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Photo#344780
Goldenrod Spider - Misumena vatia - female

Goldenrod Spider - Misumena vatia - Female
Enumclaw, Forested Unincorporated King County, Washington, USA
September 6, 2009
Size: 5mm
There is a whole story behind this image that took place a month before I ever registered for BugGuide so I didn't really think to get more pictures. Here's what I did though: We have a huge amount of flower crab spiders living on our flowers and since I knew that the Misumena vatia can change colors to match their environment (only yellow and white though)...I took a white female with red stripes off of our Echinacea flowers (which are pink), used a Sharpie to put a dot on the dorsal abdomen, and transplanted it to a Rudbeckia hirta flower (light orange) about 15 feet away. Then I tied a twist-tie around the base of the flower so I'd remember which flower it was on. I guess long story short, it took 6 days for the spider to finally turn yellow and it never did leave that same flower. This information can probably all be easily read in books, and I have read it myself actually...but I like to find out for myself. Plus it gives me something fun to do!

The only reason why I didn't crop this photo was because I wanted to show how she had camouflaged herself. It's fine if this needs to be frassed, no biggie. :)

Great story. Put this book on
Great story. Put this book on your Christmas list: "Predator on a Flower", by Douglass H. Morse.

-K

 
Book
I just checked Amazon.com to see if they carry it (they do). I'm curious, does it read like a non-fiction novel? ...or is it like a textbook? etc.?

 
Somewhere in between. It's a
Somewhere in between. It's a scientific treatise in book form, a summary of many years of research focussing on this one specific species, which serves as his working model for inquiries into questions of "lifetime fitness"*. The book jacket quote, from Søren Toft, says it better: "This is natural history in the best sense of the word, in which ecology, genetics, ethology, and physiology merge to create a coherent picture of a species' life strategy."

Yes, there are sections that might make you sleepy, but one can skip over these. By the end, you'll know this one species inside and out.

* "Lifetime fitness" refers here to the "success with which an individual places its offspring into the next breeding generation".

By the way, perhaps a better Christmas gift, if you don't already have it, is Foelix's Biology of Spiders.

-Kevin

 
Books
That book sounds interesting. I am sort of an 'obsessive perfectionist' in many ways and I love fully and completely 'knowing' things...so this "Predator on a Flower" book is probably right up my alley!

Also, a very odd coincidence just occured! I just ordered "Biology of Spiders" and also Eric Eaton's "Kaufman Guide" last week! Weird that you mentioned it! Amazon just sent me this:

Rainer F. Foelix "Biology of Spiders, 2nd Edition"
Previous estimated arrival date: November 06 2009 - November 18 2009
New estimated arrival date: November 02 2009 - November 06 2009

Eric R. Eaton, Kenn Kaufman "Kaufman Field Guide to Insects of North America (Kaufman Field Guides)"
Previous estimated arrival date: November 06 2009 - November 18 2009
New estimated arrival date: November 02 2009 - November 06 2009

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