Ecology Unit 2. IN Pg. 14 Describe something that is living – what characteristics does it have? Answer in Blue Ink, Black Ink or Pencil

Ecology Unit 2

IN Pg. 14

• Describe something that is living – what characteristics does it have?

• Answer in Blue Ink, Black Ink or Pencil.

Do it Now Pg. 14

• Describe something that is not living, what characteristics does it have? Give an example of something outside that is not living.


Title Page Pg. 151. Write the topic for the unit in the middle of the paper and box it in.2. Divide the paper into 3 equal sections.3. Put a subtopic/key word in each section.4. Add an appropriate picture to each section(no stick figures).5. Each section must have 3 different colors(black and white don’t count). Don’t use the same 3 colors for 2 different sections.

Population Growth

Unit 1:Ecosystem Dynamics: Populations

predation Human Population

Pg. 16 Read Oodles of Models and fill in the concept map below:

Models

typesdefinition

usesexamples

description description

description

description

Start Here

Models

types

Physical Conceptual

Mathe-matical

Computer

definition

usesexamples

Molecular models

Food web

Model car

description description

description

descriptionPredict what will happen under

different conditions

Research thingsthat can’t

be duplicated in the lab.

A replication of something else.

A 3D representation

Describe relationships among different parts of a system

Consists of a series of mathematical equations

Calculated by a computer program

Yes / No activity pg 17

• Place the “Yes” card at one end of your desk and the “No” card at the other end of your desk. With your partner, read each of the cards and place it into the “Yes” or “No” pile.

How did you decide which pile to place each card in?

Do it again Pg. 14

• What is the difference between Abiotic and Biotic Factors?


Out Pg. 14

• What is a scientific model?• Answer in Blue Ink, Black Ink or Pencil.

In Pg. 18

• When you hear the word Population, what do you think of?

• Answer in Blue, Black or Pencil.

Do it now Pg. 18

• Is the predator in a population of animals a good thing or bad thing?


Mark and Recapture Lab Pg. 19

• You will be given a lab sheet to do the lab on with instructions.

• Title Pg. 19 Mark and Recapture Lab.• The groups who complete with the lab with the

least amount of mistakes and do the math correctly will get candy.

• You may use your cell phone for a calculator, and calculator only.

• This lab is about population sizes.

Do it Again Pg. 18

• Why are Biotic Factors important in an ecosystem?


Out Pg. 18

• Why are Abiotic factors important in an ecosystem?


IN Pg. 20

• What did the Mark and Recapture Lab Measure?

• Answer in Blue ink, black ink or Pencil

Do it Now Pg. 20

• What do you think the biosphere is?• Answer in Blue ink, black ink or Pencil

Intro. To Ecosystems

Cornell Notes-Pg.21Line down center of page

Questions in RedAnswer in Blue ink, black ink or Pencil

3 sentence summary in Green ink.

What is ecology?

• Ecology- the study of organisms and their environment.– Reveals relationships

between living (biotic) and nonliving (abiotic) parts of the environment.

– Abiotic factors include…

– Biotic factors include….

What are factors found in an ecosystem?

Biotic Factors• Plants• Animals• Bacteria• Fungus• Microscopic organisms

like plankton

Abiotic Factors• Precipitation• Temperature• Soil• Water• Air• Geographic features like

mountains

The Biosphere

What are the Levels of organization in ecology

• Biosphere- the portion of the earth’s surface that supports life.

• Ecosystem- all of the living (biotic) and nonliving (abiotic) factors interacting in the environment.• Community- all of the populations that interact

in an area.• Population- a group of organisms of the same

species that live at the same place at the same time.

• Organisms- individual living things.

What are the Levels of organization in ecology

• Biosphere- the portion of the earth’s surface that supports life.

• Ecosystem- all of the living (biotic) and nonliving (abiotic)interacting in the environment.

• Community- all of the populations that interact in an area.

• Population- a group of organisms of the same species that live at the same place

at the same time.

• Organisms- individual living things.

What is the idea of an ecosystem?

• Eco=Greek “oikos” which means house.• System=a set of interrelated parts that work

together and DEPEND on each other.

Can you identify this image?

• Without knowing the scale the image was taken, you might guess it is a type of plant.

• This image was taken with an electron microscope and zoomed in 50X.

• You most likely would not guess that this is an image of human eyelashes.

What is Scale

• Ecosystems exist at different scales.– Microscopic=consists of organisms not visible to the

naked eye.– Macroscopic=consists of organisms you can see with

the naked eye.• Can range from small areas like a tidal pool to large areas

like the ocean.

• Regardless of scale, an ecosystem still consists of– Abiotic and biotic factors– Competition– Predator/prey relationships

What are Microscopic EcosystemsPhotographer David Littschwager

captured this amazing shot of a single drop of seawater magnified 25 times to reveal an entire ecosystem of crab larva, diatoms, bacteria, fish eggs, zooplankton, and worms.

In this single drop of water we can find all of the observable features of an ecosystem: biotic and abiotic factors, competition for resources, and predator prey relationships.

Seawater magnified 25X

What are Macroscopic EcosystemsMacroscopic ecosystems can also range in scale,

from a small freshwater pond to an entire rainforest. Yet in either system, we will find biotic and abiotic factors, competition for resources, and predator prey relationships.

What is the Concept of Definition Map

Ecosystem

CategoryWhat is it?

PropertiesHow would you

describe it?

ComparisonWhat is it similar to?

IllustrationsWhat are some examples?

How do we describe a population?• Population size is the total # of organisms.• Population distribution is how the organisms are spaced

in their environment. NO COUNTING…it’s a pattern.• Population density is the # if organisms in a particular

area at a given time.• Regions with the highest population size do not

necessarily have the highest population density, since land area is an important variable in calculating population densities– China had a population in 2004 of 1,300,100,000 with

a density of 136 people/square kilometer– Japan had a population of 127,600,000 with a density

of 338 people/square kilometer

Density/Distribution POGIL Pg. 22 Color does not matter.

• You are doing this as a table group and turning in one paper with everyone’s name on it. Copy the instructions on Pg. 22.

• Jobs:– Organizer–Reads the directions to the group and makes sure

everyone knows their jobs and all sections are completed.– Communicator– only person allowed to communicate with

other groups and ask questions of the teacher.– Timer—makes sure each part is done on time.– Calculator– does any math necessary and runs the calculator.– Recorder—decides how to record the answers on the sheet…

should be the only handwriting on the paper.

Do it again Pg. 20

• What is micro scale?• Answer in Blue Black or Pencil.

Out Pg. 20

• What is Macro Scale?• Answer in Blue Black or Pencil.

Get out your Spiral notebook

• Your notebooks are still being double checked by me and yes I am slow. At 44 I move a lot more slowly.

• You were instructed to have a 3 ring notebook and 150 – 200 sheets of notebook paper we will be using that today.

• We are going to do a couple of activities and a few notes all in the ring notebook. Be sure to keep all activities bound in your 3 ring notebook.

In: Pg 21

How Populations are

Described

Size-the total # of individualsDensity-average # of individuals per unit of area

Distribution-how the individuals are spread through the environment

Do I Do it now Pg. 21

According to the human population density map of NV, which areas have the

1. Greatest population density?

2. Why?

• According to the human population density map of NV,

• Which areas have the Greatest population density?

• Why?

Take out a sheet of paper and answer the questions then pass it to the end of the row.

1. What type of model is this?2. What predators eat elk?3. What is the main cause of death for 3-12 yo?4. What age of elk do bears kill?

Cause of Death in an Elk Population

How do we describe a population?• Population size is the total # of organisms.• Population distribution is how the organisms are spaced

in their environment. NO COUNTING…it’s a pattern.• Population density is the # if organisms in a particular

area at a given time.• Regions with the highest population size do not

necessarily have the highest population density, since land area is an important variable in calculating population densities– China had a population in 2004 of 1,300,100,000 with

a density of 136 people/square kilometer– Japan had a population of 127,600,000 with a density

of 338 people/square kilometer

Write out these questions on a piece of paper from your 3 ring notebook.

Population Projections Intro Questions1. A rate is…2. Growth rate is…3. A population that is increasing has a_____ growth

rate.4. A population that is decreasing has a __ growth

rate.5. The 4 things that affect growth rate are…6. ________ is the movement of organisms into a

population and _______ is the movement out.

Rates

• Rate is a measure of an event during a specific amount of time– Speed measures distance/time– Birth/death rates are calculated in occurrences per

1000 usually during a year#births = birth rate x pop1

#births = 10 babies x 50,000 people = 500 babies 1000 people born

Populations

• Populations are all of the individuals of a species in an area or region.

Population growth rates• A population growth rate describes how a population

changes over time. Any population that increases in size is said to have a positive growth rate. A decreasing population has a negative growth rate. A population that remains the same size has a zero growth rate. What are the variables that determine a populations growth rate? The growth of populations is regulated by 4 different factors: birth rate, death rate and the movement of individual into(immigration) and out of the population(emigration).

Calculating growth ratesPopulation = Final pop. in year 10- Initial pop. in year 1Growth rate Initial pop. in year 1

Remember If the population is increasing, it has a + number for its growth rate.

Initial pop.=5000 Final pop.=15000

Growth rate = 15000-5000=10000= 2 5000 5000

If the population is decreasing, it has a - number for its growth rate.

Initial pop.=6000 Final pop.=2000

Growth rate = 2000-6000= -4000= -.67 6000 6000

• The slope of a line tells you a population’s growth rate

Years

#Of Indiv.

+

0

__

• Carrying capacity = the number of organisms a particular habitat can sustain

Exponential growth

Logistic growth

Carrying capacity

Time

# of individuals

Population Dynamics: The study of the change in a population over time.

Demography: The study of human populations.Population doubling time: the # of years it will

take for a populations current population size to double

IN pg. 24

• Draw a graph that illustrates Logistic growth, growth, Exponential growth & Carrying Capacity, this was the second to last slide of your notes last time.

• Answer in Blue Ink, Red Ink or Pencil.

Do it Now Pg. 24

• Draw a graph that illustrates the following growth rates in this order using one line: + or positive, 0 or Neutral, and – or Negative. This was also in the notes you took or were supposed to complete at home on your own.

• Answer in Blue Ink, Red Ink or Pencil.

Lions of the Ngrorngoro Crater Pg. 25

• Worksheet will be stapled taped or glued on Pg. 25 but is must be able to be graded on both sides.

Do it again Pg. 24

• What happened to the Lions in the Ngrorngoro Crater?


Out Pg. 24

• If you don’t get an activity done in class that was on my.ccsd.net or had an address on a worksheet handed out in class what are you instructed to do?


In pg. 26

• What is exponential growth & what are good factors for exponential growth?

• Answer in Blue ink, Black in or Pencil.

Do it Now Pg. 26

• What is the equation for population growth rate?


Pg. 28 & 29 Population Growth Rate exercise.

• Pg. 28 Population growth rate data table page.

• Pg. 29 population growth rate graph page.

Study Guide Pg. 27

• Glue, Staple or tape Study Guide in on page. 27, but must be done so I can read both sides.

• Test next class – Friday for Odd and Monday for Even.

• Notebook check Tuesday for Odd and Wednesday for even.

Do it again Pg. 26

• What has to happen in a population for a positive growth rate to occur?


Out Pg. 26

• What happened to the population of Lions over time in the last activity? What were the limiting factors they faced?


Documents

Ecology Unit 2. IN Pg. 14 Describe something that is living – what characteristics does it have? Answer in Blue Ink, Black Ink or Pencil