Download 20170512 Weekly Biology - Steilacoom School District

BIOLOGY
Monday
8 May 2017
Entry Task
Grab were
How
a copy
theofdifferent
the Fieldwarbler
Investigation
the
workbook from the front
same tree? Explain.
table.
• Read through the introduction.
• Read through the procedures &
familiarize yourself with the
plants.
Agenda
 Housekeeping
 Population Field Investigation
Housekeeping
Chpt 4 & 5 exam scheduled for Friday, 19 May.
Chpt 6 (Humans & The Biosphere) during the week of 22-26
May.
EOC preparation during the week of 29 May - 2 June.
• EOC scheduled for one Monday, 5 Jun.
28 days of school remaining.
Field Investigation
Determining the population.
Two popular methods of measuring populations:
• Quadrat
• Mark & Recapture
Field Investigation
Quadrat method.
5 step process:
•
•
•
•
•
Calculate quadrat area.
Calculate study site area.
Calculate # quadrats in study site.
Average organisms of ≥10 random samples.
Calculate # of organisms in study site.
Field Investigation
What are the species we will be counting?
Plantain
Clover
Dandelion
Field Investigation (P1)
Group data:
Group
Number of
Dandelion
Number of Clover
Number of
Plantain
A
0.75
1.75
0.75
B
7
37
0
C
2.25
36
0
D
1.25
20.75
0.25
E
0.75
11.5
3.25
F
4
15.25
0.75
G
1
4.75
0
H
2.25
65.25
0
_____ D per m2
_____ C per m2
_____ P per m2
Average [Total/#
Groups]
Population Density
[Average X 16] (m2)
Field Investigation (P2)
Group data:
Group
Number of
Dandelion
Number of Clover
Number of
Plantain
A
0.75
1.25
0.5
B
1
7.25
2.5
C
2
2.75
0.5
D
5.25
9.75
5.5
E
2.75
17
0
F
2.25
5.25
1.5
G
4.5
6.75
0.75
H
3.25
19.25
3.75
_____ D per m2
_____ C per m2
_____ P per m2
Average [Total/#
Groups]
Population Density
[Average X 16] (m2)
BIOLOGY
Tuesday
9 May 2017
Entry Task
Take out your
chpt 3
Complete
the Population
Density Field Investigation:
• Complete Table 2.
• Answer all questions on pgs.
4-5.
Agenda
 Housekeeping
 Population Field Investigation
 Describing Populations
 POGIL - Population Growth
Housekeeping
Chpt 4 & 5 exam scheduled for Friday, 19 May.
• Study guide provided on Wednesday, 17 May.
• Kahoot review on Thursday, 18 May.
27 days of school remaining.
Field Investigation
Objective:
• In this investigation, we are going to practice the technique of
measuring population density of common plant species that
live in a lawn of the school. We will use quadrats to
subsample a predetermined area.
Field Investigation
Procedure (basic):
• Gently toss the quadrat onto the lawn.
• Count the number of each plant species in the quadrat &
record the population in Table 1.
• Total the number of each plant species in Table 1. Share
totals with the class.
• Copy the class data in Table 2.
• Total each column, then calculate the average population
density for the area.
Field Investigation (P1)
Group data:
Group
Number of
Dandelion
Number of Clover
Number of
Plantain
A
0.75
1.75
0.75
B
7
37
0
C
2.25
36
0
D
1.25
20.75
0.25
E
0.75
11.5
3.25
F
4
15.25
0.75
G
1
4.75
0
H
2.25
65.25
0
_____ D per m2
_____ C per m2
_____ P per m2
Average [Total/#
Groups]
Population Density
[Average X 16] (m2)
Field Investigation (P2)
Group data:
Group
Number of
Dandelion
Number of Clover
Number of
Plantain
A
0.75
1.25
0.5
B
1
7.25
2.5
C
2
2.75
0.5
D
5.25
9.75
5.5
E
2.75
17
0
F
2.25
5.25
1.5
G
4.5
6.75
0.75
H
3.25
19.25
3.75
_____ D per m2
_____ C per m2
_____ P per m2
Average [Total/#
Groups]
Population Density
[Average X 16] (m2)
Chpt 5 Objectives
You will be able to answer the following questions.
• What are the factors that affect population growth (carrying
capacity)?
• What is the difference between exponential growth & logistic
growth?
Describing Populations
Growth Rate:
• Determines whether a population increases, decreases, or
remains the same.
• Exponential growth & logistic growth.
Age Structure:
• Number of males & females of each age in a population.
• White Sharks reach sexual maturity between 8-15 years.
p. 130-131
POGIL
Process Oriented Guided Inquiry Learning:
POGIL - Population Growth
Instructions:
• You will work in your groups; do not go beyond STOP signs
without the rest of your group.
• Designate a representative to seek assistance from another
group if you get stuck, then ask the teacher.
Note: POGIL - Population Growth can be located @
https://www.steilacoom.k12.wa.us/Page/5840
BIOLOGY
Wednesday
10 May 2017
Entry Task
Take out
3 that affect population growth?
What
areyour
the 4chpt
factors
• On a aeddaddaadad ada
• Birthrate
• Death Rate
• Immigration
• Emigration
Agenda
 Housekeeping
 POGIL - Population Growth
Housekeeping
Chpt 4 & 5 exam scheduled for Friday, 19 May.
• Study guide provided on Wednesday, 17 May.
• Kahoot review on Thursday, 18 May.
26 days of school remaining.
POGIL
Process Oriented Guided Inquiry Learning:
POGIL - Population Growth
Instructions:
• You will work in your groups; do not go beyond STOP signs
without the rest of your group.
• Designate a representative to seek assistance from another
group if you get stuck, then ask the teacher.
Note: POGIL - Population Growth can be located @
https://www.steilacoom.k12.wa.us/Page/5840
BIOLOGY
Thursday
11 May 2017
Entry Task
Take&out
yourthe
chpt
3 types of growth curves.
List
sketch
two
• On a aeddaddaadad ada
• Exponential Growth
• Logistic Growth
Agenda
 Housekeeping
 Population Growth
 Limitations to Growth
Housekeeping
Chpt 4 & 5 exam scheduled for Friday, 19 May.
• Study guide provided on Monday, 15 May.
• Kahoot review on Thursday, 18 May.
25 days of school remaining.
Population Growth
Factors that can affect population
size are the birthrate, death rate, &
the rate individuals enter & leave the
population.
What two factors add fish to the
population?
What two factors remove fish from
the population?
p. 132
Exponential Growth
Under ideal conditions with unlimited resources, a population
will grow exponentially.
Reproduce Rapidly
Reproduce Slowly
p. 132-133
Logistic Growth
Logistic Growth occurs when a population’s growth slows & then
stops, following a period of exponential growth.
p. 134-135
Logistic Growth
Carrying Capacity is the maximum number of individuals of a
particular species that a particular environment can support.
p. 135
Chpt 5 Objectives
You will be able to answer the following questions.
•
What are the population dependent & population
independent growth factors?
Limiting Factors
Limiting factor?
• Factor that controls the growth of a
population.
• Acting separately or together, limiting factors
determine the carrying capacity of an
environment for a species.
Limiting Factor = Limits or controls population
growth
p. 137
Limiting Factors
p. 137, figure 5-6
Population Size
Can be limited by
Competition
Natural Disaster
Predation
Unusual Weather
Parasitism
& Disease
p. 137
Density-Dependent
Density-dependent limiting factors include:
Competition
Predation
Herbivory
Disease
Parasitism
Stress from Overcrowding
p. 138-140
Density-Dependent
Competition:
• Crowding = Competition for resources
• Resources get used up
• Members of the same or different species
How can competition affect the birthrate or death rate of a
population?
p. 138
Density-Dependent
Predation & Herbivory:
Predator-Prey Relationships
• Populations cycle up & down
down
.
Herbivore
Effects
• Same cycling as predator-prey relationship
• Moose & Balsam Fir
Humans as Predators
• Death rates so high that birthrates cannot keep up.
p. 138-139
BIOLOGY
Friday
12 May 2017
Entry Task
Take out
chpt 3 factors are density-dependent limiting
Which
of your
the limiting
factors?
• On a aeddaddaadad ada
•
•
•
•
•
•
Competition
Predation
Herbivory
Parasitism
Disease
Stress from Overcrowding
Chpt 5 Quiz 1
Write your name at the top of the quiz
Remember…
• No talking.
• Keep your eyes on your own answer sheet.
• NO electronics.
When you are finished…
• Check to make sure you thoroughly answered all questions.
• Bring your quiz forward & turn in.
• Silently review density-independent factors in chapter 5 of
your biology textbook.
Agenda
 Housekeeping
 Limitations to Growth
 Human Population Growth
Housekeeping
Chpt 4 & 5 exam scheduled for Friday, 19 May.
• Study guide provided on Monday, 15 May.
• Kahoot review on Thursday, 18 May.
24 days of school remaining.
• Hurray!
• Deadline for missing assignments & make-up exams is 9 Jun.
Density-Dependent
Parasitism & Disease:
Parasitism = weakens host = may cause death
• Feeds at the expense of the host
Disease = weakens organism = may cause death
• Canine parvovirus (CPV)
p. 140
Density-Dependent
Stress from overcrowding:
Fighting amongst species
Stress = weakens organism = low birthrate, high death rate
• Females may neglect, kill, or even eat their own offspring
p. 140
Density-Independent
Density-independent limiting factors include:
Hurricanes
Droughts
Floods
Natural Disasters
p. 138
Density-Independent
True Density-independence?
• May vary with population density.
• Human activity can also have an impact.
p. 138
Density-Independent
Controlling Introduced Species:
Invasive species may not have natural predators.
• Herbicides, pesticides, or other devices used for control
p. 138
Video
Population Ecology: The Texas Mosquito Mystery - Crash
Course Ecology #2 (11:52):
• Link: https://www.youtube.com/watch?v=RBOsqmBQBQk