Search found 170 matches

by Robert Hansen
September 10th, 2011, 8:59 pm
Forum: Reading Room
Topic: field guide for South Sonora
Replies: 11
Views: 3967

Re: field guide for South Sonora

There is not yet a state-level field guide or book treatment for Sonora, although one is in the works. However, there is a nice conservation-oriented publication, with color pics for some species, by Jim Rorabaugh. I've uploaded a copy of the paper here:

http://ifile.it/d7rv524
by Robert Hansen
August 22nd, 2011, 9:06 pm
Forum: FHF Image Lab
Topic: Nikon Macro Lens Help?
Replies: 20
Views: 5570

Re: Nikon Macro Lens Help?

You've received lots of good advice here, but in case I missed it, here's one more point. Your D40 uses a smaller (DX) sensor, and thus has a crop factor of 1.5. This means that a 60mm lens is the equivalent of a 90mm lens, and therefore is very close to perfect for use with your current camera. Som...
by Robert Hansen
August 21st, 2011, 8:43 pm
Forum: Herpetoculture Forum
Topic: Some Thayeri
Replies: 6
Views: 2359

Re: Some Thayeri

Can one of you guys show off the main phases seen from thayeri? I really love them and have a male that looks similar to your 2003 female. Woud love to see more, more, more, more. It's hard to put them into discrete categories, but we do it anyway. Very generally speaking, you've got the following ...
by Robert Hansen
August 21st, 2011, 4:04 am
Forum: Herpetoculture Forum
Topic: Some Thayeri
Replies: 6
Views: 2359

Re: Some Thayeri

Greg:

Some beauties there. Love to see the parents that produced that msp/intermediate animal.

Bob
by Robert Hansen
August 19th, 2011, 7:36 pm
Forum: The Forum
Topic: Severe(??) Garter Snake Bite
Replies: 39
Views: 17083

Re: Severe(??) Garter Snake Bite

Hi Scott:

Thanks for weighing in here and adding some nice perspective. Interesting to know that T. e. vagrans has been implicated in a disproportionate share of bites with consequences.

Cheers,

Bob
by Robert Hansen
August 9th, 2011, 5:39 pm
Forum: The Forum
Topic: Thamnophis experts needed!
Replies: 18
Views: 1767

Re: Thamnophis experts needed!

The snake could be a hybrid, and hybrids have been found in Thamnophis . However, hybridization in snakes is generally a rare phenomenon, so in the absence of stronger evidence (e.g., genetic markers) that this particular snake is a hybrid, I'd go with the far more likely explanation that it's one s...
by Robert Hansen
August 7th, 2011, 6:30 am
Forum: The Forum
Topic: Thamnophis experts needed!
Replies: 18
Views: 1767

Re: Thamnophis experts needed!

What Chad said.
by Robert Hansen
July 31st, 2011, 2:29 pm
Forum: The Forum
Topic: The perfect storm! Summer storms in Yosemite.. Pics Added!
Replies: 7
Views: 1225

Re: The perfect storm!

condyle wrote:My mother was almost swept away cruisin for manders in the fiftys in that same way. Have fun though by all means and post some pics!!!
I am just impressed that your mother was cruising for salamanders. What a cool mom she must be!
by Robert Hansen
July 29th, 2011, 10:38 am
Forum: FHF Image Lab
Topic: No Black or Black?
Replies: 12
Views: 3220

Re: No Black or Black?

Another vote for no black is that the scene is more biologically plausible for Arizona elegans. The black dropoff makes it more obvious that the snake is being photographed on rocks rather than a more natural (for this species) substrate.
by Robert Hansen
July 29th, 2011, 5:31 am
Forum: The Forum
Topic: Another backpacking trip to the South Sierras
Replies: 7
Views: 1619

Re: Another backpacking trip to the South Sierras

Oh...and your Elgaria coerulea is also carrying a load of babies!
by Robert Hansen
July 29th, 2011, 5:30 am
Forum: The Forum
Topic: Another backpacking trip to the South Sierras
Replies: 7
Views: 1619

Re: Another backpacking trip to the South Sierras

Your skink is definitely skiltonianus. Nice trip.

Cheers,

BH
by Robert Hansen
July 26th, 2011, 8:08 pm
Forum: Reading Room
Topic: "Venomous" Bites from Non-Venomous Snakes, Critical Analysis
Replies: 16
Views: 7913

Re: "Venomous" Bites from Non-Venomous Snakes, Critical Anal

Just a heads up to anyone contemplating a purchase of this book. Although this is a nice hard-bound book with a color cover, ALL of the internal figures/photos, etc. are in black & white, rendering them much less effective and interesting. The book was designed to be published electronically, and th...
by Robert Hansen
July 25th, 2011, 4:40 pm
Forum: Reading Room
Topic: "Venomous" Bites from Non-Venomous Snakes, Critical Analysis
Replies: 16
Views: 7913

Re: "Venomous" Bites from Non-Venomous Snakes, Critical Anal

craigb wrote:It looks like a great book. But it is something like $243 U.S. Dollars to purchase though. Out of my price range right now....

craig
US $73.08 from Amazon. FHF just saved you $170!

Cheers,

BH
by Robert Hansen
July 9th, 2011, 7:46 pm
Forum: The Forum
Topic: Heading out to Portal AZ in August...Best spots??
Replies: 23
Views: 2490

Re: Heading out to Portal AZ in August...Best spots??

Hi Glen:

I am sure DW can hook you up with good spots when you get there. I am here in Minneapolis at herp meetings with her, and I know she is looking forward to the incoming gang.

Have fun.

Bob
by Robert Hansen
July 1st, 2011, 5:39 pm
Forum: N.A.F.H.A. - Announcements/Inquiries
Topic: desert tortoise split
Replies: 12
Views: 1906

Re: desert tortoise split

I have to weigh in here with a pet peeve regarding the common names of these two tortoises. Might seem not appropriate to the intent of the thread at first glance but stay with me for awhile. With what I think was a wise move, one of the "tenets" adopted by the 1956 committee on common names chaire...
by Robert Hansen
July 1st, 2011, 5:32 pm
Forum: N.A.F.H.A. - Announcements/Inquiries
Topic: Change is good? Problems with our new Pantherophis taxonomy
Replies: 45
Views: 5734

Re: Change is good? Problems with our new Pantherophis taxo

Just a general thought here, not at all specific to ratsnake taxonomy. There is a reason that museum curators and collection managers are never in a hurry to change labels on specimen jars and names in catalogues to reflect the latest taxonomic changes. Just think of Charina vs. Lichanura (Kluge's m...
by Robert Hansen
June 25th, 2011, 10:24 pm
Forum: The Forum
Topic: Neat Geo-reference Tool
Replies: 3
Views: 662

Re: Neat Geo-reference Tool

Also, you need to be very cautious when looking at geo coordinates for old museum records, as these were all applied after the fact by persons who (usually) had no connection with the original collection. Lots of variation in accuracy, from institution to institution, and student worker bee to stude...
by Robert Hansen
June 19th, 2011, 4:56 pm
Forum: Herpetoculture Forum
Topic: Lyre eats mice (new action pic)!
Replies: 29
Views: 11345

Re: Lyre eats mice!

Brad: Congrats on your lyre. They are interesting, underappreciated snakes...able to constrict and envenomate as well. Nice that yours took mice from the start, although that has been my experience with lyrophanes, lamba, vilkonsonii , and Mexican tau , all of which were easy captives. To envenomate...
by Robert Hansen
June 18th, 2011, 5:51 pm
Forum: The Forum
Topic: Mix bag of herps, somthing for everyone (DUW).
Replies: 10
Views: 1810

Re: Mix bag of herps, somthing for everyone (DUW).

Chad:

Great finds and pics. That Nerodia looks like a female full of babies. Tough to hear they might have become established elsewhere...I hope you "removed" her :)

Cheers,

Bob
by Robert Hansen
June 16th, 2011, 8:34 pm
Forum: The Forum
Topic: Cruising for snakes and a full moon????
Replies: 80
Views: 11447

Re: Cruising for snakes and a full moon????

Hi Bob, You ever going to do anything with all that data you've been collecting? I'm going out next week to try to get you some more. :D -nightdriver Eventually, it will be published, as that has been the goal all along. But just when I think it's time to quit, we get a boatload of data that is har...
by Robert Hansen
June 16th, 2011, 4:07 pm
Forum: The Forum
Topic: Cruising for snakes and a full moon????
Replies: 80
Views: 11447

Re: Cruising for snakes and a full moon????

:?: Does anyone know of any formal, published studies along these lines? There are a number of pubs that discuss effects of moonlight on nocturnal activity, but most of the herp-related ones only mention this in passing. However, I am aware of one paper that sought to quantify the effect for a sing...
by Robert Hansen
June 14th, 2011, 7:24 pm
Forum: The Forum
Topic: Cruising for snakes and a full moon????
Replies: 80
Views: 11447

Re: Cruising for snakes and a full moon????

This topic has been kicked around multiple times over the years, but is always interesting. There is no hard and fast rule, but there is variation based on geography, time of year, species, and age/size class (juvs vs. adults). The only good way to get a handle on this is to work a particular place ...
by Robert Hansen
May 26th, 2011, 4:31 pm
Forum: The Forum
Topic: Some recent local finds
Replies: 12
Views: 2262

Re: Some recent local finds

Robert: Very nice stuff...especially the patchnose video. That muscular wave is way cool. I shared your video with Gordon Schuett, an expert in snake behavior, who responded: "No doubt it is a display, with both visual and tactile components. Context? I've observed it in other colubrines during cour...
by Robert Hansen
May 21st, 2011, 9:16 am
Forum: The Forum
Topic: Standard English and Scientific Names — Now Online
Replies: 63
Views: 5078

Re: Standard English and Scientific Names — Now Online

The Real Snake Man wrote:And just to note - there's no Gyalopion; I guess they missed it.
Good catch. Should be fixed now.
by Robert Hansen
May 20th, 2011, 1:54 am
Forum: The Forum
Topic: Standard English and Scientific Names — Now Online
Replies: 63
Views: 5078

Re: Standard English and Scientific Names — Now Online

Well that is half of it, but it is also to provide the most currently accepted taxonomic status in the eyes of SSAR, ASIH, and the Herpetologists League. Here is an excerpt from author instructions for Herpetological Review (published by SSAR, and for which I serve as Editor): "The role of the “Sta...
by Robert Hansen
May 19th, 2011, 9:32 pm
Forum: The Forum
Topic: Standard English and Scientific Names — Now Online
Replies: 63
Views: 5078

Re: Standard English and Scientific Names — Now Online

You guys are getting yourselves needlessly worked up based on a misunderstanding of the purpose of the names list. The point of the Crother list (adopted by ASIH, HL, and SSAR) is to standardize English names…period. It is NOT intended to be any sort of referendum on taxonomic changes, but of course...
by Robert Hansen
April 21st, 2011, 8:38 pm
Forum: The Forum
Topic: Garter Snake I.D. question
Replies: 9
Views: 870

Re: Garter Snake I.D. question

Owen:

Maybe Jeff Boundy will chime in, but he can describe perhaps better than anyone the complicated distribution patterns that exist among coastal garter snakes, including a bit farther south than where you are working, such that T. hammondii enters the mix.

Cheers,

BH
by Robert Hansen
April 21st, 2011, 8:21 pm
Forum: The Forum
Topic: Garter Snake I.D. question
Replies: 9
Views: 870

Re: Garter Snake I.D. question

T. elegans terrestris. Nice pics.
by Robert Hansen
April 13th, 2011, 8:44 am
Forum: Board Line
Topic: Cats
Replies: 164
Views: 36498

Re: Cats

This thread has high entertainment value. Love Wolverton's choice of weapons :)

Serious question for you live-trappers, though. What do you do when you end up with a striped kitty (aka skunk) in the trap? On our ranch property, we have feral cats, but also possums, raccoons, skunks, etc.

BH
by Robert Hansen
April 11th, 2011, 12:50 pm
Forum: Invertebrate Forum
Topic: Invert forum?
Replies: 91
Views: 72788

Re: Lep forum?

And here I completely misinterpreted the intended subject of this thread :)
Image
by Robert Hansen
March 28th, 2011, 8:48 pm
Forum: The Forum
Topic: Tehachapi Slender Salamader
Replies: 1
Views: 367

Re: Tehachapi Slender Salamader

Here's an online account about that species: http://amphibiaweb.org/cgi-bin/amphib_query?rel-common_name=like&rel-family=equals&rel-ordr=equals&rel-isocc=like&rel-description=like&rel-distribution=like&rel-life_history=like&rel-trends_and_threats=like&rel-relation_to_humans=like&rel-comments=like&re...
by Robert Hansen
March 24th, 2011, 9:05 pm
Forum: The Forum
Topic: Possible Country Records for the US
Replies: 181
Views: 88806

Re: Possible Country Records for the US

The deal with Contia is that Hoyer knew he had something different based on morphology (markedly different tail lengths in adults, with populations of each in close proximity to each other). Quite independently, Chris Feldman was using mtDNA sequences of several reptile species looking for common ge...
by Robert Hansen
March 19th, 2011, 11:34 am
Forum: The Forum
Topic: Western Toad Defense Pose
Replies: 4
Views: 970

Re: Western Toad Defense Pose

Looks like a compression injury, which led to the extreme defensive response.
by Robert Hansen
March 19th, 2011, 8:01 am
Forum: The Forum
Topic: Western Toad Defense Pose
Replies: 4
Views: 970

Re: Western Toad Defense Pose

Will:

This toad looks to have been injured, presumably by a car. Yes?

BH
by Robert Hansen
March 12th, 2011, 8:08 pm
Forum: The Forum
Topic: Need some advice for Borneo
Replies: 13
Views: 1722

Re: Need some advice for Borneo

If you need literature, here is a good book. MALKMUS, R., MANTHEY, U., VOGEL, G., HOFFMANN, P., KOSUCH, J. The Amphibians and Reptiles of Mount Kinabalu and two sources if you wish to purchase: http://www.chimaira.de/gp/product_info.php/language/en/info/p59287_The-Amphibians-and-Reptiles-of-Mount-Ki...
by Robert Hansen
March 11th, 2011, 8:56 pm
Forum: The Forum
Topic: March 2011 issue of Herpetological Review
Replies: 2
Views: 836

Re: March 2011 issue of Herpetological Review

The issue will mail from Allen Press on 3/21, packaged together with the Journal of Herpetology (for those who receive both).

Cheers,

BH
by Robert Hansen
February 22nd, 2011, 8:31 pm
Forum: The Forum
Topic: Contact Zone
Replies: 28
Views: 3166

Re: Contact Zone

The traditional view of the helleri x oreganus contact zone was offered by Klauber (1956), who suggested that it roughly followed a line from “Lebec-Shandon-Cape Martin.” Subsequent work by Greg Schneider (1986) modified this slightly, finding that the “zone of contact…was found to be approximately ...
by Robert Hansen
February 18th, 2011, 12:37 pm
Forum: The Forum
Topic: Newt
Replies: 21
Views: 1351

Re: Newt

Fieldnotes wrote:Rob, I hear a rumor that they may constitute a distinct taxon; any truth about that?
Will: I rather doubt it, but when nuclear sequences are generated, the picture may change.
by Robert Hansen
February 18th, 2011, 4:16 am
Forum: The Forum
Topic: Newt
Replies: 21
Views: 1351

Re: Newt

Looks like a creek whose name begins with an M...newts were first discovered there about 30 yrs ago, at which time we were excited to find this small population of what we thought was the southern range limit for T. sierrae . Recent work on mtDNA says they're actually coastal animals, T. torosa , wh...
by Robert Hansen
February 17th, 2011, 10:09 pm
Forum: News
Topic: Hot New Recreational Drug: Snake Venom
Replies: 1
Views: 1247

Re: Hot New Recreational Drug: Snake Venom

I liked this response from one of the readers of this article: "I'm gonna go out on a limb here and say that he was already a few landings shy of the top floor when he decided that letting a scorpion bite him for fun was a good idea."
by Robert Hansen
January 26th, 2011, 10:59 pm
Forum: Reading Room
Topic: Looking for feedback on Garter Snakes Evolution and Ecology
Replies: 8
Views: 3812

Re: Looking for feedback on Garter Snakes Evolution and Ecol

Jeff:

Here's a link to that German book...looks pretty cheap. You can see how your slides came out :)

http://www.reptilica.co.uk/Draco-25-Str ... 0%29.phtml

Bob
by Robert Hansen
January 25th, 2011, 9:58 pm
Forum: Reading Room
Topic: Looking for feedback on Garter Snakes Evolution and Ecology
Replies: 8
Views: 3812

Re: Looking for feedback on Garter Snakes Evolution and Ecol

It's really the only show in town for that group of snakes, and an essential reference if you are interested in them.
by Robert Hansen
January 19th, 2011, 11:10 pm
Forum: Reading Room
Topic: Help finding an article?
Replies: 3
Views: 2600

Re: Help finding an article?

The thesis is unpublished, but there was a paper he coathored that looks to have been based in part on his thesis work. Here is a link: http://onlinelibrary.wiley.com/doi/10.2 ... 4/abstract.
by Robert Hansen
January 8th, 2011, 11:04 pm
Forum: The Forum
Topic: Some of the Favorite Finds and Photos of 2010, Part 2 of 2
Replies: 19
Views: 3378

Re: Some of the Favorite Finds and Photos of 2010, Part 2 of

Matt:

Congrats on a spectacular year. Wonderful pics, especially of your kids. They don't know how lucky they are to have you as their dad...some day when they're grown they will crack up when looking at these pics.

Cheers,

Bob
by Robert Hansen
January 7th, 2011, 11:09 pm
Forum: The Forum
Topic: Ring-neck Diet
Replies: 3
Views: 516

Re: Ring-neck Diet

There is some geographic variation in ringneck diet within California (based on dissection of stomach contents of museum specimens), but this has not been published. Based on the most recent work, there is not much point in recognizing the traditional lineup of subspecies in California. There are po...
by Robert Hansen
December 23rd, 2010, 9:41 pm
Forum: The Forum
Topic: ID help from Tejon?
Replies: 10
Views: 980

Re: ID help from Tejon?

On your Pit...if the "old school house" refers to the one in Tejon Canyon, it is a former Indian school. The snakes there are all catenifer. You get annectens influence once you get around Lebec in the Grapevine.
by Robert Hansen
December 23rd, 2010, 8:10 pm
Forum: The Forum
Topic: ID help from Tejon?
Replies: 10
Views: 980

Re: ID help from Tejon?

As for the Pits...stuff from the San Joaquin Valley side of the Tehachapis is ssp. catenifer . Snakes from around Lebec show definite influence of annectens ; whether one calls them that or catenifer x annectens intergrades is a matter of choice at this point. Glad to hear you figured out where the ...
by Robert Hansen
December 23rd, 2010, 7:40 pm
Forum: The Forum
Topic: Article on Italian Wall Lizards?
Replies: 7
Views: 841

Re: Article on Italian Wall Lizards?

Wall lizard note is in the Dec. issue, which mailed from Kansas on 15 December. SSAR members can download an ebook version of the issue from the Zen Scientist site (http://www.zenscientist.com/index.php?o ... y=2&page=2).
by Robert Hansen
December 23rd, 2010, 7:34 pm
Forum: The Forum
Topic: ID help from Tejon?
Replies: 10
Views: 980

Re: ID help from Tejon?

Your Ensatina looks like E. eschscholtzii eschscholtzii (Monterey), but they do not occur anywhere near Tejon Ranch. Are you sure of the locality?

Cheers,

Bob