BIOLOGY 10-22-159TH ENTRY TASK FOR CHAPTER 4 ET: • WHAT WAS THE RESOURCE YOU FOUND MOST HELPFUL WHEN STUDYING FOR CHAPTER 4 TEST?

LO:COLLECTING DETAILED FIELD OBSERVATIONSHOW TO ESTIMATE PLANT POPULATION DENSITY

PLAN OF THE DAY

• CHECKING GRADES FOR CHAPTER 4 TEST

• FIELD OBSERVATIONS• DESIGNING A METHOD TO ESTIMATE PLANT POPULATION DENSITIES ON OUR BACK YARD

Plantain

Dandelion

Clover

METHOD DESIGN PHASE

• WITH YOUR GROUP, GO TO THE SECOND PAGE IN YOUR PACKET AND START WORKING ON THE ‘METHOD DESIGN’ PHASE

• WORK ON THE WHITEBOARDS FIRST AND THEN TRANSFER TO YOUR PAPER (DO NOT ERASE YOUR WHITEBOARDS, YOU WILL NEED THEM LATER!!!)

• THIS PHASE HAS TO BE COMPLETED IN 15 MINUTES!!

COMMUNICATING TO OTHER GROUP

• IN THIS PHASE, YOU ARE GOING TO PRESENT YOUR METHOD DESIGN TO OTHER GROUP

• IF YOU ARE GROUP 2, GO TO TABLE 1, IF YOU ARE GROUP 4, GO TO TABLE 3, IF YOU ARE GROUP 5, GO TO TABLE 6, IF YOU ARE GROUP 7, GO TO TABLE 8

• THE SPOKESPERSON FROM EACH GROUP WILL EXPLAIN THEIR DESIGN TO THE OTHER GROUP (USE THE WHITEBOARDS FOR THIS). THE GROUP WITH THE SMALLER NUMBERS GO FIRST (FOR EXAMPLE, FOR GROUPS 1 AND 2, 1 GOES FIRST)

• YOU HAVE 8 MINUTES TO DO YOUR PRESENTATION!!

BIOLOGY 10-26-15START A NEW PAGE FOR THE 1ST ENTRY TASK FOR CHAPTER 5 (TEST DATE: MONDAY, NOVEMBER 2)

ET: COPY CHAPTER 5 MAP

LO:HOW ARE POPULATIONS DISTRIBUTED?

PLAN OF THE DAY

• CHECKING GRADES FOR CHAPTER 4 TEST

• WORK ON POPULATION DISTRIBUTION ACTIVITY (SECTION 5.1)

BIOLOGY 10-27-152ND ENTRY TASK FOR CHAPTER 5 ET: WHAT IS THE POPULATION DENSITY OF DANDELIONS, IN A 14 SQUARE KILOMETER PARK WITH A TOTAL OF 420 DANDELION PLANTS? SHOW YOUR WORK!

LO:DIFFERENCE BETWEEN EXPONENTIAL AND LOGISTIC GROWTHDIFFERENCE BETWEEN DENSITY DEPENDENT AND DENSITY INDEPENDENT LIMITING FACTORS

PLAN OF THE DAY

• CORRECT POPULATION DISTRIBUTION ACTIVITY (SECTION 5.1)

• GO OVER LOGISTIC AND EXPONENTIAL GROWTH

• GO OVER DENSITY DEPENDENT VS. DENSITY INDEPENDENT FACTORS

LIMITS TO POPULATION GROWTHEXPONENTIAL GROWTH OF POPULATIONS

A POPULATION’S ABILITY TO GROW PARTLY DEPENDS ON THE RATE AT WHICH ITS ORGANISMS CAN REPRODUCE

EXPONENTIAL GROWTH IS WHEN THE POPULATION MULTIPLIES AT A CONSTANT FACTOR AT CONSTANT TIME INTERVALS I.E. BACTERIA DOUBLING EVERY 20 MINUTES

TRANSPARENCY 35A-2

TRANSPARENCY 35A-3

TRANSPARENCY 35A-4

TRANSPARENCY 35A-5

1. Compare and contrast the two growth curves.Both curves show a period of rapid population growth, but the fur seal population eventually levels off. The bacterial population appears to continue growing exponentially.

TRANSPARENCY 35A-6

2. Which curve do you think more closely resembles the growth of most populations in nature? Explain.Limited growth curve; populations in nature are subject to limiting factors that prevent long-term exponential growth.

CARRYING CAPACITYA POPULATION MAY START TO GROW EXPONENTIALLY, BUT EVENTUALLY ONE OR MORE ENVIRONMENTAL FACTORS WILL LIMIT ITS GROWTH• A LIMITING FACTOR IS A CONDITION THAT CAN RESTRICT A

POPULATION’S GROWTH• THE CARRYING CAPACITY IS THE NUMBER OF ORGANISMS IN

A POPULATION THAT THE ENVIRONMENT CAN MAINTAIN OR “CARRY”

FACTORS AFFECTING POPULATION GROWTH

A. DENSITY-DEPENDENT FACTORS IS A FACTOR THAT LIMITS A POPULATION MORE AS A POPULATION DENSITY INCREASES

B. DENSITY-INDEPENDENT FACTORS ARE FACTORS THAT LIMIT POPULATION BUT ARE UNRELATED TO POPULATION DENSITY

POPULATION GROWTH

FOOD AVAILABILITY TEMPERATURE AND HUMIDITY

Density- IndependentDensity-dependent

POPULATION CYCLINGA. A “BOOM” AND “BUST” GROWTH CYCLE

IS ONE THAT INCREASES RAPIDLY FOLLOWED BY A SHARP DECLINE

B. OTHER GROWTH CYCLES ARE INFLUENCED BY THOSE OF OTHER POPULATIONS IN THEIR ENVIRONMENTS

POPULATION CYCLING

BIOLOGY 10-28-153RD ENTRY TASK FOR CHAPTER 5 ET: WHAT IS THE DIFFERENCE BETWEEN DENSITY DEPENDENT AND DENSITY INDEPENDENT FACTORS?

LO:HOW POPULATION GROWTH IS NATURALLY REGULATED

PLAN OF THE DAY

• CORRECT POPULATION DISTRIBUTION ACTIVITY (SECTION 5.1)

• POPULATION GROWTH POGIL

POPULATION DISTRIBUTION QUIZ

BIOLOGY 10-29-154TH ENTRY TASK FOR CHAPTER 5 ET: GET A BIO BOOK. EXAM THE CAPTION FOR THIS GRAPH ON PAGE 139. EXPLAIN WHAT HAPPENED TO THE MOOSE POPULATIONAFTER 1995 AN WHY

LO:HOW POPULATION GROWTH IS NATURALLY REGULATEDHOW HUMAN POPULATION GROW

PLAN OF THE DAY

• FINISH AND CHECK POPULATION GROWTH POGIL ANSWERS

• HUMAN POPULATION GROWTH

WITH YOUR GROUP CHECK THESE GRAPHS. INFER ALL YOU CAN FROM THE INFORMATION THESE GRAPHS ARE PROVIDING (YOU CAN USE THE BOOK OR NOTES)

COUNTRY A POPULATION

COUNTRY B POPULATION

WORLD POPULATION • HTTP://WWW.WORLDOMETERS.INFO/WORLD-POPULATION/• HTTP://WWW.EAHDFOUNDATION.ORG/WORLD_LIVE_CLOCK.P

HP• HTTP://WWW.CENSUS.GOV/MAIN/WWW/POPCLOCK.HTML