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Supplemental Information

Generalized linear mixed models predicting bird abundance for selected bird functional group categories

DOI: 10.7287/peerj.preprints.658v1/supp-1

Parameter estimates and standard errors of top-ranked models

DOI: 10.7287/peerj.preprints.658v1/supp-2

Eigenvalues of the correlation matrix obtained from the principal component analysis of the predictor variables

DOI: 10.7287/peerj.preprints.658v1/supp-3

Eigenvectors obtained from the principal component analysis of the predictor variables

DOI: 10.7287/peerj.preprints.658v1/supp-4

Functional groups of bird species recorded from Guangua Wereda of Awi Zone, Gojjam, Amhara National Regional State, NW Ethiopia

DOI: 10.7287/peerj.preprints.658v1/supp-5

Additional Information

Competing Interests

The authors declare they have no competing interests.

Author Contributions

Haile Yineger conceived and designed the experiments, performed the experiments, analyzed the data, contributed reagents/materials/analysis tools, wrote the paper, prepared figures and/or tables, reviewed drafts of the paper.

Jane M Hughes contributed reagents/materials/analysis tools, prepared figures and/or tables, reviewed drafts of the paper, critically commented data analyses for this work.

Field Study Permissions

The following information was supplied relating to field study approvals (i.e., approving body and any reference numbers):

Permit to conduct this study was sought from the Guangua Wereda Department of Rural Development and Agriculture, Chagni, Ethiopia (permit number: G/W/GIB-710/KB/3/1).


This work was funded by a Griffith University Postgraduate Research Scholarship to the first author. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

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