individuals are removed faster than they can be replaced examples › dodo › giant ground sloths...
Post on 27-Dec-2015
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Overharvesting
Individuals are removed faster than they can be replaced
Examples› Dodo› Giant ground sloths› Mammoths› American camels
Overharvesting
American Bison Population once were 60 -75 million
By late 1800s less than 1,000 were left.
Hunted for hides and meat
Currently, about 500,000 wild and commercial bison
Overharvesting
Passenger Pigeon Was the most abundant bird in N. America.
Population estimates of over 3-5 million birds
Decline due to hunting and forest clearing.
Last one died in 1914.
Illegal Trade
$5 billion to $20 billion dollars annually.
Animals sold for parts, to be pets or medicinal value.
Example: tarsier and slow loris (pet trade) and rhino (medicinal values)
Legislation
Lacey Act (1900) Prohibited illegally harvested game animals across state lines.
Legislation
Convention on International Trade in Endangered Species (CITES)
Control international trade of threatened plants and animals
Agreed upon in 175 countries
Red List – countries must monitor threatened species on the list.
Other Solutions
Ecotourism visiting relatively undisturbed natural areas, intended as a low-impact and often small scale.
Provides Education, funds for
conservation, economic development of communities and fosters respect for other cultures
Other Solutions
Community Based Conservation (CBC)
incorporate improvement to the lives of local people while conserving areas through the creation of national parks or wildlife refuges
CBC Examples
Bird Nest Soup edible bird nest made by birds from their saliva
Harvested 2x/year
Outside of harvesting season groups of men that rotate every 10 days, stay near the cave.
Clips
Passenger Pigeons Clip Dramatic Tarsier - Video Clip Slow Loris Clip
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