Megascops
Screech Owls
Julia Gulka and David P. Mindell![taxon links](/Public/treeImages/Megascops.png?x=-631999895)
![Interpreting the tree](/tree/img/help.gif)
![close box](/tree/img/close.gif)
This tree diagram shows the relationships between several groups of organisms.
The root of the current tree connects the organisms featured in this tree to their containing group and the rest of the Tree of Life. The basal branching point in the tree represents the ancestor of the other groups in the tree. This ancestor diversified over time into several descendent subgroups, which are represented as internal nodes and terminal taxa to the right.
![example of a tree diagram](/tree/img/TreeHelpImage.gif)
You can click on the root to travel down the Tree of Life all the way to the root of all Life, and you can click on the names of descendent subgroups to travel up the Tree of Life all the way to individual species.
For more information on ToL tree formatting, please see Interpreting the Tree or Classification. To learn more about phylogenetic trees, please visit our Phylogenetic Biology pages.
close boxReferences
Proudfoot, G. A., F. R. Gehlbach, and R. L. Honeycutt. 2007. Mitochondrial DNA variation and phylogenography of the eastern and western screech-owls. The Condor 109(3): 617-627.
Wink, M., A El-Sayed, H. Sauer-Gurth, and J. Gonzalez. 2009. Molecular phylogeny of owls (Strigiformes) inferred from DNA sequences of the mitochondrial cytochrome b and the nuclear RAG-1 gene. Ardea 97(4): 581-591.
Title Illustrations
![Click on an image to view larger version & data in a new window](/tree/img/magnify.gif)
Scientific Name | Megascops asio |
---|---|
Location | Laguna Atascosa NWR, Texas, USA |
Specimen Condition | Live Specimen |
Source | Eastern Screech-Owl |
Source Collection | Flickr |
Copyright |
© 2007 Jim Scarff
![]() |
Scientific Name | Megascops kennicottii |
---|---|
Location | Loyola Corners, California, USA |
Specimen Condition | Live Specimen |
Source | Western Screech Owl |
Source Collection | Flickr |
Image Use |
![]() |
Copyright | © 2006 Ashok Khosla |
Scientific Name | Megascops choliba |
---|---|
Location | Brazil |
Specimen Condition | Live Specimen |
Source | Corujinha-do-mato - adulto |
Source Collection | Flickr |
Image Use |
![]() |
Copyright | © 2006 Antonio CBC Lopes |
About This Page
Middlebury College, Middlebury, Vermont, USA
David P. Mindell
California Academy of Sciences, San Francisco, California, USA
Correspondence regarding this page should be directed to Julia Gulka at and David P. Mindell at
Page copyright © 2011
Page: Tree of Life
Megascops. Screech Owls.
Authored by
Julia Gulka and David P. Mindell.
The TEXT of this page is licensed under the
Creative Commons Attribution-NonCommercial License - Version 3.0. Note that images and other media
featured on this page are each governed by their own license, and they may or may not be available
for reuse. Click on an image or a media link to access the media data window, which provides the
relevant licensing information. For the general terms and conditions of ToL material reuse and
redistribution, please see the Tree of Life Copyright
Policies.
- First online 04 June 2007
- Content changed 31 July 2011
Citing this page:
Gulka, Julia and David P. Mindell. 2011. Megascops. Screech Owls. Version 31 July 2011 (temporary). http://tolweb.org/Megascops/100895/2011.07.31 in The Tree of Life Web Project, http://tolweb.org/