Conceptual design of the model builds.

In the first column, the results of signaler effort are described and whether the displayer effort results in some structure (morphological or an external structure like a nest) that persists over time. The second column describes whether the receivers can observe the entire effort of a male in a time step or can only observe the effort in the current time step. The third column specifies whether an external item, such as a twig, needs to be found before display. In the final column putative examples of these scenarios are provided. Question marks represent examples where the author could not locate unequivocal examples of this scenario. References and scientific names printed below the table.1Ploceus phillipinus [30], 2Ptilonorhynchus violaceus [12], 3Troglodytes troglodytes [49], 4Oenanthe leucura [14], 5Lamprologus callipterus, 6Bittacus apicalis [70], 7Centrocerus urophasianus [71], 8Ficedula hypoleuca [21], 9Pavo cristatus [72], 10Manacus vitellinus [73], 11Labroides dimidiatus [74].