| (1) Begin |
| (2) Initialize the population Pop with NP habitats randomly |
| (3) Evaluate the fitness (HSI) for each Habitat in Pop |
| (4) While the halting criteria are not satisfied do |
| (5) Sort all the habitats from best to worst in line with their fitness values |
| (6) Map the fitness to the number of species count S for each habitat |
| (7) Calculate the immigration rate and emigration rate according to sinusoidal migration model |
| (8) For i = 1 to NP /*migration stage*/ |
| (9) Select according to immigration rate using sinusoidal migration model |
| (10) If is selected |
| (11) For j = 1 to NP |
| (12) Generate fourmutually different integers in |
| (13) Select according to emigration rate |
| (14) If rand(0,1) < |
| (15) |
| (16) Else |
| (17) |
| (18) EndIf |
| (19) EndFor |
| (20) EndIf |
| (21) EndFor /*end ofmigration stage*/ |
| (22) For i = 1 to NP /*mutation stage*/ |
| (23) Compute the mutation probability |
| (24) Select variable with probability |
| (25) If is selected |
| (26) |
| (27) Endif |
| (28) EndFor /*end ofmutation stage*/ |
| (29) For i = 1 to NP/2 /*local search stage*/ |
| (30) If rand(0,1) < |
| (31) Select a habitat randomly |
| (32) * |
| (33) EndIf |
| (34) EndFor /*end oflocal search stage*/ |
| (35) Make sure each habitat legal based on boundary constraints |
| (36) Use new generated habitat to replace duplicate |
| (37) Evaluate the fitness (HSI) for trial habitat in the new population Pop |
| (38) For i = 1 to NP /*selection stage*/ |
| (39) If |
| (40) |
| (41) EndIf |
| (42) EndFor /*end ofselection stage*/ |
| (43) EndWhile |
| (44) End |
