Ecosystems By: ___________

Table of Contents Word Bank pg. 1 What I Know pg. 6 Ecosystem Example – Pond pg. 21 Water Food Chain pg. 24 Land Food Chain pg. 25

Word Bank 1. biotic factor – 2. abiotic factor – 3. niche – 4. ecosystem -

Word Bank 2 5. ecology 6. competition 7. organism – 8. habitat -

Word Bank 9. predator – an animal that hunts other animals for food. 3 9. predator – an animal that hunts other animals for food. 10. prey – an animal that is hunted by other animals and is relied on for food. 11. population – all of the members of a species in an ecosystem (all tigers in an ecosystem = tiger population) 12. parasite – an organism that lives, grows, and feeds on a host organism. ex: flea, tick

Word Bank 4 13. producer – an organism that makes its own food and gets nrg from sunlight. 14. consumer – an organism that cannot make its own food; gets nrg from other organisms 15. decomposer – organisms that break down dead or decaying organisms 16. herbivore – a consumer who only eats plants (only eat producers) 17. carnivore – a consumer that only eats meat (other consumers) 18. omnivore – a consumer who eats both meat and plants (both producers and consumers)

Word Bank 5 17.

What I Know Ecosystems are made up of both abiotic and biotic factors. 6 Ecosystems are made up of both abiotic and biotic factors. biotic – plants, bacteria, animals abiotic – rocks, water, air, sun, soil Different ecosystems have different kinds of habitats. Plants and animals compete with their own kind and other plants and animals for resources (food, water, habitat, mate, sunlight)

What I Know Ecosystems are always changing. 6 Ecosystems are always changing. Ecosystems can be changed by – Natural Events volcanoes Hurricanes Flood (too much rain) Drought (not enough rain ; too dry) Living Things locusts (specific grasshoppers) – bad alligator holes - good

What I Know 6 Organisms can change their environment to meet their needs. alligator – digs a hole to help it survive during a drought. beaver – build dams to block enough water to form a pool; Here they build lodges; Lodges allow them protection and a place to raise their young.

What I Know Does a beaver help or harm the environment? He does both. 6 Does a beaver help or harm the environment? He does both. He helps by – - providing a habitat for plants and animals to grow in the pool. - by cutting down trees, he gives small plants room to grow. He harms by- - Causing land to flood with his dam. - drowning small plants and animals in the flooded pool

What I Know Predators reduce the number of prey in an ecosystem. 11 Predators reduce the number of prey in an ecosystem. Predators, diseases, and parasites can decrease the size of a population. Exotic species can take over an area. ‘ They can outcompete (win all battles) for food, because they have less predators.

What I Know All organisms in an ecosystem need nrg to live. 11 All organisms in an ecosystem need nrg to live. They depend on one another for nrg and survival. Producers get nrg from the sun. They use this nrg to make food for the plant. Example: plants

What I Know 11 Consumers get nrg by eating producers and other live consumers. 3 kinds of consumers: 1. herbivores – eat only plants Example: 2. carnivores – eat only meat (animals) 3. omnivores – eat both plants and meat (animals)

What I Know 11 Decomposers get nrg from breaking down dead and decaying organisms. They also return needed nutrients to the soil. Example: worms, bacteria, fungi (mushrooms) Decomposers (draw a small picture here) Consumers (draw small picture here) Producers (draw small picture here

What I Know Energy for all food chains starts with the SUN. 11 Energy for all food chains starts with the SUN. Energy in a food chain moves in one direction. (nrg moves toward the organism that is EATING) Arrows represent the nrg flow in a food chain.

What I Know 12 Herbivores are 1st level consumers. They are the first organisms to eat. Carnivores can be 2nd level consumers. They can also be 3rd level consumers. Omnivores can be 1st leve), 2nd level or 3rd level consumers.

What I Know 13

What I Know 14 There must be more prey than predators to have a successful food chain.

What I Know 15 Energy Pyramid nrg

What I Know 16 Food webs give food chains more options for survival when resources for food run low. Populations in the same area compete with each other for resources like food, shelter and water. Example: Competition with own kind 1 fox against another fox for rabbit. Example: Competition with other populations. sea cucumber against sea urchin against mussel for kelp.

What I Know 17 Organisms have 2 kinds of adaptations 1. structural – AN ADAPTATION THAT ARE ADJUSTMENTS TO THE INTERNAL (INSIDE) OR EXTERNAL (OUTSIDE) OF AN ORGANISM. examples: thick waxy cuticle of cacti, webbed feet of ducks, talons of falcons 2. behavioral – AN ADAPTATION THAT ARE ADJUSTMENTS TO AN ANIMALS BEHAVIOR examples: elephant holding on to mom’s tail, wolves and fish travel in packs, any symbiotic relationship (clownfish / anemone, rhino / little bird), sea otter’s rock tummy Other adaptations include: 1. Nocturnal feeding time 2. mimicry 3. camouflage

Word Bank #2 18 20.

Word Bank #2 19 24.

Word Bank #2 20 29

Draw a food chain that would belong in each particular ecosystem. NO DOS TODAY!! TODAY’S ASSIGNMENT: Make a new page in your “Table of Contents” for the various ecosystems. Each ecosystem should have its own page. (Pond, Ocean, Marsh / Swamp, Forest, and Meadow) Example: #3 would be “Pond Ecosystem” #4 would be “Ocean Ecosystem” and so on… Draw a food chain that would belong in each particular ecosystem. Label each organism as a producer, consumer, or decomposer Label each organism as an herbivore, carnivore, or omnivore. Label each organism as 1st (primary), 2nd (secondary), or 3rd (tertiary) level consumer

Pond Ecosystem In my ecosystem I need a food chain that has: 21 In my ecosystem I need a food chain that has: All Organisms drawn. All organisms labeled 1. Consumer? Producer? or decomposer? 2. Herbivore? Omnivore? Carnivore? Coloring is bonus for this ecosystem.

Water Food Chain In my food chain I need: All Organisms drawn. 24 In my food chain I need: All Organisms drawn. All organisms labeled 1. Consumer?(also #2) Producer? or decomposer? 2. Herbivore? Omnivore? Carnivore? Coloring is bonus for this food chain.

Land Food Chain In my food chain I need: All Organisms drawn. 25 In my food chain I need: All Organisms drawn. All organisms labeled 1. Consumer?(also #2) Producer? or decomposer? 2. Herbivore? Omnivore? Carnivore? Coloring is bonus for this food chain

Louisiana Ecosystem In my ecosystem I need: All Organisms drawn. 26 In my ecosystem I need: All Organisms drawn. All organisms labeled 1. Consumer? Producer? or decomposer? 2. 1st level (primary) consumer? 2nd level (secondary) consumer? Or 3rd level (tertiary) consumer? 3. Herbivore? Omnivore? Carnivore? Coloring is bonus for this ecosystem.

Land Food Web Draw the picture from pg. 238 – 239 Choose to COLOR OR LABEL Both is BONUS

Water Food Web Draw the picture from pg. 239 or 240 Choose to COLOR OR LABEL Both is BONUS