Increasing the reliability of citizen science campaign data for deforestation detection in tropical forests

    

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🌿 ECOSYSTEM: STRUCTURE, FUNCTIONS, UNITS, AND TYPES 🌍

An ecosystem is a complex system of interactions between living organisms (biotic factors) and non-living components (abiotic factors) in a specific environment. It functions as a self-sustaining unit where energy flows, and nutrients cycle to maintain life.

🔹 1. STRUCTURE OF AN ECOSYSTEM

The structure of an ecosystem is determined by the organization of biotic and abiotic components that interact to form a stable system.

A. Biotic Components (Living Organisms) 🦋🌱

These include all living organisms that are part of the ecosystem. They can be categorized as:

1. Producers (Autotrophs) 🌞🌿

   • These are green plants, algae, and certain bacteria that use photosynthesis or chemosynthesis to convert sunlight or inorganic substances into energy.
   • Example: Trees in forests, phytoplankton in oceans.

2. Consumers (Heterotrophs) 🦓🐆

   • These organisms depend on other organisms for food.
   • Classified into:
     • Primary Consumers (Herbivores): Eat plants (e.g., deer, rabbits).
     • Secondary Consumers (Carnivores): Eat herbivores (e.g., snakes, foxes).
     • Tertiary Consumers (Top Predators): Eat secondary consumers (e.g., lions, eagles).
     • Omnivores: Eat both plants and animals (e.g., humans, bears).

3. Decomposers (Saprotrophs) 🍄🦠

   • Microorganisms like bacteria and fungi that break down dead organisms and recycle nutrients into the soil.

B. Abiotic Components (Non-living Factors) 🌍☀️

These are the physical and chemical elements that support life in the ecosystem.

• Climatic Factors: Temperature, sunlight, humidity, rainfall.
• Edaphic (Soil) Factors: Soil type, minerals, pH level.
• Physical & Chemical Factors: Water, air, oxygen, carbon dioxide, nitrogen.

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🔹 2. FUNCTIONS OF AN ECOSYSTEM 🌱➡️🦌➡️🦁

The ecosystem performs essential functions for life on Earth, such as:

1. Energy Flow 🔄

• The Sun is the primary energy source.
• Energy flows from producers to consumers through the food chain and food web.

2. Nutrient Cycling (Biogeochemical Cycles) ♻️

• Carbon Cycle (CO₂ used in photosynthesis and returned through respiration).
• Nitrogen Cycle (conversion of atmospheric nitrogen into usable forms by bacteria).
• Phosphorus & Water Cycles (nutrient movement in ecosystems).

3. Ecological Balance & Homeostasis ⚖️

• Natural ecosystems maintain a balance between species through predation, competition, and symbiosis.

4. Waste Decomposition & Recycling 🦠

• Decomposers break down organic waste into nutrients for reuse.

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🔹 3. UNITS OF AN ECOSYSTEM 🔢

Ecosystems can be categorized into different units based on size and complexity:

A. Micro Ecosystem 🔬

• Small-scale ecosystems like ponds, aquariums, tree holes.

B. Meso Ecosystem 🌾

• Medium-sized ecosystems like forests, rivers, grasslands.

C. Macro Ecosystem 🌎

• Large ecosystems like oceans, continents, and the entire biosphere.

D. Artificial Ecosystem 🏙️

• Human-made ecosystems like farms, gardens, urban landscapes.

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🔹 4. TYPES OF ECOSYSTEM 🌏

Ecosystems are classified into natural and artificial types:

A. Natural Ecosystems (Self-Sustaining) 🌱

These occur naturally and function without human intervention.

1. Terrestrial Ecosystems (Land-based) 🌳

• Forest Ecosystem – Dense vegetation, wildlife, and high biodiversity (e.g., tropical rainforests).
• Grassland Ecosystem – Open lands with grass and herbivores (e.g., savannahs, prairies).
• Desert Ecosystem – Dry, harsh environments with adapted plants/animals (e.g., Sahara Desert).

2. Aquatic Ecosystems (Water-based) 🌊

• Freshwater Ecosystem – Rivers, lakes, ponds with aquatic plants/animals.
• Marine Ecosystem – Oceans, seas, coral reefs with high biodiversity.

B. Artificial Ecosystems (Human-Made) 🏢

• Agricultural Ecosystem – Farmlands growing crops for food production.
• Urban Ecosystem – Cities with artificial structures and green spaces.
• Aquaculture Ecosystem – Fish farms, man-made lakes.

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🔹 5. IMPORTANCE OF ECOSYSTEMS 🌍💚

🌱 Biodiversity Conservation – Supports millions of species.
💧 Water & Air Purification – Trees and plants clean the air and water.
🌾 Food & Agriculture – Provides food through natural cycles.
🔥 Climate Regulation – Forests act as carbon sinks to reduce global warming.
🦠 Medicine & Pharmaceuticals – Many medicines are derived from plants and microorganisms.

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🌿 Conclusion 🌏

Ecosystems are essential for life on Earth. Their structure and functions maintain ecological balance, support biodiversity, and sustain life processes. Protecting and conserving ecosystems is crucial to prevent climate change, biodiversity loss, and environmental degradation

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