Importance of snakes to hikers safety

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Jun 11, 2008
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I try not to get involved in threads that have to do with snakes because the lack of accurate information fueling many of the post here really bugs me. I'm making this thread to add a bit of science to the "Kill all the snakes" vibe I've seen gaining ground recently.

I'm sure not many people know about snake metabolism and the part it plays in disease control.
Venom can be made of many different things but all snake venom has complex enzymes and a ton of protein. The reason that is important is because it takes a snake a lot of energy to produce that venom. That also means that many venomous snakes have a higher metabolism in order to take in the extra calories to produce the venom they need to procure food and that translates to more mice being eaten in a shorter period of time.

I've had Lyme disease twice. It is a hazard of working outdoors. I know a lot of people think Lyme disease comes from ticks but it does NOT. Lyme disease, Spotted Fever, Barbesia, Ehrlichiosis, and a few others that are commonly carried by ticks all start in rodents like mice. In fact mice "make" almost all the diseases that we have to be careful of in the woods, and the only way to be infected by a tick is to be bitten by a tick that has already bit an infected rodent. What is the largest predator of small rodents......Snakes of course. Almost all small/med predators eat rodents but none are as specialized to go down in their dens and clean house like a snake. Sankes are the most effective way to cut off a lot of diseases at the source.

I live in the Mid-Atlantic and have seen stories of tick disease "outbreaks" for years on the news. The USGS has twenty years of snake population data that shows a DIRECT CORRELATION between the reduction in snake populations and the number on ticks that were carriers of rodent diseases like Lyme. This particular long term study is done at Patuxent Research Refuge. This correlation was discovered accidentally when some entomologists noticed trends in their research on the percentage of ticks carrying diseases that matched up with the timelines of "dips" in the snake population surveys done on the refuge.

There are a lot of thing that snakes do that are important to the environment. We all know that but a lot of people just don't care. I'm hoping that a little extra education will help more people to understand why they are even more important to those of us that like to be outdoors since they are the most effective natural method of keeping us from getting sick while out in the woods.

Also, I'd like to add a bit of credentials to my opinions/experience. I'm a biologist that specializes in Herpetology, the study of reptiles and amphibians. My area of study is in population ecology which means I study how the growth or decline of a species effects the environment that it lives in. I have been working with Timber Rattlesnakes (C. horridus) for several years and have never even had a close encounter to getting bit. I have captured them, clipped scales to mark them, implanted radio telemetry devices, and tracked some individuals for over 24 months. I can say more than most that I understand venomous snake safety but I just don't see them as much of a threat. I have over forty snakes right now being tracked and none of them want anything to do with me. They are there and I am there but that's all there is to it. I have however seen other people come close to getting bit by screwing with the snakes that I was tracking. The only way to get bit is to mess with the snake, try to pick it up, etc... or to step on it accidentally. The latter is a very rare occurrence and that statement is backed up by data from the USFW on the locations of snake bites admitted to hospitals since 1971 when they started keeping track of bite locations.

This snake is being released after radio implant surgery. It should be pretty aggressive after such an ordeal but this is the common way they act upon release.

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Here's one that I'm "poking" to provoke to rattle but it just wouldn't. It was warm and decided to slowly leave than turn and fight even though I was harassing.

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I got this one to rattle because he was about to shed and was almost completely blind from the scales over the eyes going milky. He was vulnerable because he couldn't see. He had been caught before, implanted with a tracker, and weighted and measured. He had every reason to be aggressive but all he did was peacefully crawl away.

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I've got no doubts that snakes are important to the ecosystem of most of the different environments in our country, but if I'm hungry or if they pose a hazard to me I'm not going to think twice about killing one either. I don't go out of my way to kill snakes for the sake of killing them...
 
I have captured them, clipped scales to mark them, implanted radio telemetry devices, and tracked some individuals for over 24 months.

What is the average range for rattlesnakes through their life cycle?
 
PayetteRucker- Thats part of my point. They don't pose a hazard. You may pose a hazard to yourself if you mess with them but the snake, if left alone, does not pose a hazard to you. I am referring to snakes in the wild. I understand the difference between snake populations on ranches and home dwellings.

Now rodents and their diseases..... thats a threat to be concerned about.
 
oops, doubletap. I can remember a few instances where I have been struck at by poisonous snakes in the wild that were unavoidable. If you go hiking through swamps around the Emerald Coast this time of year, water moccasins will literally be dropping out of trees by the dozen as you try to brush aside overgrowth. I've been struck at several times hiking through swamps in Florida. I was reading a book one afternoon along a creek in Houston and had one come out of the water right at me, we scared each other and he struck. I never got off my ass so fast in my life. Last August we were on a rafting trip and HAD to land at a particular beach, and there was a rattler sitting coiled up right at the 10 feet of space we had to land 15 boats. He took a .38. Like I said-I don't go looking to kill snakes unless I'm hungry or otherwise had to.
 
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great info, but to be honest, I'm still scared of snakes. I ran across a rattler when I was down in Mexico a few years back, and I do mean, ran across. Happily, I was able to dance my way out of there, but I didn't see him till I was on top of the little guy! BTW, you remind me a lot of a college buddy of mine, down in S. Cali. He used to relocate snakes that found their way to the campus, and now he works for the USGS as well, up near Sacramento... turned his pastime into his profession. Thanks again for the post and info!
 
Thank you for this informative post. I agree with your sentiment about snakes being important for keeping an ecosystem balanced. Mess with one key species and the entire ecosystem can come crashing down.
 
What is the average range for rattlesnakes through their life cycle?

Range as in distance? I have some males (males travel farther than females) that have moved over five miles. That is an example of a rattlesnake form the population I'm working with. I don't know what species live near you or what range they might have.
Many of the females I have tracked may move only a few hundred yards from the time they come out of the hibernaculum and stay there for most of the season.
 
They don't pose a hazard.
They "generally have no malicious intentions toward humans" might be a way of wording it that more people can relate to.
I was disappointed that I didn't get to see a snake on my last hike to get a picture of. Was quite relieved the one I accidentally stepped on this spring was not a timber rattler, too, though. That would have definitely qualified as a hazard.
 
They "generally have no malicious intentions toward humans" might be a way of wording it that more people can relate to.
I was disappointed that I didn't get to see a snake on my last hike to get a picture of. Was quite relieved the one I accidentally stepped on this spring was not a timber rattler, too, though. That would have definitely qualified as a hazard.

Actually stepping on a snake, as you did, is not common at all. The VAST majority of snake bites from venomous snakes reported to hospitals were in the hands or wrists. More than a third of the people taken to hospitals in 2008 also had a B.A.C. and I doubt the snake had been drinking.
 
Well, I'm happy not to have negatively affected those statistics:thumbup:

btw, I do believe that when I see a snake in the woods that it has no more intention of hurting me than I do it. I'm more concerned with a slippery rock than a pit viper most of the time.
On the other hand, having had to crawl under deadfalls shortly after walking up on a copperhead laying across the trail, walk a kayak through rocks in shallow water yards from where I'd stopped to look at what I initially mistook for a water moccasin, and occasionally paddle through overhanging brush, I see potential for encounters that defy the statistics without being anyone's "fault".
I enjoyed your post here, and the videos, and some that Joezilla has posted, too. I may seem like I'm arguing the point, posting snake stories sometimes, but that's not my intention. I try to be realistic about them, and don't want to see snakes vilified, just saying it's prudent for us to be aware of(and careful of) them-just like those slippery rocks.
 
Speaking of copperheads..... They are my favorite snake in Maryland. Here are a couple vids and pics from very close distances of wild copperheads from a study area that were just caught, weighted, measured and scale-clipped. They should have been pretty upset but as long as I was gentle in handling none of them even tried to bite.

holdingcopper.jpg


CopperPair2.jpg


copperhead1.jpg



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Well Said, Great Post, I really enjoy coming across any wildlife when out and about, I always count myself lucky when I happen to encounter a snake whether it be venomous or Not..I do not fear snakes, but I have a healthy respect for them.. and try to be mindfull of my steps and handplacements when I'm in a particularly "snaky" environment.

I have spotted the Odd Timber rattler here in NY but most of the snakes I encounter are Black racers, Northern Black rat snakes, Milk snakes and again the odd copperhead (but the venomous ones are rare here) Most of my "close calls" if you could call them that where in Central America.. including 3 seperate instances with fer de lance snakes or Tommy Goffs as the locals call them... One decided to hang out in the basin of the sink i the Hut where My wife and I where staying.. he was very accomodating about letting me coax him into a pillowcase witha curtain rod and..But I must admit my first thought was machete...
I think we are snakes trigger some primal fear response in us.. but with proper information I believe it is possible to counteract at least some of that...
Thanks for the info Md..
 
I see potential for encounters that defy the statistics without being anyone's "fault".

You can't defy statistics. The potential encounters you describe are included in the stats and are whats known as "legitimate" bites. One of the reasons that legitimate bites are rare is because there are many times that a snakes natural camouflage will prevent you from even knowing an encounter has taken place. I can't tell you how many times I have been tracking a snake that has decided to take the "you can't see me" approach. On friday of last week it took me five minutes to find a snake that I was within eight feet of. I knew I was within eight feet because thats how far I can pick up a signal with the antenna removed and the squelch turned up on the tracker. The snake was within a foot of me several times but decided to wait it out hoping I would leave instead of giving away its hiding position by striking.
 
M-25--- Brother, you are my hero. I'd like to meet you.
Attitudes are changing about snakes, because of people like you... Thanks!
Rolf
 
I think we are snakes trigger some primal fear response in us.. but with proper information I believe it is possible to counteract at least some of that...
Thanks for the info Md..

Thats in interesting point. I volunteered for Frisky's Primate Sanctuary for five years while I was in school and noticed that all the monkeys and apes were terribly afraid of snakes. Even the ones that were captively born and had never seen a snake. All it would take was a snake to come on the TV and they would flip out like nobody's business. I wonder if there is something "programmed" in all primates instinct that says snake=danger? Its an interesting concept and one I have thought about quite a few times.
 
M-25--- Brother, you are my hero. I'd like to meet you.
Attitudes are changing about snakes, because of people like you... Thanks!
Rolf

Thanks, those changing attitudes are what its all about.
I'm open to hosting any WSS travelers that head through my neck of the woods!
 
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