Ecosystem
Biome
Ecosystem
Ecosystem
These abiotic components are divided into two primary categories:
The interaction and interplay between biotic and abiotic components are essential for the functioning and structure of ecosystems.
Natural Ecosystems: These are ecosystems that exist in their original, unaltered state without significant human intervention. They are shaped by natural processes and are often considered pristine environments. Examples include undisturbed forests, pristine wetlands, and unspoiled coral reefs.
Artificial Ecosystems: Artificial ecosystems are ecosystems that have been influenced or modified by human activities. Human intervention can range from urban development and agriculture to creating artificial lakes and urban parks. These ecosystems often exhibit features distinct from their natural counterparts due to human influence.
Terrestrial Ecosystems: Terrestrial ecosystems thrive on land and are primarily land-based. They include ecosystems such as forests, deserts, grasslands, and mountainous regions. The availability of water is typically limited in terrestrial ecosystems, and water can be a limiting factor for many species within these environments.
Aquatic Ecosystems: Aquatic ecosystems are those that are found in bodies of water, such as lakes, rivers, oceans, and ponds. These ecosystems are strongly influenced by the aquatic nature of their environment. Aquatic ecosystems can further be categorized into marine ecosystems and freshwater ecosystems, each with unique characteristics and species compositions.
The Flow of Energy: Ecosystems facilitate the flow of energy from one organism to another through feeding relationships. Producers capture energy from the sun and convert it into food, which is then transferred through a series of consumers. This energy flow sustains life within the ecosystem.
Cycling of Nutrients (Biogeochemical Cycles): Ecosystems play a vital role in recycling essential nutrients, such as carbon, nitrogen, and phosphorus. These cycles ensure that nutrients are continuously available to support plant and animal life.
Homeostasis (or Cybernetic) or Feedback Control Mechanisms: Ecosystems have feedback mechanisms that help maintain balance and equilibrium. When disturbances occur, ecosystems tend to restore themselves to a stable state, a process known as ecological succession or ecosystem development.
Niche:
Habitat:
Key Differences:
These threats are interrelated and often exacerbate one another, making it crucial to address them collectively. Ecosystem conservation and sustainable practices are essential to mitigate these challenges and ensure the continued health and functioning of ecosystems. Such efforts are not only vital for preserving biodiversity but also for supporting global food production and maintaining environmental stability.
180 videos|338 docs
|
1. What is an ecosystem? |
2. How does an ecosystem differ from a biome? |
3. What are the key components of an ecosystem? |
4. How are niche and habitat different? |
5. What are the threats to ecosystems? |
|
Explore Courses for UPSC exam
|