DOI: 10.5281/zenodo.2537074
title: Spatial aggregation and seedling survival of the Borneo Ironwood (Eusideroxylon zwageri)

description: <b>Description: </b>This dataset was collected by the Imperial College London MRes Tropical Forest Ecology Field Course as a group project in Maliau Basin. Fieldwork was carried out on 29 Jan - 1 Feb 2018. A 4-ha plot was set up to assess the spatial aggregation of the Borneo Ironwood (Eusideroxylon zwageri, local name Belian) and seedling survival. All trees with DBH &gt;1cm were mapped with XY coordinate rounded to nearest 1m. DBH class was rounded down to the nearest 10cm, e.g. size 10, 20, 30 etc. Size class 1 refers to trees with DBH between 1 and 10cm. A swamp area on the north and northeast of ~1-ha was not assessible hence data defficient, but as Belian is not known to growth in water logged conditions the species was presumed to be absent in this swamp area. Belian seedlings were surveyed in 540 5x5m subplots in the centre zone of the 4-ha plot. In each seedling plot, healthy and damaged (primarily herbivory damage by mammals, defined as damaged when top shoot, i.e.  apical meristem, was missing). Other variables recorded in seedling plots include slope angle and ground vegetation cover.<b>Project: </b>This dataset was collected as part of the following SAFE research project: <b>MRes Tropical Forest Ecology Field Course</b><b>Funding: </b>These data were collected as part of research funded by: Natural Environment Research Council (Directed grant, NE/P00363X/1, https://gtr.ukri.org/projects?ref=NE%2FP00363X%2F1)Imperial College London (MRes Tropical Forest Ecology field course program)This dataset is released under the CC-BY 4.0 licence, requiring that you cite the dataset in any outputs, but has the additional condition that you acknowledge the contribution of these funders in any outputs.<b>XML metadata: </b>GEMINI compliant metadata for this dataset is available here<b>Files: </b>This consists of 1 file: Belian_data_for_SAFE_upload_LQ_10Jan_2019.xlsx<b>Belian_data_for_SAFE_upload_LQ_10Jan_2019.xlsx</b>This file contains dataset metadata and 2 data tables:<b>Belian tree coordinates</b> (described in worksheet Belian trees)Description: All trees with DBH &gt;1cm were mapped in a 4-ha plot with XY coordinate rounded to nearest 1m. Each row corresponds to a Belian tree. DBH class was rounded down to the nearest 10cm, e.g. size 10, 20, 30 etc. Size class 1 refers to trees with DBH between 1 and 10cm. A swamp area on the north and northeast of ~1-ha was not assessible hence data defficient, but as Belian is not known to growth in water logged conditions the species was presumed to be absent in this swamp area.Number of fields: 9Number of data rows: 91Fields: <b>X10</b>: X coordinate of the southwest corner of 10x10 m subplot (Field type: Numeric)<b>Y10</b>: Y coordinate of the southwest corner of 10x10 m subplot (Field type: Numeric)<b>X</b>: X coordinate within the 10x10m subplot (local X) (Field type: Numeric)<b>Y</b>: Y coordinate within the 10x10m subplot (local Y) (Field type: Numeric)<b>class</b>: DBH rounded down to the nearest 10cm, e.g. size class 10, 20, 30 etc. Size class 1 refers to trees with DBH between 1 and 10cm (Field type: Numeric Trait)<b>remark</b>: remark on whether tree is a resprout from the base of an older tree and other tree condition information  (Field type: Comments)<b>collected_by</b>: members of field teams: 4 groups of 4 students each (Field type: Comments)<b>X_coord</b>: X coordinate within the 4-ha plot (global X) (Field type: Numeric)<b>Y_coord</b>: Y coordinate within the 4-ha plot (global Y) (Field type: Numeric)<b>Belian seedling plots</b> (described in worksheet Belian seedlings)Description: Belian seedlings were surveyed in 540 5x5m subplots in the centre zone of the 4-ha plot. Each row corresponds to a seedling plot. In each seedling plot, healthy and damaged (primarily herbivory damage by mammals, defined as damaged when top shoot, i.e.  apical meristem, was missing). Other variables recorded in seedling plots include slope angle and ground vegetation cover.Number of fields: 10Number of data rows: 540Fields: <b>X10</b>: X coordinate of the southwest corner of 10x10 m subplot (Field type: Numeric)<b>Y10</b>: Y coordinate of the southwest corner of 10x10 m subplot (Field type: Numeric)<b>healthy</b>: count of healthy Belian seedlings within 5x5m plot. "healthy" is defined as opposed to "damaged" (see next data column) (Field type: Abundance)<b>damaged</b>: count of damaged Belian seedlings within 5x5m plot. "damaged" is defined as when a seedling suffered severe herbivory damage (including dead seedlings) with the apical meristem entirely missing (eaten by mammals)  (Field type: Abundance)<b>slope</b>: mean slope angle for each seedling subplot, a measure of habitat topography (Field type: Numeric)<b>veg_cover</b>: ground vegetation cover for each subplot, a measure of habitat and interspecific competition (Field type: Ordered Categorical)<b>cache</b>: when seedlings occur in dense clusters especially under fallen tree or in buttress crevices, this may indicate they were deposited there by rodents, i.e. caching (Field type: Comments)<b>remark</b>: remark on habitat. seedling plots on footpath or water should be excluded from data analysis (Field type: Comments)<b>collected_by</b>: members of field teams: 4 groups of 4 students each (Field type: Comments)<b>total</b>: total number of Belian seedlings (Field type: Abundance)<b>Date range: </b>2018-01-29 to 2018-02-01<b>Latitudinal extent: </b>4.7383 to 4.7383<b>Longitudinal extent: </b>116.9713 to 116.9713<b>Taxonomic coverage: </b><br> All taxon names are validated against the GBIF backbone taxonomy. If a dataset uses a synonym, the accepted usage is shown followed by the dataset usage in brackets. Taxa that cannot be validated, including new species and other unknown taxa, morphospecies, functional groups and taxonomic levels not used in the GBIF backbone are shown in square brackets.Plantae<br> - Tracheophyta<br> -  - Magnoliopsida<br> -  -  - Laurales<br> -  -  -  - Lauraceae<br> -  -  -  -  - <i>Eusideroxylon</i><br> -  -  -  -  -  - <i>Eusideroxylon zwageri</i><br>