Sustainability
preserve forests
These species are ones that have so few individual survivors that the species will soon be extinct
Endangered
National Wildlife Refuge System oversees federal lands dedicated to
wildlife conservation
A wildlife biologist originally tagged 20 geese in Fletcher Park. Later, over a month-long period, traps caught 100 geese. Of those 100, 18 were found to have tags. Based on this information, what is the estimated population of the geese in Fletcher Park?
Population Estimate = [(Total Number Captured) × (number marked)] ÷ (Total number captured with mark)
111
number of seed banks in the world
1400
Overgrazing is a threat to
grasslands
What the United States has in place to identify and protect limited species
Endangered Species Act
person trained to search tropical forests and other ecosystems to find plants and animals that can be used to make medicinal drugs
bioprospector
Because of dumping waste into the world’s waters, and fertilizers entering coastal ecosystems, how many ocean ‘dead zones’ have been produced?
400
primary role is pollination
honey bees
big cats, elephants, rhinos, gorillas, chimps, orangutans
some animals likely to be extinct within our lifetime
asteroids, volcanos, climate change can cause
extinctions
What are Burmese python, kudzu, water hiacynth examples of
invasive species
______ species have enough individuals to survive the short term but will likely get moved to the endangered list in the near future.
threatened species
Permian-Triassic extinction
largest mass extinction
what biodiversity tends to do after a mass extinction
return to equal or higher levels
the biggest factor in the mass extinction that is starting now is
What method divides an area into equal sized pieces, randomly select a few quadrats and record the number of species or organisms in each.
quadrat method
5 is the number of ______________ in Earth's history
mass extinctions
poaching, logging, spread of invasive species, increased tourism, loss of native species are threats to
National Parks
Permian-Triassic extinction
largest mass extinction
in the largest mass extinction, _______% of all species and ____% of marine species were lost
(90/96, 80/72, 64/80)
90/96
The Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) and the Convention on Biological Diversity (CBD) are both ______ treaties/conventions whose purpose is to protect endangered and threatened species.
(national, international, Russian, European)
international
In 2015, ___ of marine fish stocks were being harvested at unsustainable levels; ___ were maximally sustainably fished, with just ___ harvested at levels lower than what can be sustainably fished.
(33/60/7), (60/33/7), (7/33/60)
33/60/7
dam building, dredging, trawler fishing, commercial fishing, human activity, pollution are threats to
aquatic ecosystems