Data from: Defoliation by pastoralists affects savanna tree seedling dynamics by
limiting the facilitative role of canopy cover, Bufford, Jennifer L., Gaoue, Orou G.
Data 1: Seedling and sapling size, growth and survival
(Data name: Khaya_Seedling_Demography.csv)
1. Description of data
These data show the basal diameter (cm), heights (m) measured on individual
seedlings and saplings of Khaya senegalensis (Meliaceae) yearly from 2004 to 2007.
From 2005-2007, we report if individual survived or not and the previously
measured basal diameter and height (if applicable). Individuals have unique
(aluminum) tag number within population. A total of 12 populations were
monitored for 4 years and these populations were selected randomly in two
ecological regions (wet or dry) and in each region populations were equally divided
between high and low foliage and bark harvesting intensities.
2. Variable descriptions
Year: year the data were collected
Subplot: Population number “p” subplot number
pop: population number
region: ecological region, either wet (Sudano-Guinean) or dry (Sudanian)
harv: harvest intensity, either Harv (high harvest intensity populations) or NoHarv
(low harvest intensity populations)
plot: number of 10 x 10m plot within each population (10 plots per population)
Tag04: individual tag number as labeled in 2004
Tag06: individual tag number as labeled in 2006
Tag07: individual tag number as labeled in 2007
YearNew: first year that the seedling was recorded
PrevDB: basal diameter (cm) of the seedling in the preceding year (if applicable)
PrevHt: height (m) of the seedling in the preceding year (if applicable)
Pres: seedling was present (1) or absent (0) in that year
Surv: survival of the seedling from the previous year
DB: basal diameter (cm)
Ht: height (m)
dDB: change in basal diameter (cm) from the previous year (if applicable)
dHt: change in height (m) from the previous year (if applicable)
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