[tdwg-tapir] How to find list of Tapir providers

Hi, Is there any list or data portal of Tapir providers? I mean, for instance the gbif data portal (www.*gbif*.org<http://www.gbif.org/>) uses a different protocol; the providers on the gbif portal wouldn't know how to deal with a Tapir request, or am I wrong? Same applies to the OBIS network (www.i*obis*.org <http://www.iobis.org/>). Thanks.