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Supplemental Information

Leaf litter mass and nitrogen concentration data across a mean annual temperature gradient on the Island of Hawaii

DOI: 10.7287/peerj.preprints.609v1/supp-1

Leaf litter decay rate constant (k) and leaf litter residence time in days (1/k) for replicate litterbag clusters across a mean annual temperature gradient on the Island of Hawaii

DOI: 10.7287/peerj.preprints.609v1/supp-2

Additional Information

Competing Interests

Christian P Giardina is an employee of the USDA Forest Service.

Author Contributions

Lori D Bothwell conceived and designed the experiments, performed the experiments, analyzed the data, wrote the paper, prepared figures and/or tables, reviewed drafts of the paper.

Paul C Selmants conceived and designed the experiments, performed the experiments, analyzed the data, wrote the paper, prepared figures and/or tables, reviewed drafts of the paper.

Christian P Giardina conceived and designed the experiments, contributed reagents/materials/analysis tools, reviewed drafts of the paper.

Creighton M. Litton conceived and designed the experiments, contributed reagents/materials/analysis tools, reviewed drafts of the paper.

Field Study Permissions

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

Permission to access the Hawaii Experimental Tropical Forest was provided by the USDA Forest Service and the State of Hawaii Department of Land and Natural Resources Division of Forestry and Wildlife through approval of an annual permit application. Permission to access the Hakalau Forest National Wildlife Refuge was provided by the US Fish and Wildlife Service through approval of an annual permit application. Neither of these permits are individually numbered.

Funding

This study was funded by the National Science Foundation through the Pacific Internship Program for Exploring Science (PIPES; BIO-1005186) and the Ecosystem Science Program (DEB-0816486). Additional funding was provided by the USDA Forest Service, Institute of Pacific Islands Forestry, Pacific Southwest Research Station (Research Joint Ventures 09-JV-11272177-029 and 12-JV-11272139-047) and the College of Tropical Agriculture and Human Resources, University of Hawaii at Manoa via the USDA National Institute of Food and Agriculture, Hatch and McIntire-Stennis Programs (HAW00132-H, HAW01127-H, HAW00188-M, and HAW01123-M). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.


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