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O editor e o detentor dos direitos deste trabalho é PhytoKeys. This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC) 4.0 License.

Este recurso foi registrado no GBIF e atribuído ao seguinte GBIF UUID: 211493e6-fa19-4dc5-8379-60032af81a57.  PhytoKeys publica este recurso, e está registrado no GBIF como um publicador de dados aprovado por Participant Node Managers Committee.

Batang Toru; Hoteng; Lithocarpus tapanuliensis; Occurrence; Sumatran Fagaceae; Tapanuli orangutan; food habits; Occurrence; Specimen

During our fieldwork in Pilar Forest, a primary forest near the Bulu Mario District, we recorded two individuals of Lithocarpus tapanuliensis. The lower-montane forest is characterised by the abundance of meranti gunung (Shorea platyclados Slooten ex Endert). Sipirok Regency precipitation typically varies during different sections of the year. Maximum monthly precipitation is 296.5 mm and the minimum monthly precipitation is 67 mm, with an average temperature around 28 °C.

All of occurrences identified to species levels.

A new species of stone oak, Lithocarpus tapanuliensis Harapan, W.H.Tan, Nurainas & Strijk from South Tapanuli, North Sumatra, Indonesia is described. We provide colour photographs, a distribution map and a new IUCN conservation status assessment for inclusion on the global Red List. The unique cupule morphology, particularly the shape, placement and distinctness of the cupule protuberances, are distinctive from other Lithocarpus species in the region. Ecological interactions (e.g. consumption and nesting) with Tapanuli orangutans were recorded in the field.

O pessoal envolvido no projeto:

The collecting method for the dried specimens was referred to published procedures of preparing herbarium materials (Bridson and Forman,1992). The plant materials were collected and pressed in the field then mounted on an A2 paper after the specimens were dried. Before installation into the herbarium cabinets, the specimens were put into plastic bags. Every sheet of specimens was labeled with the standard information for herbarium collections, including taxonomic identification, locality information, geo-references, collector information, and ecological data. For insect control, we freeze the specimens periodically in -20 degrees Celsius freezer for 72 hours. All of the specimens were stored in the herbarium cabinets. The storage rooms were equipped with temperature and humidity control. All of the specimens were in alphabetical orders based on the families, grouped in several groups of plants, such as dicots, monocots, ferns, and mosses.

Descrição dos passos do método:

1. The information on the specimen labels is our main data source. For data collection, we conducted in three steps: data capture, data cleaning, and data publication. In the data capture process, we collected all the information on the specimen’s label, and we input the information into Microsoft Excel spreadsheets using Darwin-Core format. In this process, we grouped the specimen information into three groups, consisting of data occurrence, taxon information, and event. We save the file in csv (comma-separated values) format. We included specimen photos and scanning data into the database incorporated in associateMedia field. All the images were stored in flickr-pro media, which then will link with the filed in the dataset. We conducted data cleaning to ensure consistency and standardized data input for the dataset. We used OpenRefine for batch error handling, Canadensys tools for coordinate conversion, and Splink for coordinate verification. To verify the taxonomic nomenclature, we used resolver, iPlant collaborative, ECAT, and POWO.