Conservation Flashcards
Phytoplankton blooms
accumulations of microscopic algae; many are beneficial (carbon fixing); can create anoxic areas
1607
Captain John Smith reported that the French were shipping 25000 beaver pelts per year to Europe
1630
The Massachusetts Bay Colony offered a bounty of one shilling for each wolf killed
1646
The city of PZortsmount, Rhode Island enacted the first closed season on deer hunting
1650
much of the beaver had been eliminated from the entire east coast
1748
South Carolina shipped 160000 deer pelts to England
1872
Yellowstone National Park
1900
Lacey Act
1918
Migratory Bird Treaty Act
1934
Migratory Bird Hunting and Conservation Stamp Act
1937
Federal Ain in Wildlife Restoration Act
1950
Federal Aid in Sport Fish Restoration Act
1972
Marine Mammal Protection Act
1973
Endangered Species Act
Endangered Species Act
passed in 1973 to protect and encourage population growth of threatened or endangered species
Examples of threatened species
Whooping cranes, bald eagles, peregrine falcons, grey wolves, elephant seals
What causes extinctions
- Habitat loss
- Introduced species
- Over-exploitation
- Pollution
______ species in the US are listed as endangered
1312
The average life span of a species
1-10 million years