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Lecture

Conservation Biology - 4. Five Riders of the Apocalypse

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Department
Biology
Course
BIOL 3130
Professor
Andrew Mac Dougall
Semester
Winter

Description
Conservation Biology Lecture Notes4Five riders of the apocalypse1 Habitat degradation primary cause of biodiversity lossProblemsConversion to unsuitable habitatResource extraction agriculture settlements pollutionAffects 60 of the earths ecosystemsSolutionsProtectionModification ecoforestryRestoration and recovery2 Habitat fragmentation secondary cause of biodiversity lossProblemsThe reduction of area covered by the habitat type smaller population sizeIsolationLess habitat diversity loss of heterogeneity Edge effectsVulnerable species rare large home ranges limited dispersal demographic variabilitySolutionsCorridorsModified land useGene flow transplants transportbring in other populations3 OverexploitationProblemsHunting harvesting or collecting fishingExtinction extirpation population reductionsCascading effects within food websSolutionsSustainable exploitation fairer compensation reintroductions4 Species invasionsProblemsAccidental or intentional introductionsOften associated with human disturbanceSpecies loss reduced ecosystem functionSolutionsBiological control eradication prevention
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