mobile - desktop |
3 months for $50.00 |
News & Events:
|
|
[ Login ] [ User Prefs ]
[ Search Forums ] [ Back to Main Page ] [ Back to Taxonomy Discussion ] [ Reply To This Message ] [ Register to Post ] |
Posted by: whmartin at Thu Sep 21 16:58:03 2006 [ Report Abuse ] [ Email Message ] [ Show All Posts by whmartin ] The results of a rangewide genetics study (mtDNA)on Crotalus horridus were reported by Clark et al. (2003). 1) The genetic differences were slight and do not warrant subspecific classification for any segment of the population. 2) The genetic breakdown is at complete odds with the morphological breakdown. Based on morphology (larger size and distinctive color pattern the southern portion of the population was formerly recognized as a subspecies, Crotalus horridus atricaudatus, the Canebrake Rattlesnake. In contrast the DNA study showed two major lineages: 1) an eastern lineage from northeast Florida northward up the Atlantic Coastal Plain and eastern edge of the Appalachians to New Jersey and New England; and 2) a western lineage from the Gulf States northward through the Appalahians and the western parts of the range to Oklahoma and north to Minnesota and Wisconsin. [ Reply To This Message ] [ Subscribe to this Thread ] [ Show Entire Thread ] | ||
>> Next Message: RE: Timber vs. Canebrake - aspidoscelis, Wed Oct 4 13:41:14 2006 | ||
<< Previous Message: RE: Timber vs. Canebrake - justinian2120, Wed Sep 20 16:30:35 2006 |
AprilFirstBioEngineering | GunHobbyist.com | GunShowGuide.com | GunShows.mobi | GunBusinessGuide.com | club kingsnake | live stage magazine
|