Macrovipera lebetinus schweizeri
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Macrovipera schweizeri, the Milos viper, also known as the Cyclades blunt-nosed viper,[1] [2] is a subspecies of venomous snake in the family Viperidae. The subspecies is endemic to the Cyclades Archipelago of Greece in the Aegean Sea.[3][4][5]
Etymology
The subspecific name, schweizeri, is in honor of Swiss herpetologist Hans Schweizer (1891–1975).[6]
Description
Milos vipers grow to an average total length (including tail) of Template:Convert, with a maximum of Template:Convert.[1]
Geographic range
Milos vipers are found on the Greek islands of the Cyclades Archipelago in the Aegean Sea: Milos, Siphnos, Kimolos and Poliaigos.[3][7][1] The type locality is given as "Insel Milos ".[7][4]
Biology
Feeding
Gut analysis of road killed specimens showed that adults feed on passerine birds, while young vipers under 35 cm feed primarily on Milos wall lizards and European copper skinks. This adaptation to feeding on birds and lizards likely occurred because of the lack of native rodent species in the western Cyclades (house mice and black rats were introduced). While largely terrestrial, they have seasonally arboreal behaviour, foraging for prey in trees on autumn nights.[8]
Conservation status
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This subspecies, M. l. schweizeri, is classified as endangered by the IUCN; less than 4000 adult individuals exist in the wild as of 2022.[3] Furthermore, a continuing decline is observed due to being killed by feral cats,[8] persecution and over-collecting by collectors, and its habitat continues to decline in extent and quality.[3] As of 1998, 500-600 adults were being either removed from the wild or killed per year as a result of illegal collection, road-killing, or persecution.[8]
It is also listed as strictly protected (Appendix II) under the Berne Convention.[9]
Venom
Local medical centres report that snake bites from this species occur on average once per year on Kimolos and 4 times per year on Milos, although there are no recorded fatalities.[8]
It is narrated by G.A. Boulenger in his book The Snakes of Europe that "Dr. de Bedriaga observed this much dreaded snake, the bite of which is probably as bad as that of its Indian ally, the Daboia, Vipera russelli ". It is probable that the snake he assumed was Macrovipera lebetina is in fact the Milos Viper.
References
Further reading
- Werner F (1935). "Reptilien der Ägäischen Inseln ". Sitzungberichte der Kaiserlichen Akademie der Wissenschaften in Wien 1244: 81–117. (Vipera lebetina schweizeri, new subspecies, p. 117). (in German).
External links
- Cyclades blunt-nosed viper (Macrovipera schweizeri) at ARKive. Accessed 26 September 2006.
- Macrovipera schweizeri at Amphibians and Reptiles of Europe. Accessed 9 October 2006.
- Template:NRDB species
- ↑ a b c Mallow D, Ludwig D, Nilson G (2003). True Vipers: Natural History and Toxinology of Old World Vipers. Malabar, Florida: Krieger Publishing Company. 359 pp. Template:ISBN.
- ↑ Steward JW (1971). The Snakes of Europe. Cranbury, New Jersey: Associated University Press (Fairleigh Dickinson University Press). 238 pp. LCCCN 77-163307. Template:ISBN.
- ↑ a b c d Template:Cite iucn
- ↑ a b Template:NRDB species
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- ↑ Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). The Eponym Dictionary of Reptiles. Baltimore: Johns Hopkins University Press. xiii + 296 pp. Template:ISBN. (Macrovipera schweizeri, p. 239).
- ↑ a b McDiarmid RW, Campbell JA, Touré TA (1999). Snake Species of the World: A Taxonomic and Geographic Reference, Volume 1. Washington, District of Columbia: Herpetologists' League. 511 pp. Template:ISBN (series). Template:ISBN (volume).
- ↑ a b c d Script error: No such module "Citation/CS1".
- ↑ Convention on the Conservation of European Wildlife and Natural Habitats, Appendix II at Council of Europe. Accessed 9 October 2006.