Monday Oct 13 - PowerPoint Presentation

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Monday Oct 13th-Week 10TOPIC: Population Dynamics  OBJ : 3-5DO NOW: EXT: Oh DEER! DUE DATE: Oct 14thDW: 4.1 Application Notes-----------------------------------------------------------------------------------------------------------------EXIT: Fill in your level of understanding AND provide a summary of what you learned in class today.

HANDOUTS to PICK-UP:TURN IN to ABS box:SEMINAR 2:BEFORE/AFTER SCHOOL:DW-4.2 Book Pages/notes/vocab

-Check weekend work-Go Over 4.1 Application notes

What advantage do smaller fish gain by forming clumped groups, or schools?

AGENDA

ABSENT

Science of LifeSlide2

 MONDAY: ___10__/__13___ OBJECTIVE…#_3-5_____ TOPIC:Population Dynamics Daily Work Grade- 4.2 Book Pages/4.2 Vocab  DW GRADE: 2 1 0 

MONDAY

DO NOWQ:What advantage do smaller fish gain by forming clumped groups, or schools?A: Schooling behavior

confuses predators and provides additional safety for individuals within the center of the school.Slide3

3---EXPLAIN the differences between population size, density, and dispersion.   4---SPECULATE how the rate of change in populations is determined by the combined effects of birth, death, emigration, and immigration.   5---COMPARE & CONTRAST both exponential & logistical models of population growth.UNIT OBJECTIVES

Add on to each QUESTION every night as REVIEW!Slide4

VocabularyThese should be done by test day! population density dispersion density-independent factor

density-dependent factor population growth rate emigration immigration carrying capacity k-strategist r-strategistSlide5

GROUP WORK: GUIDED NOTES-As a GROUP complete the guided note using your knowledge from the reading.Slide6

4.1 POPULATION DYNAMICSWHAT YOU WILL LEARN-concepts of carrying capacity & limiting factors-ways in which populations are distributedSlide7

MAIN IDEA:populations of species are described by: -density -spatial distribution -range -growth rateMAIN IDEASlide8

REVIEW VOCABULARYpopulation- -group of SAME species/SAME place/SAME timeREVIEW VOCABULARYSlide9

POPULATION CHARACTERISTICS-COMPARE the terms by defining & giving examplesspacing of organisms# of individuals per area-area where an organism lives & reproducespopulation density-spatial distribution (dispersion)-population range-Habitat area= 4km231 individuals [bison]DENSITY = 7.75 indv per area km22 different types

-limited to small or large areas-affected by abiotic & biotic factorsPOPULATION CHARACTERISTICSClumped, random, uniformSlide10

POPULATION CHARACTERISTICSIDENTIFY each pattern of dispersion representedNOTE characteristics of eachrandom-unpredictable spacing-seeds blown in winduniform-compete for resources-social interactionsclumped-distribution of nutrients-social-matingPOPULATION LIMITING FACTORSlide11

POPULATION LIMITING FACTOR-COMPARE the terms by defining & giving examples-restricts the # of organisms in an areaABIOTIC—does NOT depend on # of ind in population-extreme weather, pollution-max # of individuals an environment can support for long termcarrying capacity-limiting factor-density-independent factor-density-dependent factor-

BIOTIC—DOES depend on # of ind in population-predation, disease, competitionLIMITED by the energy, water, nutrients availableEX- food supplyPOPULATION LIMITING FACTORSlide12

POPULATION LIMITING FACTOR-CLASSIFY each limiting factorFACTORbiotic or abioticDENSITY-INDEPENDENTDENSITY-DEPENDENTLava flow

Change in number of predatorsSpread of disease

Extremely cold winter

Toxic chemical spill into a stream

Intense competition for food source

Flooding due to hurricane

Fungus that attacks elm trees

ABIOTIC

X

X

X

X

X

X

X

X

BIOTIC

Stand-UP

Sit-DOWN

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POPULATION LIMITING FACTORSlide13

Population growth rate-emigration-immigration-mortality-natality-POPULATION LIMITING FACTOR-COMPARE factors in a population’s growth rate

-individuals leave-EXIT (-)Individuals die (-)-rate in which individuals are added or removed from a populationIndividuals born (+)-individuals move INTO (+)Slide14

Think and Answer: 1PREDICT how the cycle might change for the moose population if the wolves were removed from Isle Royale.Slide15

POPULATION LIMITING FACTORSDRAW graphs:lag phaseexponential growthcarrying capacityExponential Population Growth Logistic Population Growthpopulation growth w/o limiting factors—continues to grow

population growth w/limiting factors—stops growing when reaches carrying capacityPOPULATION LIMITING FACTORSlide16

EXPONENTIAL GROWTH:Starts with lag phaseNO limiting factorsNO carrying capacity J-curveLOGISTIC GROWTHStarts with lag phaseLimiting factorsCarrying capacityS-curvePOPULATION LIMITING FACTORSlide17

CHARACTERISTICR-strategistK-strategistsize# of births per cycle

Life span

amount of energy put into raising their youngtype of environment

SUMMARIZE the reproductive strategies of r-strategists & k-strategists for ensuring continuation of their species.

many offspringLARGEequilibrium at carrying capacityabundant resourcesLONG life spanSMALLSHORT life spanlittle amount of energy

1 or few offspring

lot of energy raising young

POPULATION LIMITING FACTOR

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POPULATION LIMITING FACTORSlide18

POPULATION LIMITING FACTORSIDENTIFY the following organisms reproductive patternsRKRRR-strategist / K-strategistPOPULATION LIMITING FACTORSlide19

density-independentclumpedpredationuniformlimiting factorsgrowth ratedroughtdensitydispersionABIOTICCONCEPT MAP:BIOTICdensity-dependentcompetitionPOPULATION LIMITING FACTORSlide20

Review QuestionsWhat are three characteristics used to describe populations?-Spatial distribution-population density-growth rateSlide21

Review QuestionsWhat is the difference between uniform and random distribution?-Uniform distribution appears equally spaced, and random distributions can have organisms closely spaced in some areas and more distantly spaced in othersSlide22

Review QuestionsHow would you classify a biotic factor, such as food availability that limits its population size?-it would be a density-dependent factorSlide23

Review QuestionsHow would you distinguish between the shape of an exponential growth curve and a logistic growth curve?-Exponential growth curves are J-shaped and logistic growth curves are S-shapedSlide24

Review QuestionsCan you describe what is happening to a population in the exponential phase of growth?-It is growing rapidlySlide25

EXITFILL-IN: level of understanding of today’s objective

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EXIT: Provide a summary of what you learned today. (17 word minimum)