To collaborate with us and qualify for co-authorship in at least one article, your data need to fulfill the following requirements:

1. Minimum of 10 independent sites (not many sites within a stream or pond), only including first or second order streams, and/or groundwater-fed springs and/or ponds (lentic freshwater bodies with a maximum depth of 5 meters and areas smaller than 100ha).
2. Macroinvertebrates occurrence (presence/absence) or abundance (the latter will allow you to participate in more papers). Preferred at finer possible resolution (i.e., genus).
3. Site coordinates.
4. Hydrological information (e.g., typical range of hydropatterns, water sources).
5. Water chemistry data (if available).

Note that our analyses will focus mainly on broad-scale biodiversity patterns and, therefore, participation won't restrict your ability to analyze diversity within your own dataset. You can still of course use your data for independent publications.