Table 3.
The total traits considered in the analyses with an indication of their expected functional meaning and the number of Gower distance groups113.
| Trait | Trait type | Expected functional meaning | Bibliography | Gower group |
|---|---|---|---|---|
| Body size | Biological [Continuous] | Body size is tightly linked to temperature. Body size of assemblages of odonates is mainly driven by temperature. | 114,115 | Group 1 |
| Abdomen length | Biological [Continuous] | As for body size. | Group 1 | |
| Wings length | Biological [Continuous] | Proxy for dispersal. | 116,117 | Group 1 |
| Habitat | Ecological [Categorical] | Freshwater habitats (lentic/lotic) are among the most threatened ecosystems by climate change. | 118 | Group 2 |
| Flight season time | Ecological [Continuous] | Indirect measure of dispersal potential. | 21 | Group 3 |
| Abdomen pigmentation | Biological [Continuous] | Pigmentation and colour patterns are directly related with thermoregulatory mechanisms. For example, melanism is linked to greater absorption of solar radiation heat in cooler regions. | 114,115,119–121 | Group 4 |