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BG
Trad climber
JTree & Idyllwild
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Topic Author's Original Post - Nov 10, 2011 - 09:57pm PT
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Took this shot at the base of the Weeping Wall, Suicide Rock, CA.
It was about 1/2 inch long and moved very fast.
Is this a commonly known type of spider?
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rincon
Trad climber
SoCal
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Nov 10, 2011 - 10:06pm PT
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Yup...Red Back Jumping Spider.
Not sure what it is about jumping spiders, but I like them. They don't creep me out like other spiders.
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Spider Savage
Mountain climber
The shaggy fringe of Los Angeles
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Nov 10, 2011 - 10:44pm PT
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rincon
Trad climber
SoCal
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Nov 10, 2011 - 10:55pm PT
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Reilly
Mountain climber
The Other Monrovia- CA
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Nov 10, 2011 - 11:28pm PT
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A friend did his dissertation on the optical nerve system of them guys!
Imagine operating on one of them. Now he designs electric car motors and
controllers. Hey, it's all electrical he says.
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donini
Trad climber
Ouray, Colorado
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Nov 10, 2011 - 11:32pm PT
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The spiders that really got my attention were the bird eating spiders in the Orinoco River Basin in Venezuela.
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healyje
Trad climber
Portland, Oregon
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Nov 10, 2011 - 11:32pm PT
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Jumping spiders - will make eye contact and are probably smarter than you're dog...
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donini
Trad climber
Ouray, Colorado
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Nov 10, 2011 - 11:36pm PT
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What, exactly, isn't smarter than your dog?
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philo
Trad climber
Somewhere halfway over the rainbow
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Nov 11, 2011 - 01:05am PT
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Dog Doo
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Willoughby
Social climber
Truckee, CA
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Nov 11, 2011 - 01:27am PT
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Found this bad mama walking down the street near my house a few weeks back. Kept her in a jar and fed her grasshoppers for a couple of weeks to fatten up before winter. Needless to say, she got relocated a little further from the house when I let her back into the wild.
I get the impression that hairy spiders give a lot of folks the heebie-jeebies. Nope, for me it's these. Like they've been gorgeously designed to send my monkey brain running. But I'm a highly-evolved, rational monkey (sort of). When I found her I scooped her up in my hat and had to rotate the thing constantly for about 15 minutes to keep her from getting to close to my fingers. She had my undivided attention the whole walk home.
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Willoughby
Social climber
Truckee, CA
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Nov 11, 2011 - 01:36am PT
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PS - That's not a Red-backed Jumping Spider, aka the Johnson Jumper (Phippidus johnsoni).
It's the closely related Phidippus adumbratus. Note those banded legs. Also, Red-backeds have red restricted to the abdomen.
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apogee
climber
Technically expert, safe belayer, can lead if easy
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Jun 23, 2012 - 10:06pm PT
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Are you sure it was a Black Widow? That's an awfully dramatic/atypical reaction...
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MH2
climber
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Jun 23, 2012 - 11:50pm PT
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A spider I met a couple weeks ago. Although its optics are small it had no trouble keeping track of where I moved.
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sandstone conglomerate
climber
sharon conglomerate central
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Jun 23, 2012 - 11:55pm PT
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Squashing Iktome is bad karma...you're only a 1,000x bigger than they are.
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zBrown
Ice climber
chingadero de chula vista
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Jun 24, 2012 - 12:07am PT
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Takes me way back to Kenneth Roeder's Nerve Cells and Insect Behavior
Second, single neurons exhibit some surprisingly rich examples of
computational sophistication in terms of (a) temporal dynamics (coding superimposed upon circadian and shorter-term rhythms),
and also (b) what Kenneth Roeder called ‘neural parsimony’: that optimal information can be encoded, and complex acts of
sensorimotor coordination can be mediated, by small ensembles of cells
Analysis of neuronal oscillators for rhythmic behavior have
delineated a profound influence of sensory feedback on interneuronal circuits: they are not only modulated by feedback, but may
be substantially reconfigured. Additionally, insect motor circuits provide potent examples of neuronal restructuring during an
organism’s lifetime, as well as insights on how circuits have been modified across evolutionary time.
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Darwin
Trad climber
Seattle, WA
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Jun 24, 2012 - 12:11am PT
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Nobody has mentioned Spider kletter shoes yet? Who made those?
And MH2, that's one of the best photos I've seen on this rag.
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zBrown
Ice climber
chingadero de chula vista
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Jun 24, 2012 - 12:14am PT
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Hey I'm walkin here!
but then
She was common, flirty, she looked about thirty
I would have run away but I was on my own
She told me later, she's a machine operator
She said she liked the way I held the microphone
I said "My, my" like the spider to a fly
"Jump right ahead in my web"
So much for higher education. Hope I don't have to pay back that NDEA Fellowship.
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Chaz
Trad climber
greater Boss Angeles area
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Jun 24, 2012 - 10:31am PT
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That's not a Brown Recluse.
BR's live in webs, they don't roam around the yard.
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