Data from: A new population record of Critically Endangered Dipterocarpus bourdillonii Brandis from the Anamalai Tiger Reserve, Tamil Nadu

Name: Data from: A new population record of Critically Endangered Dipterocarpus bourdillonii Brandis from the Anamalai Tiger Reserve, Tamil Nadu
Creator: Zenodo
Published: 2022-02-01T08:25:58+08:00

Zenodo2022-08-26 更新2026-05-26 收录

濒危植物种群调查

保护生物学

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资源简介：

This dataset is based on the following manuscript/publication: Page, N., S. Kasinathan, K. Bhat, G. Moorthi, T. Sundarraj, Divya Mudappa, and T. R. S. Raman (submitted MS). A new population record of Critically Endangered Dipterocarpus bourdillonii Brandis from the Anamalai Tiger Reserve, Tamil Nadu. Submitted manuscript. Please refer to the README.txt file included with the dataset for complete details and usage notes. Geographic Coverage: Location/Study Area: Valparai Plateau, Tamil Nadu, India; Anamalai Tiger Reserve, Tamil Nadu, India GPS coordinates: Valparai Plateau (0°15'- 10°22'N, 76°52'-76°59'E); Anamalai Tiger Reserve (10°12'-10°35'N, 76°49'-77°24'E) Temporal Coverage: Begins: 2020-10-01 (Year, Month, Day) Ends: 2021-04-30 (Year, Month, Day) Funding: Fondation Franklinia AMM Murugappa Chettiar Research Centre Rohini Nilekani Philanthropies Dataset: The dataset includes 9 files: 1 text file (README.txt), 5 data files in comma-delimited format (CSV), and 3 KML files of survey routes. Details of content of each CSV data file are provided below. The following files are included: README.txt: Usage notes and metadata related to the dataset 1_Surveys.csv: Details of trails covered where Dipterocarpus bourdillonii was recorded during the survey 2_Focal_tree_data.csv: Details of focal trees of Dipterocarpus bourdillonii 3_Tree_centred_PCQ.csv: Data from point-centred quarter (PCQ) plots sampled with focal trees at the centre 4_Plant_checklist.csv: Checklist of plants (mainly trees) recorded on survey trails 5_Seed-fruit.csv: Measurements of fruits and seeds of Dipterocarpus bourdillonii 2021-01-30_Manamboli_track.kml: Anali to Ayyankulam to Manamboli (Trail-2) 2021-03-26-Ayyankulam-track.kml: Ayyankulam survey (Trail-4) 2021-04-10-Ayyankulam Parai-trail2-track.kml: Anali Pudhukadu coffee boundary to Ayyankulam Parai (Trail-5) Details and data available in the columns in each of the above CSV files are explained below. 1_Surveys.csv Column: Description Date: Date on which the survey was done Place: Name of the place where the focal tree is located. e.g., Candura, Manamboli, Iyerpadi etc Route_description:Description of place or route covered Trail: Name of the tree survey trail Trail_distance: Distance covered on the trail in kilometres (km) Track_filename_kml: Name of the file with GPS track of survey trail/route, where available, in KML format Sample_collected: Samples of unidentified species collected to confirm the species identity Observers: Names of observers who took measurements and filled datasheet during survey Remarks: Notes and additional information 2_Focal_tree_data.csv Column: Description FT_ID: Unique numeric linking ID of each focal tree Species: Focal tree species Date: Date on which the survey was done Place: Name of the place where the focal tree is located. e.g., Candura, Manamboli, Iyerpadi etc Waypoint: Unique location waypoint number for the focal tree and GPS instrument used Time: Time when the focal tree's data was collected Location: Landmark where the focal tree is located Latitude: Latitude of the focal tree (decimal degrees N) Longitude: Longitude of the focal tree (decimal degrees E) Elevation: Elevation of the focal tree from sea-level in metres Slope: Slope at focal tree location assessed with Clinometer, categorised as Flat, Gentle, Moderate, or Steep ID_Notes: Any obvious signs with which to identify focal tree Phenophase: Phenophase of the focal tree viz. leaf flush, buds/flowers, fruits GBH: Girth of the focal tree in cm, at 1.3m from ground; measured from the higher side if tree is on slope. Tree_ht: Focal tree's height in m (height of observer added if measured using rangefinder) Canopy_ht: Height of canopy in m where the focal tree is located (height of observer added if measured using rangefinder) Substrate: Substrate where focal tree is standing viz. Earth, Rock, Streamside, Other Invasives: List of invasive plant species present within 5 m radius around the focal tree Stature: Stature of the focal tree relative to its surroundings (NOT of the species in general) categorised as Understorey, Mid, Canopy, Emergent Relatively: Relative height of focal tree in relation to other trees within 10 m radius categorised as Shorter than most, Taller than most, Same height as most Deadwood: Estimated percentage of deadwood present on the tree in 4 classes of <25%, 26-50%, 51-75%, 76-100% Damage: Observed damages such as Main trunk broken, Branches broken, Hollow at base, Gaping cavity, Infected, Dried leaves (as on a dead branch) Shape: Canopy shape of the focal tree (not species in general) categorised as Spreading, Oval, Fan, Column, Cone Closure: Canopy closure due to foliage visually estimated standing next to trunk of focal tree and looking up, categorised as 0% (only sky and leafless branches visible), 1-25%, 26-50%, 51-75%, 76-100% Seedlings: Count of conspecific seedlings (stems of girth at breast height <10 cm) around the focal tree in a 5 m radius Saplings: Count of conspecific saplings (stems of girth at breast height 10-30 cm) around the focal tree in a 5 m radius Trees: Count of conspecific trees (stems of girth at breast height >30 cm) around the focal tree in a 5 m radius Remarks: Notes and additional information 3_Tree_centred_PCQ.csv Column: Description FT_ID: Unique numeric linking ID of each focal tree Focal_tree: Scientific name of focal tree species at the centre of the point-centred quarter (PCQ) plot Species: Scientific name of tree species recorded in PCQ plot around focal tree GBH (cm): Girth of PCQ tree in cm, at 1.3 m from ground; measured from the higher side if tree is on a slope. Main stem only. Distance: Distance from focal tree, in m; measured from the approximate centre of bole to centre of bole and not bark to bark Multistem: NA if single-stemmed; if multi-stemmed, then GBH of additional stems given as notes. 4_Plant_checklist.csv Column: Description Date: Date on which the survey was done Place: Name of the place where the focal tree is located. e.g., Candura, Manamboli, Iyerpadi etc Trail: Name of the tree survey trail Checklist_species: Scientific name of tree species observed as present along trail and within 10 m on either side Remarks: Notes and additional information 5_Seed_Fruit.csv Column: Description Sample: Serial number of sample of single winged fruit measured Species: Scientific name of tree species No_Seeds: Unit number of seed measured Fresh_fruit_weight_g: Weight of each fruit measured on an Ohaus scale in grams Nut_length_cm: Length of nut along the longitudinal axis in cm Nut_width_1_cm: Width of nut in cm measured along axis perpendicular to nut length Nut_width_2_cm: Width of nut in cm measured along axis perpendicular to nut length and nut width 1 Wing1_length_cm: Length of longer wing (sepal) in cm Wing1_width_cm: Width of longer wing (sepal) in cm Wing2_length_cm: Length of shorter wing (sepal) in cm Wing2_width_cm: Width of shorter wing (sepal) in cm 7-9: KML files The following KML GPS track files are also included 2021-01-30_Manamboli_track.kml: Anali to Ayyankulam to Manamboli (Trail-2) 2021-03-26-Ayyankulam-track.kml: Ayyankulam survey (Trail-4) 2021-04-10-Ayyankulam Parai-trail2-track.kml: Anali Pudhukadu coffee boundary to Ayyankulam Parai (Trail-5)

提供机构：

Zenodo

创建时间：

2022-02-01