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Table 1 Comparison of four evolutionary model fits, random-walk variances (σ2) and primary trait optima (in parentheses) for the three morphological variables: head shape (PChs), locomotory morphology (pPClm) and relative antenna length

From: Phenotypic disparity in Iberian short-horned grasshoppers (Acrididae): the role of ecology and phylogeny

  Model AICc ΔAICc σ2 plantplant) σ2 groundground)
(a) All taxa
 PChs BM −185.695 0.99 0.105 0.105
EB −183.508 3.36 0.105 0.105
OU1 −183.927 2.94 0.129 0.129
OUVM −186.869 0.00 0.042 (0.120) 0.198 (−0.013)
pPClm BM 3.246 6.31 1.574 1.574
EB 5.431 8.50 1.574 1.574
OU1 1.734 4.80 3.117 3.117
OUVM −3.066 0.00 −0.239 (−0.093) 0.060 (0.047)
 Antenna length BM −91.674 4.15 0.405 0.405
EB −89.489 6.33 0.405 0.405
OU1 −95.824 0.00 0.988 0.988
OUVM −92.889 2.93 0.928 (0.7012) 0.928 (0.701)
(b) Gomphocerinae subset
 PChs BM −126.699 0.00 0.141 0.141
EB −124.991 1.71 0.140 0.140
OU1 −125.466 1.23 0.120 0.120
OUVM −120.905 5.79 0.142 (0.040) 0.112 (0.107)
pPClm BM −5.034 5.57 2.234 2.234
EB −2.712 7.89 2.234 2.234
OU1 −10.510 0.10 1.162 1.162
OUVM −10.607 0.00 0.663 (−0.335) 1.073 (0.030)
 Antenna length BM −66.264 14.25 0.555 0.555
EB −63.949 16.56 0.555 0.555
OU1 −80.510 0.00 1.190 1.190
OUVM −69.568 10.94 0.282 (0.841) 0.282 (0.744)
  1. ΔAICc is the model’s mean AICc minus the minimum AICc between models. Bolded rows represent the best fit model as indicated by the lowest AICc score. Estimated phenotypic optima (θ) for ground and plant-perching regimes are shown where applicable. Analyses were performed for (a) all species and (b) only including the Gomphocerinae subset