Presentation on theme: "Unit 2: ECOLOGY!!!!. Ecosystems: Everything is Connected Dead leaf falls from a tree into a stream Bacteria and fungi start to eat the leaf Insects will."— Presentation transcript:
Ecosystems: Everything is Connected Dead leaf falls from a tree into a stream Bacteria and fungi start to eat the leaf Insects will start to physically break down the leaf Motion of stream will also break down the leaf Caddisflies will catch and eat the pieces
Algae and river plants will also eat the leaf Predator insects eat insects that ate the leaf Birds will eat the predator insects While nesting in trees, these birds excrete droppings that provide nutrients that can be used by the tree to form a new leaf.
What is an Ecosystem? Def: all the organisms living in an area together with their physical environment. Examples An Oak forest in NE Pennsylvania A coral reef in the Pacific Ocean
Def: The variety of living things in an ecosystem
Types of Biodiversity High Biodiversity An ecosystem that has a large variety of plants and animals An ecosystem that has a large variety of plants and animals Think: Different Think: Different Low Biodiversity An ecosystem that has very few different plants and animals Think: Same
High or Low Biodiversity? Over 1,00 species of insects live in just one kind of rainforest tree, and the rainforest contains over 250,000 different kinds of plants
High or Low Biodiversity Many plants and animals have difficulty surviving in the scorching heat of the desert
High or Low Biodiversity Wetlands support a wide variety of species. Plant life flourishes in the wetlands
Drill Time Complete Practice #6 and Homework #6 Low volume group work Time: 4 minutes
Bill Nye the Science Guy A short video (23 minutes) on biodiversity Fill out video worksheet slip Don’t forget your NAME!!