Main Experiment: Site B Herbivore damage 2015

Usage Rights

This data is Private.

Please contact Andreas Schuldt for usage permission

Dataset Abstract

Leaf damage by insect herbivores can severely affect the growth and fitness of plants and is considered to play an important role in the maintenance of high tree diversity in (sub)tropical forests. The trees of the main experimental plantations of BEF China are strongly affected by herbivory and understanding patterns in plant growth, trait expression and other ecosystem processes thus requires incorporation of potential herbivory effects and knowledge of how herbivory may change across the tree diversity gradient. This dataset quantifies leaf damage by insect herbivores for the trees of the main experimental study plots.

Dataset Design

The herbivory assessments were conducted at the end of the main growing season in September to quantify standing levels of leaf damage. In monocultures and two species-mixtures, all trees in the enlarged core area of 6 x 6 individuals (= 36 trees) were measured. In species-mixtures with 4 species, the core area to be measured comprised 9 x 9 individuals (= 81 trees) and in 8, 16 and 24 species-mixtures, the core area was 12 x 12 individuals (= 144 trees). On each large 4-mu plot, measurements were conducted in the core area of only one of the four 1-mu subplots (i.e. in the VIP subplots without additional shrubs planted). The degree of foliar damage by insects, defined as the combined removal of photosynthetic tissue by leaf-chewing, mining and galling (and, if visible, sucking) insects, was estimated using percentage classes of herbivore damage. On each tree, seven leaves on three randomly selected branches from different parts of the canopy (= 21 leaves per tree) were visually inspected. Herbivory was quantified as the overall leaf damage caused by chewing, mining, galling and (if visible) sucking insects per leaf. We used predefined percentage classes (estimated as 0%, 75%). Values provided here are the means of each category (i.e. 0%, 2.5%, 15%, 37.5%, 62.5%, 87.5%). As additional data, the total number of leaves was estimated and the main damage type was recorded.

Spatial Extent

Main Experiment, Site B

Temporal Extent

Fall 2015

Data columns available in the raw data part of this dataset

TAG
identifier for the tree; Datagroup description: Tree tags consist of 12 digits: The first 6 are the site plot name: _1_ site _2/3_ row, counting from North _4/5_ column, counting from west _6_ is the plot moved? Is it a quarter pot? The next 6 digits describe the tree individual _7/8_ type of individual (01 planned tree, 02 other tree than planted but in a given plot somewhere, 03 planned shrub, 04 other shrub within this plot) _9/10_ x grid position within plot, starting from southwest northwards _11/12 y grid position, starting from southwest eastwards
Data group: Tree or shrub position tag main experiment
Keywords: tree, location, object
Values
t203270010910
t203270010614
t203270010812
t203270010613
t203270010811
plot
Study plot
Data group: Plot name (letter, number code)
Keywords: location
Values
B_C27
B_F23
B_F24
B_D25
B_E25
leaves
Estimated number of leaves; Datagroup description: Plant leaf number
Data group: Plant leaf number
Keywords: leaf, size
Values
500
20
1000
100
leaf1
Percent leaf area damaged by herbivores; Datagroup description: Herbivore damage
Data group: Herbivore damage
Keywords: leaf, herbivory
Values
2.5
37.5
62.5
15
0
leaf2
Percent leaf area damaged by herbivores; Datagroup description: Herbivore damage
Data group: Herbivore damage
Keywords: leaf, herbivory
Values
62.5
37.5
0
2.5
15
leaf3
Percent leaf area damaged by herbivores; Datagroup description: Herbivore damage
Data group: Herbivore damage
Keywords: leaf, herbivory
Values
15
0
37.5
62.5
2.5
leaf4
Percent leaf area damaged by herbivores; Datagroup description: Herbivore damage
Data group: Herbivore damage
Keywords: leaf, herbivory
Values
15
37.5
0
11
2.5
leaf5
Percent leaf area damaged by herbivores; Datagroup description: Herbivore damage
Data group: Herbivore damage
Keywords: leaf, herbivory
Values
0
2.5
15
37.5
62.5
leaf6
Percent leaf area damaged by herbivores; Datagroup description: Herbivore damage
Data group: Herbivore damage
Keywords: leaf, herbivory
Values
2.5
37.5
15
0
62.5
leaf7
Percent leaf area damaged by herbivores; Datagroup description: Herbivore damage
Data group: Herbivore damage
Keywords: leaf, herbivory
Values
37.5
0
15
2.5
62.5
leaf8
Percent leaf area damaged by herbivores; Datagroup description: Herbivore damage
Data group: Herbivore damage
Keywords: leaf, herbivory
Values
15
37.5
0
2.5
31
leaf9
Percent leaf area damaged by herbivores; Datagroup description: Herbivore damage
Data group: Herbivore damage
Keywords: leaf, herbivory
Values
0
37.5
62.5
2.5
15
leaf10
Percent leaf area damaged by herbivores; Datagroup description: Herbivore damage
Data group: Herbivore damage
Keywords: leaf, herbivory
Values
15
2.5
37.5
33
0
leaf11
Percent leaf area damaged by herbivores; Datagroup description: Herbivore damage
Data group: Herbivore damage
Keywords: leaf, herbivory
Values
2.5
37.5
0
11
15
leaf12
Percent leaf area damaged by herbivores; Datagroup description: Herbivore damage
Data group: Herbivore damage
Keywords: leaf, herbivory
Values
62.5
37.5
15
0
2.5
leaf13
Percent leaf area damaged by herbivores; Datagroup description: Herbivore damage
Data group: Herbivore damage
Keywords: leaf, herbivory
Values
2.5
62.5
15
0
37.5
leaf14
Percent leaf area damaged by herbivores; Datagroup description: Herbivore damage
Data group: Herbivore damage
Keywords: leaf, herbivory
Values
15
62.5
0
2.5
37.5
leaf15
Percent leaf area damaged by herbivores; Datagroup description: Herbivore damage
Data group: Herbivore damage
Keywords: leaf, herbivory
Values
62.5
15
37.5
2.5
0
leaf16
Percent leaf area damaged by herbivores; Datagroup description: Herbivore damage
Data group: Herbivore damage
Keywords: leaf, herbivory
Values
62.5
37.5
2.5
0
15
leaf17
Percent leaf area damaged by herbivores; Datagroup description: Herbivore damage
Data group: Herbivore damage
Keywords: leaf, herbivory
Values
15
37.5
2.5
0
62.5
leaf18
Percent leaf area damaged by herbivores; Datagroup description: Herbivore damage
Data group: Herbivore damage
Keywords: leaf, herbivory
Values
37.5
0
2.5
62.5
15
leaf19
Percent leaf area damaged by herbivores; Datagroup description: Herbivore damage
Data group: Herbivore damage
Keywords: leaf, herbivory
Values
37.5
2.5
0
15
62.5
leaf20
Percent leaf area damaged by herbivores; Datagroup description: Herbivore damage
Data group: Herbivore damage
Keywords: leaf, herbivory
Values
0
2.5
37.5
62.5
15
leaf21
Percent leaf area damaged by herbivores; Datagroup description: Herbivore damage
Data group: Herbivore damage
Keywords: leaf, herbivory
Values
15
2.5
62.5
37.5
0
h1
Main type of herbivore
Data group: Herbivore functional group
Keywords: functional group
Values
C
M
S
L
h2
Main type of herbivore
Data group: Herbivore functional group
Keywords: functional group
Values
G
L
C
M
S
h3
Main type of herbivore
Data group: Herbivore functional group
Keywords: functional group
Values
C
S
M
L
date
Date of assessment
Data group: Date time information
Keywords: date
Values
2015-08-30
2015-08-27
2015-08-29
2015-08-28
2015-08-31