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Unit 2 - The Living World: BiodiversityTOPIC 2.1 Introduction to BiodiversityENDURING UNDERSTANDINGERT-2Ecosystems have structure and diversity that change over timeLEARNING OBJECTIVEERT-2.AExplain levels ofbiodiversity and theirimportance to ecosystems.ESSENTIAL KNOWLEDGEERT-2.A.1Biodiversity in anecosystem includes genetic,species, and habitat diversity.ERT-2.A.2The more geneticallydiverse a population is, thebetter it can respond toenvironmental stressors.Additionally, a populationbottleneck can lead to a loss ofgenetic diversity.ERT-2.A.3Ecosystems thathave a larger number ofspecies are more likely torecover from disruptions.ERT-2.A.4Loss of habitat leadsto a loss of specialist species,followed by a loss of generalistspecies. It also leads toreduced numbers of speciesthat have large territorialrequirements.What doesbiodiversityliterally mean (its word parts): _________________________________Define the three levels of biodiversity:Genetic DiversitySpecies DiversityHabitat DiversityWhat level of biodiversity is illustrated inthis drawing of a freshwater swamp?_________ __________ is the numberone cause of organism extinction.Why?
ERT-2.A.5Species richnessrefers to the number of differentspecies found in an ecosystem.Circle the statement that describes species richness.A temperate forest is home tobroad leaf trees like oak andmaple, along with many shrubs,ferns, and moss species. Animalsinclude deer, opossums, racoon,and mice..Within a particular species of frog,there is a lot of color variation.Brown, tan, green, and bothspeckled or solid.A saltwater march has highprimary productivity, with hundredsof mangrove trees and thousandsof Salt Hay Grass (Spartinapatens) plants.Think about the Biomes. Name one Biome that would likely recover from an ecosystem disturbance relatively quickly. ________________ Whydid you choose this biome?Name one Biome that would likely recover relatively slowly. ________________ Why did you choose this biome?Use colored pencils or markers to complete the drawing that models thebottleneck effect. Each color represents a genetic variation within a species.Explainwhy the first population was more resilient to environmental stressorsthan the current (after bottleneck) population.
Unit 2 - The Living World: BiodiversityTOPIC 2.2 Ecosystem ServicesENDURING UNDERSTANDINGERT-2Ecosystems have structure and diversity that change over timeLEARNINGOBJECTIVEERT-2.BDescribeecosystem services.ESSENTIALKNOWLEDGEERT-2.B.1There arefour categories ofecosystem services:provisioning,regulating, cultural, andsupporting.LEARNINGOBJECTIVEERT-2.CDescribe theresults of humandisruptions toecosystem services.ESSENTIALKNOWLEDGEERT-2.C.1Anthropogenicactivities can disruptecosystem services,potentially resulting ineconomic andecologicalconsequences.