return to main index

  mobile - desktop
follow us on facebook follow us on twitter follow us on YouTube link to us on LinkedIn
 
click here for Rodent Pro
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: Kingsnake . . . . . . . . . .  Herp Photo of the Day: Happy Earth Day . . . . . . . . . .  Bay Area Herpetological Society Meeting - Apr 26, 2024 . . . . . . . . . .  Calusa Herp Society Meeting - May 02, 2024 . . . . . . . . . .  Southwestern Herp Society Meeting - May 04, 2024 . . . . . . . . . .  Exotic Pets Expo - Manasas - May 05, 2024 . . . . . . . . . .  Greater Cincinnati Herp Society Meeting - May 07, 2024 . . . . . . . . . .  St. Louis Herpetological Society - May 12, 2024 . . . . . . . . . .  Colorado Herp Society Meeting - May 18, 2024 . . . . . . . . . .  Chicago Herpetological Society Meeting - May 19, 2024 . . . . . . . . . .  San Diego Herp Society Meeting - May 21, 2024 . . . . . . . . . .  Bay Area Herpetological Society Meeting - May 24, 2024 . . . . . . . . . . 
Southwestern Center for Herpetological Research
full banner - advertise here .50¢/1000 views
click here for Rodent Pro
pool banner - $50 year

A slightly more elaborate answer...

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

Posted by: WW at Mon Nov 22 08:33:00 2004  [ Report Abuse ] [ Email Message ] [ Show All Posts by WW ]  
   

Scott,

Although my previous reply addresses most issues you raise, some aspects of nomenclature require further elaboration:

>>In Table one you refer to many Acanthophis sp., why did'nt you use the names that you believe are now correct for those species eg Acanthophis sp. Anthony lagoon, Barkely Tableland N.T....would therefore become either A. hawkei or being conservative A. rugosus?

Because mitochondrial DNA data alone cannot resolve species status. As we wrote on page 11:

"Our data reveal strongly supported, hitherto unsuspected patterns of genetic diversity within the death adders (Figs. 2 and 3). These patterns differ radically from all previous interpretations of species limits within this medically important genus. This study thus provides a first phylogenetic framework for a thorough and much-needed revision of the systematics of the genus, although a phylogeographic study based on mitochondrial DNA may not be able to resolve species limits without additional evidence, especially where the suspected species are parapatric or sympatric (Puorto et al., 2001). "

and:

"However, we refrain from attempting to diagnose species limits on the basis of mtDNA phylogeography alone (Puorto et al., 2001). More detailed and rigorous studies combining an analysis of morphology (particularly multivariate morphometrics—e.g., Wuster
and Broadley, 2003; Wuster et al., 2001b) and nuclear markers are required to resolve the population systematics of these snakes. The Merauke death adders were described as Acanthophis antarcticus
rugosus by Loveridge (1948). We suggest referring to the rough-scaled Irian Jaya death adder and the Northern Territory and northwestern Queensland death adders of clade A1 as the A. rugosus complex, pending further revisions."


>>Why not use the Name Pseudechis pailsei instead of "Pseudechis cf. australis" Mount Isa and Pseudechis rosignoilii for "Pseudechis cf. australis" Irian Jaya.

Because using the names as such would have implied acceptance of these forms as separate species. There was no basis for doing so in the intro and materials etc of the paper, since there was little or no published evidence supporting their species status.


Now, from our data it certainly looks like they are separate species, but, as noted above, mtDNA alone cannot determine this. Using the term "Pseudechis cf. australis" simply indicates that we have reserved judgement on the issue.


>>On the name Pseudechis itself why not make the change to Cannia?
>>
>>In reference to Pseudechis porphyriacus... "the position of the latter sister taxon of all other Pseudechis is only weakly supported"
>>
>>so therefore should they remain Pseudechis (Being the type species" and the others moved into Cannia.

See my response to Richard Wells. In the absence of clear evidence that Pseudechis is non-monophyletic, we decided not to fix it.

Cheers,

Wolfgang


>>
>>Was ther any reason for not looking at specimens from the type locality for Cannia australis?
>>
>>Regards,
>>
>>Scott Eipper.
-----
WW Home


   

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


<< Previous Message:  A few Questions.... - Scott Eipper, Fri Nov 19 18:31:16 2004