Ecological Archives E096-143-A6

Hannah M. Griffiths, Julio Louzada, Richard D. Bardgett, Wallace Beiroz, Filipe Franҫa, Daniel Tregidgo, and Jos Barlow. 2015. Biodiversity and environmental context predict dung beetle-mediated seed dispersal in a tropical forest field experiment. Ecology 96:16071619. http://dx.doi.org/10.1890/14-1211.1

Appendix F. The effect of community manipulation and site on dung beetle community attributes.

Table F1. Outputs from generalized least squares models (gls) to assess the effect of community manipulation (opening time: 12 or 24 hours, and opening period: day or night, that plots were accessible for beetle colonization) and site (Clay, Sand 1, Sand 2) on dung beetle community attributes. Significance was assessed by Chi-squared likelihood ratio tests (LRT) using single term deletions.

 

Opening period

 

Opening time

 

Site

 

Site × opening period

 

Site × opening time

Index

LRT

df

P

 

LRT

df

P

 

LRT

df

P

 

LRT

df`

P

 

LRT

df`

P

Species richness

15.88

1

<0.0001

 

18.51

1

<0.0001

 

31.14

2

<0.0001

 

2.34

2

0.3110

 

3.65

2

0.1615

Functional richness

11.65

1

<0.0001

 

13.36

1

<0.0001

 

17.55

2

<0.0001

 

12.52

2

0.0019

 

0.99

2

0.6101

Functional evenness

0.26

1

0.6136

 

0.95

1

0.3305

 

23.82

2

<0.0001

 

2.91

2

0.2329

 

4.16

2

0.1248

Functional divergence

5.66

1

0.0173

 

0.34

1

0.5587

 

1.35

2

0.5086

 

0.91

2

0.6355

 

5.11

2

0.0776

Functional dispersion

14.22

1

<0.0001

 

3.27

1

0.0707

 

8.02

2

0.0181

 

3.58

2

0.1670

 

6.10

2

0.0474

Biomass

0.21

1

0.6457

 

4.66

1

0.0309

 

42.18

 

<0.0001

 

0.37

2

0.8304

 

0.79

2

0.6721

 

FigF1

Fig. F1. The effect of opening period (day: black bars, or night: gray bars) and site Clay, Sand 1 and Sand 2) on dung beetle community attributes.


 

FigF2

Fig. F2. The effect of opening time (12 hours: black bars, or 24 hours: gray bars) and site (Clay, Sand 1 and Sand 2) on dung beetle community attributes.


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