Benitez.
13.1 Ecologists Study Relationships / 13.2 Biotic & AbioticSection 13.2 KEY CONCEPT:Every ecosystem includesboth living and nonlivingfactors.
13.1 Ecologists Study Relationships / 13.2 Biotic & AbioticObjectivesStudents will be able to:1.Identify biotic and abiotic factors in an ecosystem bycompleting a graphic organizer and writing a shortparagraph in their own words.2.Describe how a change in one factor in an ecosystemcan affect others by completing a graphic organizer andwriting a short paragraph in their own words.
Biotic factors are living things. Remember, BIO means LIFE! a
Abiotic factors are nonliving things. Remember, “A” means NOT (likeAsymmetrical means not sture– Water, rain, clouds–soil
Changing one factor in an ecosystemcan affect many other factors. A keystone species is a species thathas an unusually large effect on itsecosystem.KeystoneIf you moved this stone thewhole arch would fall down
13.1 Ecologists Study Relationships / 13.2 Biotic & AbioticA keystone species is a plant or animal that plays aunique and crucial role in the way an ecosystemfunctions.Without keystone species, the ecosystem would bedramatically different or cease to exist altogether.Example: Wolves: Being a top predator, wolves areimportant in many habitats. Wolves keep deerpopulations in check and too many deer will eatsmall trees, which leads to fewer trees. In turn, therewould be fewer birds and beavers and the wholeecosystem would change.
Keystone species form andmaintain a complex web oflife.creation ofwetlandecosystemincreased waterfowlPopulationkeystone speciesincreasedfishpopulationnestingsites forbirds
the variety ofliving things inan ecosystema species that plays acritical role inmaintaining thestructure of anecological community
Listen, look fill in as we go – there will be a checkyour answer slide at end of sectionBiotic(living sturetemperaturesoil
13.1 Ecologists Study Relationships / 13.2 Biotic & Abiotic
Listen and fill in Research Methodsas we go thereincludewill be a checkyour answersplace at the end.
Listen, look fill in as we go – there will be a checkyour answer slide at end of section
13.1 Ecologists Study Relationships / 13.2 Biotic & Abiotic A keystone species is a plant or animal that plays a unique and crucial role in the way an ecosystem functions. Without keystone species, the ecosystem woul
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