Sierra Nevada 2005-2012

From 2005 to 2012 Gwylim Blackburn made many trips to California’s beautiful Sierra Nevada to sample intensely the varied forms of Habronattus americanus occurring there. Gwylim’s work has mapped out both the behavioural responses of females to different male forms, and the structure of genetic variation in the area.

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Breakfast, and then to hunt spiders.

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A stunning landscape

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There’s still snow in July, but you can find the spiders already on the ground

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An apparent hybrid between Habronattus americanus and Habronattus kubai

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What a place to work!

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Returning from the hunt

 

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