• Welcome to BirdForum, the internet's largest birding community with thousands of members from all over the world. The forums are dedicated to wild birds, birding, binoculars and equipment and all that goes with it.

    Please register for an account to take part in the discussions in the forum, post your pictures in the gallery and more.
ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

Search results

thxpress_search_the_forum Search Opus
  1. Mysticete

    Phylogeny of birds

    I would assume so but I don't remember
  2. Mysticete

    Phylogeny of birds

    I've also only done a superficial look, but there is some weird stuff in the ducks, especially the position of clangula seems off.
  3. Mysticete

    Phylogeny of birds

    yeah, but I don't think its based on anything new, right? they state that where data was absent they use "curated taxonomic opinions" which basically amounts to "well I think these two species are related based on x", not something backed up from a unambiguous phylogenetic analysis. I guess its...
  4. Mysticete

    Phylogeny of birds

    I believe its also a variation of a supertree, so it's not really analyzing any sort of new data, just synthesizing existing data.
  5. Mysticete

    Phylogeny of birds

    sort of....but the text is so tiny that you need to max out the zoom AND max out the computer display size for it to be even readable.
  6. Mysticete

    Phylogeny of birds

    I was able to get the tree to read in the program mesquite, although the tree is so big my computer is not happy. I used the tree_annot_summary.nex file. But yes, the lack of a simple pdf with a set of trees is definitely an odd choice, since it kind of makes the tree invisible to anyone who...
  7. Mysticete

    Phylogeny of birds

    Here is the direct link https://www.biorxiv.org/content/10.1101/2024.05.20.595017v1.full.pdf+html
  8. Mysticete

    Phylogeny of birds

    Can someone send me the direct link? The extended data page I found for the paper has captions but no actual figures. There is no extended data link in the supplementary material as far as I can see, and I don't have access, at least at home, to more than the abstract. So if there is a link in...
  9. Mysticete

    Phylogeny of birds

    I didn't see it in the supplemental material: Is there a "readable" tree with the families labeled, especially one with a timescale like the big figure posted here?
  10. Mysticete

    Phylogeny of birds

    The dates here make a lot more sense to me, although I would consider some of the younger dates to probably be a bit underestimated due to sampling biases, since a lot of orders are missing.
  11. Mysticete

    Phylogeny of birds

    Worth noting that the portion of the tree containing hoatzin, and the grebe/flamingo clade has no reported bootstrap values, which makes me think the actual support for the positioning of a lot of taxa is minimal (which isn't particularly surprising; a rapid explosive radiation post K-Pg will do...
  12. Mysticete

    Phylogeny of birds

    I'm looking at the fossil taxa they used to calibrate, which is where I think the issue is coming from Ichthyornis is such an odd choice...it's outside the crown so I don't know why you would assume it represents a good calibration point for the oldest possible crown bird Similarly, some of...
  13. Mysticete

    Phylogeny of birds

    I remain very very skeptical of the dates produced in this study, which are all far older than other recent studies. I just have trouble buying that many crown birds sailed through the K-Pg extinction unscathed, especially given the fossil record.
  14. Mysticete

    Phylogeny of birds

    It's definitely not a case of the computers are still running. I've been part of some studies with enormous datasets, and while they can take weeks, I am unaware of any analysis that has taken years to run, at least with modern cloud computing technology. Not to mention, the longer it takes to...
  15. Mysticete

    Phylogeny of birds

    I don't really see an issue with clade names. They are a tool of convenience, a way for me to label a group using shorthand rather than a long complicated description. Delphinoidea is a lot easier and faster to say than "Clade including Monodontidae, Phocoenidae, and Delphinidae, and all fossil...
  16. Mysticete

    Phylogeny of birds

    There is a clade for pigeons: Columbidae. Unless you define it differently, like make it a broader clade that includes taxa not placed in Columbidae but on the stem, it would be redundant to create a new name.
  17. Mysticete

    Phylogeny of birds

    probably easiest in this case to just keep the the three divisions in as traditional an organization as possible (although within each of those three divisions you would probably have to move stuff around still).
Back
Top