This site is thought to be used by five user types: Visitors, Registered Users, Writers Taxonomists and Admins.

Visitors can access all of the published info in this site but can not collaborate adding info. They  just enjoy. No registration is needed, and they'll have access to the same published information than registered users.

The other four user types (Registered Users, Visitor, Taxonomist and Admins) can log in the site. To be one of these, you need to be provided with a user name and a password. 

Registered Users have access to all the information, but improved with some blocks offering different functionalities as "New content" that lists all the unseen information added or modified in the last month. Once this information is viewed, dissapears from the block, so it's a practical tool to keep updated. They can comment any piece of info in the site.

Writers are the blocks on which this community is based on. They can add and categorize content, modify their own content or comment any kind of information

Taxonomists can perform all the tasks available to Registered Users, revise the content and also manage the taxa structure. They can:

• Modify any content, posted by them or by others
• Add new taxa
• Modify taxa tree
• Modify taxonomic information for the taxa, as synonims, parents, etc.
• Modify regional lists or taxa dsitribution

Admins have access to the whole site and are the only ones that can implement new tools for the web. This is a role obviously  more suited to programmers than to taxonomists