Chapter 11: Flashcards
Genetic diversity
The differences in DNA composition among individuals
Extinction
Occurs in the last member of a species dies a species ceases to exist
Extirpation
Extinction of a certain population but not the species globally
Background rate of extinction
Extensions before humans, that occurred one by one
Causes of biodiversity loss:
Habitat loss climate change pollution over harvesting invasive species Human population
Red list
A list on current endangered species by the World Conservation Union (IUCN)
Biophilia
Human beings have instinctive love for nature and feel emotional bond with living things
Benefits of biodiversity
- Provides ecosystem services
- Maintains ecosystem function
- Enhances food security
- Organisms provide drug and medicine
- Economic benefit
- People seek connection with nature
Conservation biology
The scientific discipline devoted to understanding the factors, forces, and processes that influence the loss protection and restoration of biological diversity
Endanger species act (ESA)
Passed in 1973, the primary legislation for protecting biodiversity in the US. Prevents govt and citizens for destroying species and habitats
Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES)
1973, protects endangered species by banning the international transport of their body pats
Convention on Biological Diversity
In 1992, A treaty outlining importance of conserving biodiversity agreed to by the leaders of many nations
Captive breeding
Zoos and botanical gardens where individuals can we raised and reintroduced into the wild
Biodiversity hotspots
Areas that support an essentially great diverse city of species, usually endemic species
debt for nature swap
Conservation organizations raise money and offered to pay off a portion of developing nations international debt in exchange for a promise by the nation to support biodiversity