Conservation of Plants and Animals
Focused last-minute revision notes with clear concepts, exam traps, key comparisons and compact practice.
Chapter Snapshot
- Deforestation is large-scale removal of forest vegetation.
- It can cause habitat loss, biodiversity decline, soil erosion, reduced water retention and changes in climate.
- Protected areas include wildlife sanctuaries, national parks and biosphere reserves.
- Flora refers to plants; fauna refers to animals of an area.
- Endemic species are naturally restricted to a particular geographical area.
- The Red Data Book records information about threatened species.
- Migration is seasonal movement of animals from one region to another.
- Reforestation restores tree cover; natural regeneration and planned planting can both contribute.
- Conserving paper helps reduce pressure on forests.
What You Will Learn
- Explain causes and consequences of deforestation
- Differentiate sanctuary, national park and biosphere reserve
- Define flora, fauna and endemic species
- Explain the purpose of Red Data Book
- Describe migration
- Explain reforestation and paper recycling
- Relate biodiversity conservation to ecosystem stability
Last-Minute Chapter Map
Different protected-area categories conserve species and habitats at different scales and levels of protection.
1. Deforestation
Deforestation means removal of forest cover on a large scale. Causes include clearing land for agriculture, buildings, roads, mining, timber and fuelwood. Forest fires and some natural events can also destroy vegetation.
2. Consequences
Forests protect soil, store carbon, influence local water cycles and provide habitat. Their loss can increase soil erosion, reduce water retention, increase atmospheric carbon dioxide, disturb rainfall patterns and push species towards extinction.
3. Biodiversity
Biodiversity means the variety of living organisms in an area. Every species participates in food webs, nutrient cycling or other ecological interactions, so even small or less familiar organisms can matter.
4. Protected Areas
A wildlife sanctuary protects wild animals and habitats while allowing some regulated human activity. A national park generally provides stronger protection to the whole ecosystem. A biosphere reserve is a larger conservation area that may include core protected zones and surrounding regions where sustainable human activity is managed.
5. Flora, Fauna and Endemic Species
Flora means plant life and fauna means animal life of a region. An endemic species occurs naturally only in a limited geographical area, making habitat destruction especially dangerous for it.
6. Threatened Species and Migration
The Red Data Book compiles information on species at risk. Migration is regular seasonal movement, often for food, breeding or favourable climate. Migratory routes and resting sites also need protection.
7. Reforestation and Paper Conservation
Reforestation means restoring forest vegetation in deforested areas. It may occur through natural regeneration or planned planting. Using paper efficiently, reusing notebooks where possible and recycling paper can reduce demand for fresh wood pulp.
Protected Areas
| Type | Main Idea | Scale / Protection |
|---|---|---|
| Wildlife Sanctuary | Protect wildlife and habitat | Some regulated human activity may occur |
| National Park | Protect whole ecosystems | Generally stricter protection |
| Biosphere Reserve | Conserve biodiversity across a large landscape | May include core, buffer and managed-use zones |
Exam Focus
Must Revise Before the Exam
- Deforestation causes and effects
- Biodiversity
- Sanctuary vs national park vs biosphere reserve
- Flora and fauna
- Endemic species
- Red Data Book
- Migration
- Reforestation
- Paper recycling
Common Mistakes
Key Terms
Key Terms
Quick Revision
Quick Revision
- Deforestation removes habitat and can increase erosion and climate stress.
- Biodiversity is the variety of life.
- Sanctuary, national park and biosphere reserve are protected-area categories.
- Flora = plants; fauna = animals.
- Endemic species have restricted natural distribution.
- Red Data Book records threatened species.
- Reforestation restores tree cover.
- Paper conservation can reduce pressure on forests.
Practice Questions
Plants of a particular area are called:
A. fauna
B. flora
C. endemic only
D. migrants
View Solution
Correct Answer: B. flora
Flora refers to plant life of a region.
A species restricted naturally to one geographical area is:
A. endemic
B. domestic
C. migratory
D. invasive
View Solution
Correct Answer: A. endemic
Endemic species have a naturally limited distribution.
Which is generally the largest conservation category among these?
A. biosphere reserve
B. single nest
C. zoo cage
D. garden
View Solution
Correct Answer: A. biosphere reserve
Biosphere reserves cover large landscapes and may include multiple protection zones.
Reforestation means:
A. removing trees
B. restoring forest vegetation
C. mining forest soil
D. building roads
View Solution
Correct Answer: B. restoring forest vegetation
Reforestation restores tree cover in deforested areas.
How can deforestation increase soil erosion?
View Solution
Tree roots hold soil and canopy reduces direct impact of rain. Removing vegetation leaves soil exposed to wind and flowing water.
Differentiate endemic and endangered.
View Solution
Endemic describes geographic restriction; endangered describes a high risk of extinction. A species can be both, either or neither.
Why is protecting one famous animal not enough to conserve a forest ecosystem?
View Solution
The animal depends on prey, plants, water, shelter, microorganisms and other species. Conserving the whole habitat and food web is necessary.
Chapter Summary
Chapter Summary
- Deforestation removes habitat and can increase erosion and climate stress.
- Biodiversity is the variety of life.
- Sanctuary, national park and biosphere reserve are protected-area categories.
- Flora = plants; fauna = animals.
- Endemic species have restricted natural distribution.
- Red Data Book records threatened species.
- Reforestation restores tree cover.
- Paper conservation can reduce pressure on forests.