Review terms, read pages 274 and 275 and find these definitions for your notes. Population – Community – Photosynthesis – Cellular Respiration – Producer – Consumer –

Population : group of organisms of the same species living in the same area at the same time. Community : All the populations that live and interact with each other in a particular area. Photosynthesis : Converting light energy from the sun into chemical energy Cellular Respiration : Converting stored energy into usable energy. Producer : Any organism that makes it’s own food. Consumer : Any organism that gets it’s food by eating other organisms.

Chapter 7: Factors that Affect Sustainability UNIT 4 Chapter 7: Factors that Affect Sustainability Chapter 7: Factors that Affect Sustainability Consider the small population of Homo sapiens that grew to the population of about 7 000 000 000 today. Think about the milestones that occurred in human history as that small population grew. What are some way Homo sapiens have altered their environment? milestones: Topics can include: technological advances including the copper age, bronze age, iron age, and the Industrial Revolution and later better medical practices, purification of water, improved agricultural methods; the age of exploration including the rise and fall of the Roman Empire, the expansion of Europeans to Australia, the Caribbean, and North America.

7.1 Components of Sustainable Ecosystems UNIT 4 Chapter 7: Factors that Affect Sustainability Section 7.1 7.1 Components of Sustainable Ecosystems An ecosystem includes all the interacting parts of a biological community. Examples of ecosystems : include a pond, an urban park, a forest, a desert, an ocean, a spruce tree, a human body, and the entire Earth.

Food Chains and Webs Within any ecosystem there are food chains and webs. Food Chain – Shows how organisms get their energy (food). Food Web - A food web consists of all the food chains in a single ecosystem. Each living thing in an ecosystem is part of multiple food chains. Each food chain is one possible path that energy and nutrients may take as they move through the ecosystem. All of the interconnected and overlapping food chains in an ecosystem make up a food web.

Sustainable Ecosystems UNIT 4 Chapter 7: Factors that Affect Sustainability Section 7.1 Sustainable Ecosystems A sustainable ecosystem is an ecosystem that is capable of withstanding pressure and giving support to a variety of organisms. Ecosystems provide oxygen, water, food, and shelter for living things. Look at the photos below. What services do each ecosystem provide to living things? Identify a species that is dependent on more than one ecosystem. Sample answers: The log provides nutrients and living space for fungi. The pond provides food, water, oxygen, and living space for the ducks. The park provides food, oxygen, water, and living space for the squirrel. Two species that are dependent on more than one ecosystem are ruby-throated hummingbirds and the American eel.

Biotic and Abiotic Parts of Ecosystems UNIT 4 Chapter 7: Factors that Affect Sustainability Section 7.1 Biotic and Abiotic Parts of Ecosystems Biotic refers to the living parts of an ecosystem and the interactions among them. Abiotic refers to the non-living parts of an ecosystem. What are some biotic interactions that occur in ecosystems? What are six abiotic characteristics of an ecosystem? Biotic interactions include symbiosis, predation, and competition. Abiotic characteristics include water, oxygen, light, nutrients, temperature (heat), and soil.

Assignment 1.) You and your group will read p.g. 274 -277, 280-283. 2.) Choose an ecosystem 3.) On a poster paper draw and colour a diagram of your ecosystem. ( Ex.) P.g. 274, 287, do not copy these!) 4.) On an accompanying paper draw and colour an example of a food chain and food web from your ecosystem. 5.) From your diagram, make a list of biotic (10) and abiotic (5) parts and write a short description of each parts role (how it affects sustainability) in your ecosystem.

Poster (ecosystem, food chain and food web) : neat clean colourful / 20 Food chain and web accurate / 10 10 biotic and 5 abiotic parts listed / 15 Accurate descriptions of each / 15 Total ___ / 60

Different Geographic Locations Can Sustain Similar Ecosystems UNIT 4 Chapter 7: Factors that Affect Sustainability Section 7.1 Different Geographic Locations Can Sustain Similar Ecosystems Temperate deciduous forests are defined by a particular set of biotic and abiotic features. They are found in Nova Scotia, the eastern United States, western Europe, and eastern Asia, as shown in green on the map. Threats to the sustainability of temperate forests include acid precipitation and clearcutting. These threats put pressure on an ecosystem. What are the features of temperate deciduous forests? Temperate deciduous forests receive between 75 cm and 180 cm of precipitation per year and experience large seasonal changes, with temperature ranges from −30°C in winter to 30°C in summer.

Ecosystems are defined by a particular biotic and abiotic feature. Different geographic locations can sustain similar ecosystems. Biome - a biotic community defined by the plant and animal species living there and maintained by the climatic conditions of the region.

Major Biomes of the World - Grasslands Desert Rainforest Freshwater (ponds and lakes) Alpine (mountain) Tundra Coniferous Forest

P.g. 285 activity 7-1A You and your group will read and research an article on one of the ecosystems (biomes). You are your group will discuss the question in #2 and record them if you feel it is necessary. You and your group will then share your answers to #2 with the rest of the class. Please share any other interesting information you learn about your ecosystem. Be sure to point out on the map all the spots where your ecosystem exists in the world.

UNIT 4 Chapter 7: Factors that Affect Sustainability Section 7.1 Section 7.1 Review Sustainable ecosystems endure, and they sustain the organisms within them. Every ecosystem has biotic and abiotic parts. Biotic parts include living things and the interactions among them. Abiotic parts are the non-living parts of an ecosystem, such as water, light, nutrients, oxygen, and soil. Different geographic locations can sustain similar ecosystems. For example, there are temperate deciduous forests in Nova Scotia, eastern United States, western Europe, and eastern Asia. TO PREVIOUS SLIDE