Habitat Fragmentation and Loss

Q.

Which one of the following is related to the Ex-situ conservation of threatened animals and plants?

1. Wildlife Safari parks

2. Biodiversity hotspots

3. Amazon rainforest

4. Himalayan region

Q. When large habitats are broken up into small fragments due to various human activities, which of the following organisms are badly affected

1. Mammals requiring large territories
2. Birds requiring large territories
3. All of the above
4. Certain animals with migratory habits

Q. Which of the following is/are mainly responsible for the extinction of wildlife?

1. Hunting of wild animals
2. Destruction of habitats
3. Pollution of air and water
4. All the above

Q.

Which of the following is the most important cause of animals and plants being driven to extinction?

1. Alien species invasion

2. Co-extinctions

3. Habitat loss and fragmentation

4. Over-exploitation

Q.

How do invasive alien species affect biodiversity?

Q. What is the main cause for the extinction of some species in the tropical forests?

1. Deforestation
2. Afforestation
3. Pollution
4. Soil erosion

Q. The cheetah has undergone extinction in

1. Africa
2. India
3. England
4. Ukraine

Q.

Which of the following is the main reason for the steep decrease in the Giant Panda population?

1. Catriuswallichii

2. Gallus gallus

3. Pavocristatus

4. Grus nigricollis

Q. What threatens the survival of the Giant Panda?

1. Territoriality
2. Habitat fragmentation
3. Cold winter
4. Z value

Q.

Most endangered species are victims of

1. Habitat destruction

2. Acid rain

3. Competition with introduced species

4. Over-hunting

Q.

The term “the evil quartet” is related with four major causes of

1. Forest loss

2. Population explosion

3. Air pollution

4. Biodiversity losses

Q. Loss of species due to habitat loss and global warming are included in:

1. Mass extinction
2. Natural extinction
3. Anthropogenic extinction
4. None of the above

Q.

How long did it take the earth to recover from past mass extinctions?

Q. What threatens the survival of the Giant Panda?

1. Territoriality
2. Cold winter
3. Habitat fragmentation
4. Z value

Q.

Which among the following were once the natural habitat of the Giant Panda?

1. Ocimumbasilicum

2. Ficusbengalensis

3. Prosopis cineraria

4. Aloe vera

Q.

Which of the following is responsible for the extinction of animals?

1. Ecosphere

2. Ecosystem

3. Ecoregion

4. Madagascar

Q. Which of the following is the most important reason for animals and plants being driven to extinction?

1. Alien species invasion
2. Habitat loss and fragmentation
3. Drought and floods
4. Economic exploitation

Q. What activity constitutes for habitat loss and background extinction of species?

1. Converting wet land into housing areas
2. All of these
3. Constructing highways by destroying mountains and hills
4. Encroaching upon forest space to make way for tall buildings

Q.

Which of the following is responsible for the extinction of animals?

1. Habitat Loss

2. Alien Species Invasion

3. Co-extinction

4. Endemism

Q.

Habitat fragmentation affects the following aspects:

1. Survivorship curve
2. Migration
3. Carrying capacity of habitat
4. Z value

Q.

Most endangered species are victims of

1. Over hunting

2. Habitat destruction

3. Acid rain

4. Competition with introduced species

Q. According to IUCN, some of the recent extinctions include
(i) Dodo (ii) Quagga
(iii) Indian gazelle (iv) Thylacine
(v) Steller's sea cow (vi) Bali- subspecies of tiger

1. (i), (ii), (iii) and (iv)
2. (ii), (iii), (iv) and (vi)
3. (i), (ii), (iv) and (v)
4. (iii), (iv), (v) and (vi)

Q. Tropical rain forests of world which were 1600 million hectares in 1900, now occupy

1. 938 million ha
2. 700 million ha
3. 538 million ha
4. 160 million ha

Q. Many wild animals have either become extinct or are endangered mainly due to

1. Scarcity of food
2. Hunting
3. Deforestation
4. Over crowding

Q. Which one of the following may be the reason for extinction of plant species due to human activities?

1. Earthquakes
2. Diseases
3. Pollution
4. Evolution

Q. What activity constitutes for habitat loss and background extinction of species?

1. Constructing highways by destroying mountains and hills
2. Encroaching upon forest space to make way for tall buildings
3. Converting wet land into housing areas
4. All of these

Q.

Which of the following is the most important cause driving animals and plants to extinction?

1. Over exploitation by humans

2. large habitats are broken up into small fragments

3. Co-extinctions

4. Alien species invasions

Q.

Which of the following is the main reason for the steep decrease in the Giant Panda population?

1. Poaching of pandas for fur

2. Loss of habitat

3. Major forest fires killed pandas

4. All of the above

Q. The colonisation of tropical Pacific Islands by humans is said to have led to the extinction of more than

1. 1, 300 species of native birds
2. 1, 400 species of native birds
3. 2, 000 species of native birds
4. 1, 200 species of native birds

Q. Plant species on verge of extinction due to over-exploitation is

1. Centella
2. Podophyllum
3. Gloriosa
4. All of the above