Oviductal egg development in the curly tailed lizard Leiocephalus carinatus aquarius.
Revista Cubana de Ciencias Biológicas 5 (2): 1-4.
Leiocephalus carinatus (saw-scaled curly-tailed lizard) has thirteen currently recognized subspecies that occur throughout Cuban Archipelago, Cayman Islands, Swan Islands, Bahama Islands and introduced in Florida. It’s a diurnal species that inhabits xerophilic vegetation, mogote complex, coastal and subcoastal microphyllous forest, semidesert thorny crubwoodland, associated with urban habitats (nearby to the coastal zones and rocky ground in the beach) and abandoned walls and concrete blocks.
Reproduction periods for L. carinatus are continuous and increasing in some months. Sexual maturity in males reach between 78.6-81.2 mm SVL and females 70.2-73.0 mm SVL. Eggs dimensions and deposition were previously reported for some subspecies, and only for two subspecies (L. c. armouri, L. c. carinatus) has been reported data related with ovarian follicles and oviductal eggs to determine the ovarian cycle and clutch characteristics. Here we report a synchronized development of oviductal eggs in the curly-tailed lizard Leiocephalus carinatus aquarius.
A Review if the Range, Distribution, and Ecology of the Invasive Northern Curly-tailed Lizard in Florida.
Florida Park Service - 2003 "Parknership" Technical Report: 1-5.
We examined the distribution and ecology of the exotic northern curly-tailed lizard (Leiocephalus carinatus armouri) in Florida. Published literature and especially unpublished documents and data were reviewed and synthesized. Our findings suggest that both the range and distribution of the Florida population have expanded at a rapid rate during the last 60 years. Ecological effects o r this species on Florida's native lizards and other fauna have not been quantified and require thorough evaluation.
Recent Invaders in Small Mediterranean Islands: Wild Boars Impact Snakes in Port-Cros National Park.
Diversity 2021, 13, 498. https://doi.org/10.3390/d13100498.
Mediterranean islands host unique ecosystems that are particularly vulnerable to invasive species. However, knowledge regarding the precise impact of invasive species on local biodiversity remains limited for many of these systems. Here we report on the negative impacts of invasive wild boars (Sus scrofa) on native snakes on islands in the Mediterranean basin. Capture-mark-recapture was initiated in 2012 on two snake species (Montpellier snake, Malpolon monspessulanus and Ladder snake, Zamenis scalaris) across two islands of Port-Cros National Park. Several wild boars, an invasive species, reached the islands in 2007. They remained confined to small areas of the islands for several years. In Port-Cros, the numbers of wild boars suddenly increased in 2015, and rapidly colonized the whole island damaging vast land surfaces. In Porquerolles, wild boars did not proliferate. This offered an opportunity to examine the impact of wild boar outbreak with a Before-After Control-Impact design (BACI). Snake counts and mark-recapture modeling showed that demographic traits were stable before 2016 for both snake species on both islands. As well as abundance, recruitment, and population growth rate of Montpellier snakes significantly declined where wild boars proliferated but remained constant on the island where they did not. Wild boars probably impacted snake numbers through habitat destruction and direct killing. The rapid decline of snakes (apex predators) and intensive uprooting that strongly damage ground dwelling species (plants, animals) suggest that wild boars represent a serious threat to island biodiversity. As elsewhere around the world, these invasive ungulates proliferate in the Mediterranean basin, they are proficient swimmers and exhibit a remarkably high invasive potential. We recommend vigilance and fast eradication to prevent population outburst; even a few a localized non-proliferating individuals contain the latent potential for devastating outbreaks.
Control of the ladder snake (Rhinechis scalaris) on Formentera using experimental live-traps.
In: C.R. Veitch, M.N. Clout, A.R. Martin, J.C. Russell and C.J. West (eds.) (2019). Island invasives: scaling
up to meet the challenge, pp. 332–336. Occasional Paper SSC no. 62. Gland, Switzerland: IUCN.
The ladder snake (Rhinechis scalaris ) is a recent alien invasive species found on Formentera (83 km2), in the Balearic Archipelago (4,492 km2). It has been introduced in the last decade as cargo stowaway hidden within ornamental olive trees from the Iberian Peninsula, causing negative impacts on native fauna. This paper describes the methodology used to reduce the ladder snake population as a first attempt since it was detected in 2006. For this purpose, an experimental live-trap was designed by the wildlife management team of the Consorci per a la Recuperació de la Fauna de les Illes Balears (COFIB) during the 2016 campaign. As a result, 314 R. scalaris were trapped in an area of 472 ha, achieving an efficiency of up to 0.167 captures per trap and night, and 0.040 captures per unit effort on average. This outcome encourages the use of the live-trap as a cost-effective method for reducing the snake population in Formentera. Nonetheless, this method should be considered a starting point toward R. scalaris control.
Un serpente nuovo per la Fauna italiana: il Colubro scalare, Elaphe scalaris (Schinz, 1822).
Atti Soc.ital.Sci.nat., Museo civ. Stor. Nat. Milano, 128 (3-4): 314-316.
First time found in Italy the Ladder Snake, Elaphe scalaris (Schinz, 1822) (Reptilia, Colubridae). A specimen of Ladder Snake, Elaphe scalaris, was recently found near Ventimiglia, Imperia. This is the first record for this species in Italy.
Handbuch der Reptilien und Amphibien Europas - Schlangen (Serpentes) III: Viperidae.
420 Seiten. AULA-Verlag. 978-3-89104-617-3 (ISBN)
Der dritte Teil des Schlangenbandes hat die Vipern zum Thema, die einzige Familie in Europa, deren Gift dem Menschen gefährlich werden kann. Der Aufbau der Artkapitel entspricht dem in Band 3/ I und 3/ II A. Insgesamt werden 13 Arten besprochen:
Agkistrodon halys (Halysgrubenotter) – Macrovipera lebetina (Levanteotter) – Macrovipera schweizeri (Kykladenviper) – Vipera ammodytes (Sandotter) – Vipera aspis (Aspisviper, Juraviper) – Vipera berus (Kreuzotter) – Vipera dinnicki (Westkaukasische Otter) – Vipera kaznakovi (Kaukasus-Otter) – Vipera latastii (Stülpnasenotter) – Vipera nikolskii (Nikolskij`s Viper) – Vipera seoanei (Nordiberische Kreuzotter) – Vipera ursinii (Wiesenotter) – Vipera xanthina (Bergotter).
A new subspecies of Ottoman viper, Montivipera xanthina (Gray, 1849), (Squamata: Viperidae) from Geyik Mountains, Mediterranean Turkey.
Ecologica Montenegrina 22: 214-225.
A new Ottoman viper subspecies, M. xanthina varoli n. subsp., is described from the higher altitudes of Gündoğmuş (Antalya). The new subspecies differs from the other M. xanthina populations by pholidosis; higher number of intercanthals and lowernumber of subcaudalia. Also, the whiteness between windings or spots on dorsum pattern were observed in new subspecies, similar to the southern populations. Furthermore, the spots on the ventrals became denser in the mid-body and forms darker colorizationat the end of body of the males and the tail tips are yellowish-orange or light orange on both sexes.
On the origin of the asp viper Vipera aspis hugyi Schinz, 1833, on the island of Montecristo, Northern Tyrrhenian Sea (Tuscan archipelago, Italy).
Herpetological Bulletin  117: 1-9.
For some time there has been debate regarding whether the asp viper, Vipera aspis (Linnaeus, 1758), belonged to the original fauna of the small island of montecristo, Northern tyrrhenian sea (tuscan archipelago, italy). it has long been believed that the asp viper population of this island is made up of the subspecies Vipera aspis hugyi Schinz, 1833, also found in southern continental italy and sicily. a recent genetic study confirmed that this colonisation was exclusively mediated by humans, but also revealed that the extant vipers of montecristo displayed closest relationships with those found in the Palermo region of sicily, and southern italy. it might be assumed that the animals that were introduced onto montecristo originated from western sicily. in light of recent contributions the aim of this paper is to make an original contribution regarding the times and mode of such an importation that was performed possibly around the 5th century.
Beobachtungen an Mauereidechsen auf der Insel Elba.
Es wird über Beobachtungen an Mauereidechsen während eines einwöchigen Aufenthalts auf Elba berichtet. Vom Strand bis auf den Gipfel des Monte Capanne bewohnen die Mauereidechsen jeglichen Lebensraum. Nur in Dörfern und Städten sind sie auch in geeigneten Habitaten selten anzutreffen. Grund dafür dürften die allgegenwärtigen Katzen sein. Die Fluchtdistanz war für Mauereidechsen relativ hoch, selbst an Stellen, die von Menschen stark frequentiert werden, wie zum Beispiel Parks, Parkplätze und der Gipfel des Monte Capanne. Interessant war zu beobachten, dass in dichten Eichenwäldern, wo die Sonne nicht auf den Boden schien, die Tiere bis in etwa zwei Meter Höhe an Baumstämmen saßen um sich zu sonnen.
Die Ruineneidechsen (Podarcis siculus tyrrhenicus) der Insel Giglio.
Elaphe 2-2011: 51-55. Mit 19 Farbforos und einer Landkarte.
Der Artike l enthält Angaben zur Herpetofauna Giglios und berichtet über eine eintägige Exkursion mit Schwerpunkt auf der Beobachtung und Dokumentation der Ruineneidechsen.