D. Ambarli, U. S. Zeydanli, Ö. Balkiz, E. Aslan, M. Karacetin et al.,

S. D. Lise and . Caglayan, An overview of biodiversity and conservation status of steppes of the Anatolian Biogeographical Region, Biodiversity and Conservation, vol.25, pp.2491-2519, 2016.

M. Ahmadi, M. Hemami, M. Kaboli, M. Malekian, and N. E. Zimmermann, Extinction risks of a Mediterranean neo-endemism complex of mountain vipers triggered by climate change, Scientific Reports, vol.9, p.6332, 2019.

L. R. Alencar, M. Martins, and H. W. Greene, Evolutionary History of Vipers, 2018.

M. E. Alfaro and S. J. Arnold, Molecular systematics and evolution of Regina and the Thamnophiine snakes, Molecular Phylogenetics and Evolution, vol.21, pp.408-423, 2001.

A. Avci, N. Üzüm, E. Bozkurt, and K. Olgun, The herpetofauna of poorly known Tunceli province (Turkey), Russian Journal of Herpetology, vol.25, pp.17-24, 2018.

I. Baran and M. K. Atatür, The Herpetofauna of Turkey (Amphibians and Reptiles). T.C. Cevre Bakanligi, 1998.

R. G. Barry, Mountain Weather and Climate, 2008.

M. Ba?o?lu and ?. Baran, Türkiye Sürüngenleri Kisim II. Yilanlar [The Reptiles of Turkey Part II. The Snakes, 1980.

, Ege Üniversitesi Fen Fakültesi Kitaplar Serisi

Ü. Birben and G. Gençay, Bio-smuggling in Turkey, Crime, Law and Social Change, vol.71, pp.345-364, 2019.

R. D. Bradley and R. J. Baker, A test of the genetic species concept: cytochrome-b sequences and mammals, Journal of Mammalogy, vol.82, pp.960-973, 2001.

A. Budak and B. Göçmen, Herpetoloji [Herpetology]. 2 nd Edition. Ege Üniversitesi Yayinlari Fen Fakültesi Yayin, 2008.

F. T. Burbrink, R. Lawson, and J. B. Slowinski, Mitochondrial DNA phylogeography of the North American Ratsnake (Elaphe obsoleta): a critique of the subspecies concept, Evolution, vol.54, pp.2107-2114, 2000.

K. Çiçek, V. Tok, M. Afsar, and T. Çetinkaya, Action Plan: White-banded Mountain Viper (Montivipera albizona) in Sivas Province. T.C. Ministry of Forestry and Water Affairs, 15th Regional Directorate, 2017.

K. Çiçek, M. Afsar, E. Ba?da, and C. V. Tok, Conservation activities for Mountain Viper, Montivipera albizona (Nilson, Andrén and Flärdh, 1990) in Anatolia, Ecologia Balcanica, vol.10, pp.27-40, 2018.

K. Corbett, U. K. London, A. De-queiroz, and R. Lawson, Phylogenetic relationships of the garter snakes based on DNA sequence and allozyme variation, Biological Journal of the Linnean Society, vol.53, pp.209-229, 1989.

J. A. Ettling, A. L. Aghasyan, and L. A. Aghasyan, The conservation of rare Armenian vipers Montivipera raddei and Pelias spp, International Zoo Yearbook, vol.49, pp.81-88, 2015.

I. Freitas, S. Ursenbacher, K. Mebert, O. Zinenko, S. Schweiger et al., Evaluating taxonomic inflation: towards evidence-based species delimitation in Eurasian vipers (Serpentes: Viperinae), Amphibia-Reptilia, vol.41, 2020.
URL : https://hal.archives-ouvertes.fr/hal-02550777

T. Garrigues, C. Dauga, E. Ferquel, V. Choumet, and A. B. Failloux, Molecular phylogeny of Vipera Laurenti, 1768 and the related genera Macrovipera (Reuss, 1927) and Daboia (Gray, 1842), with comments about neurotoxic Vipera aspis aspis populations, Molecular Phylogenetics and Evolution, vol.35, pp.35-47, 2005.
URL : https://hal.archives-ouvertes.fr/pasteur-01701042

P. Geniez, Serpents d'Europe, d'Afrique du Nord et du Moyen-Orient, Delauchaux et Niestlé SA, 2015.

H. L. Gibbs, S. J. Corey, G. Blouin-demers, K. A. Prior, and P. J. Weatherhead, Hybridization between mtDNA-defined phylogeographic lineages of Black Rat Snakes (Pantherophis sp, Molecular Ecology, vol.15, pp.3755-3767, 2006.

B. Göçmen, H. Ar?kan, M. Z. Y?ld?z, A. Mermer, and N. Alpagut-keskin, Serological characterization and confirmation of the taxonomic status of Montivipera albizona (Serpentes, Viperidae) with an additional new locality record and some phylogenetical comments, Animal Biology, vol.59, pp.87-96, 2009.

B. Göçmen, M. Kari?, E. Özmen, and M. A. O?uz, First record of the Palestine Viper Vipera palestinae (Serpentes: Viperidae) from Anatolia, South Western Journal of Horticulture, Biology and Environment, vol.9, pp.87-90, 2018.

B. Göçmen, K. Mebert, N. ??ci, B. Akman, M. Z. Yildiz et al., New locality records of four rare species of vipers (Ophidia: Viperidae) in Turkey, Zoology in the Middle East, vol.60, pp.306-313, 2014.

B. Göçmen, K. Mebert, and M. Kari?, New distributional data on Vipera (berus) barani from Western and Northeastern Anatolia, vol.8, pp.609-615, 2015.

B. Göçmen, K. Mebert, M. Kari?, M. A. O?uz, and S. Ursenbacher, A new population and subspecies of the critically endangered Anatolian Meadow Viper Vipera anatolica Eiselt and Baran, 1970 in eastern Antalya province, Amphibia-Reptilia, vol.38, pp.289-305, 2017.

B. Göçmen, J. Mulder, M. Kari?, and K. Mebert, New locality records of Vipera ammodytes transcaucasiana Boulenger, 1913 in Turkey, South Western Journal of Horticulture, vol.6, pp.91-98, 2015.

M. Grooten and R. E. Almond, Living planet report -2018. Aiming higher. World Wildlife Fund (WWF), vol.144, 2018.

S. Gül, Y. Kumluta?, and Ç. Ilgaz, Predicted distribution patterns of Pelias kaznakovi (Nikolsky, 1909) in the Caucasus hotspot with a new locality record from Turkey, Russian Journal of Herpetology, vol.23, pp.224-230, 2016.

R. G. Harrison, Hybrid Zones and the Evolutionary Process, 1993.

D. M. Hillis, Species delimitation in herpetology, Journal of Herpetology, vol.53, pp.3-12, 2019.

S. Hofmann, K. Mebert, K. D. Schulz, N. Helfenberger, B. Göçmen et al., A new subspecies of Zamenis hohenackeri (Strauch, 1873) (Serpentes: Colubridae) based on morphological and molecular data, Zootaxa, vol.4471, pp.137-153, 2018.

D. Jeli?, R. Ajti?, B. Sterijovski, J. Crnobrnja-isailovi?, S. Lelo et al., Distribution of the genus Vipera in the western and central Balkans (Squamata: Serpentes: Viperidae), vol.25, pp.109-132, 2014.

U. Joger, The venomous snakes of the Near and Middle East. Pp. 1-115 In Beihefte zum Tübinger Atlas des Vorderen Orients 12, Reihe A, (Naturwissenschaften). Dr, 1984.

U. Joger, A. Teynié, and D. Fuchs, Morphological characterization of Vipera wagneri Nilson and Andren, 1984 (Reptilia: Viperidae), with first description of the males, Bonner Zoologische Beiträge, vol.39, pp.221-228, 1988.

C. Kindler, M. Che?vre, S. Ursenbacher, W. Böhme, A. Hille et al., Hybridization patterns in two contact zones of grass snakes reveal a new Central European snake species, Scientific Reports, vol.7, 2017.

Y. Kumluta?, Ç. Ilgaz, and K. Candan, Westernmost record of Montivipera wagneri, Herpetozoa, vol.28, pp.98-101, 1984.

Y. Kumluta?, M. Öz, M. R. Tunç, Y. Kaska, A. Özdemir et al., On snake species of the Western Taurus Range, Turkey. Natura Croatica, vol.13, pp.19-33, 2004.

M. Kurnaz, U. Bülbül, A. I. Eroglu, B. Kutrup, and H. Koc, Northwesternmost locality record of Montivipera xanthina (GRAY, 1849) in Turkey, Herpetozoa, vol.30, pp.218-221, 2018.

A. Lyet, W. Thuiller, M. Cheylan, and A. Besnard, Fine-scale regional distribution modelling of rare and threatened species: bridging GIS tools and conservation in practice, Diversity and Distributions, vol.19, pp.651-663, 2013.

D. Mallow, D. Ludwig, and G. Nilson, True Vipers: Natural History and Toxinology of Old World Vipers, 2003.

B. Maritz, J. Penner, M. Martins, J. Crnobrnja-isailovi?, S. Spear et al., Identifying global priorities for the conservation of vipers, Biological Conservation, vol.204, pp.94-102, 2016.

S. L. Maxwell, R. A. Fuller, T. M. Brooks, and J. E. ,

, Biodiversity: the ravages of guns, nets and bulldozers, Herpetological Conservation and Biology Watson, vol.536, pp.143-145, 2016.

J. D. Mcvay, O. Flores-villela, and B. Carstens, Diversification of North American natricine snakes, Biological Journal of the Linnean Society, vol.116, pp.1-12, 2015.

K. Mebert, Good species despite massive hybridization: genetic research on the contact zone between the watersnakes Nerodia sipedon and N. fasciata in the Carolinas, USA. Molecular Ecology, vol.17, pp.1918-1929, 2008.

K. Mebert, Massive Hybridization and Species Concepts, Insights from Watersnakes, 2010.

K. Mebert, N. B.-göçmen, M. A. ??ci, M. O?uz, and . Kari?, New records and search for contact zones among parapatric vipers in the genus Vipera (barani, kaznakovi, darevskii, eriwanensis), Montivipera (wagneri, raddei), and Macrovipera (lebetina) in northeastern Anatolia, Herpetological Bulletin, vol.133, pp.13-22, 2015.

K. Mebert, B. Göçmen, and M. Kari?, Range extension of the critically endangered Anatolian Meadow Viper Vipera anatolica senliki in eastern Antalya province, South Western Journal of Horticulture, Biology and Environment, vol.8, pp.65-77, 2017.

K. Mebert, M. B.-göçmen, N. Kari?, S. ??ci, and . Ursenbacher, The valley of four viper species and a highland of dwarfs: fieldwork on threatened vipers in northeastern Turkey, International Reptile Conservation Foundation (IRCF) Reptiles and Amphibians, vol.23, pp.1-9, 2016.

K. Mebert, N. ??ci, B. Göçmen, and S. Ursenbacher, Vipern der Nordost-Türkei: Genfluss und Umweltfaktoren zwischen den Taxa des Vipera barani-kaznakovi-darevskii-Komplexes, Elaphe, vol.49, pp.58-67, 2014.

K. Mebert, T. Jagar, R. Gr?elj, V. Cafuta, L. Luiselli et al., The dynamics of coexistence: habitat sharing vs. segregation patterns among three sympatric montane vipers, Biological Journal of the Linnean Society, vol.116, pp.364-376, 2015.

K. Mebert, L. Luiselli, V. Cafuta, P. Golay, S. Dubey et al., A home for three: analyzing ecological correlates of body traits in a triple contact zone of alpine vipers, North-Western Journal of Zoology, vol.13, pp.251-261, 2017.

E. Mizsei, M. Szabolcs, M. Dimaki, S. A. Roussos, and Y. Ioannidis, Vipera graeca. The International Union for Conservation of Nature Red List of Threatened Species, 2018.

E. Mizsei, B. Üveges, B. Vági, M. Szabolcs, S. Lengyel et al., Species distribution modelling leads to the discovery of new populations of one of the least known European snakes, Vipera ursinii graeca, Amphibia-Reptilia, vol.37, pp.55-68, 2016.

J. Mulder, Additional information on Vipera albizona (Reptilia, Serpentes, Viperidae), Natural History Museum Rotterdam, vol.1, pp.77-83, 1994.

J. Mulder, Deinsea: Annual of the Natural History Museum, vol.2, pp.51-66, 1987.

A. Nalbantsoy, N. ??ci, B. Göçmen, and K. Mebert, Cytotoxic potential of Wagner's Viper, Montivipera wagneri, venom, North-Western Journal of Zoology, vol.12, pp.286-291, 2016.

G. Nilson and C. Andrén, Systematics of the Vipera xanthina complex (Reptilia: Viperidae). 3. Taxonomic status of the Bulgar Dagh Viper in south Turkey, Journal of Herpetology, vol.19, pp.276-283, 1985.

G. Nilson and C. Andrén, The mountain vipers of the Middle East: The Vipera xanthina complex, Bonner Zoologische Monographien, vol.20, pp.1-90, 1986.

G. Nilson and C. Andrén, The species concept in the Vipera xanthina complex: reflecting evolutionary history or hiding biological diversity?, Amphibia-Reptilia, vol.13, pp.421-424, 1992.

G. Nilson, C. Andrén, and B. Flärdh, Die Vipern der Türkei. Salamandra, vol.24, pp.215-247, 1988.

G. Nilson, C. Andrén, and B. Flärdh, Vipera albizona, a new mountain viper from central Turkey, with comments on isolating effects of the Anatolian "Diagonal, Amphibia-Reptilia, vol.11, pp.285-294, 1990.

G. Nilson, B. Tuniyev, C. Andrén, N. Orlov, U. Joger et al., Taxonomic position of the Vipera xanthina complex, Kaupia (Darmstadt), vol.8, pp.99-102, 1999.

T. Phelps, Old World Vipers -A Natural History of the Azemiopinae and Viperinae. Edition Chimaira, 2010.

J. S. Placyk, B. M. Jr, G. S. Fitzpatrick, R. L. Casper, R. G. Small et al., Hybridization between two gartersnake species (Thamnophis) of conservation concern: a threat or an important natural interaction?, Conservation Genetics, vol.13, pp.649-663, 2012.

M. Rajabizadeh, D. Adriaens, M. Kaboli, J. Sarafraz, and M. Ahmadi, Dorsal colour pattern variation in Eurasian mountain vipers (genus Montivipera): A trade-off between thermoregulation and crypsis, Zoologischer Anzeiger, vol.257, pp.1-9, 2015.

G. Rotem, Y. Gavish, B. Shacham, I. Giladi, A. Bouskila et al., Combined effects of climatic gradient and domestic livestock grazing on reptile community structure in a heterogeneous agroecosystem, Oecologia, vol.180, pp.231-273, 2016.

A. Saha, L. Mcrae, C. K. Dodd, H. Gadsden, K. M. Hare et al., Tracking global population trends: population time-series data and a living planet index for reptiles, Journal of Herpetology, vol.52, pp.259-268, 2018.

B. Schätti, I. Baran, and H. Sigg, Rediscovery of the Bolkar viper: morphological variation and systematic implications on the 'Vipera xanthina complex, Amphibia-Reptilia, vol.12, pp.305-327, 1991.

J. M. Schieltz and D. I. Rubenstein, Evidence based review: positive versus negative effects of livestock grazing on wildlife. What do we really know?, Environmental Research Letters, vol.11, pp.1-18, 2016.

R. Sindaco, A. Venchi, and C. Grieco, The Reptiles of the Western Palearctic, 2013.

A. Stumpel, R. Podloucky, K. Corbett, C. Andrén, A. Bea et al., Threatened reptiles in Europe requiring special conservation measures, Proceedings of 6 th Ordinary General Meeting, pp.25-35, 1992.

N. Stümpel, Phylogenie und Phylogeographie eurasischer Viperinae unter besonderer Berücksichtigung der orientalischen Vipern der Gattungen Montivipera und Macrovipera, vol.244, 2012.

N. Stümpel and U. Joger, Recent advances in phylogeny and taxonomy of Near and Middle Eastern Vipers -an update, ZooKeys, vol.31, pp.179-191, 2009.

N. Stümpel, M. Rajabizadeh, A. Avci, W. Wüster, U. Joger et al., 2001) triggered by multiple Plio-Pleistocene refugia and high-mountain topography in the Near and Middle East, Molecular Phylogenetics and Evolution, vol.101, pp.336-351, 2016.

N. Stümpel, O. Zinenko, and K. Mebert, On elevation-related shifts of spring activity in male vipers of the genera Montivipera and Macrovipera in Turkey and Cyprus, Herpetozoa, vol.31, pp.125-132, 2019.

C. V. Tok, K. Çiçek, M. Afsar, and C. Alparslan, Artvin Province Hopa Viper (Vipera kaznakovi) Species Action Plan. Republic of Turkey Ministry of Forestry and Water Affairs General Directorate of Nature Conservation and National Parks, 12 th Regional Directorate, Artvin Provincal Directorate, vol.74, 2015.

P. Török, D. Ambarli, J. Kamp, K. Wesche, and J. Dengler, Step(pe) up! Raising the profile of the Palaearctic natural grasslands, Biodiversity and Conservation, vol.25, pp.2187-2195, 2016.

B. S. Tuniyev, Rare species of shield-head vipers in the Caucasus, Nature Conservation Research, vol.1, pp.11-25, 2016.

K. Wesche, D. Ambarli, J. Kamp, P. Török, J. Treiber et al., The Palaearctic steppe biome: a new synthesis, Biodiversity and Conservation, vol.25, pp.2197-2231, 2016.

M. Z. Yildiz, N. ??ci, B. Akman, and B. Göçmen, Results of a herpetological survey in the province of A?ri, (east Anatolia, Turkey), Herpetozoa, vol.31, pp.47-59, 2018.

O. Zinenko, A. Avci, F. Spitzenberger, A. Tupikov, K. Shiryaev et al., Rediscovered and critically endangered: Vipera anatolica Eiselt and Baran 1970, of the Western Taurus Mountains (Turkey) with remarks on its ecology, Herpetozoa, vol.28, pp.141-148, 2016.

, After completing a Master's degree at the University of Zürich, Switzerland, on geographic variation and the effects of inbreeding on the Dice Snake (Natrix tessellata), and a doctoral degree on hybrid zones in North American watersnakes (Nerodia fasciata and N. sipedon) at Old Dominion University, he currently is associated with the State University of

I. Rome, His work volume produced more than 130 professional and popular publications/reports and two books on water snakes including topics on evolution, ecology, biodiversity and conservation. Many expeditions and a passion for photography has led him to all relevant continents. Current (2020) principal study sites are located in Turkey

, His research includes biochemistry and pharmacology of snake venoms, and the ecology and systematics of amphibians and reptiles of Turkey. He worked as a reptile specialist in several projects related to biodiversity monitoring and conservation supported by the Government of Turkey, Molecular Biology and Genetics, 2008.

, His research focuses on systematics (taxonomy), ecology and diversity of amphibians and reptiles of Turkey. He also works on biochemical and pharmacological properties of snake venoms and amphibian skin secretions, Izmir, and M.Sc. and Ph.D. degrees in Biology/Zoology from the Institute of Natural and Applied Sciences

, He received his university education at Harran University in ?anliurfa (B.S. and M.S. degrees) and Ege University in ?zmir, Turkey. His interests cover biodiversity, ecology, systematics, molecular phylogeny of reptile and amphibians, and venom studies of vipers. Mehmet contributes regularly to the Amphibians and Reptiles Monitoring & Photography Society in Turkey. He has authored or co-authored over 40 peerreviewed papers on herpetology and is editor for Biharean Biologist, Commagene Journal of Biology, and Acta Biologica Turcica