Biodiversity and Ecosystem Dynamics

The video tutorial by Mr. Smeeds covers the introduction to biodiversity, explaining its levels and importance to ecosystems. It discusses ecosystem, species, and genetic diversity, highlighting how each contributes to ecosystem health. The tutorial also covers species richness and evenness, genetic diversity's role in adaptation, and the effects of bottleneck events and inbreeding. Finally, it emphasizes the importance of biodiversity in ecosystem resilience, enabling recovery from disturbances.

What is the largest scale of biodiversity?

• Habitat diversity

• Species diversity

• Genetic diversity

• Ecosystem diversity

Which of the following best describes species richness?

• The balance of population sizes among species

• The total number of different species in an ecosystem

• The variety of habitats in an area

• The number of different genes in a population

Why is species evenness important in measuring biodiversity?

• It measures the total number of species

• It reflects the balance of species populations

• It shows the genetic variation within a species

• It indicates the number of habitats available

How does genetic diversity benefit a population?

• It ensures even distribution of species

• It helps populations adapt to environmental changes

• It reduces the need for diverse habitats

• It increases the number of species in an ecosystem

What is a bottleneck event?

• A strategy to balance species evenness

• An environmental disturbance reducing population size

• A process that increases species richness

• A method to enhance genetic diversity

What is a potential consequence of inbreeding in small populations?

• Increased species richness

• Higher genetic diversity

• Decreased fitness due to harmful mutations

• Improved ecosystem resilience

How did scientists help the Florida panther population recover?

• By reducing the number of predators

• By introducing pumas to increase genetic diversity

• By enhancing the species evenness

• By increasing the number of habitats

What is ecosystem resilience?

• The ability of an ecosystem to maintain species richness

• The capacity to return to its original state after a disturbance

• The process of increasing genetic diversity

• The balance of species evenness in an ecosystem

Why is high species diversity important for ecosystem recovery?

• It ensures more genetic diversity

• It balances the population sizes of species

• It provides a variety of plants to stabilize the soil

• It increases the number of habitats

What role do plants play in ecosystem resilience?

• They balance species evenness

• They increase genetic diversity

• They reduce the impact of bottleneck events

• They prevent soil erosion and provide shelter