Data from: Distribution models predict climate-related range alteration or extinction of eleven threatened tropical rainforest trees in the Western Ghats

This dataset contains information related to species occurence data and species distribution modeling (SDM) analysisr of eleven threatened tree species. Occurrences are compiled from extensive field surveys in the Anamalai Hills along with data from the Global Biodiversity Information Facility (GBIF.org) and earlier work done within the southern Western Ghats, India.

References:Page, N. V., & Shanker, K. (2020). Climatic stability drives latitudinal trends in range size and richness of woody plants in the Western Ghats, India. PLOS ONE, 15(7), e0235733. https://doi.org/10.1371/journal.pone.0235733

GBIF.org (2022) GBIF Occurrence Download, 2 August 2022. DOI:10.15468/dl.gnvuxj

AUTHOR #11. Name: A.P. Madhavan2. Work Address: Nature Conservation Foundation, 1311, 12th A Main, Vijayanagar 1st Stage, Mysuru 570017, Karnataka, India3. Email address: [e-mail]4. ORCID: https://orcid.org/0009-0009-2754-8256

AUTHOR #21. Name: Kshama Bhat2. Work Address: Nature Conservation Foundation, 1311, 12th A Main, Vijayanagar 1st Stage, Mysuru 570017, Karnataka, India3. Email address: [e-mail]4. ORCID: ORCID: https://orcid.org/0000-0002-6190-2687

AUTHOR #31. Name: Srinivasan Kasinathan2. Work Address: Nature Conservation Foundation, 1311, 12th A Main, Vijayanagar 1st Stage, Mysuru 570017, Karnataka, India3. Email address: [e-mail]4. ORCID: https://orcid.org/0000-0001-7323-6653

AUTHOR #41. Name: Divya Mudappa 2. Work Address: Nature Conservation Foundation, 1311, 12th A Main, Vijayanagar 1st Stage, Mysuru 570017, Karnataka, India3. Email address: [e-mail] 4. ORCID: https://orcid.org/0000-0001-9708-4826

AUTHOR #51. Name: Navendu Page2. Work Address: Wildlife Institute of India, Post Box No. 18, Chandrabani, Dehradun, Uttarakhand 248001, India3. Email address: [e-mail]4. ORCID: ORCID: https://orcid.org/0000-0002-9413-7571

AUTHOR #61. Name: T. R. Shankar Raman 2. Work Address: Nature Conservation Foundation, 1311, 12th A Main, Vijayanagar 1st Stage, Mysuru 570017, Karnataka, India3. Email address: [e-mail] 4. ORCID: https://orcid.org/0000-0002-1347-3953

Keywords: tropical rainforest, climate change, tree distributions, species distribution models, range shifts, Western Ghats

Geographic Coverage:1. Location/Study Area: Southern Western Ghats Montane Rain Forests, Southern Western Ghats Moist Deciduous Forests, India2. GPS coordinates: SWG (73.95° – 80.33° E, 8.06° – 13.11°N) 

Temporal coverageStarts: 2020-08-01Ends: 2024-03-28

Besides this README.txt file, the dataset includes three comma-delimited text files (csv); two R scripts, and 1 kml file of surveyed trails.

CSV files with the data in columns as explained below:

1) Focal_Tree_Dat.csv

Comp: Number identifierFT_ID: Unique tree no for each individualFocal_tree: Scientific name of speciesDate: Date of occurrence observationPlace: Area/locality descriptionTrail: Unique trail IDWaypoint: Waypoint number     Time: Time in hh:mm format    Location: Specific description of occurrence locality    Latitude: Latitude in decimal degrees N Longitude: Longitude in decimal degrees E Elevation: Elevation in metres    Slope: Cateory of slope ID_Notes: Notes on identificationPhenophase: Phenophase expression at the time of observation                             GBH: Girth at breast height in centimetres (comma separated list of numbers in case of multi-stemmed trees)     Tree_ht: Tree height in metresCanopy_ht: Maximimum height of the surrounding canopy in metresSubstrate: Soil substrate compositionInvasives: Name of invasive species (if present)    Stature: Vegetation strata position Relatively: Stature of focal individual relative to other surrounding individuals Deadwood: Description of deadwood on the tree    Damage: Description of damage on the bole Shape: Description of tree canopy shapeClosure: Canopy closure at focal tree    Seedlings: Number of conspecific seedlings present in 5 m radius of focal tree    Saplings: Number of conspecific saplings present in 5 m radius of focal treeTrees:    Number of conspecific trees present in 5 m radius of focal treeRemarks: Remarks 

2) Ffspecies.csv

Source: Source of occurrence    ID: State/location of occurrenceRegion: Biogeographic region of occurrence decimalLatitude: Latitude in decimal degrees NdecimalLongitude: Longitude in decimal degrees Especies: Scientific name of species

4) ft_surveys.csv

Date: Date of survey of sample trailProt_type: Category indicating whether protected area or fragment    Place: Area/locality descriptionRoute_description: Specific landmark description of trailTrail: Unique trail ID    Trail_distance: Tracked distance of trail in km    Corrected_trail_distance: Corrected distance of trail in kmTrack_filename_kml: File name of gps trackSample_collected: Name of species if sample collected    Observers: Name of observers     Remarks: Remarks

ANALYSES SCRIPTSflexsdm_script.RScript containing the analysis of all maxent distribution modeling and associated analysis

Franklinia_density.RmdScript of density and abundance related analysis