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Biodiversity and Conservation

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59 Questions

What is the term given to the total number of species of plants, animals, and microorganisms living on the earth?

Biodiversity

Which of the following scientists is credited with popularizing the term biodiversity?

Edward O. Wilson

What is the approximate number of species of fishes found on earth?

28,000

What is the term used to describe the variety of different species within a given ecosystem?

Species diversity

Which level of biodiversity involves the variety of genes within a species?

Genetic diversity

What is the term used to describe the variety of ecosystems and biomes on the planet?

Ecological diversity

What is the approximate number of species that have become extinct in the last 20 years?

27

What percentage of mammal species are facing the threat of extinction?

23%

What is the primary reason for the 6th mass extinction of species?

Anthropogenic activities

What is the estimated rate of species extinction compared to natural extinctions?

100 to 1,000 times faster

What is the potential consequence of continuing the present trends in biodiversity loss?

Nearly half of all species will be wiped out

What is the primary focus of in-situ conservation strategies?

Preserving entire ecosystems and their biodiversity on site

What is the primary criterion for designating hotspots?

Degree of species richness and endemism

Approximately what percentage of the world's land area do hotspots cover?

2%

What is the estimated percentage decrease in mass extinction that could be achieved by protecting hotspots?

30%

Which of the following is NOT a type of in-situ conservation strategy?

Seed banks

Which of the following regions in India is NOT a designated hotspot?

Thar Desert

What is the primary goal of ex-situ conservation?

To preserve threatened species in controlled environments

What is cryopreservation used for in conservation?

To preserve threatened species gametes in viable and fertile conditions

What was the outcome of the 2002 World Summit on Sustainable Development?

A pledge by 190 countries to reduce biodiversity loss by 2010

What is the main difference between in-situ and ex-situ conservation?

In-situ conservation involves preserving species in their natural habitats

Why is biodiversity conservation considered a collective responsibility of all nations?

Because biodiversity knows no political boundaries

What is the purpose of seed banks in conservation?

To preserve seeds of different genetic strains of commercially important plants

What is the primary purpose of maintaining national parks?

To preserve and protect wildlife and their habitats

What is the main difference between national parks and wildlife sanctuaries?

National parks do not allow human activities, while wildlife sanctuaries allow some human activities

Which of the following species is protected in the Khangchendzonga National Park?

Snow leopard

What is the name of the first national park in India?

Jim Corbett National Park

In which year did the protection of Elephants start in Simlipal Sanctuary?

1991

What is the total number of Biosphere reserves in India?

18

What is the primary factor contributing to the high diversity in tropical regions?

Higher solar energy received

What is the estimated number of insect species yet to be discovered and named in the tropical Amazonian rain forest?

At least two million

What is the characteristic of tropical regions that leads to greater species diversity?

Less seasonal and relatively constant climate

What is the reason for the difference in species diversity between tropical and temperate regions?

Temperate regions have more frequent glaciations

What is the total number of bird species found in the Columbia Tropical region?

1,400

What is the primary reason for the high species diversity in tropical regions?

Stable conditions and speciation

What is the approximate number of plant and animal species globally?

More than 1.5 million

What is the term used to describe species that play a critical role in the functioning and stability of the entire ecosystem?

Keystone species

What percentage of the world's land area does India occupy?

2.4%

What is the term used to describe the variety of ecosystem?

Ecological diversity

What is the result of the complete disappearance of a species?

Loss of genetic information

How many biogeographical regions are there in India?

10

What is the primary cause of anthropogenic extinction?

Human activities

What is the approximate number of animal species in India?

90,000

According to the IUCN Red List, how many vertebrates were documented as extinct in 2004?

338

What is the estimated number of species that have become extinct in the last 500 years?

784

Why is India considered one of the 12 mega diversity countries of the world?

Due to its high species diversity

What is the term used to describe the dying off or extermination of a large number of species due to catastrophes?

Mass extinction

What is the relationship between species richness and area according to the Species-Area Relationship?

S ∝ A

What is the significance of the slope regression coefficient (Z) in the Species-Area Relationship?

It shows the relationship between species richness and area

What is the importance of species diversity in an ecosystem?

It is important for stability, productivity, and resilience

What is the result of David Tilman's work on long-term ecosystem experiments?

He discovered the importance of species diversity in ecosystems

What is the characteristic of a stable community?

It is resistant to invasions by alien species

What is the relationship between the slope of the line and the area in the Species-Area Relationship?

The slope of the line is steeper for larger areas

What is the categorization of a species when the last individual has died?

Extinct

What is the primary reason for conserving biodiversity?

To derive economic benefits from nature

What is the level of biodiversity that involves the variety of genes within a species?

Genetic biodiversity

What is the categorization of a species when it has failed to record an individual in its known habitat?

Extinct in the Wild

Why is it important to conserve biodiversity at all levels?

To recognize the diversity at all levels

What is the categorization of a species when it has an extremely high risk of extinction in the wild in the immediate future?

Critically Endangered

Test your knowledge on the different types of biodiversity, patterns of biodiversity, causes of biodiversity loss, and conservation efforts. Learn about the importance of preserving species and ecosystems.

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