diff --git a/src/nature/ecologicaldata.jl b/src/nature/ecologicaldata.jl
index 03cad202e790cbb0a79bb73a2ec240ccb924a418..b3e02b496c6be282abe1c0e761633746ca9aac96 100644
--- a/src/nature/ecologicaldata.jl
+++ b/src/nature/ecologicaldata.jl
@@ -9,10 +9,10 @@
 Create output files for each data group collected by the nature model.
 """
 function initecologicaldata(model::AgentBasedModel)
-    # newdataoutput!(model, "populations", ["Date", "Species", "Abundance"],
-    #                savepopulationdata, @param(nature.popoutfreq), populationtrends)
-    # newdataoutput!(model, "individuals", ["Date","ID","X","Y","Species","Sex","Age"],
-    #                saveindividualdata, @param(nature.indoutfreq), visualisemap)
+    newdataoutput!(model, "populations", ["Date", "Species", "Abundance"],
+                   savepopulationdata, @param(nature.popoutfreq), nothing)
+    newdataoutput!(model, "individuals", ["Date","ID","X","Y","Species","Sex","Age"],
+                   saveindividualdata, @param(nature.indoutfreq), nothing)
 end
 
 """