Sampling song from males at high and low elevations from two different mountains allowed us to (i) assess the presence of any differences in song
structure at different elevations and (ii) consider the potential mechanism generating variation or song dialects on a small spatial scale.
Not exact matches
If there is no movement between birds from
different elevations and / or mountains, then song
structure could be
different at all four locations.
Song
structure varied significantly between high and low
elevation adjacent populations from the same mountain and between populations from
different mountains
at the same
elevations, despite a continuous distribution across each mountain slope.