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Ecology The Lion King - The Circle Of Life (HD).mp4.

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Presentation on theme: "Ecology The Lion King - The Circle Of Life (HD).mp4."— Presentation transcript:

1 Ecology The Lion King - The Circle Of Life (HD).mp4

2 Ecology The study of the relationships in an ecosystem.

3 Ecology The study of the relationships in an ecosystem. So... what's an ecosystem?

4 Biological Levels

5 Organism

6 Biological Levels Organism Population

7 Biological Levels Organism Population Community

8 Biological Levels Organism Population Community Ecosystem

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10 Biological Levels Organism Population Community Ecosystem: Biome

11 Biological Levels Organism Population Community Ecosystem: Biome - a large ecosystem with characteristic climate and organism types

12 Biomes Forest Desert Grassland Tundra Ocean Freshwater lake and pond River and stream

13 Aquatic clip Desert clip Forest clip Grassland clip Tundra clip

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16 Food Chain

17 Food Web

18 Ecological Pyramid

19 Stump the teacher...

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21 Food chain: a diagram with arrows showing one route of energy flow through an ecosystem. Food web: a diagram with arrows showing all the routes of energy flow. Ecological pyramid: a schematic illustrating either the biomass or energy content of the trophic levels in an ecosystem.

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24 Autotrophs: produce their own nourishment Producers: plants Heterotrophs: must eat other organisms for nourishment Primary consumers: herbivores (animals that eat plants) Secondary, tertiary, etc. consumers: carnivores: animals that eat animals omnivores: eat both plants and animals scavengers: eat already dead things Decomposers: bacteria and fungi that break down dead organic matter

25 Niche: a way of life of a population and how it relates to the environment. a populations "role" in an environment

26 Relationships in Ecosystems: Predator-prey: one kills and eats the other Competition: they use the same resource Symbiosis: they "live together" mutualism: both benefit parasitism: one benefits, one is harmed commensulism: one benefits, the other is unaffected.

27 Lichen (LI-ken)

28 Population Growth Curves Time Population

29 Population Growth Curves

30 boom and bust

31 Population Growth Curves boom and bust exponential (J-shaped)

32 Population Growth Curves boom and bust exponential (J-shaped) logistic (S-shaped)

33 Exponential Logistic

34 Population Regulation What are some factors that affect population size?

35 Population Regulation In Nature:

36 Population Regulation In Nature: Density dependent:

37 Population Regulation In Nature: Density dependent: affect large populations more than small populations.

38 Population Regulation In Nature: Density dependent: affect large populations more than small populations. Eg. food, space, disease, predation,...

39 Population Regulation In Nature: Density dependent: affect large populations more than small populations. Eg. food, space, disease, predation,... Density independent:

40 Population Regulation In Nature: Density dependent: affect large populations more than small populations. Eg. food, space, disease, predation,... Density independent: effect is unrelated to population size

41 Population Regulation In Nature: Density dependent: affect large populations more than small populations. Eg. food, space, disease, predation,... Density independent: affect is unrelated to population size Eg. natural disasters, weather events.

42 Population Regulation In Nature: Density dependent: affect large populations more than small populations. Eg. food, space, disease, predation,... Density independent: affect is unrelated to population size Eg. natural disasters, weather events.

43 Succession: the replacement of one population or community with another Primary succession: the first organisms (pioneer species) move into a vacant habitat. Secondary succession: the replacement of an established population or community Climax community: a community that can perpetuate itself for a long time.

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48 How Wolves Change Rivers.mp4

49 Bingo terms Abiotic factor autotroph biomass biome biotic factor carnivore community consumer decomposer niche omnivore organism population primary succession producer scavenger secondary succession species trophic level ecological pyramid ecology ecosystem food chain food web habitat herbivore heterotroph lichen

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51 Attachments The Lion King - The Circle Of Life (HD).mp4 Tundra.asf Temperate_Grasslands.asf Tropical_Rain_Forest.asf Deserts.asf Aquatic_Biomes.asf How Wolves Change Rivers.mp4


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