Ecological Archives E095-195-A5

Adam S. Hadley, Sarah J. K. Frey, W. Douglas Robinson, W. John Kress, Matthew G. Betts. 2014. Tropical forest fragmentation limits pollination of a keystone understory herb. Ecology 95:2202–2212. http://dx.doi.org/10.1890/13-0929.1

Appendix E. Pre-selection of nuisance and landscape composition models for pollination of H. tortuosa.

Table E. Pre-selection of local site and landscape composition models for the presence of pollen tubes, presence of mature fruit, fruit set and seed set of H. tortuosa. The number of parameters (K), Akaike's Information Criterion (AICc), weights (wi), and evidence ratios (ER) based on the top ranked model are shown. Best-supported models are shown in bold.

(a) Nuisance

 

Presence of pollen tubes

 

Presence of mature fruit

 

Proportion mature fruit

 

Proportion of possible seeds

Model

K

AICc

ΔAICc

wi

ER

 

K

AICc

ΔAICc

wi

ER

 

K

AICc

ΔAICc

wi

ER

 

K

AICc

ΔAICc

wi

ER

null

2

282.37

0.55

0.20

1.32

2

231.92

0.92

0.17

1.58

3

877.75

5.86

0.03

18.70

3

-15.00

0.73

0.16

1.44

height

3

284.30

2.48

0.07

3.45

3

233.45

2.44

0.08

3.39

4

871.89

0.00

0.63

1.00

4

-14.55

1.19

0.13

1.81

bracts

NA

NA

NA

NA

NA

3

233.96

2.96

0.06

4.39

4

873.75

1.86

0.25

2.53

4

-13.54

2.19

0.08

2.97

edge

3

284.42

2.59

0.07

3.66

3

233.79

2.79

0.07

4.04

4

879.05

7.16

0.02

35.88

4

-14.56

1.17

0.13

1.80

stream

3

283.14

1.32

0.13

1.93

3

232.49

1.49

0.13

2.11

4

879.68

7.79

0.01

49.13

4

-13.05

2.69

0.06

3.87

elevation

3

283.76

1.94

0.10

2.64

3

233.96

2.96

0.06

4.40

4

879.63

7.74

0.01

47.90

4

-13.39

2.35

0.07

3.22

heto

3

284.14

2.32

0.08

3.19

3

233.93

2.93

0.06

4.32

4

879.51

7.62

0.01

45.23

4

-12.93

2.80

0.06

4.06

flowers

3

281.82

0.00

0.26

1.00

3

231.00

0.00

0.27

1.00

4

879.80

7.90

0.01

52.05

4

-13.69

2.05

0.08

2.80

richness

3

284.07

2.25

0.08

3.08

3

232.70

1.70

0.11

2.34

4

879.73

7.84

0.01

50.35

4

-15.73

0.00

0.23

1.00

global

9

290.84

9.02

0.00

90.84

 

10

241.09

10.09

0.00

155.01

 

11

882.85

10.96

0.00

240.14

 

11

-4.20

11.54

0.00

320.63

(b) Composition - 'amount'

 

Presence of pollen tubes

 

Presence of mature fruit

 

Proportion mature fruit

 

Proportion of possible seeds

Model

K

AICc

ΔAICc

wi

ER

 

K

AICc

ΔAICc

wi

ER

 

K

AICc

ΔAICc

wi

ER

 

K

AICc

ΔAICc

wi

ER

null

2

282.37

0.00

0.15

1.00

2

231.92

0.00

0.21

1.00

3

877.75

2.00

0.13

2.71

3

-15.00

0.00

0.19

1.00

pf100

3

284.09

1.72

0.06

2.37

3

232.03

0.11

0.20

1.05

4

875.75

0.00

0.35

1.00

4

-13.18

1.82

0.08

2.49

pf250

3

284.40

2.03

0.05

2.76

3

233.57

1.65

0.09

2.28

4

877.13

1.38

0.18

2.00

4

-14.62

0.38

0.16

1.21

pf500

3

283.76

1.38

0.08

2.00

3

233.54

1.62

0.09

2.25

4

879.31

3.56

0.06

5.94

4

-14.97

0.03

0.19

1.01

pf1000

3

282.81

0.44

0.12

1.25

3

233.79

1.86

0.08

2.54

4

878.99

3.24

0.07

5.04

4

-13.37

1.63

0.09

2.26

pf2000

3

282.47

0.10

0.14

1.05

3

233.82

1.90

0.08

2.58

4

879.77

4.02

0.05

7.47

4

-12.94

2.06

0.07

2.80

ht500

3

282.42

0.05

0.15

1.02

3

233.96

2.04

0.08

2.77

4

879.81

4.06

0.05

7.62

4

-13.01

1.99

0.07

2.70

ht1000

3

282.44

0.06

0.15

1.03

3

233.82

1.90

0.08

2.58

4

879.77

4.01

0.05

7.44

4

-12.93

2.06

0.07

2.81

ht2000

3

283.27

0.89

0.10

1.56

 

3

233.96

2.04

0.08

2.77

 

4

878.96

3.21

0.07

4.97

 

4

-13.45

1.55

0.09

2.17

(c) Composition- 'matrix'

 

Presence of pollen tubes

 

Presence of mature fruit

 

Proportion mature fruit

 

Proportion of possible seeds

Model

K

AICc

ΔAICc

wi

ER

 

K

AICc

ΔAICc

wi

ER

 

K

AICc

ΔAICc

wi

ER

 

K

AICc

ΔAICc

wi

ER

null

2

282.37

0.70

0.31

1.42

2.00

231.92

0.00

0.37

1.00

3.00

877.75

0.00

0.58

1.00

3.00

-15.00

0.00

0.46

1.00

mtrx500

3

282.92

1.25

0.24

1.87

3.00

232.64

0.72

0.26

1.43

4.00

879.80

2.05

0.21

2.79

4.00

-13.88

1.12

0.26

1.75

mtrx1000

3

281.67

0.00

0.45

1.00

 

3.00

231.93

0.01

0.37

1.01

 

4.00

879.81

2.06

0.21

2.80

 

4.00

-13.96

1.04

0.27

1.68

Notes: Nuisance variables are - height (plant height), bracts (number of bracts on the inflorescence), edge (distance to the nearest edge), stream (distance to the nearest stream), elevation (elevation at the plant), heto (number of flowering H. tortuosa plants within 20m), flowers (total number of ornithophilous flowers), richness (ornithophilous flower richness), global (all local variables). Composition 'amount' variables are – pf100 (proportion of forest within 100 m), pf250 (proportion of forest within 250 m), pf500 (proportion of forest within 500 m), pf1000 (proportion of forest within 1000 m), pf2000 (proportion of forest within 2000 m), ht500 (amount of heliconia habitat within 500 m), ht1000 (amount of heliconia habitat within 1000 m), ht2000 (amount of heliconia habitat within 2000 m). Composition 'matrix' variables are - mtrx500 (ornithophilous flowers in matrix within 500 m), mtrx1000 (ornithophilous flowers in matrix within 1000 m)


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