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{{Short description|Indian lichenologist}}
{{Use dmy dates|date=December 2020}}
{{Multiple issues|{{Primary sources|date=April 2021}}
{{Third-party|date=April 2021}}
{{Unreliable sources|date=April 2021}}}}
{{Infobox scientist
| name = Sanjeeva Nayaka
| image = Sanjeeva1.jpg
| caption =
| birth_date = {{birth date and age|df=yes|1974|08|01}}
| birth_place = [[Koppa, Chikmagalore district]], [[Karnataka]], India
| field = [[Lichen systematics]]
| workplaces = {{Plainlist|
* Plant Diversity, Systematics and Herbarium Division, [[Council of Scientific and Industrial Research|CSIR]] - [[National Botanical Research Institute]]}}
| author_abbrev_bot = Nayaka
| website = {{url|https://nbri.res.in/}}
}}

'''Sanjeeva Nayaka''' (Hindi: संजीव नायक; Kannada: ಸಂಜೀವ ನಾಯಕ) is an Indian [[lichenologist]]. He is a Chief Scientist at CSIR-National Botanical Research Institute (CSIR-NBRI), Lucknow.<ref name=":0">{{Cite web |title=Dr. Sanjeeva Nayaka {{!}} NBRI |url=https://nbri.res.in/diversity-scientists/dr-sanjeeva-nayaka/ |access-date=2022-04-15 |language=en}}</ref> He is in charge of the lichenology laboratory.<ref name=":0" /> He serves as managing editor of the journal ''Cryptogam Biodiversity and Assessment'',<ref>{{Cite web |title=Editorial Board {{!}} Cryptogam Biodiversity and Assessment |url=https://cbaj.in/index.php/journal/editorial-board |access-date=2022-04-15 |website=cbaj.in}}</ref> and editor of ''ILS eLetters,'' both published by the Indian Lichenological Society.<ref>{{Cite web |title=Indian Lichenological Society |url=https://www.indianlichenology.com/Newsletter.aspx |access-date=2022-04-15 |website=www.indianlichenology.com}}</ref>

== Career ==
Nayaka was introduced to research during his graduate studies. He was a volunteer in the 'Western Ghats Biodiversity Inventory Programme'. He was awarded with a Summer Research Fellowship of Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore to study the lichens of Bangalore under [[Madhav Gadgil]]. After his post-graduation Nayaka moved to Lucknow to work with Dr. [[Dalip Kumar Upreti|D.K. Upreti]] at CSIR-NBRI. Initially he worked as a project assistant on the All-India Coordinated Project on Taxonomy. During this period, he explored lichens of [[Himachal Pradesh]]. In 2001 he was appointed as a scientist at CSIR-NBRI.<ref name=":2">{{Cite web |title=ORCID |url=https://orcid.org/0000-0001-6541-2362 |access-date=2022-04-15 |website=orcid.org}}</ref>

Nayaka revised the [[genus]] ''[[Lecanora]]'' for his doctoral thesis under Upreti's supervision. He earned his Ph.D. from Dr. R. M. L. Awadh University, Faizabad.<ref>{{Cite web |title=Revisionary studies on lichen genus Lecanora sensu lato in India |url=https://scholar.google.co.in/citations?view_op=view_citation&hl=en&user=EV_coM0AAAAJ&citation_for_view=EV_coM0AAAAJ:UeHWp8X0CEIC |access-date=2022-04-15 |website=scholar.google.co.in}}</ref> His research interests include taxonomy, biomonitoring and bioprospecting of lichens.<ref>{{Cite web |title=S Nayaka |url=https://in.linkedin.com/in/sanjeeva-nayaka-904a653a}}</ref> Apart from ''Lecanora'' he has revised taxa such as ''[[Buellia]]'', ''[[Lecidea]]'', ''[[Phyllopsora]]'' and ''[[Rinodina]]''. He has described 28 new lichen species and reported over 110 species as new distributional record. Nayaka travelled throughout India and published lichen floristic accounts for several regions. His major work involves lichens of [[Himachal Pradesh]], [[Uttar Pradesh]], [[Gujarat]] and [[Eastern Ghats]]. He surveyed various wildlife sanctuaries and national parks in India, and he has visited [[Antarctica]] twice to study its lichens and their [[ecophysiology]].<ref>{{Cite web |date=25 April 2003|title=Scientist back after trip to Antarctica |url=https://timesofindia.indiatimes.com/city/lucknow/scientist-back-after-trip-to-antarctica/articleshow/44408830.cms |access-date=2022-04-15 |website=The Times of India |language=en}}</ref> He has handled eight research projects as Principal Investigator and he is a co-Investigator on more than 25 projects.<ref name=":0" /> Nayaka published more than 200 research articles. He participated in national and international conferences and published about 180 abstracts.{{cn|date=April 2022}} He authored or edited three books: ''A field Guide to the common Lichens of Corbett Tiger Reserve'',<ref>{{Cite book |last=Upreti |first=D. K. |title=A field guide to the common lichens of Corbett Tiger Reserve |date=2004 |publisher=Bishen Singh |others=Sanjeeva Nayaka |isbn=81-211-0334-7 |location=Dehra Dun |oclc=176908575}}</ref> ''Lichens of Uttar Pradesh'',<ref>{{Cite book |last1=Nayaka |first1=Sanjeeva |url=https://www.researchgate.net/publication/265685118 |title=Lichens of Uttar Pradesh |last2=Upreti |first2=Dailip |date=2013-01-01}}</ref> and ''Plant Diversity of Uttar Pradesh (Including Algae and Fungi)''.<ref>{{Cite book |last1=Mishra |first1=Gaurav |url=https://www.researchgate.net/publication/342243671 |title=Plant Diversity of Uttar Pradesh (Including Algae and Fungi) |last2=Nayaka |first2=Sanjeeva |last3=DC |first3=Saini |date=2015-01-01}}</ref>

== Recognition ==
* Fellow of [[Linnean Society of London|Linnean Society]], London (2021)
* Fellow of Mycological Society of India
* Fellow of International Society for Environmental Botanist (ISEB), India
* Life member of [[International Association for Lichenology]]<ref name=":2" />

==See also==
* [[:Category:Taxa named by Sanjeeva Nayaka]]

== References ==
{{reflist}}

{{Authority control}}

{{DEFAULTSORT:Nayaka, Sanjeeva}}
[[Category:1974 births]]
[[Category:Indian ecologists]]
[[Category:Indian taxonomists]]
[[Category:Indian lichenologists]]
[[Category:Living people]]
[[Category:Scientists from Karnataka]]
[[Category:20th-century Indian scientists]]
[[Category:21st-century Indian scientists]]

Sanjeeva Nayaka - Revision history

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