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How do we know whether populations of wild species will go extinct? - - PowerPoint PPT Presentation
How do we know whether populations of wild species will go extinct? - - PowerPoint PPT Presentation
How do we know whether populations of wild species will go extinct? Dr Karl Duffy Plant Conservation and Population Biology Kasteelpark, Arenberg 31 Brief biography PhD Population Ecology Conservation, pollination, and genetics of
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Professor Hans Jacquemyn
Reintegration Fellowship: MYCRONICHE
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Professor Steve Johnson Chair in Evolutionary Biology
Pietermaritzburg
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Current rates of extinction?
~800 extinctions have been documented in the past 400 years
Passenger pigeon
International Union for the Conservation of Nature (IUCN) Millennium Ecosystem Assessment
~8,700 extinctions per year or 24 per day
United Nations
Up to 150 extinctions per day
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Charles Darwin
Species evolve through natural selection
- ver long time periods
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- G. Evelyn Hutchinson
The niche
environmental conditions and resources, that define the requirements
- f species to practice "its" way of life i.e. for its population to persist
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Why is this important?
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Flower Seed Seedling Mature plant
Pollinators Soil conditions and fungi
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Spiranthes spiralis
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