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Conservation Ecology

ICSE · Class 12 · Environmental Science

Quick revision notes for Conservation Ecology — ICSE Class 12 Environmental Science. Key concepts, formulas, and definitions for last-minute revision.

70 questions41 flashcards5 concepts

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Key Topics to Revise

1

Ecosystem and its Importance

  • The term ecosystem was coined by Tansley in 1935.
  • An ecosystem is a self-sustaining, self-regulating structural and functional unit of nature made up of living beings and their physical environment.
  • An ecosystem is an open system: it receives solar energy, transfers energy from one trophic level to another, and releases waste matter.
2

Habitat Loss and Genetic Erosion

  • Habitat loss is the greatest threat to biodiversity.
  • Forests are cut and natural habitats are converted into agricultural land, roads, pipelines, and industrial areas.
  • Tropical rain forests have depleted from about 14% to 6%.
3

Forests, Conservation, and Indian Forest Status

  • India has 19.4% of its land surface, or 6,37,293 km², under forest cover, down from 30% at the beginning of the 20th century.
  • The National Forest Policy (1988) recommends 33% forest cover overall and 67% in hills.
  • Dense forest cover is 11.5%, open or degraded forest cover is 7.8%, and mangroves occupy only 0.1%.
4

Environmental Ethics and Social Forestry

  • Environmental ethics is the moral responsibility of humans toward conservation of forests and the environment.
  • In India, people say 'Ahimsa parmo dharma', value compassion for living and non-living things, consider greed a sin, and worship big trees like Peepal and Banyan while growing Neem and Tulsi around ho
  • Social forestry means management and protection of forests and afforestation on barren lands.

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Full Notes

Key Concepts

Ecosystem was coined by TansleyHabitat loss is the greatest threatGenetic erosion is the reductionForests regulate climateThe Indian Forest Act

Frequently Asked Questions

What are the important topics in Conservation Ecology for ICSE Class 12 Environmental Science?
Conservation Ecology covers several key topics that are frequently asked in ICSE Class 12 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Conservation Ecology — ICSE Class 12 Environmental Science?
Understand the core concepts first, then work through the 70 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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All 8 chapters — ICSE Class 12 Environmental Science Revision Notes

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