1 Energy Flow in an Ecosystem Three hundred trout are needed to support one man for a year. The trout, in turn, must consume 90,000 frogs, that must consume.

Slides:

Advertisements

Similar presentations

Trophic Levels, Energy transfer and Pyramids. Vocabulary  Trophic Levels – is the position an organism occupies in a food chain. It refers to food or.

Advertisements

LECTURE NO 4  The general term "Production" is the creation of new organic matter. The process of photosynthesis converts light energy into energy stored.

Biomass Pyramid/ Laws of Conservation of Energy. Why do the laws of Thermodynamics matter? The laws of thermodynamics are important unifying principles.

Food Chains & Thermodynamics. Goal To develop an understanding of the interdependence of all organisms and the need for conserving natural resources.

DN: Where does all of the energy in an ecosystem come from? Explain.

ECOLOGY continued… Food Chain – A chain including the organisms and their food source. Grass grasshopper bird.

Ecosystems and Energy 1 st law of thermodynamics- energy cannot be created or destroyed 2 nd law of thermodynamics- when energy is converted from one form.

Ecology …the study of …….. OUR house…..

Ecological Pyramids. Energy Loss in Ecosystems I  Energy flow through an ecosystem is based on the laws of thermodynamics (physics)   First Law: Energy.

Productivity and Efficiency in Biosystem inputoutput productivityEfficiency Designed Control.

PYRAMIDS EQ: How is energy calculated through a food chain?

1) According to this picture, when the owl eats the bird, it is considered _______.

ENERGY IN ECOSYSTEMS ENERGY. Energy is transferred from one form to another In any energy conversion, some energy is lost. E goes from high to low quality.

Ecosystems and Conservation Biology Chapter 36 Part 2.

ECOLOGICAL PYRAMIDS.

Energy Flow: Feeding Relationships

MRS. SANDY GÓMEZ Energy Flow in Ecosystems. Are the feeding relationships between organisms. A Food Chain is:  transfer of food energy from its source.

Showing energy transfer among organisms (biosphere!)

ENERGY FLOW IN ECOSYSTEM How does energy flow in an ecosystem? How does energy flow in an ecosystem? What is a trophic level? What is a trophic level?

# 11)Examine the energy flow and loss through the trophic levels of an ecosystem given an illustration of an energy pyramid.

Ecology The study of interactions of living things and their environments Abiotic factors – nonliving things in the environment Biotic factors – living.

Food Webs & Energy Pyramids

Flow of Energy Through The BIOSPHERE. Importance of Solar Energy l All Organisms require energy for metabolism l The original source of energy in the.

Feeding Relationships

Food Chains Food Webs Energy Pyramids

1.What trophic level is directly responsible for the energy obtained by the primary consumer? 2.Which of the following illustrates why not all of the energy.

How does energy move through an ecosystem? Energy moves from one organisms to another when it is eaten.

Ecological Pyramids Chapter 2 Section 2b

Energy and the Ecosystem. Questions for Today: How does energy flow in Ecosystems? What happens to usable Energy as it travels through a food chain or.

 Energy Transfer Within Ecosystems APES~Mr. Plowman.

 link in a food chain  represent a feeding step in the transfer of energy and matter in an ecosystem.

 Necessary materials: PowerPoint Guide Teacher may wish to hand out these note guides:  Carbon Cycle Guided Discussion  Phosphorous Cycle Guided Discussion.

Energy pyramid.

ECOLOGICAL PYRAMIDS  A diagram that shows relative amounts of energy or matter within each trophic level.  3 Types: –Energy Pyramid –Biomass Pyramid.

Sponge: Set up Cornell Notes on pg. 39 Topic: 4.2 Energy Flow-Pyramids Essential Question: Why are energy transformations never 100% efficient? Explain.

Energy Flow in an Ecosystem

Ecosystems. Organism Population Community Ecosystem An ecosystem includes all of the organisms as well as the nonliving things in a given area.

Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings “All flesh is grass” -Isaiah 40:6 ECOLOGY.

Food Chains, Food Webs, and Ecological Pyramids. A food chain is the simplest path that energy takes through an ecosystem. Energy enters from the sun.

Ecosystem Organization Organism = a living thing Population = a group of organisms living in the same area Community = a group of species that live in.

Energy in Ecology How is energy transferred?. Energy  All ecosystems must transfer energy.  Energy flows in ONE DIRECTION  Heat Energy (Sun)  changes.

Energy Flow Through Ecosystems. Ecosystem and Energy Roles Ecosystem: all living & non-living things that interact in an environment Energy Role in an.

MA 6.3 A food web identifies producers, consumers, and decomposers, and explains the transfer of energy through trophic levels. Relationships among organisms.

VI. Energy in the Ecosystem A. Energy and Food 1. Biomass- the total amount of organic matter at a trophic level 2. Majority of world’s biomass comes.

Ecosystems, Energy, Recycling

Chapter 13.6 Pyramid Models

Lecture 2: Energy Flow in Ecosystems

Title: Biology 5/1/07 Objectives: Class Topics

Title: Biology 4/30/07 Objectives: Class Topics

Energy Flow in Ecosystems

Energy Flow Within an Ecosystem

3 Ecology Pyramids Ecological pyramids represent different tophic levels in ecosystems. Three ecology pyramids include: numbers, energy, and biomass.

Unit 8 Notes: Feeding Relationships

3.3: Energy Flow in Ecosystems

Trophic Levels, Energy transfer and Pyramids

Energy in the Ecosystem

Energy Flow in Ecosystems

Trophic Levels, Energy transfer and Pyramids

Flow of Energy and Matter

Ecology Biotic vs. Abiotic Relationship All Regions of Biosphere

Topic 4 Ecology 4.2 Energy Flow.

Ecological Pyramids WE WILL: YOU WILL:.

Feeding Relationships

Energy Flow Through Ecosystems

Food Webs We will examine the components of an ecosystem in order to analyze and construct food webs.

ECOLOGICAL PYRAMIDS A diagram that shows relative amounts of energy or matter within each trophic level. 3 Types: Energy Pyramid Biomass Pyramid Pyramid.

Ecological Pyramids Diagrams that show relationships between organisms in an ecosystem Three types of ecological pyramids: Numbers Biomass Energy Show.

Presentation transcript:

1 Energy Flow in an Ecosystem Three hundred trout are needed to support one man for a year. The trout, in turn, must consume 90,000 frogs, that must consume 27 million grasshoppers that live off of 1,000 tons of grass. -- G. Tyler Miller, Jr., American Chemist (1971)

2 Energy Flow Energy in an ecosystem originally comes from the sun Energy in an ecosystem originally comes from the sun

Energy Pyramid 2 nd Law of Thermodynamics: energy is not transferred from one object/organism to the next with 100% efficiency.  Some of the energy is lost to the environment. Energy Pyramid shows the amounts of energy that moves from one level to the next.

Sample Energy Pyramid

Energy Transfer Only about 10% of energy is transferred from one level to the next. The other 90% is used by the organism to carry out its life processes (growth, walking, running, etc.) or it is lost to the environment (undigested food becomes feces, bones, etc.).

6 Other Ecological Pyramids Biomass Pyramid Biomass Pyramid : A pyramid of biomass is a representation of the amount of energy contained in biomass, at different trophic levels for a given point in time. (biomass is the dry weight of organic material) Pyramid of Numbers Pyramid of Numbers : represents the number of organisms in each trophic level copyright cmassengale

7 Biomass Pyramid copyright cmassengale

8 Pyramid of Numbers copyright cmassengale