Ecological Archives E096-052-A2
Alejandro Gustavo Farji-Brener, Federico Chinchilla, María Natalia Umaña, María Elena Ocasio-Torres, Alexander Chauta-Mellizo, Diana Acosta-Rojas, Sofía Marinaro, Mónica de Torres Curth, and Sabrina Amador-Vargas. 2015. Branching angles reflect a trade-off between reducing trail maintenance costs or travel distances in leaf-cutting ants. Ecology 96:510–517. http://dx.doi.org/10.1890/14-0220.1
Appendix B. ANOVA tables for the comparison of branching angles between colonies of Atta cephalotes and Atta colombica in different habitats (forest vs. open areas), considering (i) trails (n = 79, 1–3 per colony) or (ii) colonies (n = 40, one trail per colony) as replicates.
i)
SS |
df | MS | F | P | |
Habitat |
3977 |
1 | 3977 | 21.4 | <0.001 |
Species |
172 |
1 | 172 | 0.42 | 0.34 |
Habitat × Species |
132 |
1 | 132 | 0.12 | 0.40 |
Error |
13719 |
75 | 183 |
Mean (± SE) branching angle of forest colonies: 43°± 4°
Mean (± SE) branching angle of open-area colonies: 65°± 2°
ii)
|
SS |
df | MS | F | P |
Habitat |
4172 | 1 | 4172 | 21.4 | <0.001 |
Species |
82 | 1 | 82 | 0.42 | 0.52 |
Habitat × Species |
23 | 1 | 23 | 0.12 | 0.73 |
Error |
7022 | 36 | 195 |
Mean (± SE) branching angle of forest colonies: 42 ± 6°
Mean (± SE) branching angle of open-are colonies: 71 ± 5°