Article

Alexander I. Fayzulin, PhD, Head of the Laboratory of population ecology, Institute of Ecology of the Volga River Basin of RAS (445003, Russia, Samara Region, Togliatti, Komzina Street, 10); e-mail: alexandr-faizulin@yandex.ru
Renat I. Zamaletdinov, PhD, associate professor of the Department of environmental engineering and water management, Researcher of the Laboratory of water ecosystems optimization, Kazan (Volga region) Federal University, Institute of Management, Economics and Finance (420008, Russia, Republic of Tatarstan, Kazan, Kremlin street, 18); e-mail: i.ricinus@rambler.ru
Spartak N. Litvinchuk, PhD, Senior Researcher of the Group of genome microevolution and cytoecology, Institute of Cytology of RAS (194064, Russia, St. Petersburg, Tikhoretsky Pr., 4); e-mail: litvinchukspartak@yandex.ru
Juriy M. Rosanov, PhD, Leading Researcher of the Group of genome microevolution and cytoecology, Institute of Cytology of RAS (194064, Russia, St. Petersburg, Tikhoretsky Pr., 4); e-mail: roza-yur@yandex.ru
Leo J. Borkin, PhD, Senior Researcher of the Laboratory of herpetology and ornithology, Department of herpetology, Zoological Institute of RAS (199034, Russia, St. Petersburg, Universitetskaya nab., 1); e-mail: Leo.Borkin@zin.ru
Oleg A. Ermakov, PhD, Assistant Professor of Department of zoology and ecology, Penza State University (440026, Russia, Penza, Krasnaya street, 40); e-mail: oaermakov@list.ru
Alexander B. Ruchin, Dr. Sc., Associate Professor, Director of the Joint Directorate of the Mordovia State Nature Reserve and National Park «Smolny» (430011, Russia, Republic of Mordovia, Saransk, Dachnyi Lane, 4); e-mail: sasha_ruchin@rambler.ru
Georgiy A. Lada, Dr. Sc., Professor of Department of wildlife management and land management, G.R. Derzhavin Tambov State University (392000, Russia, Tambov, Internatsionalnaya street, 33); e-mail: esculenta@mail.ru
Anton O. Svinin, PhD, Senior Lecturer of Department of biochemistry, cell biology and microbiology, Mari State University (424000, Russia, Mari El Republic, Yoshkar-Ola, Lenin Sq. 1); e-mail: ranaesc@gmail.com
Ivan V. Bashinsky, PhD, Researcher of Laboratory for ecology of aquatic communities and invasions, A.N. Severtsov Institute of Ecology and Evolution of RAS (119071, Russia, Moscow, Leninskij prosp. 33); e-mail: ivbash@mail.ru
Igor V. Chikhlyaev, PhD, Senior Researcher of the Laboratory of Population Ecology, Institute of Ecology of the Volga River Basin of RAS (445003, Russia, Samara Region, Togliatti, Komzina street, 10); e-mail: diplodiscus@mail.ru

Fayzulin A.I., Zamaletdinov R.I., Litvinchuk S.N., Rosanov Ju.M., Borkin L.J., Ermakov O.A., Ruchin A.B., Lada G.A., Svinin A.O., Bashinsky I.V., Chikhlyaev I.V. 2018. Species composition and distributional peculiarities of green frogs (Pelophylax esculentus complex) in Protected Areas of the Middle Volga Region (Russia). Nature Conservation Research 3(Suppl.1): 1–16. https://dx.doi.org/10.24189/ncr.2018.056

A high level of biological diversity, including amphibians, is characteristic for Protected Areas. The group of the European green frogs has a special interest because they are characterised by unique genetic and ecological interactions in the process of hybridogenic reproduction. In 2000–2018 in the Middle Volga Region we studied green frogs in five nature reserves (Mordovia State Nature Reserve, State Nature Reserve «Prisurskiy», Volzhsko-Kamskiy State Nature Biosphere Reserve, Zhiguli State Nature Biosphere Reserve, and State Nature Reserve «Privolzhskaya lesostep'») and four national parks (National Park «Smolny», National Park «Chavash Varmane», National Park «Samarskaya Luka», and National Park «Buzulukskiy Bor»). These Protected Areas are located in a zone of overlap of ranges of Pelophylax lessonae and P. ridibundus, i.e. in area of potential spread of their meroclonal hybrid P. esculentus. Pelophylax ridibundus inhabits eight studied Protected Areas, while P. lessonae has been registered in seven and P. esculentus only in five of them. Two molecular-genetic markers were used in the study: mitochondrial COI and nuclear SAI-1. Mitotypes and alleles of two cryptic forms of P. ridibundus were revealed here, a «western» (P. ridibundus) and «eastern» (P. cf. bedriagae). In the Protected Areas we found four (of six which are possible) combinations of mitotypes of mitochondrial DNA and alleles of nuclear DNA of these two forms, and only one combination in P. esculentus. Six types of population systems of green frogs are presented in the studied Protected Areas. Single-species systems, including P. ridibundus (n = 16; 41.0%) or P. lessonae (n = 10; 25.6%), predominated. Among mixed systems a type including all three species was most common (n = 6; 15.4%). Two-species systems were the rarest: P. ridibundus and P. lessonae (n = 3; 7.7%), P. esculentus and P. lessonae (n = 3; 7.7%), P. ridibundus and P. esculentus (n = 1; 2.6%).

National Park, Pelophylax ridibundus, Pelophylax lessonae, Pelophylax esculentus, State Nature Reserve

Received: 03.07.2018

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