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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