Drivers of variation in yellow crazy ant (Anoplolepis gracilipes) abundance and impacts on native fauna in an atoll ecosystem

The datasets include repeated counts of yellow crazy ants to measure count repeatability, count method effect, and temperature and time of the day effects on the number of ants counted, and a dataset with variables characterizing the habitat of plots where yellow crazy ants were counted, together with land crabs and brown noddy nests.

Details on the content of each dataset: HoopCardCorrelation : counts of yellow crazy ants using either the hoop or the card methods at the same place to compare the two methods HoopRepeatability: repetition of yellow crazy ant counts at the same place with the hoop method to measure the repeatability of the hoop count method OnetahiTemperatureEffect: repeated counts of yellow crazy ants at the same sites at different moments of the day and temperature to assess the effects of temperature and time of the day on the number of ants counted PlotHabitatYCACrabsBRNO: variables describing the content of the plots monitored to assess yellow crazy ant relative abundance, ants’ habitat preferences and numbers of land crabs and brown noddies within the plots PlotLevelHoopCardCorrelation: counts of yellow crazy ants using either the hoop or the card methods at the same place to compare the two methods at the plot level (rather than the individual count) TreeAntCount: Number of yellow crazy ants counted on tree trunks on different tree species together with biotic and abiotic predictors of ant numbers