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Conservation Biology

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QuestionAnswer
What are conservation biologists? Scientists in academia, private sector, and governmental agencies who provide reliable, scientific research on biological diversity & conservation. Their work results in action when applied to policy/management. Defined academically in the 1980s.
What are the components of genetic, species, and ecosystem diversity? Genetic: variation of genes within a singular species (all species on earth) Species: different species within a community Ecosystem: communities and interaction with chemical/physical environment.
What is ecology? The study of organisms and their relationship with the environment.
What is the estimate of species on earth? How many identified by science? Around 8-10 million, possible 1 billion. There are only about 2 million identified.
What is a tropic cascade? Ecological phenomenon triggered by the addition/removal of a top predator. Which causes changes in populations of prey/predators in food chains. Often results in dramatic change in ecosystem structures and nutrient cycling. Example: Yellowstone wolves.
What are ecosystem services? Set of functions that are beneficial to humans. Provisioning: Products obtained Regulating: Obtained for regulation Supporting: Necessary for other's production. Cultural: Non-material
What are ecosystem functions? The physiochemical/biological processes that help the ecosystem to maintain life. Examples include predation and nitrogen/water cycling.
Threats to biodiversity Habitat loss/degradation/fragmentation invasive species overharvesting/exploitation urbanization agriculture pollution
What is climate change? How is the climate changing? causes? impacts? refers to long-term shifts in temps. & weather patterns. Global warming is caused by greenhouse gases that trap the sun's heat and affects ecosystems. C: Generating power, cutting forests, and consuming too much. I: Increasing temp and species loss.
Useful terms: Keystone species- Critical in maintaining ecosystem structure (wolves, otters) Ecosystem engineers- Physically alter environment making changes in species present (beavers). Flagship species- Habitat restored to support popular animals (pandas).
Created by: ShosK
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