About the Authors

Martina Heiderer

Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Supervision, Validation, Writing – original draft

m.heiderer@zoovienna.at

Affiliation Tiergarten Schönbrunn GmbH, Vienna, Austria

Carmen Westenberg

Roles Data curation

Affiliation Tiergarten Schönbrunn GmbH, Vienna, Austria

Desheng Li

Roles Conceptualization

Affiliation Wolong Nature Reserve Administration Bureau, Dujangyan City, PR China

Hemin Zhang

Roles Conceptualization

Affiliation Wolong Nature Reserve Administration Bureau, Dujangyan City, PR China

Doris Preininger

Roles Formal analysis, Writing – review & editing

Affiliation Tiergarten Schönbrunn GmbH, Vienna, Austria

Eveline Dungl

Roles Conceptualization, Writing – review & editing

Affiliation Tiergarten Schönbrunn GmbH, Vienna, Austria

Competing Interests

Part of the authors [MH, CW, DP, EW] are employed as curator or researcher by the Tiergarten Schönbrunn GmbH (Vienna Zoo) Vienna, Austria. The Vienna Zoo is a commercial company and as zoological institutions it focuses on research and education and employs scientists. This does not alter our adherence to PLOS ONE policies on sharing data and materials.