Features of the Antartic Ecosystem
Geography: Cambridge International GCSE (2027 Exams), topic 3.1.1
Characteristics of the Antarctic Ecosystem
The Antarctic ecosystem is located around the South Pole, mainly on the continent of Antarctica and its surrounding ocean. The Antarctic ecosystem has unique features.
Extreme climate conditions
- The Antarctic ecosystem experiences the coldest temperatures on Earth, often below -60°C.
- The wind speeds can reach over 200 km/h, increasing the harshness of the environment.
- Humidity is very low, and precipitation mainly falls as snow, keeping the region dry.
- The Antarctic ecosystem has long, dark winters and continuous daylight in summer, affecting living organisms.
Limited biodiversity
- The Antarctic ecosystem supports few plant species, mainly mosses, lichens, and algae.
- Animals include penguins, seals, krill, and a few birds, all adapted to the cold.
- There is low species diversity due to freezing temperatures and ice coverage.
Impact of seasonal changes
- The Antarctic ecosystem adapts to extreme daylight variation, influencing breeding cycles and foraging.
- Summer brings more light and open water, increasing productivity in the Antarctic ecosystem.
- Open water means areas of the ocean or sea that are not covered by ice.
- Winter's darkness and ice expansion reduce food availability in the Antarctic ecosystem.
Test yourself on Features of the Antartic Ecosystem
How does Antarctica remain dry despite snow?
List the extreme climate conditions of the Antarctic ecosystem
What types of plants survive in Antarctica?