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. Answer in Blue Ink, Black Ink or Pencil.

Title Page Pg 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 types definition uses examples description Start Here

Models types Physical Conceptual Mathe- matical Computer definition uses examples Molecular models Food web Model car description Predict what will happen under different conditions Research things that 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? Answer in Blue Ink, Black Ink or Pencil.

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? Answer in Blue, Black or Pencil.

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? Answer in Blue, Black or Pencil.

Out Pg. 18 Why are Abiotic factors important in an ecosystem? Answer in Blue, Black or Pencil.

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.21 Line down center of page Questions in Red Answer 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 Ecosystems Photographer 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 Ecosystems Macroscopic 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 Category What is it? Properties How would you describe it? Comparison What is it similar to? Illustrations What 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 individuals Density-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 Questions 1.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 pop 1 #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 rates Population =Final pop. in year 10- Initial pop. in year 1 Growth rateInitial 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 = =10000= If the population is decreasing, it has a - number for its growth rate. Initial pop.=6000 Final pop.=2000 Growth rate = = -4000=

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? Answer in Blue Ink, Black Ink or Pencil.

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? Answer in Blue Ink, Black Ink or Pencil.

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? Answer in Blue ink, Black in or Pencil.

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? Answer in Blue ink, Black in or Pencil.

Out Pg. 26 What happened to the population of Lions over time in the last activity? What were the limiting factors they faced? Answer in Blue ink, Black in or Pencil.