Our Ecosystems By Grade 1: Rose.

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Presentation transcript:

Our Ecosystems By Grade 1: Rose

What are Ecosystems? Ecosystems are dynamic interactions between plants, animals, and other organisms, and their environment working together as a functional unit. An ecosystem can only accommodate up to a certain number of organisms at a given time since there are food, water and shelter to be considered.

Humans and the Ecosystems Humans and the ecosystems have a symbiotic relationship. We both give and take products from each other. Still, it is not for us to abuse the Earth.

Terrestrial Ecosystems Forest ecosystem Grassland ecosystem Desert ecosystem Mountain ecosystem

Terrestrial Ecosystem Forest ecosystem

Human Impact Negative Impact Deforestation Over-exploitation

Human Impact Positive Impact Genetic biodiversity Ecotourism (raising awareness)

Terrestrial ecosystems Grassland Ecosystem

Human Impact Negative Impact Overgrazing Loss of habitat for native species

Human Impact Positive Impact Creating of Wildlife Sanctuaries Re-introduction of native species

Terrestrial Ecosystem Desert Ecosystem

Human Impact Negative Impact Destructive mining (Gold and other precious stones) Extraction of Fossil Fuels

Human Impact Positive Impact Harvesting of Solar Energy instead of fossil fuels

Terrestrial Ecosystems Mountain Ecosystem

Human Impact Negative Impact Illegal Logging Destruction of natural habitats for native species

Human Impact Positive Impact Controlled Tourism Protection of Wildlife

Aquatic Ecosystems Pond / Lake ecosystem Ocean ecosystem River ecosystem Estuary ecosystem

Aquatic Ecosystems Pond Ecosystem

Human Impact Negative Impact Eutrophication Water contamination from heavy metals

Human Impact Positive Impact Environmental Management Pollution Control

Aquatic Ecosystems Ocean Ecosystem

Human Impact Negative Impact Overfishing Habitat Loss

Human Impact Positive Impact Artificial Reefs Protected Areas against Fishing

Aquatic Ecosystems River Ecosystem

Human Impact Negative Impact Human Waste Human Recreational Activities

Human Impact Positive Impact Creation of Dams and Canals Protection of Native Species

Aquatic Ecosystems Estuary Ecosystem

Human Impact Negative Impact Housing Projects Changing Natural Fresh Water Flow

Human Impact Positive Impact Mangrove Forests Protection of Breeding Grounds for Fishes