Waterbirds of Atrangarai Estuary, Southeastern India: A First Baseline Assessment with Emphasis on Breeding Waterbirds at a Traditional Fishing Center

Abstract

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References

1. Amano, T., Székely, T., Sandel, B., Nagy, S., Mundkur, T., Langendoen, T., et al. (2018). Successful conservation of global waterbird populations depends on effective governance. Nature, 553, 199–202. https://doi.org/10.1038/nature25139 [Google Scholar]
2. Anand, Y., Tatu, K., Joshi, D., Kamboj, R. D. (2018). A study on waterbird diversity of estuarine and adjacent riverine areas of Sabarmati river, Gujarat, India. Journal of Advanced Zoology, 39(2), 144–151. [Google Scholar]
3. Bibby, C. J., Burgess, N. D., Hill, D. A., Mustoe, S. (2000). Bird census techniques. Academia Press. [Google Scholar]
4. Bipitha, B. S., Reshmi, V., Maitreyi, H., Byju, H. (2026). Diversity and habitat associations of avifauna in the Poovar Estuary, Kerala, India. Journal of Threatened Taxa, 18(7), 29226–29237. https://doi.org/10.11609/jott.10212.18.7.29226-29237 [Google Scholar]
5. BirdLife International (2026). Site factsheet: Kaliveli Tank and Yeduyanthittu estuary. Accessed from https://datazone.birdlife.org/site/factsheet/18391-kaliveli-tank-and-yeduyanthittu-estuary on 21/08/2026 on 20 August 2026. [Google Scholar]
6. Byju, H., Maitreyi, H., Aarif, K. M., Ravichandran, S. (2026). Decadal changes in shorebird population dynamics across discontinuous survey periods in the Gulf of Mannar, Southeast India. Regional Environmental Change, 26(3), 133. https://doi.org/10.1007/s10113-026-02626-7 [Google Scholar]
7. Byju, H., Maitreyi, H., Raveendran, N., Marshal, D. A., Ravichandran, S. (2025). Breeding tern colonies on the sandbars of Adam’s Bridge, India: New records and significance. Journal of Threatened Taxa, 17(3), 26680–26689. https://doi.org/10.11609/jott.9591.17.3.26680-26689 [Google Scholar]
8. Byju, H., Raveendran, N., Ravichandran, S., Kishore, R. (2023a). Additional breeding records of Hanuman Plover Charadrius seebohmi E. Hartert & A. C. Jackson, 1915 (Aves: Charadriiformes: Charadriidae) from southeastern coast of India. Journal of Threatened Taxa, 15(4), 23114–23118. https://doi.org/10.11609/jott.8317.15.4.23114-23118 [Google Scholar]
9. Byju, H., Raveendran, N., Ravichandran, S., Kishore, R. (2023b). An annotated checklist of the avifauna of Karangadu mangrove forest, Ramanathapuram, Tamil Nadu, with notes on the site’s importance for waterbird conservation. Journal of Threatened Taxa, 15(3), 22813–22822. https://doi.org/10.11609/jott.8356.15.3.22813-22822 [Google Scholar]
10. Celik, E. (2026). Coastal waterbirds under global change drivers, ecological responses and adaptation pathways. Frontiers in Marine Science, 13, 1761490. https://doi.org/10.3389/fmars.2026.1761490 [Google Scholar]
11. Dias, R. A., Maurício, G. N., Bugoni, L. (2017). Birds of the Patos Lagoon Estuary and adjacent coastal waters, southern Brazil: Species assemblages and conservation implications. Marine Biology Research, 13(1), 108–120. https://doi.org/10.1080/17451000.2016.1209525 [Google Scholar]
12. Elphick, C.S., Shriver, W.G. Greenberg, R. (2023). Estuarine wildlife. In: Estuarine Ecology, 3rd Edition, Crump, B.C., Testa, J.M. & Dunton, K.H. (eds.), Wiley. pp. 292-312. [Google Scholar]
13. Grimmett, R., Inskipp, C., Inskipp, T. (2011). Field guide to birds of the Indian subcontinent: India, Pakistan, Sri Lanka, Nepal, Bhutan, Bangladesh and the Maldives. Bloomsbury Publishing. [Google Scholar]
14. Howes, J.G., Bakewell, D. (1989). Shorebird studies manual. AWB, Kula Lumpur. [Google Scholar]
15. Islam, M.Z., Rahmani, A.R. (2004). Important Bird Areas in India: Priority Sites for Conservation. Indian Bird Conservation Network, Bombay Natural History Society & BirdLife International (UK), Mumbai. 1133 pp. [Google Scholar]
16. Kasambe, R. (2012). Identification of potential Marine Important Bird Areas in India. Mistnet, 13(4), 13–16. [Google Scholar]
17. Kennish, M. J., Paerl, H. W., Crosswell, J. R. (2023). Climate change and estuaries. CRC Press. [Google Scholar]
18. Kumar, N., Chakravarthy, D. (2026). Order on Removal of Invasive Prosopis juliflora in Tamil Nadu, High Court of Judicature at Madras. India. Accessed from https://coilink.org/20.500.12592/640mkxc on 02 Sep 2026. [Google Scholar]
19. Li, X., Anderson, C. J., Wang, Y., Lei, G. (2021). Waterbird diversity and abundance in response to variations in climate in the Liaohe Estuary, China. Ecological Indicators, 132, 108286. https://doi.org/10.1016/j.ecolind.2021.108286 [Google Scholar]
20. Maitreyi, H., Byju, H., Raveendran, N., Ravichandran, S. (2026). Breeding tern colonies in Valinokkam Lagoon, Tamil Nadu, India: Additional records from the Gulf of Mannar region. Journal of Threatened Taxa, 18(8), 29552–29554. https://doi.org/10.11609/jott.10690.18.8.29552-29554 [Google Scholar]
21. Miotto, M. L., Gusmao, J. B., Domit, C., Di Domenico, M. (2023). Environmental drivers of waterbird diversity in a world heritage subtropical estuarine system. Estuarine, Coastal and Shelf Science, 288, 108343. https://doi.org/10.1016/j.ecss.2023.108343 [Google Scholar]
22. Mogalekar, H. S., Canciyal, J., Jawahar, P., Patadiya, D. S., Sudhan, C., Pavinkumar, P., Prateek, Santhoshkumar, S., Subburaj, A. (2017). Estuarine fish diversity of Tamil Nadu, India. Indian Journal of Geo-Marine Sciences, 46(10), 1968–1985. [Google Scholar]
23. Panagoda, B. G., Seneviratne, S. S., Kotagama, S., Welikala, D. (2020). Sympatric breeding of two endangered Sternula terns, Saunders’s S. saundersi and Little S. albifrons Terns, in the Rama’s Bridge of Sri Lanka. BirdingAsia, 34, 80–87. [Google Scholar]
24. Partha, S. P., Bharathidasan, V., Damotharan, P., Selvaraj, P., Murugesan, P., Sivaraj, S., Syed, A., Elgorban, A. M. (2024). Assessment of ecological status of Uppanar and Vellar estuaries through multivariate pollution indices. Marine Pollution Bulletin, 203, 116390. https://doi.org/10.1016/j.marpolbul.2024.116390 [Google Scholar]
25. R Core Team. (2026). R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. [Google Scholar]
26. Rao, K. S., Sivalingam, D., Nair, P. N. R., Unnithan, K. A. (1987). Oyster resources of Athankarai estuary, southeast coast of India. In K. N. Nayar & S. Mahadevan (Eds.), Oyster culture—Status and prospects (CMFRI Bulletin No. 38, pp. 17–29). Central Marine Fisheries Research Institute. [Google Scholar]
27. Rao, K. Satyanarayana, Sivalingam, D., Unnithan, K. A. (1983). Observations on the setting of spat and growth of Crassostrea madrasensis in Vaigai estuary at Athankarai. Proceedings of the Symposium on Coastal Aquaculture, Marine Biological Association of India, Cochin, 2, 436–443. [Google Scholar]
28. Subash Chandran, M. D., Mesta, P., Boominathan, M., Rao, G. R., Vishnu, D. M., Ramachandra, T. V. (2014). Proposal for Aghanashini Estuary in Kumta Taluk, Uttara Kannada – Biological Heritage Site. Sahyadri Conservation Series 11, ENVIS Technical Report 35. Centre for Ecological Sciences, Indian Institute of Science. [Google Scholar]