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Conservation Status of Dugongs in India and Global Context

बुधवार, 28 मई 2025
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मुख्य बिंदु

Conservation Status of Dugongs in India: Dugongs, often referred to as "sea cows," are facing significant threats in Indian waters, particularly around the Andaman and Nicobar Islands and Palk Bay. Their conservation is crucial for maintaining marine biodiversity and aligns with objectives outlined in GS Paper 3 on Environment and Ecology. Last Updated: 2025-05-28

Key Facts About Dugongs

  • Dugongs (Dugong dugon) are marine mammals commonly known as "sea cows."
  • They primarily inhabit the Indo-Pacific region, with significant populations in Indian waters.
  • In India, dugongs are predominantly found around the Andaman and Nicobar Islands and Palk Bay.
  • Dugongs can live up to 70 years, making them long-lived marine species.
  • They are mostly solitary or found in small mother-calf pairs, showcasing a unique social structure.
  • Reproductive maturity is reached at around 9-10 years, with a birth interval of 3-5 years.
  • Dugongs consume approximately 20-30 kg of seagrass daily, playing a vital role in marine ecosystems.
  • They contribute to the health of seagrass beds by stirring up the seabed, promoting growth.
  • Dugongs are classified as Vulnerable on the IUCN Red List, highlighting their precarious status.
  • They are protected under Schedule 1 of the Wild Life (Protection) Act, 1972, ensuring legal safeguards.
  • Major threats to their survival include habitat loss due to pollution and construction.
  • Climate change negatively impacts their food availability and breeding patterns.
  • Illegal hunting remains a persistent threat, particularly in remote regions.
  • Conservation efforts are focused on protecting seagrass habitats and promoting community-led stewardship.
  • Research funding is essential for effective conservation strategies and monitoring.

Broader Context: Dugongs and Marine Biodiversity

The conservation status of dugongs is a critical indicator of marine health and biodiversity in India. As herbivores, they play a significant role in maintaining seagrass ecosystems, which are vital for carbon sequestration and coastal protection. With India's commitment to sustainable development and biodiversity conservation, protecting dugongs aligns with the nation's goals to enhance marine biodiversity and combat climate change. Furthermore, India ranks among the top nations in terms of marine biodiversity, making the conservation of species like dugongs essential for ecological balance and international commitments.

Related Government Schemes/Policies

  • National Biodiversity Action Plan: Aims to protect India's rich biodiversity, including marine species like dugongs.
  • Wildlife Protection Act, 1972: Provides legal protection to endangered species, including dugongs.
  • National Coastal Mission: Focuses on sustainable coastal management, indirectly benefiting dugong habitats.

UPSC Relevance

Dugongs and their conservation are relevant to GS Paper 3, particularly under the topics of Environment and Ecology. In the Prelims, factual questions may include the IUCN status of dugongs or their habitat locations. For the Mains examination, candidates could explore themes such as biodiversity conservation, the impact of climate change on marine life, and the socio-economic implications of protecting endangered species.

FAQ Section

What is a dugong?

A dugong is a marine mammal known as a "sea cow," scientifically classified as Dugong dugon. They primarily inhabit warm coastal waters and are known for their herbivorous diet, primarily consisting of seagrass.

Why is the conservation of dugongs important?

Conserving dugongs is vital for maintaining healthy seagrass ecosystems, which support marine biodiversity and contribute to carbon sequestration. Their decline can indicate broader environmental issues affecting marine habitats.

What are the key features of dugongs?

Dugongs are characterized by their long lifespan of up to 70 years, solitary or small group behavior, and significant dietary consumption of 20-30 kg of seagrass daily. They are also classified as Vulnerable on the IUCN Red List.

विस्तृत विवरण

  • Dugongs (Dugong dugon) are marine mammals known as "sea cows."
  • They primarily inhabit the Indo-Pacific region.
  • In India, they are found around the Andaman and Nicobar Islands and Palk Bay.
  • Dugongs can live up to 70 years.
  • They are mostly solitary or in small mother-calf pairs.
  • Reproductive maturity is reached at 9-10 years.
  • They give birth every 3-5 years.
  • Dugongs consume 20-30 kg of seagrass daily.
  • They contribute to seagrass health by stirring up the seabed.
  • Dugongs are listed as Vulnerable on the IUCN Red List.
  • Protected under Schedule 1 of the Wild Life (Protection) Act, 1972.
  • Habitat loss due to pollution and construction is a major threat.
  • Climate change affects their food availability and breeding.
  • Illegal hunting persists, especially in remote areas.
  • Conservation efforts focus on protecting seagrass habitats.
  • Community-led stewardship and research funding are essential.
Environment

Practice Questions

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The slow reproductive cycle of dugongs, characterized by reaching maturity at nine to ten years and giving birth every three to five years, significantly impacts their population dynamics. What is the primary implication of this reproductive strategy for the conservation of dugongs?