Abstract
Species abundance is expected to decrease from the centre towards the edge of their ecological niches (abundant niche-centre hypothesis). Recently, Osorio-Olvera et al. (2020) reported strong support for the abundant niche-centre relationship in North American birds. We demonstrate here that methodological decisions strongly affected perceived support. Avoiding these issues casts doubt on conclusions by Osorio-Olvera et al. and the putative support for the abundant nichecentre hypothesis in North American birds.
Competing Interest Statement
The authors have declared no competing interest.
Footnotes
Funding: TAD was supported by Louisiana State University.
Respond to reviewer concerns, and clarify some text and analyses.
Copyright
The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY 4.0 International license.
Posted May 30, 2020.
The abundant-centre is not all that abundant: a comment to Osorio-Olvera et al. 2020
