This months Full members content is:
Notes on the Ecology of Green Ratsnakes (Senticolis triaspis) in Southeastern Arizona
Authors: William R. Radke1 AND Jacob W. Malcom1,2
1 San Bernardino National Wildlife Refuge, PO Box 3509, Douglas, Arizona 85608, USA.
2 Current address: University of Texas at Austin, Section of Integrative Biology, Patterson Laboratories, Austin, Texas, 78712
Abstract.—The Green Ratsnake (Senticolis triaspis) has a broad range that extends from Central America north into the Madrean region of southeastern Arizona and southwestern New Mexico, yet very little is known about its ecology. We used radio telemetry to examine activity patterns, thermoregulating behavior, and habitat use of the ratsnake in southeastern Arizona. Telemetered snakes maintained an average temperature near 25°C throughout the active season (May through October), and preferentially used desertscrub and rocky east-facing slopes (females), or riparian areas (male). The scarcity of Green Ratsnakes dictates that ecological information, and a more complete picture of their conservation needs, will be gathered slowly.
Experimental ophitoxemia produced by the opisthoglyphous lora snake (Philodryas olfersii) venom
Authors: Alexis Rodríguez-Acosta; Karel Lemoine; Luis Navarrete; María E. Girón; Irma Aguilar Immunochemistry Section, Instituto de Medicina Tropical "Felix Pifano", Universidad Central de Venezuela, Caracas, Venezuela ABSTRACT Several colubrid snakes produce venomous oral secretions. In this work, the venom collected from Venezuelan opisthoglyphous (rear-fanged) Philodryas olfersii snake was studied. Different proteins were present in its venom and they were characterized by 20% SDS-PAGE protein electrophoresis. The secretion exhibited proteolytic (gelatinase) activity, which was partially purified on a chromatography ionic exchange mono Q2 column. Additionally, the haemorrhagic activity of Philodryas olfersii venom on chicken embryos, mouse skin and peritoneum was demonstrated. Neurotoxic symptoms were demonstrated in mice inoculated with Philodryas olfersii venom. In conclusion, Philodryas olfersii venom showed proteolytic, haemorrhagic, and neurotoxic activities, thus increasing the interest in the high toxic action of Philodryas venom. Key-words: Colubridae. Haemorrhage. Neurotoxic. Philodryas olfersii . Proteolytic activity. Venom.
A Guide to Rootbeer Morphs - Cornsnake (Pantherophis gutttatus) X Great Plains Ratsnake (Pantherophis emoryi) which can be found in the morphs & locality section of the site
We have launched our sister site today http://www.reptilesurveys.info a site specifically to run a series of surveys, on various aspects of the hobby, ratsnake husbandry, breedinig etc. The site is open to anyone, anywhere to participate in, as, that way, we feel we will get a broader audience and greater participation. There is a simple captcha to complete before taking the survey, this is in place soley to stop spam bots from submitting there junk through it. The results of the surveys will be published on the Ratsnake Foundation and also in other herpetological societies newsletters who would like to co-operate with us gathering data.
Please take a moment to visit the site and take the survey your participation is greatly appreciated.
If you have an idea for a survey please post in the members lounge in this thread - if you would like to make your own survey up, with questions then we can get that included on the site for you.
Ratsnakes Digest our quarterly newsletter will be published on the 7th July, some of the features in this issue are:
Egg Rolling in Elaphe Eggs - Marc Frevola
What Does A Snake Really Hear - Sue Knight
Cave Fauna - Liz Price
No medium Incubation Technique - Snake Ranch
Notes on Elaphe davidi - Scott Lupien |
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