Ch Energy in Ecosystems pp

Slides:

Advertisements

Similar presentations

Energy Flow 3-2 Biology Flora.

Advertisements

ecology ecosystem abiotic

POWER FOR LIFE’S PROCESSES Energy Flow. Producers Sunlight is the primary source of energy source for life on earth. Plants, algae, and some bacteria.

Energy flow in Ecosystems

Principles of Ecology.

Energy Transfer in Ecosystems. Producers… Are autotrophs that convert energy entering the ecosystem so other organisms can use it –Ex. Plants, protists,

Energy transfer. Energy sources The sun provides almost all the energy to sustain life. Producers use Photosynthesis or Chemosythesis acquire the energy.

Notes 1 – Food Chains SCI 10 Ecology.

3-2 Energy Flow Page 67. A. Producers 1. Sunlight is the main source of energy for life on earth. 2. Energy gets transferred from producers, or autotrophs.

Ch. 18 sec. 3 Answers. 1. Why are autotrophs called producers?

Energy Flow In An Ecosystem Unit 11 - Ecology. Producers  The most important part of an ecosystem  Without a constant energy source, living things cannot.

Chapter 3: How Ecosystems Work Section 3.1: Energy Flow in Ecosystems.

Food Chain and Food Webs

Energy Flow: Autotrophs

18.2. All living things need energy to survive Everything we do requires energy Organisms are divided into three groups based on how they get their energy.

March 5, 2016 Energy Flow in Ecosystems. Homework Questions 1. What role does sunlight play in an ecosystem? 2. Could there be life on Earth without producers?

10-2 NOTES: ENERGY TRANSFER PP In an ecosystem energy flows: Sun  autotrophs  heterotrophs producers consumers.

How do organisms get energy?. Getting Energy Food chain – a sequence of connected producers and consumers Producer – an organism that makes its own food.

Producers/Autotrophs Manufacture their own food; they don’t eat. Most producers use photosynthesis (energy from the sun) Autotrophic bacteria use chemosynthesis.

Ecosystems. Ecosystem = all the organisms that live in a particular place, AND their nonliving and living environment Ecosystems are made and shaped by.

Energy in Ecosystems Note: Organisms interact in order to obtain energy and resources necessary to survive.

Food Chains/Food Webs. How Organisms Interact Autotrophs – Organisms that use energy from the sun or energy stored in chemical compounds. These types.

Food Chains, Webs, and Pyramids. Ecosystems are divided into different sections called trophic levels Each trophic level represents a transfer of energy.

Food Chains, Food Webs, and the Transfer of Energy

Ecosystems Part 2 Trophic Levels.

Energy Flow Through an Ecosystem

Energy in Ecosystems Note: Organisms interact in order to obtain energy and resources necessary to survive.

Flow of Energy in an Ecosystem

Energy in Ecosystems Note: Organisms interact in order to obtain energy and resources necessary to survive.

Energy Flow In order to live out its life, an organism must obtain energy through some means Sunlight is the main source of energy for life on Earth.

Energy Transfer in Ecosystems

Energy Flow Through an Ecosystem

Almost all energy on Earth comes from the sun.

Energy Flow: Autotrophs

Energy Transfer in Ecosystems

Energy in Ecosystems Food Chains and Webs

Unit 2: Lesson 2 Food Chains, Food Webs, and energy pyramids

Energy Flow in Ecosystems

Chapter 10 Ecosystems p

Almost all energy on Earth comes from the sun.

Food Chains 8th Grade Science

Chapter 2 Principles of Ecology

Flow of Energy (2.2) State Standard

4.2 Energy Flow in Ecosystems

What happens to energy as you go up a food chain?

3-2 Energy Flow.

Ch & 13.4 Producers and Consumers

What is Ecology?.

Starter Name 3 abiotic factors and 3 biotic factors in the ecosystem on the right. What makes up an ecosystem?

Day 2 SCI 10 Ecology.

Energy in Ecosystems Food Chains and Webs

Primary productivity- the rate at which producers make energy (from sunlight) Producers/Autotrophs – organisms that make their own food by capturing sunlight.

Energy in Ecosystems Food Chains and Webs

EQ: How is energy transferred in an ecosystem?

ENERGY FLOW SB4b.

Energy in Ecosystems Food Chains and Webs

Energy in Ecosystems Organisms interact in order to obtain energy and resources necessary to survive.

Energy Transfer in Ecosystems

Feb 5, 2010 How is predation different from parasitism?

3-2 Energy Flow.

Energy Flow In Ecosystems

Ecology Vocabulary: Please define the following words.

Energy in the ecosystem

Presentation transcript:

Ch. 22.1 Energy in Ecosystems pp.415-419 Producers = autotrophs; they produce their own food Auto= self, troph=feeding 1st energy level Photosynthesis = making food using light energy Plants, most common Energy from the sun chemosythesis = making food using chemical energy Bacteria, rare

Ch. 22.1 Energy in Ecosystems pp.415-419 Biomass = the amount (mass) of biological material in an ecosystem Everything that is eaten for energy is or was living E is measured in units of Calories Net primary production = the amount of E that can move on to the second trophic level Net = what is left over E = Energy

Ch. 22.1 Energy in Ecosystems pp.415-419 Consumers = eaters, they consume other organisms for E Herbivores= eat producers Carnivores= eat consumers Omnivores= eat both Detritivores= eat dead things (clean things up) Vultures, maggots Decomposers = break down dead things Fungi turning a stump to soil

Ch. 22.1 Energy in Ecosystems pp.415-419 E flows through the ecosystem: Average of 10% transfer from one trophic level to the next Almost always less biomass up the food chain Calculate by dividing biomass by the previous level biomass 𝑝𝑟𝑖𝑚𝑎𝑟𝑦 𝑐𝑜𝑛𝑠𝑢𝑚𝑒𝑟𝑠 𝑝𝑟𝑖𝑚𝑎𝑟𝑦 𝑝𝑟𝑜𝑑𝑢𝑐𝑒𝑟𝑠 = 1000 𝐶 10000 𝐶 = 0.1 = 10%

Ch. 22.1 Energy in Ecosystems pp.415-419 Food chain = single E path Linear grass> rabbit> coyote Usually all E starts from Sun Food web = interactions of all food chains in an ecosystem

Ch. 22.1 Energy in Ecosystems pp.415-419 If you take out any one level of the trophic chain it can have affects on all the other levels: …and even the abiotic ecosystem. Wolf reintroduction in Yellowstone National Park http://www.youtube.com/watch?v=ysa5OBhXz-Q