This morning I was picking through recent ant literature for a 2008 myrmecological retrospective post when I stumbled on this little gem.
Why do autumn leaves change to such striking colors? Kazuo Yamazaki thinks it's all about the ants:
Therefore, bright autumn leaves may have adaptive significance, attracting myrmecophilous specialist aphids and their attending ants and, thus, reducing herbivory and competition among aphids.
I hereby proclaim Kazuo Yamazaki the first recipient of an award in his own name, the Yamazaki "Going Way Out On A Limb" Award, for creative lateral thinking in proposing scientific hypotheses.
source: Yakazaki, K. 2008. Autumn leaf colouration: a new hypothesis involving plant-ant mutualism via aphids. Naturwissenschaften 95: 1432-1904.
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Wow, I didn't think aphids could see that far. And by the time the leaves change colors, and fall off the tree it's to cold for most aphids anyhow. They've already laid eggs and died right?
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