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What is the News?
The Fourth Edition of the Dragonfly Census 2021 will start from Delhi-NCR.
DragonFly Census 2021:
- Conducted by: World Wide Fund for Nature(WWF-India) in partnership with Bombay Natural History Society(BNHS), United Nations Environment Programme, Zoological Survey of India and others.
- Aim: To spread awareness about the importance of the Dragonfly species to the overall ecosystem.
- First Census: The first Dragonfly census was carried out in 2018 which revealed a total of 51 different species of these insects in New Delhi and NCR.
Dragonfly
- Dragonfly is an insect belonging to the order Odonata. They are most commonly found near freshwater habitats throughout most of the world.
- Significance: Dragonflies act as important bio-indicators of the ecological health of an area. As they feed on mosquitoes and other insects that are vectors to life-threatening diseases like Malaria and Dengue.
Bioindicators:
- Bioindicators are living organisms such as plants, plankton, animals and microbes which are used to assess the health of the natural ecosystem in the environment. For instance,
- Lichens are powerful Bioindicators of air quality.
- Algae blooms are often used to indicate large increases of nitrates and phosphates in lakes and rivers among others.
