follow us on facebook follow us on twitter follow us on YouTube link to us on LinkedIn
Zoo Med Aspen Snake Bedding  
Click here for Snake Morphology
Mice, Rats, Rabbits, Chicks, Quail
Available Now at RodentPro.com!
Locate a business by name: click to list your business
search the classifieds. buy an account
events by zip code list an event
Search the forums             Search in:
News & Events: Herp Photo of the Day: Happy Rattlesnake Friday! . . . . . . . . . .  Indian Star Tortoises . . . . . . . . . .  ReptiCon Birmingham - Jan. 20-21, 2018 . . . . . . . . . .  ReptiCon Baltimore - Jan. 20-21, 2018 . . . . . . . . . .  Colorado Herp Society Meeting - Jan. 20, 2018 . . . . . . . . . .  ReptiCon Orlando - Jan. 27-28, 2018 . . . . . . . . . .  ReptiCon Oklahoma City - Jan. 27-28, 2018 . . . . . . . . . .  New England Reptile Expo - Jan. 28, 2018 . . . . . . . . . .  Calusa Herp Society Meeting - Feb. 01, 2018 . . . . . . . . . .  ReptiCon Jackson - Feb. 03-04, 2018 . . . . . . . . . .  ReptiCon Charleston - Feb. 03-04, 2018 . . . . . . . . . .  Jacksonville Herp Society Meeting - Feb. 03, 2018 . . . . . . . . . . 

full banner - advertise here .50¢/1000 views
click here for Rodent Pro
pool banner - $50 year

Russian Rat Snake Home Range Accurate?

[ Login ] [ User Prefs ] [ Search Forums ] [ Back to Main Page ] [ Back to Rat Snakes ] [ Reply To This Message ]
[ Register to Post ]

Posted by: Ameron at Fri Nov 15 12:28:09 2013  [ Report Abuse ] [ Email Message ] [ Show All Posts by Ameron ]  
   

In a recent post, I mentioned my concern over the official range map of this species:

"Why are they found deep into South Korea, including offshore islands?"

I know that most species range maps are a best-guess effort and may be very outdated, but there is significant evidence that this snake has a wider range than previously known.

Official range maps show Elaphe schrencki extending only in northeast Korea. Those references are incorrect. Internet searches on the alternate name “Manchurian Black Water Snake” find photos of wild specimens below the boundary with North Korea, including on offshore islands southwest of Incheon:

Adults
Ongjin, Incheon Korea (southwest island)
http://www.inaturalist.org/observations/30904
http://www.inaturalist.org/observations/30903
http://www.inaturalist.org/observations/30902
http://www.inaturalist.org/observations/91019

Juvenile
Goesan Korea (inland south-central)
https://www.inaturalist.org/observations/91024

Note the darker colors and weaker patterns. Bold patterns and high yellows seem to fade in southern specimens. (Ironic, since the real Korean Rat Snake, Elaphe anomala, is lighter in color than Russians, with yellow as a common base color.)

I hope that seasoned veterans like Spuckler, Mong, Cochran & others will comment on my findings & theory. I valued your time & efforts, and look forward to serious replies.

Ameron
Portland/Vancouver

1.0 Elaphe schrencki (Anerythristic)
1.0 Pantherophis guttatus (Miami phase)
Link


   

[ Reply To This Message ] [ Subscribe to this Thread ] [ Show Entire Thread ]


>> Next Message:  RE: Russian Rat Snake Home Range Accurate? - cochran, Sat Nov 16 18:52:33 2013 image in post