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MIDTERM 2: BIOLOGY
conservation biology (fire ecology and convservation)
| Question/Term | Answer/Definition |
|---|---|
| Evolution | Changes of gene frequency in a population |
| Mutation | random change in a species' chromosomes |
| Natural Selection | "Survival of the fittest" |
| Gene Drift | Change in allele frequencies due to random chance |
| Migration | Individuals of a population move to a separate population (+ genetic diversity) |
| Threats to biodiversity impact the future of evolution | With less biodiversity (genetic, species, ecological) there won't be as strong of a gene pool because animals/plants are more at risk to harmful elements. |
| Conservation actions impact the future of evolution | actions aimed to protect the environment OR flagship species allow for all types of species to attempt to thrive and survive into the future. |
| How long has life been evolving? | Around 3 billion years |
| How does fire as a disturbance increase biodiversity across a landscape? | It allows landscape heterogeneity which is a complex makeup of species in an area. Fire promotes biodiversity because it creates unique habitat structures and allows for greater species richness. |
| Positive impacts of controlled fires for biodiversity | clears out dead plants/animals, some species only live in young forests, releases nutrients in soil, and burns off invasive species. Fire creates different pockets of land varying in growth -- this allows for different types of animals to thrive. |
| Key terms | Ecosystem engineers: physically alter the environment (beavers_ Keystone species: maintain environment (yellowstone wolves) Flagship species: coservation efforts made to support popular animals (pandas) Invasive species: non-native species that disrupt |
| Endangered species act | protections for wildlife -- prepares and implements plans for recovery, coordinates local, state, and national governments, Protects (sub)species and populations. |
| 3 phases of ESA | Identification- Figuring out what species are in danger Protection- Short term recovery Recovery- long term plans for species to thrive |
| National environmental Policy Act | Broad national framework for protecting the environment -- forces thought before undertaking major federal action concerning the environment. |
| Endangered species (& examples) | species of animals/planst seriously at risk of extinction. Examples: sun bear, summers' poison frog, Siamese rosewood. |
| Microplastics: How did people respond initially to single-use plastic? | Consumers found it difficult to throw out products after one use |
| What drives the demand for plastic consumption globally- consumers or industry? | The industry pushes for plastic consumption because it allows them to make more money because consumers keep on purchasing it |
| Name one way plastic pollution can interact with climate change | plastic releases greenhouse gases -- contributing to the greenhouse gas effect |
| Phenology | study of periodic events in biological life cycles and how these are influenced by seasonal and interannual variations in climate, as well as habitat factors (such as elevation). 3 aspects of phenology: relationship over time, seasonal change, climate |
| Herbarium specimen: which items need to be included in the label? | Scientific name location date description species surrounding |
| What is the importance of herbarium specimens for conservation? | Specimens help identify and assess what exists by documenting everything, allowing study of changes over time |
Created by:
ShosK
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