restoration ecologists seek to initiate or speed up the recovery of degraded ecosystems
What do restoration ecologist seek to do with degraded ecosystems?
100
the three main levels are genetic diversity, species diversity, and ecosystem diveristy.
What are three types of diversity
100
human activities are creating new challenges like climate change and environmental changes
What are human activities creating?
200
two strategies in biological restoration are bioremediation and biological augmentation.
What are two strategies in biological restoration?
200
genetic diversity comprises the individual genetic variation within a population and genetic variation between populations.
what can genetic diversity compromise?
200
human activity often removes nutrients from one part of the biosphere and adds them to another
What are humans doing with nutrients caused by construction?
300
using organisms-- usually prokaryotes, fungi, or plants-- to detoxify polluted ecosystems
What is bioremediation?
300
public awareness of the biodiversity crisis centers on species diversity
what crisis centers on species diversity?
300
nitrogen is the main nutrient lost through agriculture .
What is the main nutrient lost?
400
zinc, nickel, lead, and cadmium
What type of metal have plants and lichens adapted to?
400
threatened species are those that are considered likelu to become endangered in the bear future.
definition of threatened species
400
farming is an example of how even with the best intentions human activities are altering the environment through the enrichment of nutrients.
What is an example of how human activities that are altering the environment?
500
restoration ecologist can introduce such species to sites polluted by mining and other human activities and then harvest these organisms to remove the metals from the ecosystem.
what can restoration ecologist introduce certain species to?
500
if one population becomes extinct then a species may have lost some of the genetic diversity and this make microevolution possible
What can make microevolution possible?
500
earths supply of fixed nitrogen available to primary producers