Transcript Standard 16
Standard 16 By: Tariq & Brock Content Standard ►Identify density dependent and density independent limiting factors that affect populations in an ecosystem. Density Dependent ► It describes a factor that influences individuals in a population in a degree that varies in response to how dense the population is. Density Dependent Limiting Factors ► Density dependent factors become limiting only when the population of an area reaches a certain level. ► These factors affect most strongly when a population is large and dense. ► Other limiting factors include competition, predation, parasitism, and disease. Disease in density dependent areas. ► ► If a plague comes into a city that would kill many people. That mainly happens because of lack of sanitation and because lack of hygiene. It can also come in to the town with disease bacteria like tapeworms, and parasitic organisms. Lack of Food, Water, and Air in density dependent areas. ► ► ► If there is lack of food that is mainly because of growth in the population. Same would go towards water and if the water gets dirty that could kill many people. If the air gets polluted that could also kill a lot of people. Lack of space. ► ► If there is too many people in a small town that causes a lack of space which lead the end of human civilization. Because of the lack of space the car can not get through the garage door. AWWW!!!!!!!! Abiotic and Biotic ► Biotic- means related to life. Plants, animals, fungi, and bacteria are all biotic factors. ► Abiotic- means not being alive. Environmental factors such habitat (pond, lake, ocean, desert, and mountain.) Questions on density dependent factors. 1. If a _______ came to town it would kill many people. The answer is on a previous slide. Answer to Q? 1 ► PLAGUE!!!!!!!!! AHHHH!!!! Q #2 ► What happens when there is lack of space???? Answer to Q # 2 ► The end of human civilization!!!!!! NOOOO!!!!!!!!!!!!!!!!!!!! !! Q#3 ► What describes the factor that influences individuals ? ? ? ? ? ? . Answer to Q # 3 ► Density dependent….. Q#4 ► FREE ► YALL BEEE !!!!!!!!!!!!!! ARE SO SMART !!!!!!!! YALL GOT IT RIGHT!!!!! Q#5 ► Limiting factors include competition, predation, parasitism, and ________. Answer to Q # 5 ► Disease….. EWWWW !!!!!!!!!!! Q # 6!!!! ► TRUE OR FALSE… ► Abiotic means not living??????? ► Answer FALSE… Q# 7 ► If there is a lack of food that means that there is a growth in what????????????????????????????????????? ????????????????????????????????????????? ????????????????????????????????????????? Answer to Q # 7 ► POPULATION!!!!!!!!!!!! YES MORE HUMAN BEINGS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Section 2 Density INDEPENDENT!!!!!!!! Limiting Factors. ► They affect all populations in similar ways, regardless of the population size!!!!!! ► That’s the definition for density independent!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!. ► YAY!!!!!!!!!!!!!!! Natural Disasters examples of things that are density independent. ► For some species hurricanes or tornadoes can destroy a population. ► Extreme cold or hot weather can also be really bad for a population. ► EX1: A severe winter frost hits Arizona that could kill giant saguaro cactuses. ► In some areas long droughts can effect populations of vegetation. ► Those are some of the severe natural disasters!!!!!! This is a picture of a Natural disaster!!!!!!!!!! ► THIS IS A TORNADO!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!! AHHHHHHHHHHHHH !!!!!!!!!!!!!!!!!!!!!!!!!! Q#8 ► How are tornadoes started??? Answer to Q # 8 ► When to air masses, (hot and cold) collide together it forms a tornado!!!!!! NOOOO… Q#9 ► Natural Disasters are examples of what???? Answer to Q # 9 ► Density Independent… ► OOOOOOHHHHHHHHH!!!!!!!!!!!!!!!!!!! Q# 10 ► For some species hurricanes and tornadoes can destroy __________!!!!!!!!!!!!!!!!!!!!!! ANSWER TO Q# 10!!!!!!!!!! ► POPULATION!!!!!!!!!!!!!!!!!!!! THAT SUCKS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Q # 11!!!???///>><< ►A SEVERE BLANK FROST IN ARIZONA could KILL many cactuses!!!!!!!!!!!!!!! ANSWer to Q# 11 ► WINTER!!!!!!!!!!!!!! Q# 11 ► Environments are always _________. Answer to Q 11 MULtIPLe CHoiCE!!!!!! A. B. C. D. Are always changing. That is the answer…. Are always dieing. are always killing people. Are always destroyed. Q # 12 ► What is the main topic that we have be teaching to you?????? Answer to Q #12 ► Density Dependent and Independent. Q # 13 ► Populations often grow and shrink in response to changes in the environment???? ► TRUE OR FALSE!!!!! Answer to Q # 13 TRUE!!!!!!!!!!!! Q # 14 ► ► Human activities have caused major upsets TRUE OR FALSE!!!!!! Answer to Q # 14 ►TRUE !!!!!!!!!! Q #>>>15<<< ► If you get this question right then Mrs. Allaway will personally give you $15.00!!!!!! ► What standard # did we just talk about?!?!?!?!?!?! just kidding about the money…. Answer to Q # >>> 15<<<!!!!!! ►Standard 16!!! THE END ► We know y’all do not want to see us go but we have to I’m sorry. ►I know y’all enjoyed as much as we did. ► NOW CLAP!!!!!!!!!!