Warm-up Spot the Differences Observation Warm- up Get out your ISN and turn to your warm up...

Warm-upWarm-up

Spot the Differences Observation Warm-Spot the Differences Observation Warm-upup

Get out your ISN and turn to your warm up Get out your ISN and turn to your warm up section- I know it’s been awhile but label section- I know it’s been awhile but label the warm up with the date, title, etc. _the warm up with the date, title, etc. _

http://ecology.com/tv/vidpages/http://ecology.com/tv/vidpages/biodaversity.phpbiodaversity.php

Ecology:Ecology:an introduction

What is Ecology?What is Ecology?

The study of The study of living thingsliving things and how they and how they interactinteract with their with their environmentenvironment..

EcosystemEcosystem

All the organisms living in an All the organisms living in an area and how they interact with area and how they interact with both living and non-living things. both living and non-living things.

Two Factors Organisms Interact Two Factors Organisms Interact With:With: Biotic Biotic – living– living AbioticAbiotic – nonliving – nonliving

Identifying Biotic and Abiotic Identifying Biotic and Abiotic Factors of Your School EcosystemFactors of Your School Ecosystem

BIOTIC (LIVING)BIOTIC (LIVING) ExamplesExamples

______________________________ ______________________________ ______________________________ ______________________________

List or Draw PicturesList or Draw Pictures

ABIOTIC (NON-ABIOTIC (NON-LIVING)LIVING)

ExamplesExamples ______________________________ ______________________________ ______________________________ ______________________________

List or Draw picturesList or Draw pictures

Pg 20: Ecology Tab Pg 20: Ecology Tab Pg 21-Outside wks Pg 222- Pg 21-Outside wks Pg 222-

NotesNotes Which factors are most important for an Which factors are most important for an

animals survival????animals survival????

BioticBiotic

Biotic – Biotic – living thingsliving things Plants Plants AnimalsAnimals Single celled organisms (bacteria)Single celled organisms (bacteria) Fungi (example: Mushrooms)Fungi (example: Mushrooms)

AbioticAbiotic

Abiotic – Abiotic – nonlivingnonliving WaterWater AirAir SoilSoil TemperatureTemperature Sunlight Sunlight

Warm-upWarm-upTake out a sheet of paper and answer the following questions: Take out a sheet of paper and answer the following questions:

Today’s Today’s warm-up will be collected!warm-up will be collected!1.1. Draw a diagram of an ecosystem where you live (the desert). Draw a diagram of an ecosystem where you live (the desert).

Label all of the abiotic and biotic factors.Label all of the abiotic and biotic factors.2.2. Give two examples of how plants and animals affect their Give two examples of how plants and animals affect their

environment.environment.3.3. Describe how temperature, light, and soil (all abiotic factors) Describe how temperature, light, and soil (all abiotic factors)

affect an ecosystem.affect an ecosystem.4.4. Predict what will happen: Think of a forest ecosystem. Now Predict what will happen: Think of a forest ecosystem. Now

imagine that a large volcanic eruption throws large amounts of imagine that a large volcanic eruption throws large amounts of dust and ash into their air; blocking out the sun. How might the dust and ash into their air; blocking out the sun. How might the forest ecosystem be affected if the sunlight is blocked for a day? forest ecosystem be affected if the sunlight is blocked for a day? Then predict if the sunlight were blocked for a year…. What Then predict if the sunlight were blocked for a year…. What would happen to the plants and animals of that ecosystem?would happen to the plants and animals of that ecosystem?

Warm-upWarm-up

Get your ISN and turn to the pageGet your ISN and turn to the page Draw an ecosystem on a half sheet of Draw an ecosystem on a half sheet of

paper:paper: Label three biotic factorsLabel three biotic factors Label three abiotic factorsLabel three abiotic factors This will be graded!This will be graded!

Parts of an EcosystemParts of an Ecosystem(From Smallest Level To Largest Level)(From Smallest Level To Largest Level)

Organism- A single living thingOrganism- A single living thing

PopulationPopulation

All the organisms in an All the organisms in an ecosystem that belong to the ecosystem that belong to the same species (biotic)same species (biotic)

Population of DragonsPopulation of Dragons(All the same species)(All the same species)

CommunityCommunity

All the All the populationspopulations in an in an ecosystemecosystem (biotic) (biotic)

http://www2.tpwd.state.tx.us/learning/texas_nature_trackers/black_tailed_prairie_dog/images/lg_black_tailed_prairie_dogs.jpg

CommunityCommunity

Ecosystem- All the biotic and Ecosystem- All the biotic and abiotic factors living in the same abiotic factors living in the same

area.area.

BiomeBiomeA biome is a A biome is a large large geographical geographical area area characterized characterized by plants, by plants, animals, and animals, and climateclimate

Organism

Population

Community

Ecosystem

Biome

Smallest Level

Largest Level

Habitat Habitat

The place in which an The place in which an organism lives.organism lives.

Provides Basic NeedsProvides Basic Needs• Food, Shelter, Temperature, Food, Shelter, Temperature, for animals survival. for animals survival.

Energy Roles Within An Energy Roles Within An Ecosystem-Ecosystem-

An organism’s An organism’s energy roleenergy role is is determined by how it obtains determined by how it obtains energy & how it interacts with energy & how it interacts with other living things.other living things.

The three energy roles are The three energy roles are producer, consumer, & producer, consumer, & decomposerdecomposer..

PRODUCERSPRODUCERS

A producer is A producer is an organism that an organism that can make its own food.can make its own food.

These organisms are called These organisms are called autotrophsautotrophs..

CONSUMERSCONSUMERS

A consumer is A consumer is an organism that obtains an organism that obtains energy by feeding on other organisms.energy by feeding on other organisms.

These organisms are calledThese organisms are called: Heterotrophs.: Heterotrophs.

Consumers are classified by what Consumers are classified by what they eat…..they eat…..

Carnivores: Only eat other animalsCarnivores: Only eat other animals Herbivores: Plant eatersHerbivores: Plant eaters Omnivores: Eat both animals and plantsOmnivores: Eat both animals and plants Scavengers: Eat the remains of dead Scavengers: Eat the remains of dead

animals. (example: vultures)animals. (example: vultures)

DECOMPOSERSDECOMPOSERS

Decomposers are Decomposers are organisms organisms that break down wastes & dead that break down wastes & dead organismsorganisms

Two major groups are Two major groups are bacteriabacteria & & fungifungi

Identify the following pictures as….Identify the following pictures as….

ProducersProducersConsumers Or…Consumers Or…DecomposersDecomposers

Now Identify the pictures as…..Now Identify the pictures as…..

Carnivores (only eat meat)Carnivores (only eat meat)Herbivores (only eat plants)Herbivores (only eat plants)Omnivores (eat both plants Omnivores (eat both plants

and animals) or….and animals) or….Scavengers (eat the remains Scavengers (eat the remains

of dead animals!)of dead animals!)

Warm-upWarm-up

Complete the warm-upon your deskComplete the warm-upon your desk We will grade this in classWe will grade this in class

Food Chains/Food WebsFood Chains/Food Webs

A food chain shows what is A food chain shows what is eaten.eaten.

The lettuce is eaten by the rabbit.

Food chains always start Food chains always start with a plant.with a plant.

The lettuce is eaten by the slug, the slug is eaten by

the bird.

Food Chains… A reminderFood Chains… A reminder

A food chain shows which animals A food chain shows which animals eat other animals or plants.eat other animals or plants.

Plants don’t eat things.Plants don’t eat things. A food chain starts with what gets A food chain starts with what gets

eaten and the arrows point towards eaten and the arrows point towards what does the eating.what does the eating.

Food chains only go in one direction.Food chains only go in one direction.

Where do the arrows point?Where do the arrows point?

The top of the food chain.The top of the food chain.

Some animals are said to be at the top of the food chain. This is because they are not hunted by other animals.

No other animal hunts the lion. The lion is at the top of the food chain.

Can you think why?

Food WebsFood Webs

In the wild, animals may eat more In the wild, animals may eat more than one thing, so they belong to than one thing, so they belong to more than one food chain.more than one food chain.

To get the food they need, small To get the food they need, small herbivores may eat lots of different herbivores may eat lots of different plants, and carnivores may eat plants, and carnivores may eat many different animals.many different animals.

Food WebsFood Webs

We can show this by using a food web, which is just We can show this by using a food web, which is just a more complicated version of a food chain.a more complicated version of a food chain.

owl fox

rabbits

grass

mice

berriesseeds

Breaking the ChainBreaking the Chain

Organisms living in a habitat Organisms living in a habitat depend on each other.depend on each other.

If one part of a food chain dies out If one part of a food chain dies out or is greatly reduced, the or is greatly reduced, the consumers have to find alternative consumers have to find alternative food, move away, or starve.food, move away, or starve.

This then affects more consumers This then affects more consumers in the same way. in the same way.

Your AssignmentYour Assignment

Using Microsoft Word: you and your Using Microsoft Word: you and your partner will create two food chainsYou partner will create two food chainsYou should have a least 5 steps in your chain. should have a least 5 steps in your chain.

Then take your two food chains and Then take your two food chains and connect them into a food webconnect them into a food web

Put your name on your assignment, print a Put your name on your assignment, print a copy of your food chains and web staple it copy of your food chains and web staple it together and turn it into the bin.together and turn it into the bin.

Carrying CapacityCarrying Capacity

The maximum number of individuals of The maximum number of individuals of any species that can be supported by a any species that can be supported by a particular ecosystem on a long-term basisparticular ecosystem on a long-term basis