Friday, 19 February 2010

Oak Marbles in the Chevin Snow

One of my favourite stomping grounds, Otley Chevin, was covered in snow this morning and I took these photographs of galls on a roadside Oak tree.
I know very little about plant galls but I suspect that this Marble Gall might have been caused by a member of the Cynipidae group of wasps, possibly Andricus kollari.
Having said that, I understand that a complex collection of inquilines and parasitoids can develop within these galls.

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