Human Impact on Ecosystems and Species

The video discusses how environmental changes impact species distribution, focusing on abiotic factors like temperature, water availability, and atmospheric gases. It provides examples of geographic and seasonal variations, such as the adaptations of different fox species and animal migrations. The video also highlights human activities affecting abiotic factors, like pollution impacting lichens.

What are the three abiotic factors mentioned that can affect the distribution of species?

• Availability of water, soil type, and atmospheric gases

• Temperature, availability of water, and atmospheric gases

• Temperature, availability of water, and soil type

• Temperature, soil type, and atmospheric gases

Why does the desert fox have large ears?

• To store water

• To camouflage with the environment

• To increase surface area for heat loss

• To hear better in the desert

What is the main reason for the red fox's disappearance as we move further north?

• Human encroachment

• Lack of food

• Colder temperatures

• Increased competition

Which plant is adapted to live in areas where water is scarce?

• Cacti

• Moss

• Pine trees

• Ferns

What triggers the migration of wildebeest across Africa?

• Food scarcity

• Predator presence

• Rainfall patterns

• Temperature changes

Which bird migrates from the UK to Africa during the winter months?

• Eagles

• Swallows

• Sparrows

• Robins

How does human activity affect lichens?

• By increasing their growth

• By reducing their numbers due to air pollution

• By changing their color

• By providing more nutrients

What is a consequence of sewage entering streams?

• Decrease in dissolved oxygen levels

• Increase in fish population

• Increase in water temperature

• Decrease in water clarity

Which species is sensitive to low oxygen levels in water?

• Mayfly larvae

• Salmon

• Turtles

• Frogs

Which abiotic factor is influenced by burning fossil fuels?

• Atmospheric gases

• Temperature

• Water availability

• Soil composition