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Ecology Unit

Ecology Unit. Vocabulary. Food web and food chain. Food chain : A series of events in which one organism eats another. Food web : The pattern of overlapping food chains in an ecosystem. In a food web arrows ( ) represent the direction and flow of energy. Relationships.

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Ecology Unit

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  1. Ecology Unit Vocabulary

  2. Food web and food chain • Food chain: A series of events in which one organism eats another. • Food web: The pattern of overlapping food chains in an ecosystem. • In a food web arrows ( ) represent the direction and flow of energy.

  3. Relationships • Producer: An organism that can make its own food. (plants/photosynthesis) • Consumer: An organism that obtains energy by feeding on another organism. (plants and animals) • Decomposer: An organism that breaks down wastes and dead organisms.

  4. Who eats what • Herbivore: A consumer that eats only plants (always a 1st level consumer) • Carnivores: Consumer that eats only animals. (always a 2nd level consumer or above) • Omnivore: Consumer that eats plants and animals. (1st and 2nd level consumer or above) • Scavenger: A carnivore that feeds on dead animals.

  5. Fencerow Habitat Food web Coyote 2 Cotton tail Rabbit 1 Red Tail Hawk 2 Red Squirrel 1 Vole 1 Quail 1 Oak tree Producer Bluestem Producer 1st and 2nd Level Consumers are represented by the numbers 1&2

  6. Food web Barred owl Norway rat 2nd,3rd,4th,5th level consumer 2nd,3rd level consumer Vole caterpillar 1st,2nd level consumer White tailed deer Black snake 1st level consumer 2nd,3rd,4th level consumer daisies 1st level consumer Prairie grass producer producer

  7. Interaction within Ecosystems • Species- a group of living things that are so closely related that they can reproduce and have offspring that can also reproduce. • Population- a group of organisms of the same species that live in the same area. • Community- all the populations that live and interact with each other in a particular place.

  8. Levels of the environment from smallest to largest. • Organism • Population • Community • Ecosystem • Biome

  9. Habitat- the natural environment in which a living thing gets all that it needs to live. • Niche- the role a living thing plays in its habitat.

  10. 3 Ways Organisms Interact in an Ecosystem. • Competition: The struggle between organisms for the limited resources in a habitat. • Predation: An interaction in which one organism kills and eats another. Predator- an animal that hunts other animals and eats them. Prey- an animal that other animals hunt and eat.

  11. Symbiosis: A close relationship between species that benefits at least one of the species. (3 types) Mutualism: A relationship between two species in which both species benefit. Commensalism: A relationship between two species in which one species benefits and the other is neither helped nor harmed. Parasitism: A relationship between two species in which one species benefits and the other species is harmed.

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