IGCSE›Cambridge IGCSE Biology›Mind mapsHabitat DestructionCambridge IGCSE Biology: Mind mapStudy pack PDFAlso for this subtopic:Revision notesFlashcardsSubtopic testCover factsBiodiversityNumber of different species in an areaHigh biodiversity makes ecosystems stableWhy destroy?Housing expansionCrop productionLivestock grazingResource extraction: mining, quarrying, loggingPollution of water habitatsFood websLost species break feeding linksKnock-on changes across the webAffects species not directly lostHabitat lossand biodiversityDeforestationReduces biodiversityCan cause extinctionSoil eroded without rootsMore run-off, so floodingMore atmospheric COX2\ce{CO2}COX2Extinction riskSmaller population, less genetic variationLess able to survive disease or changeConserve by captive breeding and seed banksAlso monitoring and educationExam tipsMention food web disruptionSurviving groups lose variation too