There is a key set of measurements, or essential variables, that are needed to monitor biological invasions. Some data must be provided by countries themselves, whereas a wealth of additional supporting information is available from elsewhere to support national and global monitoring efforts. Together these essential variables provide the minimum information set needed to assess and track the status of biological invasion [1, 2].
The essential variables for invasion monitoring fit within the broader framework of Essential Biodiversity Variables (EBVs). EBVs are the “measurements required for the study, reporting, and management of biodiversity change [3]”. The EBV framework underpins the development of a global system of harmonised observations on biodiversity change. Similarly, essential variables for invasion monitoring underpin the development of a global system of harmonised observations to assess and track the status of biological invasion [1-5 ].
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A vision for global monitoring of biological invasions.
Latombe, G., Pyšek, P., Jeschke, J.M., Blackburn, T.M., Bacher, S., Capinha, C., Costello, M.J., Fernández, M., Gregory, R.D., Hobern, D., Hui, C., Jetz, W., Kumschick, S., McGrannachan, C., Pergl, J., Roy, H.E., Scalera, R., Squires, Z.E., Wilson, J.R.U., Winter, M., Genovesi, P., McGeoch, M.A. (2016). A vision for global monitoring of biological invasions, Biological Conservation. doi:10.1016/j.biocon.2016.06.013.
The three essential variables for invasion monitoring are:
There are a number of other useful variables that will further enhance the monitoring of biological invasions: Other variables
Referenced material and links