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Pollution, climate changes, over-exploitation by humans etc. are responsible for changes in the ecosystem. Change in an ecosystem is responsible for depletion in biodiversity which directly or indirectly affects human beings and their surroundings. So it is important to conserve biodiversity. There are various methods like in-situ conservation, ex situ conservation by which we can conserve our biodiversity.
Q. Main cause of extinction of animals and plants is :
- a)Habitat loss and fragmentation
- b)Competition between species
- c)Over-exploitation
- d)Alien species invasion.
Correct answer is option 'A'. Can you explain this answer?
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Pollution, climate changes, over-exploitation by humans etc. are resp...
Due to habitat loss animals migrate and lose their favourable condition, food, temperature, water that makes it difficult to survive and become extinct.
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Pollution, climate changes, over-exploitation by humans etc. are resp...
Habitat loss and fragmentation
Habitat loss and fragmentation are the main causes of extinction of animals and plants. This refers to the destruction, degradation, or fragmentation of natural habitats that results from human activities such as deforestation, urbanization, and agriculture.
Habitat loss
- Habitat loss occurs when a natural habitat is destroyed or converted into a different land use, such as agriculture or urban areas. This often happens due to human activities such as clearing forests for agriculture, building infrastructure, or expanding urban areas.
- When a habitat is destroyed, the species that depend on it lose their homes and are forced to relocate or perish. This can lead to local extinctions of species and a decline in overall biodiversity.
Habitat fragmentation
- Habitat fragmentation occurs when a large habitat is divided into smaller, isolated patches. This can happen when natural habitats are fragmented by roads, dams, or other infrastructure, or when natural barriers such as rivers or mountains isolate populations of species.
- Fragmentation can have several negative effects on species. It reduces the available habitat area, which can lead to overcrowding and increased competition for resources. It also disrupts natural ecological processes, such as the movement of species and the flow of nutrients, which can negatively impact the survival and reproduction of species.
- Fragmentation can also increase the vulnerability of species to other threats, such as predation, disease, and climate change. Small fragmented populations are more susceptible to these threats and have a higher risk of extinction.
Impact on biodiversity and human beings
- Habitat loss and fragmentation directly contribute to the depletion of biodiversity. When habitats are destroyed or fragmented, species lose their homes and are unable to survive. This can lead to the extinction of species and a decline in overall biodiversity.
- Biodiversity is essential for the functioning of ecosystems and provides numerous benefits to human beings. It supports ecosystem services such as pollination, nutrient cycling, and water purification, which are vital for human well-being.
- Loss of biodiversity can also have indirect impacts on human beings. It can disrupt food chains and ecological processes, leading to imbalances in ecosystems. This can have cascading effects on human societies, including reduced availability of food, loss of livelihoods, and increased vulnerability to natural disasters.
Conservation measures
- In-situ conservation: This involves the protection and management of species and habitats in their natural environment. It includes the establishment of protected areas, such as national parks and wildlife sanctuaries, where human activities are regulated to ensure the preservation of biodiversity.
- Ex situ conservation: This involves the conservation of species outside their natural habitats. It includes activities such as captive breeding, seed banks, and botanical gardens, where endangered species are protected and bred in controlled environments.
- These conservation measures aim to mitigate the impacts of habitat loss and fragmentation by preserving and restoring habitats, protecting species, and promoting sustainable land use practices. They are crucial for maintaining biodiversity and ensuring the long-term survival of species.
Habitat loss and fragmentation are the main causes of extinction of animals and plants. This refers to the destruction, degradation, or fragmentation of natural habitats that results from human activities such as deforestation, urbanization, and agriculture.
Habitat loss
- Habitat loss occurs when a natural habitat is destroyed or converted into a different land use, such as agriculture or urban areas. This often happens due to human activities such as clearing forests for agriculture, building infrastructure, or expanding urban areas.
- When a habitat is destroyed, the species that depend on it lose their homes and are forced to relocate or perish. This can lead to local extinctions of species and a decline in overall biodiversity.
Habitat fragmentation
- Habitat fragmentation occurs when a large habitat is divided into smaller, isolated patches. This can happen when natural habitats are fragmented by roads, dams, or other infrastructure, or when natural barriers such as rivers or mountains isolate populations of species.
- Fragmentation can have several negative effects on species. It reduces the available habitat area, which can lead to overcrowding and increased competition for resources. It also disrupts natural ecological processes, such as the movement of species and the flow of nutrients, which can negatively impact the survival and reproduction of species.
- Fragmentation can also increase the vulnerability of species to other threats, such as predation, disease, and climate change. Small fragmented populations are more susceptible to these threats and have a higher risk of extinction.
Impact on biodiversity and human beings
- Habitat loss and fragmentation directly contribute to the depletion of biodiversity. When habitats are destroyed or fragmented, species lose their homes and are unable to survive. This can lead to the extinction of species and a decline in overall biodiversity.
- Biodiversity is essential for the functioning of ecosystems and provides numerous benefits to human beings. It supports ecosystem services such as pollination, nutrient cycling, and water purification, which are vital for human well-being.
- Loss of biodiversity can also have indirect impacts on human beings. It can disrupt food chains and ecological processes, leading to imbalances in ecosystems. This can have cascading effects on human societies, including reduced availability of food, loss of livelihoods, and increased vulnerability to natural disasters.
Conservation measures
- In-situ conservation: This involves the protection and management of species and habitats in their natural environment. It includes the establishment of protected areas, such as national parks and wildlife sanctuaries, where human activities are regulated to ensure the preservation of biodiversity.
- Ex situ conservation: This involves the conservation of species outside their natural habitats. It includes activities such as captive breeding, seed banks, and botanical gardens, where endangered species are protected and bred in controlled environments.
- These conservation measures aim to mitigate the impacts of habitat loss and fragmentation by preserving and restoring habitats, protecting species, and promoting sustainable land use practices. They are crucial for maintaining biodiversity and ensuring the long-term survival of species.
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Pollution, climate changes, over-exploitation by humans etc. are responsible for changes in the ecosystem. Change in an ecosystem is responsible for depletion in biodiversity which directly or indirectly affects human beings and their surroundings. So it is important to conserve biodiversity. There are various methods like in-situ conservation, ex situ conservation by which we can conserve our biodiversity.Q. Main cause of extinction of animals and plants is :a)Habitat loss and fragmentationb)Competition between speciesc)Over-exploitationd)Alien species invasion.Correct answer is option 'A'. Can you explain this answer?
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Pollution, climate changes, over-exploitation by humans etc. are responsible for changes in the ecosystem. Change in an ecosystem is responsible for depletion in biodiversity which directly or indirectly affects human beings and their surroundings. So it is important to conserve biodiversity. There are various methods like in-situ conservation, ex situ conservation by which we can conserve our biodiversity.Q. Main cause of extinction of animals and plants is :a)Habitat loss and fragmentationb)Competition between speciesc)Over-exploitationd)Alien species invasion.Correct answer is option 'A'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Pollution, climate changes, over-exploitation by humans etc. are responsible for changes in the ecosystem. Change in an ecosystem is responsible for depletion in biodiversity which directly or indirectly affects human beings and their surroundings. So it is important to conserve biodiversity. There are various methods like in-situ conservation, ex situ conservation by which we can conserve our biodiversity.Q. Main cause of extinction of animals and plants is :a)Habitat loss and fragmentationb)Competition between speciesc)Over-exploitationd)Alien species invasion.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Pollution, climate changes, over-exploitation by humans etc. are responsible for changes in the ecosystem. Change in an ecosystem is responsible for depletion in biodiversity which directly or indirectly affects human beings and their surroundings. So it is important to conserve biodiversity. There are various methods like in-situ conservation, ex situ conservation by which we can conserve our biodiversity.Q. Main cause of extinction of animals and plants is :a)Habitat loss and fragmentationb)Competition between speciesc)Over-exploitationd)Alien species invasion.Correct answer is option 'A'. Can you explain this answer?.
Pollution, climate changes, over-exploitation by humans etc. are responsible for changes in the ecosystem. Change in an ecosystem is responsible for depletion in biodiversity which directly or indirectly affects human beings and their surroundings. So it is important to conserve biodiversity. There are various methods like in-situ conservation, ex situ conservation by which we can conserve our biodiversity.Q. Main cause of extinction of animals and plants is :a)Habitat loss and fragmentationb)Competition between speciesc)Over-exploitationd)Alien species invasion.Correct answer is option 'A'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Pollution, climate changes, over-exploitation by humans etc. are responsible for changes in the ecosystem. Change in an ecosystem is responsible for depletion in biodiversity which directly or indirectly affects human beings and their surroundings. So it is important to conserve biodiversity. There are various methods like in-situ conservation, ex situ conservation by which we can conserve our biodiversity.Q. Main cause of extinction of animals and plants is :a)Habitat loss and fragmentationb)Competition between speciesc)Over-exploitationd)Alien species invasion.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Pollution, climate changes, over-exploitation by humans etc. are responsible for changes in the ecosystem. Change in an ecosystem is responsible for depletion in biodiversity which directly or indirectly affects human beings and their surroundings. So it is important to conserve biodiversity. There are various methods like in-situ conservation, ex situ conservation by which we can conserve our biodiversity.Q. Main cause of extinction of animals and plants is :a)Habitat loss and fragmentationb)Competition between speciesc)Over-exploitationd)Alien species invasion.Correct answer is option 'A'. Can you explain this answer?.
Solutions for Pollution, climate changes, over-exploitation by humans etc. are responsible for changes in the ecosystem. Change in an ecosystem is responsible for depletion in biodiversity which directly or indirectly affects human beings and their surroundings. So it is important to conserve biodiversity. There are various methods like in-situ conservation, ex situ conservation by which we can conserve our biodiversity.Q. Main cause of extinction of animals and plants is :a)Habitat loss and fragmentationb)Competition between speciesc)Over-exploitationd)Alien species invasion.Correct answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET.
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