Dates/Acts
What year was the Duck Stamp Act established?
1934
How much of the earth is covered in marine habitats
70%
What term describes physical differences between male and female animals?
sexually dimorphic
A forest ecosystem can only support a certain number of deer before resources become scarce. This maximum sustainable number is known as the ecosystem's
carrying capacity
What is the most specific taxonomic level used to classify organisms?
species
What act makes it a federal offense to transport unlawfully taken wildlife across state lines?
Lacey Act
What unique type of plant is often found in bogs?
carnivorous plants
What environmental factor primarily stimulates bird migration?
photoperiods
What is another common term for a 'controlled burn'?
Prescribed burn
What is the approximate mortality rate for waterfowl during their first year of life?
50%
This act established closed seasons for hunting migratory birds.
Weeks-McLean Act
How many inches of rainfall yearly do grasslands receive?
less than 35 inches
what is an example of a dabbling duck?
mallard or northern shoveler
What percentage of the United States' land area is covered by forests?
33%
Who is known for publishing the first textbook of wildlife management?
Aldo Leopald
The Pittman-Robertson Act provides funding to state wildlife from the sale of what items?
sporting arms and ammunition
Where do non-tidal marshes typically form?
in poorly draining areas along freshwater boundaries
Which type of ducks typically needs to run across the water to gain speed for flight?
diving ducks
What method involves walking along a linear path and counting organisms within a specified distance on either side to estimate population size?
transect counts
Which plant is described as an invasive shrub that grows on riverbanks and consumes large amounts of water?
saltcedar
The sales of what contributes to the financial aid provided by the Dingell-Johnson Act?
Fishing gear; boats; angler equipment
An oil spill that contaminates a wetland, making it toxic for birds and fish, primarily illustrates which environmental problem?
habitat degradation
The plumage male ducks molt into in mid-summer is known as what?
eclipse or basic plumage
How much carbon can a single tree absorb annually?
40 pounds
The organization originally known as the Bureau of Biological Survey is now called what?
US Fish and Wildlife Service