ecology ecosystems #1 2
DESCRIPTION
TRANSCRIPT
EcologyEcologyIntroductions Introductions
and and EcosystemsEcosystems
Biotic vs AbioticBiotic vs Abiotic
Biotic Factors
ECOSYSTEM
Abiotic Factors
Abiotic and Biotic Factors
Levels of Levels of OrganizationOrganization
BiomesBiomesLarge Large
geographicageographical areas with l areas with a particular a particular
type of type of vegetation vegetation
& temp& temp
Tropical dry forest
Tropical savanna Temperate woodlandand shrubland
Desert
Temperate grassland
Boreal forest(Taiga)
Northwesternconiferous forest
Temperate forest
Mountains andice caps
TundraTropical rain forest
Ecosystems ~ Ecosystems ~ Living and nonliviing Living and nonliviing
organismsorganisms
EcosystemsEcosystems
EcosystemsEcosystems
CommunitiesCommunities
Does not include Abiotic Does not include Abiotic FactorsFactors
Populations~ Populations~ One type of One type of organismorganism
IndividualIndividualThatThat’’s all for nows all for now
EcologyEcologyPart IIPart II
EcosystemsEcosystems
Niche – role in the Niche – role in the environmentenvironment
Bay-Breasted WarblerFeeds in the middlepart of the tree
Yellow-Rumped WarblerFeeds in the lower part of the tree andat the bases of the middle branches
Cape May WarblerFeeds at the tips of branchesnear the top of the tree
Spruce tree
Habitat – address of an Habitat – address of an organismorganism
Relationships Relationships in the in the
EnvironmentEnvironmentSymbiosisSymbiosis - - When 2 species live When 2 species live
closely togetherclosely together
Relationships in Relationships in the the
EnvironmentEnvironment
Predator - Predator - PreyPrey
Lynx and Snowshoe HareLynx and Snowshoe Hare
Parasitism Parasitism ( + , - )( + , - )
parasitismparasitism
ParasitismParasitism
Commensalism Commensalism ( + , ( + , o )o )
Burdock weed (pickers)
CommensalismCommensalism
CommensalismCommensalism
Mutualism Mutualism ( + , + )( + , + )
MutualismMutualism
MutualismMutualism
MutualismMutualism
More More to to
ComeComePart Part IIIIII
Food Food ChaiChai
nn
A pathway for matter and A pathway for matter and energy to pass from one energy to pass from one
organism to anotherorganism to anotherOrganisms eat and are Organisms eat and are
eateneaten
Food Food Chains Chains SeldoSeldo
m m stand stand AloneAlone
FooFood d
WebWeba a
network network of of
feeding feeding interactiointeractio
ns of ns of various various
organismorganisms in an s in an
ecosysteecosystemm
MarineMarine(ocean)(ocean)
Food Food WebWeb
Food WebsFood Webs
More diverse More diverse ecosystems bring ecosystems bring more stability to more stability to an Ecosysteman Ecosystem
Biodiversity is Biodiversity is ImportantImportant
Extinction is a Extinction is a ProblemProblem
endend