What are some really good books on Ecology?

[Quintus Ennius]

I've just started taking an interest in Ecology and I would just like to know what are some books for someone who is just being introduced to it. I'm particularly intrigued by Behavioral Ecology, if that helps at all.

[JuniperWoolf]

Just buy an ecology textbook from your nearest university. Actually, find out what they're using to teach their students (it'll be something like Ecology - 11th Edition), then find an earlier edition on Amazon for eighty dollars cheaper with almost the exact same information (maybe an interview cut out here, a chart added there, chapters jumbled around a bit - just so they can keep charging people $120 per book and no one can buy a copy for cheap from previous students).