L15_15_Biodiversity

Ireland was tradionally a pastoral culture with a

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Unformatted text preview: sity important ? A diverse ecosystem is a stable ecosystem For example, disease pathogens are usually adapted to a narrow lineage of organisms (i.e., one species, or one genus) The taxonomically- diverse ecosystem will be resistant to disease Why is diversity important ? A diverse ecosystem is a stable ecosystem For example, disease pathogens are usually adapted to a narrow lineage of organisms (i.e., one species, or one genus) The taxonomically- diverse ecosystem will be resistant to disease A func;onally- diverse ecosystem will be more resistant to upheaval caused by ex;nc;on of organisms, or introduc;on of new organisms Example : an introduced plant species threatens to overtake other vegeta;on (local example is Kudzu) A func;onally diverse ecosystem with several species of herbivores is more likely to have a species that will eat and hold back the invasive species (Also consider taxonomically diverse func;onal levels: Example: primate vs. ungulate herbivores) Kudzu overtaking na;ve vegeta;on in Atlanta, Georgia (Wikipedia) (if only we had colobus monkeys!) Relevance to human food produc;on Irish potat...
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