The Log In link is on the top of the page.
This takes you to the log in page for Customer Service.
If you are a member/subscribe, you should use your subscriber information for the top log in where it asks for username and password.
You don't need a subscription to set up an account to access the tools. Type in an email address into the bottom form. It will let you know if you already have an account—if for instance you are already getting the email with the Table of Contents each month. It asks for a minimal amount of basic information. Once in, it tells you whether you have a subscription or not. The features that you can use are at the bottom of the menu on the left.
To set up a new citation alert, you click on the link at the top of the article you are reading.
The alert consists of an email telling you whenever a new publication has cited the article—as long as the publication is submitting its literature cited list to CrossRef. Unfortunately, there seem to be quite a few publishers who don't do that so this feature misses cites (as does the Cited By tab for articles) but it's an easy way to keep an eye on some of the publications on that topic. Here's what the email citation alert email looks like:
Saved Searches allows you to keep a focused eye on topics of interest in the journal. After a specific search (filtered by keywords, authors, time frame), save the search by clicking on the button.
It will ask you whether you want to get an alert when new items meeting the search criteria appear:
From the My Account page for Saved Searches, you can change the alert setting frequency or run the whole search over again and get all the available results.
Trish of the Naturalist