MRE Symonds, CN Johnson (2006) Determinants of local abundance in a major radiation of Australian passerines (Aves: Meliphagoidea). Journal of Biogeography 33: 794-802.

What’s it about?

Using data from the Australian Bird Count, we looked at whether aspects of ecology and life-history (latitude, body mass, diet breadth, habitat breadth, clutch size) served as reliable predictors across species of local abundance (population density). The answer was that body mass and latitude were the strongest predictors, although with some evidence of habitat breadth having an effect. Intriguingly we found that species at higher latitudes (further away from the equator) existed at higher abundance. In other words, species tend to be ‘rarer’ in the tropics. This became an impetus for a subsequent paper.

What’s the story about it?

Have a read of Symonds and Johnson (2006a).

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s