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Supplemental Information

Appendix A, B & C

Appendix A: The different vegetation types and USO types in the southern Cape Appendix B: The species list of underground storage organs found in the 100 plots, sampling the vegetation of the southern Cape. Appendix C: USO foraging return rates

DOI: 10.7287/peerj.preprints.1573v1/supp-1

Additional Information

Competing Interests

Richard M Cowling is an Academic Editor for PeerJ.

Author Contributions

Elzanne Singels conceived and designed the experiments, performed the experiments, analyzed the data, wrote the paper, prepared figures and/or tables.

Alastair J Potts analyzed the data, contributed reagents/materials/analysis tools, wrote the paper, prepared figures and/or tables, reviewed drafts of the paper.

Karen J Esler conceived and designed the experiments, contributed reagents/materials/analysis tools, reviewed drafts of the paper.

Richard M Cowling conceived and designed the experiments, contributed reagents/materials/analysis tools, wrote the paper, reviewed drafts of the paper.

Curtis W Marean reviewed drafts of the paper.

Jan C De Vynck performed the experiments, reviewed drafts of the paper.

Ethics

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

1) Departmental Ethics Screening Committee (DESC)

2) The ethical research protocol of Stellenbosch University requires screening of studies involving human subjects by the Departmental Ethics Screening Committee (DESC) prior to any research and this study was classified as low risk for subjects. Only studies identified as having a medium to high ethics risks are referred to the Research Ethics Committee for full review.

Field Study Permissions

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

1) CapeNature/ permit number: 0028-AAA007-0006

2) Attached is permit nos. AAA007-000006-0028 dated 13/09/2011 to collect specimens in the Western Cape Province. Please take special note of the standard conditions attached to the permit.

Data Deposition

The following information was supplied regarding data availability:

1) Inter-university Consortium for

Political and Social Research

3) http://www.icpsr.umich.edu/icpsrweb/deposit/index.jsp

Funding

We acknowledge the following sources of funding: National Research Foundation (Grant number: 73664, CPR 2010030500009965) (RMC and KJE), Fynbos Forum (ES), Claude Leon Foundation (AJP), the Oppenheimer Memorial Trust (RMC), National Science Foundation (BCS-0524087, and BCS-1138073) (CWM), the Hyde Family Foundation (CWM), The Templeton Foundation (CWM), and the Institute of Human Origins at Arizona State University (CWM). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.


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