TOPIC: population dynamics OBJ : 3-5 DO NOW:

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Katrina Malone
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1 AGENDA ABSENT MON 10/29 WK-3 BIOLOGY TOPIC: population dynamics OBJ : 3-5 DO NOW: SEE NEXT SLIDE EXT: FP DATA DAY 1,12,18 DUE DATE: BLOCK [DAY 18] DW: 4.2 RDQ-VOC VOCAB QZ FRIDAY / UNI T EXAM MONDAY NOV REV 4.1 APP TS -4.2 RDG-VOCAB HANDOUTS to PICK-UP: -4.2 RDQ-VOC TURN IN to ABS box: - SEMINAR 2: - BEFORE SCHOOL / RAVEN 50: - EXIT: see slide

2 OH DEER- LATE CREDIT THROUGH MONDAY TURN IN GRAPH / REFLECTION q s

3 4.1 APP NOTES out for REVIEW

4 MAIN IDEA: populations of species are described by: -density -spatial distribution -range -growth rate

5 population- REVIEW VOCABULARY -group of SAME species/same place/same time

6 POPULATION CHARACTERISTICS -COMPARE the terms by defining & giving examples population density- # of individuals per area Habitat area 4km 2 31 individuals [bison] DENSITY = 7.75 indv per area km 2 # INDV / AREA spatial distribution (dispersion)- spacing of organisms PATTERN population range- -area where an organism lives & reproduces 2 different types -limited to small or large areas -affected by abiotic & biotic factors

7 POPULATION CHARACTERISTICS IDENTIFY each pattern of dispersion represented NOTE characteristics of each random -unpredictable spacing -seeds blown in wind uniform -compete for resources -social interactions clumped -distribution of nutrients -social -mating

8 POPULATION LIMITING FACTOR -COMPARE the terms by defining & giving examples carrying capacitylimiting factor- EX- food supply -max # of individuals an environment can support for long term LIMITED by the energy, water, nutrients available -restricts the # of organisms in an area density-independent factor- ABIOTIC does NOT depend on # of ind in population -extreme weather, pollution density-dependent factor- BIOTIC DOES depend on # of ind in population -predation, disease, competition

9 POPULATION LIMITING FACTOR -CLASSIFY each limiting factor Lava flow FACTOR biotic or abiotic Change in number of predators Spread 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 STAND-UP ABIOTIC X X X X SIT-DOWN DENSITY- INDEPENDENT DENSITY- DEPENDENT BIOTIC X X X X

10 POPULATION LIMITING FACTOR -COMPARE factors in a population s growth rate Population growth rateemigration- immigration- -rate in which individuals are added or removed from a population -individuals leave-exit (-) -individuals move INTO (+) Individuals die (-) mortality- natality- Individuals born (+)

11 DRAW graphs: POPULATION LIMITING FACTORS Exponential Population Growth Logistic Population Growth exponential growth carrying capacity population growth w/o limiting factors -continues to grow lag phase population growth w/limiting factors -stops growing when reaches carrying capacity

12 POPULATION LIMITING FACTOR SUMMARIZE the reproductive strategies of r-strategists & k-strategists for ensuring continuation of their species. r-strategist k-strategist size # births per cycle Energy put into raising offspring Life span Controlled by factors: density-dependent OR density-independent Type of environment Type of growth small many offspring NO nurturing SHORT life span density-independent -abundant resources -does not stay near carrying capacity -exponential LARGE few offspring nurturing LONG life span density-dependent -limiting factors -stays near carrying capacity -logistic

13 K R IDENTIFY the following organisms reproductive patterns R K R R R-strategist / K-strategist

14 CONCEPT MAP: dispersion growth rate density uniform limiting factors clumped densityindependent densitydependent ABIOTIC BIOTIC drought predation competition FILE- DAILY WORK

15 4.2RD-VOC INDEPENDENT WORK TIME NUMBER EVERY PARAGRAPH: READ: CIRCLE vocabulary terms and UNDERLINE the definition in RED PEN COMPLETE VOCAB KEY WORDS [back of objectives] SKIM / HIGHLIGHT the OBJECTIVES / REVIEW VOCABULARY -highlight MAIN IDEA] -IDENTIFY the MAIN TOPICS [highlight and star]

16 EXIT CIRCLE-Circle level of understanding for OBJ 3-5 Q s / clarifications- EXIT-NONE

EXT: --- DUE DATE: --- DW: 2.1 SUMMARY

AGENDA ABSENT FRI 9/21 week-6 BIOLOGY TOPIC: organisms and their relationships OBJ : 1-5 DO NOW: PROVIDE examples of a termite s habitat / niche EXT: --- DUE DATE: --- DW: 2.1 SUMMARY ----- -------------------------------------------------------------------------------