Ngel Nyaki

If you are interested in using data from Ngel Nyaki, please read the Terms & Conditions prior to submitting your Data Request Form.

Data Request: In order to access the Ngel-Nyaki plot data, a "Data Request Form" must be completed. This form requires that the applicant agrees to comply with the "Terms and Conditions" for the use of Ngel-Nyaki plot data as described here.

Non-transferability: Prospective investigators are not permitted to share the Ngel-Nyaki plot data with other parties not included on the Data Request Form under any circumstances.

Copies of articles: Copies of articles should be sent to the PIs: Dr. Hazel Chapman (, Iveren Abiem ( and Dr. David Kenfack ( prior to submission. Once published, any manuscript making use of the Ngel-Nyaki data should be sent to the PIs.  Upon publication, a PDF copy of (or a link to) the article should also be sent to

Limitation of Use: Prospective investigators are not permitted to use the Ngel-Nyaki plot data for projects or analyses other than those explicitly described in the Data Request Form and their research project description. A new data request form must be submitted for any new use of the data. Prospective investigators are also not permitted to sell the data, or use them in any way for commercial gain.

Data Citation: Any publication that uses Ngel-Nyaki plot data should state the specific version number of the data set used for analysis. This version number will be provided after the data request has been approved.

Acknowledgements: All publications that include the Ngel-Nyaki 20.28-ha plot data must acknowledge the institutions and funding that enabled the establishment of the plot with the following acknowledgement:

The 20.28-ha Ngel-Nyaki plot is a collaborative project of the Nigerian Montane Forest Project, the University of Canterbury, New Zealand and the Chester Zoo, United Kingdom, in partnership with the Forest Global Earth Observatory of the Smithsonian Tropical Research Institute. Funding for the first census was provided by the T.Y. Danjuma Foundation.

Find the request form for Ngel ​Nyaki's tree data here.