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Red- and yellow-footed tortoises, Chelonoidis carbonariaand C. denticulata (Reptilia: Testudines: Testudinidae), in South American savannahs and forests: do their phylogeographies reflect distinct habitats?
paper attached
This earlier thread that brought this article to TFO is closed. I mention it as I am not bringing something new here, but hope to renew conversation.
https://tortoiseforum.org/threads/g...of-you-might-be-interested.28735/#post-269375
I notice a couple of things.
1) On page 8, the image of the two redfoots side by side shows the more oval shape and muted contrast of the southern type, in contrast to images I see here on TFO of 'Bolivian's' with the distinct yellow areola in each scute but no 'barbell' shape. That could tend to indicate that the more northern 'Chaco' type are less derived than more northern populations, from the more southern 'Chaco' type.
To travel a linear distance along this transect and perform both a physical record and genetic analysis, I don't know if the genetic analysis tools exits to parse that out?
2) The team of authors do not address the 'giant yellowfoots' that do exist. Does any one have any awareness of a paper on this topic?
paper attached
This earlier thread that brought this article to TFO is closed. I mention it as I am not bringing something new here, but hope to renew conversation.
https://tortoiseforum.org/threads/g...of-you-might-be-interested.28735/#post-269375
I notice a couple of things.
1) On page 8, the image of the two redfoots side by side shows the more oval shape and muted contrast of the southern type, in contrast to images I see here on TFO of 'Bolivian's' with the distinct yellow areola in each scute but no 'barbell' shape. That could tend to indicate that the more northern 'Chaco' type are less derived than more northern populations, from the more southern 'Chaco' type.
To travel a linear distance along this transect and perform both a physical record and genetic analysis, I don't know if the genetic analysis tools exits to parse that out?
2) The team of authors do not address the 'giant yellowfoots' that do exist. Does any one have any awareness of a paper on this topic?