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Supplemental Information

Data analysed for this study

The data entered in the GLMM and to compare attracted versus dispersed pairs are provided here.

DOI: 10.7287/peerj.preprints.568v1/supp-1

Additional Information

Competing Interests

The authors declare they have no competing interests.

Author Contributions

Elisabetta Palagi 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.

Ivan Norscia 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.

Animal Ethics

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

Since the study was purely observational the Animal Care and Use board (University of Pisa) waives the need for a permit. The study was conducted with no manipulation of animals.

Field Study Permissions

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

The study was carried out in the private Reserve of Berenty (South Madagascar) and at the Pistoia Zoo (Pistoia, Italy). The owners, Mr De Heaulme (and family) and Mr Cavicchio permitted us to observe animals.

Funding

The research in the wild was funded by the parks Giardino Zoologico di Pistoia, Parco Zoo Falconara (Falconara, Italy), and Parco Zoo Punta Verde (Lignano Sabbiadoro, Italy). Funding covered travel and subsistance fees. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.


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