IMPACTS OF HUMAN ACTIVITIES ON ECOSYSTEMS

Short ppt of Human Activities

1. IMPACTS OF
HUMAN
ACTIVITIES ON
ECOSYSTEMS
By Shriranga S. Hegde
Course: SY BBA
Date: 29/08/2024

2. Human activities drastically impact
ecosystems.
Topics: Land Use, Pollution, Resource
Exploitation, Climate Change.
INTRODUCTION

3. HUMAN IMPACT ON
ECOSYSTEM
Overview of different types of
human activities impacting
ecosystems.
Introduction to key concepts:
biodiversity loss, habitat
destruction, and climate
change.

4. Rapid
urban
growth
replaces
natural
habitats
with
concrete
jungles.
Leads to
habitat
fragmentati
on and loss
of
biodiversity
.
Increased
human-
wildlife
conflicts.
LAND USE - URBANIZATION

5. Impact of agricultural
expansion on forests and
biodiversity.
Monoculture and soil
degradation issues.
LAND USE - AGRICULTURE

6. LAND USE -
DEFORESTATION
Large-scale deforestation for timber and
agriculture.
Effects on the carbon cycle and local
ecosystems.

7. POLLUTION - AIR
POLLUTION
Causes of air pollution:
industrial emissions, vehicle
exhaust.
Impact on ecosystems:
acid rain, respiratory
issues in wildlife.

8. Sources of water
pollution: industrial
waste, agricultural
runoff.
Consequences for
aquatic
ecosystems: toxic
contamination,
oxygen depletion.
POLLUTION - WATER
POLLUTION

9. Causes of soil pollution:
pesticides, heavy metals.
Impact on plant life
and soil
microorganisms.
POLLUTION -
SOIL POLLUTION

10. Effects of overfishing on marine
biodiversity.
Long-term consequences for
food security and ocean
ecosystems.
RESOURCE EXPLOITATION -
OVERFISHING

11. Environmental
impact of mining:
habitat
destruction,
water
contamination.
Case examples
of mining-related
ecosystem
degradation.
RESOURCE EXPLOITATION -
MINING

12. Effects of global warming: habitat
shifts, species migration.
Impact on weather patterns and
natural disasters.
CLIMATE CHANGE - INFLUENCE
ON ECOSYSTEMS

13. .
CASE STUDY
AMAZON RAINFOREST
Overview:
Location: South America, primarily Brazil.
Importance: World's largest tropical rainforest, crucial for global biodiversity and climate
regulation.
Key Points:
Deforestation: Rapid deforestation due to logging, agriculture, and infrastructure development.
Impact: Loss of habitat for countless species, including endangered ones.
Climate Effects: Increased carbon emissions contributing to global warming.
Biodiversity Loss: Significant decline in species diversity.
Example: Decline in populations of unique species such as jaguars and various bird species.
Indigenous Communities: Displacement of indigenous peoples who rely on the rainforest for
their livelihoods.
Visuals:
Include a map showing the location of the Amazon Rainforest.
Use before-and-after images to illustrate deforestation.
Add charts or graphs showing rates of deforestation or biodiversity loss

14. CASE STUDY
Great Barrier Reef
Overview:
Location: Coral Sea, off the coast of Queensland, Australia.
Importance: Largest coral reef system in the world, a UNESCO World Heritage site, and a
critical marine habitat.
Key Points:
Coral Bleaching: Increased sea temperatures leading to widespread coral bleaching.
Impact: Loss of coral cover, which affects marine species dependent on the reef.
Example: Massive bleaching events in recent years.
Marine Biodiversity: Decline in fish populations and other marine species.
Example: Decrease in the number of fish species like parrotfish and clownfish.
Conservation Efforts: Ongoing efforts to protect and restore the reef.
Example: Coral gardening and marine protected areas.
Visuals:
Include high-quality images of coral bleaching and healthy reefs.
Use infographics to show changes in coral cover over time.
Add maps highlighting the reef’s location and areas most affected by bleaching.

15. CONCLUSION
Sustainable practices in land use,
pollution control, and resource
management.
Importance of global cooperation and
conservation programs.

16. REFERENCES
1. Deforestation and Biodiversity:
- [World Wildlife Fund (WWF) - Amazon Rainforest](https://www.worldwildlife.org/places/amazon)
- [National Geographic - Amazon Rainforest](https://www.nationalgeographic.com/environment/article/amazon-rainforest)
2. Climate Impact:
- [NASA - Amazon Deforestation and Climate Change](https://earthobservatory.nasa.gov/features/AmazonDeforestation)
- [Global Forest Watch - Amazon](https://www.globalforestwatch.org/dashboards/country/BRA/)
3. Indigenous Communities:
- [Survival International - Amazon](https://www.survivalinternational.org/tribes/amazon)
Great Barrier Reef References:
1. Coral Bleaching and Biodiversity:
- [Great Barrier Reef Marine Park Authority](https://www.gbrmpa.gov.au/)
- [National Oceanic and Atmospheric Administration (NOAA) - Coral Bleaching](https://coralreef.noaa.gov/education/bleaching.html)
2. Conservation Efforts:
- [Australian Government - Great Barrier Reef Conservation](https://www.environment.gov.au/marine/great-barrier-reef)
- [Coral Triangle Initiative - Great Barrier Reef](https://coraltriangleinitiative.org/)
3. Marine Biodiversity:
- [Australian Institute of Marine Science - Reef Research](https://www.aims.gov.au/docs/research/research.html)
- [Marine Conservation Society - Great Barrier Reef](https://www.mcsuk.org/what-you-can-do/campaigns/great-barrier-reef/)