Table 1 Pollinator and color morph effects on fruit size and number of seeds produced by bumblebee- and hummingbird-pollinated flowers that set fruit of Penstemon blue and fuchsia morphs.

From: Pollinator divergence and pollination isolation between hybrids with different floral color and morphology in two sympatric Penstemon species

Variable

Factor

SS

df

F

P

Fruit length

Morph

0.435

1

0.441

0.505

 

Pollinator

33.199

1

33.658

<0.0001

 

Morph × pollinator

19.026

1

19.289

0.00003

 

Residual

77.921

79

  

Fruit width

Morph

0.002

1

0.0059

0.939

 

Pollinator

0.488

1

1.361

0.247

 

Morph × pollinator

3.245

1

9.037

0.0035

 

Residual

28.369

79

  

Fruit weight

Morph

0.021

1

27.781

<0.0001

 

Pollinator

0.036

1

46.202

<0.0001

 

Morph × pollinator

0.018

1

22.936

<0.0001

 

Residual

0.061

79

  

Number of seeds

Morph

7718

1

10.888

0.0015

 

Pollinator

4801

1

6.773

0.011

 

Morph × pollinator

12457

1

17.574

<0.0001

 

Residual

55290

78

  
  1. Effects were modelled using a generalized linear model (GLM) with Gaussian error distribution and logarithmic link function, and flower color morph (blue or fuchsia) and pollinator type (bumblebee or hummingbird) treated as fixed effects and measures as continuous response variables.
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