Ecology & Environment Chapter 2

Vocabulary Scavenger Decomposer Food chain Food web Energy pyramid

What are the energy roles in an ecosystem? Organisms in an ecosystem are either: Producer Consumer Decomposer

Producers Organisms that makes its own food Source of all food in an ecosystem Plants, algae, bacteria  photosynthesis

Consumers Obtains energy by eating other organisms Herbivores = only eat plants Carnivores = only eat animals Omnivores = eat plants and animals Scavenger = feeds on dead organisms

Consumers – Which is which? Label each picture as a herbivore, carnivore, omnivore or scavenger

Decomposers Break down biotic wastes and dead organisms They return raw materials back to the ecosystem They recycle energy! Mushrooms, bacteria, mold

Pair Share Review Write one sentence with your pair share partner; finish this sentence: The sun is the main source of energy for producers, consumers and decomposers because ________________________________ _____________________________________________________________________________________________________________________.

How does energy move through an ecosystem? Energy moves through an ecosystem when one organisms eats another!

Food Chains Series of events where one organisms eats another. Lake Algae -> Bass Fish -> Eagle Put an example of a food chain in your notes. Connect grass to you!

Food Webs Food chain shows one path of energy Food web shows all the possible paths energy can move *Virtual lab tomorrow!

Energy Pyramids Diagram that shows how energy moves from lower to higher levels *the most energy is available at the producer level of the pyramid, as energy moves up the pyramid less energy is available

Pair Share Review With your pair share partner, complete the Energy Flow in Ecosystems worksheet. 10 minutes! Will correct when finished!! No copying! Work together!!

Vocabulary Biome Climate Desert

Vocabulary Rainforest Emergent layer Canopy Understory

Vocabulary Grassland Savanna Deciduous tree

What are the six major biomes? Biome – group of ecosystems with similar climates and organisms Desert Rainforest Grassland Deciduous forest Boreal forest Tundra

Climate Climate = average temp & amount of precipitation *Climate determines a biome by limiting the type of plants that can grow

1. Desert Biomes

2. Rain Forest Biomes

3. Grassland Biomes

Prepwork Pages 63-66 due tomorrow!

4. Deciduous Forest Biomes

5. Boreal Forest Biomes

6. Tundra Biomes