Birds in a tree (1 Viewer)

[Peter Kovalik]

G. C. Gibb, 2010. Birds in a tree : a journey through avian phylogeny, with particular emphasis on the birds of New Zealand : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Genetics
download page

 

[shymollymawk]

pdf is corrupted unfortunately. It would be interesting to know where the Piopios are supposed to belong.

 

[l_raty]

pdf works like a charm with Evince under Linux--but I know from experience that this program is much less sensitive to slight corruptions than Acrobat under Windows.

Haven't read the whole thing in detail, but apparently she found Piopio cyt-b sequences very different from the previously published seq, and concluded that this early seq was wrong. (Not too infrequent with ancient DNA.)

"Analyses of our new sequences clearly show that the piopio falls within the core Corvoidea (Fig. 6.3). Resolution within the core Corvoidea is low, partially because many species in this clade have little available mitochondrial sequence data (Table 6.1). However, the piopio tends to group with the vireos and there is also some signal for affiliation with Rhipidura (fantails) and Sphecotheres (figbirds). At this level of resolution, the piopio is not showing affiliation with many previously predicted groups, such as bowerbirds, birds of paradise and satinbirds (cnemophiline birds of paradise, Olson et al. 1983), so this is a novel, but perhaps not unexpected finding." (p.181)

 

[Peter Kovalik]

pdf is corrupted unfortunately. It would be interesting to know where the Piopios are supposed to belong.

Gibb 2010 whole pdf on rapidshare

 

[Peter Kovalik]

Davis KE, Page RDM. Reweaving the Tapestry: a Supertree of Birds. PLOS Currents Tree of Life. 2014 Jun 9. Edition 1. doi: 10.1371/currents.tol.c1af68dda7c999ed9f1e4b2d2df7a08e.

 

[Ian Lewis]

Davis KE, Page RDM. Reweaving the Tapestry: a Supertree of Birds. PLOS Currents Tree of Life. 2014 Jun 9. Edition 1. doi: 10.1371/currents.tol.c1af68dda7c999ed9f1e4b2d2df7a08e.

Interesting to see that the falcons are back with the other raptors in this tree and not forming a clade with the parrots and passerines.

Ian

 

[l_raty]

Interesting to see that the falcons are back with the other raptors in this tree and not forming a clade with the parrots and passerines.

Well, I wouldn't say that they are "back" there, but rather that they are still there.
It's a supertree: a tree built from the integration of many different (generally less-inclusive) trees published over the years in the literature. What this position of the falcons reflects, is the fact that in the source trees, most placed the falcons there: the "new" position must have been present in a minority of recent trees only, and it doesn't (yet) overcome the old position.

 

[MJB]

Well, I wouldn't say that they are "back" there, but rather that they are still there.
It's a supertree: a tree built from the integration of many different (generally less-inclusive) trees published over the years in the literature. What this position of the falcons reflects, is the fact that in the source trees, most placed the falcons there: the "new" position must have been present in a minority of recent trees only, and it doesn't (yet) overcome the old position.

Laurent,
In tennis, your explanation would qualify as an 'ace' and in cricket, a 'yorker'!:t:
MJB

 

[ntbirdman]

Interesting to see that the falcons are back with the other raptors in this tree and not forming a clade with the parrots and passerines.

Not just falcons but it also groups owls with falcons and hawks. This supertree dataset includes both morphology and molecular trees. As you would expect based on their dietary convergence, morphology strongly groups the raptors (hawks, falcons, and owls) together despite all recent molecular studies saying otherwise. I think that is what we're seeing here.