2.1 Biodiversity by Kelly DiGeronimo

Information

kdigeronimo2 — 2024-10-15 12:37:35 UTC

3 levels of biodiversity

Habitat biodiversity - A wide range of unique habitats within a biome

Species biodiversity - A high number of species

Species evenness – is each species evenly distributed?

Genetic biodiversity - One population contains a wide range of different genes, so the organisms have a variety of different traits.

Ways to lose biodiversity

Founder effect

Bottleneck effect

Habitat loss

Small, isolated islands

Human disturbances

Natural disturbances

Trophic cascades (like sharks and coral question)

Ways to increase biodiversity

Wildlife corridors / gene flow

Limiting human disturbances

Reintroducing predators and keystone species

Benefits of biodiversity

Resilience to disturbances

More ecosystem services

Difference between species richness and evenness

kdigeronimo2 — 2024-10-15 12:39:51 UTC

Species richness is just the total number of different species in an area. It doesn't matter what the population size of each species is

Species evenness takes into account if the relative amount of these species is balanced. So there could be 3 total species, but 100 of one, 50 of one, and 2 of another, so species evenness would be low.

Propose one solution to increasing biodiversity in suburban areas and explain how it would increase genetic diversity

kdigeronimo2 — 2024-10-15 12:40:39 UTC

Fake FRQ!

kdigeronimo2 — 2024-10-15 12:48:19 UTC

Identify

Propose a solution

Describe

Explain

Bottleneck effect vs. founder effect

kdigeronimo2 — 2024-10-29 16:35:46 UTC

How keystone species impact biodiversity

kdigeronimo2 — 2024-10-29 16:36:00 UTC

Importance of predators to producer biodiversity

kdigeronimo2 — 2024-10-29 16:36:17 UTC

Relationship between habitat diversiy and the evolution of specialists

kdigeronimo2 — 2024-10-29 16:36:34 UTC

Relationship between habitat fragmentation, biodiversity, and wildlife corridors

kdigeronimo2 — 2024-10-29 16:36:51 UTC

Examples of natural disturbances that decrease biodiversity

kdigeronimo2 — 2024-10-29 16:37:17 UTC

Examples of anthropogenic activities that decrease biodiversity

kdigeronimo2 — 2024-10-29 16:37:30 UTC

How do natural disruptions impact biodiversity? What are some examples? Are they ever more powerful than anthropogenic disruptions?

2024-10-29 18:41:21 UTC

Relationship between habitat fragmentation, biodiversity, and wildlife corridors

2024-10-29 18:41:43 UTC

Importance of predators to producer biodiversity

2024-10-29 18:41:53 UTC

Examples of natural disturbances that Decrease biodiversity

2024-10-30 13:00:41 UTC

Examples of natural disturbances that impact biodiversity include forest fires, flood, tornadoes, volcanoes, and hurricanes. These disturbances can complete the wipe out of species or parts of populations for example forest fires can completely burn areas down to the initial stage of succession. It can also cause a bottleneck effect where species populations are dramatically decreased due to natural disaster.

Relationship between habitat fragmentation, biodiversity, and wildlife corridors

2024-10-30 13:00:48 UTC

Habitat fragmentation has a low level of biodiversity because the areas are split up and resources cant be shared between the different fragments. However, the wildlife corridors are used to help increase biodiversity between these fragmentation's. This is because they allow for resources to travel between the fragments as well as organisms traveling between locations.

Importance of predators to producer biodiversity

2024-10-30 13:01:07 UTC

Predators regulate the environment, according to the Green World Hypothesis. They do this by keeping the balance of each trophic levels population in the community. With the absence of a predator trophic Cascade would occur and decrease producer biodiversity.

Bottleneck effect vs. founder affect

2024-10-30 13:01:09 UTC

Bottleneck effect is when a random event removes all/most of the alleles and species in an environment, while founder effect is apart of the species move to a new area limiting genetic diversity in both "new" populations setting new genes for them both. and ultimatly individuals that underwent the founder effect have new characteristics then the original population. There similar in the way that both events result in a population decreasing population and decrease in genes.

How keystone species impact biodiversity.

2024-10-30 13:01:16 UTC

Keystone species can positively affect their ecosystem by balancing the organisms under them so other organisms can exist. For example the Sea otters regulated the Sea urchins which would then prevent the urchins from eating all the kept. In the green world hypothesis it was proven that with a loss of a key stone species a tropic cascade would occur due to the fact that predators regulate the food chain.

Relationship between habitat diversity and the evolution of specialists.

2024-10-30 13:02:13 UTC

high habitat biodiversity results in more specialist species as there are more resources available for them
- species become accustomed to a specific resource
when there is a low habitat biodiversity, there are not many specialist species as there is not a wide variety of different resources for them. Species are generalists since they need to be able to use a wide variety of resources

Propose a solution to low biodiversity in yellowstone national park after the removal of wolves. Justify your solution.

kdigeronimo2 — 2024-10-30 13:03:11 UTC

Describe the distinction between Habitat, Species, and Genetic diversity.

2024-10-30 13:03:34 UTC

Identify and describe three ways that biodiversity can be measured

Explain the affect of a generalist invasive species on genetic diversity in the population.

2024-10-30 13:04:04 UTC

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How can the Genetic Biodiversity in a large population be different form that of a far smaller population

Identify a keystone species in an aquatic ecosystem and explain the effects of removing this species on biodiversity.

2024-10-30 13:04:22 UTC

Propose a solution to decreased species diversity as a result of habitat fragmentation. Justify your solution.

2024-10-30 13:04:35 UTC

explain why the suppression of forest fires decreases biodiversity.

2024-10-30 13:04:38 UTC

Based on the table show above, identify which ecosystem is the most and least biodiverse

2024-10-30 13:04:57 UTC

How does the graph show how different organisms thrive in sunlight than others.

2024-10-30 13:05:02 UTC

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Describe the effect that invasive generalist species have on native specialist species' biodiversity in a specific island.

2024-10-30 13:05:17 UTC

Propose a solution to lowering an invasive beetle species that eat and kill trees. Justify your answer.

Identify a characteristic of an island that increases its biodiversity.

2024-10-30 13:05:27 UTC

Describe how can a loss of keystone species impact other organisms within an ecosystem.

2024-10-30 13:05:46 UTC

Describe how higher biodiversity increases the richness and evenness in a population.

2024-10-30 13:05:58 UTC

Describe how the Bottleneck effect and the founder affect both affect genetic biodiversity in different ways?

2024-10-30 13:06:09 UTC

Fake FRQ

2024-10-30 13:06:22 UTC

Based on the table above, identify which species is a specialist and which is a generalist

Describe why generalists are more likely to become invasive species than generalists

2024-10-30 13:06:37 UTC

Fake FRQ

2024-10-30 13:07:21 UTC

Identify what a bottleneck effect is

Propose a Soultion to a trophic Cascade where a keystone species in this case (otters) was added and

Decribe what a Keystone Specices and how does it cause a Trophic Cascade

Explain How Human Disturbances affect populations

propose a solution

2024-10-30 13:07:34 UTC

Urbanization occurred on land that was home to a bear population. There is less room for these bears to Rome and it is harder for bears to find resources. propose a solution to help bears gain access to more resources.