"Understanding Ecosystems: Balance in Nature"
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- 3. 3 Ecosystem Ecosystem organisms and the physical environment with which they consists of all the interact.
- 4. 4 Ecosystem Structure Ecosystem consists of two major components: (1) Biotic components (2) Abiotic components
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- 6. Energy Flow in Ecosystem
- 7. Biogeochemical Cycles Biogeochemical cycles refer to the flow of chemical elements and compounds between organisms and the physical environment. Chemicals taken in by organisms are passed through the food chain and come back to the soil, air, and water through mechanisms such as respiration, excretion, and decomposition.
- 9. Carbon Cycle
- 10. Nitrogen Cycle
- 11. 11 Types of Ecosystems ▧ Terrestrial Ecosystem ▧ Aquatic Ecosystem Tundra Ecosystems Desert Ecosystem Grassland Ecosystems Forest Ecosystems Marine Ecosystem Freshwater Ecosystem
- 12. 12 Terrestrial Ecosystem Aquatic Ecosystem
- 13. 13 Which ecosystem do we live in? We live in a terrestrial ecosystem. This is the ecosystem where organisms interact on landforms. Examples of terrestrial ecosystems include tundra, taigas, and tropical rainforests. deserts, grasslands and temperate deciduous forests also constitute terrestrial ecosystems Which is the largest ecosystem in the world? The largest ecosystem in the world is the aquatic ecosystem. It comprises freshwater and marine ecosystems. It constitutes 70% of the surface of the earth.
- 14. 14 Ecosystem Destruction Causes the destruction of ecosystem? Pollution is one of the main causes of ecosystem destruction. Pollution can deplete resources and drive away local animal populations. Significant sources of pollution include trash, carbon emissions, oil spills and pesticides. Human activities that destroy the ecosystem? Some human activities that cause damage (either directly or indirectly) to the environment on a global scale include population growth, overconsumption, overexploitation, pollution, and deforestation,
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- 16. 16 Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water. These negative impacts can affect human behavior and can prompt mass migrations or battles over clean water. Human Impacts on the Environment
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- 19. 19 What will be the impact of ecosystem destruction? •Increased flooding due to the erosion of soil and lack of trees. •Climate change causes the sea levels rising due to the melting of the glaciers. •More a likelihood that natural disasters such as tsunamis, earthquakes, droughts will be commonplace. •Disruption of the food chain when the apex predators become extinct.
- 20. 20 •Food shortage as the lands become barren and the oceans become devoid of fish and other marine life •Loss of biodiversity as a whole species of living things disappear due to deforestation •Pollution will eventually become unmanageable and affect the health of the human population. Rising temperatures may be too much to bear for every living organism on the planet. •Water shortage – the supply of fresh drinking water is limited with only a few water bodies being fit for human consumption.
- 21. 21 Need it to get the food we eat, the water we drink and to transform raw materials into our everyday products. So in order to keep our living conditions, it’s truly important that we preserve natural ecosystems. Why Is Preserving Ecosystems Important?
- 22. 22 • Food (including cattle and seafood) • Pharmaceuticals, biochemicals, and industrial products • Energy (sunlight, hydropower, biomass) Ecosystem Services
- 23. 23 How to Protect the Ecosystem & Maintain Ecological Balance