We calculated "evolutionary distinctness" (ED) scores using an updated distribution of phylogenies incorporating a total of 10, 284 extant bird species as recognized by the IUCN, based on the distribution of "Hackett backbone" trees used by Jetz et al. [2014]. The ED metric was first presented by Redding [2003], (also known as the "Fair Proportion" measure), and sums the lengths of the branches on the path from a species to the root, with each branch length inversely weighted by the number of living species that ultimately descend from it. Next we compiled a list of all species indicated as being held in captivity by the Zoological Information Management System (ZIMS): the largest database regarding ex-situ holdings from 960 institutions worldwide [Species 360, 2016]. A species was scored as being in a zoo if there was a record of at least one individual being held ex-situ in the ZIMS database up to March 2016.
Software used was R.
This dataset was originally deposited in the Simon Fraser University institutional repository.
Note: Up to 1000 features for each file are displayed
Citation
APA Citation:
Biega, A. M., Mooers, A. O., Lamont, M., Bowkett, A. E., & Martin, T. E. (2018). List of global birds with ED scores and zoo holding data [Data set]. SFU Research Data (FRDR). https://doi.org/10.25314/f69396eb-86d1-4aac-9308-dcee7d7d6059