Admins can add locations

Let's admins create locations (e.g. Brooklyn, NY) from the dashboard.  Users can then search for locations.  Entries will be associated with locations, and users will be able to see what plants or animals users have seen in particular locations.
This isn't exactly what I meant. I'm thinking more like.
```ruby
location = Location.new
@dashboard = Dashboard.new(location)
```

That said, your dashboard doesn't seem too complicated. I would probably ignore the Dashboard class for now.