A special lecture on "Biodiversity-An Exploration of Life" at RVS College of Education, Dindigul-Dt. (13.03.2018).

I have stressed the importance of Marine Biodiversity, particularly "Microbial community of intertidal zone" in Rameshewaram area, Ramanathapuram Dt. It is a very harsh living environment. They are constantly facing challenges such as salinity, wind, sunlight, predators and strong water currents. It helps with these difficulties many organisms have “special adaptation” features.

A special lecture on "Biodiversity-An Exploration of the Diversity" at M. Kumarasamy College of Education, Karur-Dt. (10.03.2018).

An endangered species is a native species that faces a significant risk of extinction. Such species may be declining in number due to threats such as habitat destruction, climate change and pressure from invasive species. The flora of India is one of the richest in the world due to the country's wide range of climate, topology, and environment. There are over 15,000 species of flowering plants in India which account for 6% of all plant species in the world. Many plant species are being destroyed. Roughly 1/4 of all plant species in the world are at risk of being endangered or going extinct. The combination of global warming and habitat destruction are the sole reason for the disappearance of many plants. The following plants are very threatened in Tamilnadu: Acacia planifrons (Umbrella tree), Abutilon indicum, (Indian mallow), Chlorophytum tuberosum, (Musli) and Chlorophytum malabaricum (Malabar lily).

A special lecture on "Earth's Health is in Our Hands" at Kaliammal College of Education, Karur-Dt. (05.03.2018).

“Keystone Species” are keep the ecosystem in balance. If suppose loss one such species in the eco-system, entirely collapse the total eco-system and further extended to the near eco-system. Keystone species maintain long-term sustainability. Take for example humming birds. It is vital in the pollination processes.  Another good example is Grey wolf. Hence, the present movement is preservation and restoration of keystone species is very essential. Recently, Uma Ramakrishnan, National Centre for Biological Science, Bangalore has pointed out, Pikas are keystone species. Pikas mostly habitat in Himalayan ecosystem. And Black Clam is another keystone species. Black Clam is highly available in Vembanad Lake. Such species indirectly help to the fisheries field. Now, black clam is declined by human activities in the form commercial business. In terrestrial ecosystem, number of animals act as keystone species. Such as butterfly, earthworm, bees, birds and ants etc. Sometime, buffaloes dung are useful to disseminate the rare seeds. Hence, we aware about the Keystone Species for future generation. 

A special lecture on "Bio-diversity as a goal of Environmental Education" at Karur Velalar College of Arts and Science for Women. Karur-Dt. (16.02.2018).

“Species diversity” means the whole of diversity life. It includes human-beings, animals, plants, fungi, bacteria, protozoa and viruses. Very rare and endemic species diversity has only found in the specific geographical region. The best example is Australia Kangaroo species. In the biosphere such kind of species not observed in any other parts world. And another best example is radiated tortoise groups found only in the Madagascar islands. Unicellular organisms are invisible to naked eye. Such as bacteria, archaea and protists. Cyano-bacteria is photosynthetic oxyntic groups. It is subclass of bacteria. It has found throughout the world. It is a ubiquitous nature. In archaea is very unfamiliar groups. It has found in hydrothermal springs of ocean. They do not have chlorophyll. From this lecture, I have motivated the students to know the taxonomical system of animals, plants and microbes.

A special talk on "Biodiversity Conservation" at Govt. Hr. Sec. School, Palani Road, Dindigul-Dt. (12.02.2018).

“Bird Biodiversity” in Tamilnadu is under the threatened condition said by Bombay Natural History Society (BNHS) Mumbai. They announced that near 18 species are endangered. They were identified from the Important Bird and Biodiversity Areas (IBAs). They notified that habitat destruction, agricultural intensification, industrialization and urbanization factors. These are the main causes for biodiversity loss. They also pointed out few of vulture groups such as White Vulture, Long-billed Vulture, Red-headed Vulture and Spoon- billed sandpiper are critically endangered. Spoon-billed sandpiper is not confirmed in Tamilnadu areas. Cheyyur lagoon, Kanchipuram District is now recognized by Wildlife Society of India. This wetland has supported by near 80 variety of birds. But this wetland is problem in nature, because near to the Thermal Plant. Another one place Megamalai near to the Theni District has recognized. Bird Life International (BLI) has framed certain essential criteria for IBAs. They are 1. Endangered species 2. Endemic nature 3. Biome 4. Near 20.000 water birds. In this juncture, I have sponsored the environmental related books to the students of XI and IX STD. They won the contest regarding environmental questions. Peter Sir, has assisted the all activities for this programme and other faculty members were participated.