Presentation is loading. Please wait.

Presentation is loading. Please wait.

13.4-Food Chains and Food Webs

Published byCaren Fitzgerald Modified over 9 years ago

Similar presentations

Presentation on theme: "13.4-Food Chains and Food Webs"— Presentation transcript:

1 13.4-Food Chains and Food Webs

2 FOOD CHAIN Single sequence that links species by their feeding relationships. Traces the transfer of energy Simplest way to look at energy flow in an ecosystem

3 Trophic Levels level in a food chain 1. Producers always first level
2. Primary consumers next level (herbivore) 3. Secondary consumer- eat herbivores (small carnivore or omnivore) 4. Tertiary consumer-carnivores that eat secondary consumers.

4 Large Carnivore Small Carnivore Herbivore Producer
3˚ Consumer (tertiary) Killer Whale Small Carnivore 2˚Consumer (secondary) Ex: Sea Otter Herbivore 1˚ Consumer (primary) Ex: Sea Urchin Producer Ex: Kelp

5 FOOD WEB Interconnected food chains
Organisms usually have multiple feeding relationships

6 FOOD WEB More realistic display of feeding relationships
Arrows show transfer of ENERGY

Download ppt "13.4-Food Chains and Food Webs"

Similar presentations

Energy in Ecosystems MRS. PITTALUGA 8 TH GRADE SCIENCE.

Energy in Ecosystems MRS. PITTALUGA 8 TH GRADE SCIENCE.
Consumers are not all alike. Herbivores eat only plants.

Consumers are not all alike. Herbivores eat only plants.
Ecosystem Structure.

Ecosystem Structure.
Food Chain – a model of how energy is passed from organism to organism in a community Energy moves from one organism to the next in a one-way direction.

Food Chain – a model of how energy is passed from organism to organism in a community Energy moves from one organism to the next in a one-way direction.
Trophic Levels & Energy in Ecosystems. Energy Movement through Ecosystems Energy flows through ecosystems Trophic levels: feeding relationships.

Trophic Levels & Energy in Ecosystems. Energy Movement through Ecosystems Energy flows through ecosystems Trophic levels: feeding relationships.
Energy Flow in the Ecosystem. Food chain – shows which organisms each which in an ecosystem.

Energy Flow in the Ecosystem. Food chain – shows which organisms each which in an ecosystem.
Relationships in an Ecosystem. Instructions: View this powerpoint on concepts and terms that will be useful to you in understanding relationships within.

Relationships in an Ecosystem. Instructions: View this powerpoint on concepts and terms that will be useful to you in understanding relationships within.
Feeding Relationships Food Chains And Webs.. FOOD CHAINS You need to be familiar with the idea of food chains. In its simplest sense, a food chain shows.

Feeding Relationships Food Chains And Webs.. FOOD CHAINS You need to be familiar with the idea of food chains. In its simplest sense, a food chain shows.
MRS. SANDY GÓMEZ Energy Flow in Ecosystems. Are the feeding relationships between organisms. A Food Chain is:  transfer of food energy from its source.

MRS. SANDY GÓMEZ Energy Flow in Ecosystems. Are the feeding relationships between organisms. A Food Chain is:  transfer of food energy from its source.
13.4 Food Chains And Food Webs KEY CONCEPT Food chains and food webs model the flow of energy in an ecosystem.

13.4 Food Chains And Food Webs KEY CONCEPT Food chains and food webs model the flow of energy in an ecosystem.
Ecosystem Notes Organism: a living thing

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

Energy Flow In An Ecosystem Unit 11 - Ecology. Producers  The most important part of an ecosystem  Without a constant energy source, living things cannot.
Energy Flows Through Ecosystems Sun: Makes all energy on Earth. Producers: Make their own food. Consumers: Get their food by eating other organisms. Decomposers:

Energy Flows Through Ecosystems Sun: Makes all energy on Earth. Producers: Make their own food. Consumers: Get their food by eating other organisms. Decomposers:
9/18/14 Objective: How do living things get their energy? Do Now:

9/18/14 Objective: How do living things get their energy? Do Now:
Chapter 3: How Ecosystems Work Section 3.1: Energy Flow in Ecosystems.

Chapter 3: How Ecosystems Work Section 3.1: Energy Flow in Ecosystems.
 the transfer of energy and matter in the form of food when one organism eats another organism.

 the transfer of energy and matter in the form of food when one organism eats another organism.
9/18/13 Objective: How do living things get their energy? Do Now: Where does the ultimate source of energy come from for all of life?

9/18/13 Objective: How do living things get their energy? Do Now: Where does the ultimate source of energy come from for all of life?
Food Chains How do humans affect the food chain?.

Food Chains How do humans affect the food chain?.
1 Energy Flow Through an Ecosystem Producers, Consumers, Food Chains, Food Webs, Energy Pyramids copyright cmassengale.

1 Energy Flow Through an Ecosystem Producers, Consumers, Food Chains, Food Webs, Energy Pyramids copyright cmassengale.
Ecosystem Components Producers – Basis of an ecosystem’s energy – Autotrophs: perform photosynthesis to make sugars – Chemotrophs: Bacteria which use.

Ecosystem Components Producers – Basis of an ecosystem’s energy – Autotrophs: perform photosynthesis to make sugars – Chemotrophs: Bacteria which use.

Similar presentations

Ads by Google