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Conservation Biology and Biodiversity, Questions - Coggle Diagram
Conservation Biology and Biodiversity
The Biodiversity Crisis
exists at multiple levels. Measurements include: #'s of species, genetic diversity, chemical diversity, ecosystem diversity
biodiversity is higher in the tropics
recovery times after mass extinction vary but have been up to 30 million years
Humans have generated diversity in domestic animals, plants, fungi
biodiversity is not evenly distributed on earth
5 mass extinctions
most extinctions are happening without observation
Threats to Biodiversity
core threats are human population growth and unsustainable resource usage.
climate change, overharvesting also threats
elimination of a forest, desert, grassland, body of water etc. will kill the individuals in the species
human transportation of people and goods has increased the introduction of species into new ecosystems
climate change will cause some climates to completely disappear.
The Importance of Biodiversity to Human Life
crop diversity is being lost. less food security
ecosystems provide: pollination, nutrient cycling, pest control, soil development
used medicines derived from organisms: secondary plant compounds, animal toxins, antibiotics.
more biodiversity, more resistance to disease
seed banks are kept as a way to maintain crop diversity.
Preserving Biodiversity
DNA barcoding help facilitate the cataloging of the planets biodiversity
attempts have been made to limit greenhouse gas emissions
11% of the earth's land is protected
habitat restoration could restore ecosystems back to prior biodiversity levels
growing urbanization of the human pop. poses to be a challenge to biodiversity
Questions
secondary plant compounds are used for what?
Less biodiversity results in what?
what are the core threats to biodiversity?