How do I use scipy.stats.mannwhitneyu for biodiversity index?

I need to do a MWU-test comparing biodiversity indices (n species / n individuals) from mammals from urban and rural areas. These are 2 1x10 tables.

If I read http://ift.tt/2fCWQzg I don't really understand it. What do I need to input in my case and what does the output tell me?