Biology Department

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Spicebush volatile compounds (“spices”) data:

Compound

Test Statistic

P-value

Effect

Direction

C8

17.1374

0.0003

Light

higher in shade

n = 16 sun, 16 shade

C12

4.5572

0.0424

Light

higher in shade

n = 16 sun, 16 shade

 

Compound

Test Statistic

P-value

Effect

Direction

Spice7

12.876

0.0016

Damage

higher with herbivory and clipping

n = 12 ND, 8 clipped, and 12 herbivory

 

Compound

Test Statistic

P-value

Effect

Treatment

Changes

% Increase

% No Change

% Decrease

C7

9.715

0.0018

Light

sun

0

0

38

n = 16

shade

0

100

0

n = 16

C8

9.235

0.0099

Light

sun

0

6

94

n = 16

shade

19

31

50

n = 16

Spice4

6.921

0.0314

Light

sun

25

12.5

63.5

n = 16

shade

0

31

69

n = 16

Spice7

16.707

0.0002

Damage

ND

0

100

0

n = 12

clipped

75

25

0

n = 8

herbivory

50

50

0

n = 12

Spice8

14.089

0.0070

Damage

ND

0

33

66

n = 12

clipped

63

0

37

n = 8

herbivory

25

17

58

n = 12

C10

6.193

0.0452

Damage

ND

25

0

75

n = 12

clipped

0

0

100

n = 8

herbivory

42

0

58

n = 12

C14

11.233

0.0241

Damage

ND

17

58

25

n = 12

clipped

0

75

25

n = 8

herbivory

58

25

17

n = 12

Rate of Parasitism data:

Species

Sun % Parasitized

Shade % Parasitized

Total % Parasitized (regardless of light environment origin)

E. hortaria

2.2%

6.5%

9.2%

M. canadaria

6.3%

13.2%

11.1%

Sticky Card data:

Parasitoid Family

Sun

Shade

Total

Braconidae

6

3

9

Chalcididae

126

169

295

Ichneumonidae

7

8

15

 

Return to Beth's Project - Tri-Trophic Interactions Between Plants and Insects (Spicebush, Epimecis, and Wasps)

 

This material is based upon work supported by the National Science Foundation under Grant No. 0442049.

Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.