Camera Trapping In Yemen

Waleed Al'Rail with Leopard Foundation's camera trap, Hawf, Yemen

Waleed Al’Rail with Leopard Foundation’s camera trap, Hawf, Yemen

As I wrote in a previous post, using camera traps in wildlife photography provides its own unique set of challenges and possibilities for unique photographs. Using camera traps in a different country is a totally different story.

Before this assignment I was only operating one camera trap, but by the time I was getting on a plane to try and get some pictures of the mysterious wildlife Yemen has to offer they totaled five. There was surprisingly little resistance by the immigration people of Yemen to my equipment and me coming into the country. This was mainly due to the fact that I am not a journalist and even more importantly all the work David Stanton and Yousuf Mohageb had put into making this step of the project go smoothly (David is from the Foundation for the Protection of the Arabian Leopard in Yemen and Yousuf Mohageb runs Arabian Eco-tours).

David Stanton (right) and Yousuf Mohageb (center) eating dinner, Yemen

David Stanton (right) and Yousuf Mohageb (center) eating dinner, Yemen

Bureaucratic problems avoided, it was time to focus on placing the cameras in spots where there were good chances of animals coming by. While Waleed Al’Rail and  Murad Mohamed (both are Yemeni Arabian Leopard researchers) were checking their cameras and showing me the area, I was imagining all the good locations for the camera traps along the game trails we were using. When I expressed my ideas, Waleed and Murad made me aware of a problem I had not even considered. Yemen is a Muslim country, and in Islamic law it is not accepted to take pictures of woman. Sure that’s easy to control when you are behind the camera but when you put the camera out in nature, especially in an area like ours where people use the land and a daily basis, it is incredibly challenging. There was a fine balance between a good location for the cameras and one that women may use while they were deployed. If women saw the cameras, I was told, they would get destroyed.

Keeping this in mind, we deployed three of the five cameras into the cloud forest habitat of the Hawf Protected Area. Three days later a cyclone arrives (the worst in forty years) and destroys, or better yet, completely obliterates one of the cameras. One camera down, it was beyond repair.

 

Cloud forest, Hawf Protected Area, Yemen

Cloud forest, Hawf Protected Area, Yemen

Flooding in the Hawf Protected Area, Yemen

Flooding in the Hawf Protected Area, Yemen

Broken camera from camera trap, Hawf Protected Area, Yemen

Broken camera from camera trap, Hawf Protected Area, Yemen

Nonetheless the camera captured one image before being flooded.

Honey Badger (Mellivora capensis) pair, Hawf Protected Area, Yemen

Honey Badger (Mellivora capensis) pair, Hawf Protected Area, Yemen

The other two cameras also snapped a few images.

Indian Crested Porcupine (Hystrix indica), Hawf Protected Area, Yemen

Indian Crested Porcupine (Hystrix indica), Hawf Protected Area, Yemen

Curious Caracal

Arabian Caracal (Caracal caracal schmitzi), Hawf Protected Area, Yemen

White-tailed Mongoose (Ichneumia albicauda), Hawf Protected Area, Yemen

White-tailed Mongoose (Ichneumia albicauda), Hawf Protected Area, Yemen

Small-spotted Gennet (Genetta genetta), Hawf Protected Area, Yemen

Small-spotted Gennet (Genetta genetta), Hawf Protected Area, Yemen

Honey Badger (Mellivora capensis) juvenile, Hawf Protected Area, Yemen

Honey Badger (Mellivora capensis) juvenile, Hawf Protected Area, Yemen

After a couple of weeks we placed the two remaining cameras into the far desert inlands. Animal densities are definitely lower in this area but a few different animal species are present there as well.

Desert, Hawf Protected Area, Yemen

Desert, Hawf Protected Area, Yemen

Arabian Wolf (Canis lupus arabs), Hawf Protected Area, Yemen

Arabian Wolf (Canis lupus arabs), Hawf Protected Area, Yemen

Rock Hyrax (Procavia capensis), Hawf Protected Area, Yemen

Rock Hyrax (Procavia capensis), Hawf Protected Area, Yemen

Spiny Mouse (Acomys cahirinus), Hawf Protected Area, Yemen

Spiny Mouse (Acomys cahirinus), Hawf Protected Area, Yemen

Throughout camera trapping in Yemen I was surprised by the lack of camera trapping results. It was quite interesting how much more wary the animals are of foreign objects here, I think caused by the constant human pressure on them. As you can see from the pictures as well, most wear taken at night. Animals in Yemen are more nocturnal than in areas where hunting pressures are not as strong. While I was there I heard three live rounds go off, no doubt each time the rifle was aimed at an animal.

Now if only this was an Arabian Leopard

Now if only this was an Arabian Leopard

*If you are interested in purchasing any of the pictures displayed in this post, please check out my fine prints page for pricing.*

Blog Showcase: Camera Trapping Campus

There are a few blogs I really love to read and I thought I would share them with you to check out as well.

Jake and Christian are not only friends but they write a great blog about camera trapping as well. They concentrate most of their camera trapping efforts around the UCSC campus, therefor the name Camera Trapping Campus (though to be honest this is me just assuming that) as well as in Marin county. They are maximizing the use of their pictures by sharing their insights on how the pictures were achieved through their blog as well as in the classroom.

They were both nice enough to answer a few questions that I think can provide a very helpful tool for your own camera trapping adventures and its applications. Plus if you have a chance to check out their blog you will get hooked, just as I was about their nature adventures!

Camera Trap Image: Gray Fox in Sierras - Copyright Jake Kirkland

Camera Trap Image: Gray Fox in Sierras – Copyright Jake Kirkland

Q: How did you two first get into camera trapping?

Jake: I first got into Camera trapping when I found a picture on the internet.  It was of a bobcat carrying a gopher snake in its mouth.  The picture was taken in Marin County near where I grew up which was extra exciting.  I learned that it was taken by a camera trap and by this scientist who ran a blog and just happened to teach a class on the art of camera trapping.  As I am sure you know by know the blog was www.cameratrapcodger.com and the scientist was Chris Wemmer AKA The Codger.  Well the class was happening in three weeks and I was not going to be able to attend, so Christian, Sean and I vowed to take the course the following Summer, which we did.  I got an off the shelf camera the Christmas before the class, but only got to try using it a few times before the course.  At the course we got a chance to use homebrew cameras which I had always wanted to use.  After the course the Codger, held a workshop for four of us at the Cal Academy where we learned to hack our own cameras.  I should also mention that I had been a reader of http://natureofaman.blogspot.com/ and Randomtruth was also taking the course.  We all became friends and have gotten to do some great camera trapping together over the last year and a half.

Christian: About two years ago, I was searching online for any tips on sea caves to explore in Point Reyes. The Codger’s blog came up as a search result — of course a post about Mountain Beavers — and I was immediately intrigued. I had never heard of a Mountain Beaver before or camera trapping and the idea of photographing all of these amazing creatures was an truly thrilling concept. I think I immediately emailed Jake, completely stoked on pursuing the idea. One thing led to another and the next summer I was enrolled in the Codge’s Sierra Workshop.

Q: What would you consider the advantages and disadvantages of camera trap photography?

Jake: The biggest advantage for me is it allows me to do some wildlife photography when I really don’t have much time for it.  With a camera trap I can spend a half a day once a month setting up and picking up cameras and get some good shots.  Another advantage is that since you are not around to scare the wildlife, you may get some good behavior that you would not get stalking them or from a blind. The major disadvantage is that you don’t get to frame the shot as you would with traditional photography. One of the best things I learned from the Codger is to frame your camera trap shots with an eye-catching background. I still have a long ways to go in improving on this.

Christian:  The advantages of camera trap photography would be time efficiency, safety in regards to both humans and animals and also the ability to capture reclusive animals that are virtually impossible to capture with live photography.

From what I have experienced, the disadvantages are primarily not being present to monitor the cam — those pesky problems of batteries running out, a leaf or branch that has grown over the lens, or even pickiness over how the animal is framed. However, for the latter issue, a skilled cam trapper can develop skills to create a set that has a high probability of success in terms of framing.

Camera Trap Image: Bobcat - Copyright Christian Naventi

Camera Trap Image: Bobcat – Copyright Christian Naventi

Q: How do you select a specific site to set up a camera trap?

Jake: Try and think like the animal you are trying to get on camera.  Would they walk through this path? Would they stop at this rock to look around?  Would they step over or go around this fallen tree? The other major decision you have to think about is whether it will be a general set or if you are going for a target species. You have to set the camera up different if you are going for a small rodent versus a larger predator. With the homebrew cameras you have to keep in mind the rising or setting sun or heat waves coming off of rocks causing false triggers. Now I am trying to frame more artistic shots, but we will see how that goes.
Christian: If I am going for a specific animal, then it is based on clues in the environment — scat, trail crossroads, middens, etc. Other than that I am thinking of views that I enjoy. I am a big fan of the birds-eye-view and I like climbing trees anyway. Log sets are also attractive; you just know that some critter is going to ramble across and I think it presents as a striking image.
Q: Are people surprised by the animals you two have photographed on a University campus?
Jake: People here at UCSC are usually surprised, but in a way they are not because they see a lot of these animals in their day to day movements. On the other hand, other people certainly get very surprised.  I personally was not surprised by the species showing up on camera but was pretty surprised by the apparent predator density.  At the ~26 acre Younger Lagoon Preserve we have images of at least three different individual coyotes and three different individual bobcats.  There are quite a few brush rabbits around, but that is still a lot of predators in a small space.
Camera Trap Image: Gray Fox - Copyright Christian Naventi

Camera Trap Image: Gray Fox – Copyright Christian Naventi

Q: Jake, it looks like you are a big herp fan. Any plans to do some creative herp camera trapping? If so, what obstacles do you think you will have to overcome?
Jake: I guess the biggest hurdle is getting an endotherm to set off the passive IR sensor.  A few herps get warmer than their environmental surroundings, but not all.  Tortoises are one and I would love to try and camera trap Desert Tortoises in the Mojave Desert.  I have gotten Scelopera on camera before, but I am not convinced yet that they were the ones that triggered the camera but it may be possible.  Last Winter in collaboration with the Codger we got a picture of a raccoon with a Dicamptodon or Giant Salamander in its mouth.  So we have plans to trap pools with larva in them and hope to catch another predation shot.  If I had a camera with an active IR sensor, where the animal cuts a beam to trigger the camera, I would love to trap a rattlesnake den in the spring and get pictures of them coming in and out of the den as they come out of hibernation.
Q: Christian, how do you use camera traps in your classroom? What grade do you teach and do you think there is a way to incorporate aspects of camera trap photography at other grade levels?
Christian:  For the past two years I have been teaching in a middle school classroom at private/non-public special ed school. I have used camera trapping with the students at Audubon Canyon Ranch in Bolinas. It has been included loosely in the classroom as a means for the students to interact with the outdoors rather than simply observing. The trapping around our school has been with an after-school Science Club, where students were examining what species were living in a more urban environment.I have been creating a true camera trapping curriculum in my head over the past years where students would tie together aspects of pure research, physical activity outdoors and an element of service learning where they can advocate for care and protection of land/species in their community. I hope to have that actually finished for next school year.One of the great features of my school is the collaboration that exists between staff. The high school class this year is teaching an Environmental Science class and elements of camera trapping will tie in with that curriculum. In general, I believe camera trapping can be a useful tool to introduce students to different environments, animals and their behaviors. The payoff for only a small amount of work can be quite fantastic.
Camera Trap Image: Bobcat - Copyright Jake Kirkland

Camera Trap Image: Bobcat – Copyright Jake Kirkland

What are the next steps for you guys? Are there specific target species you would love to capture on your camera traps?

Jake: We still have many many goals we have yet to achieve.  No Mountain Lion yet and every camera trapper needs one of those in the bag.  I aim to get kit foxes next year in the Mojave Desert.  That should be a very attainable goal.  I would also love to get ringtail and the Mojave may be a place for that.  We both are very excited by trying to get Red Tree Voles back in Sonoma County in collaboration with the Codger.  I have yet to get a bear or a Mountain Beaver on one of my cameras so that will be the goal for the Sierras next year.  I will have no excuses for not being able to get either of those after the great success others had up there this past season.  For Santa Cruz I really still want to get Long-tail weasel.  They may or may not be in YLR but they are certainly within a few 100 meters of there so hopefully we can catch a wanderer in the reserve.  I also think it would be a ton of fun to take a camera or two with you on vacation.  I love to go to Central America and even on short sets I could get some really fun things.  Now to figure out a way to actually go on vacation while still in grad school.

Christian:  Aside from the aforementioned curriculum, I have a few fantasy projects. One being camera trapping the endangered Pomo Tree Mouse in Sonoma County with cameras high up in Doug Fir trees. I have also caught the ringtail fever and am curious if any are still around the North Bay and Napa County. The annual Mojave Desert trip that has been blogged about on our site is something that I hope to finally participate in next spring. Kit Foxes!

 

It sounds like you guys really agree on these issues (especially since you answered these questions independently) which is exactly what makes your blog one entity, rather than two individuals writing it. Keep up the great work guys, we are all looking forward to follow you and see what new things you can come up with!

Aptos Pumas Mating Pair

Like most other felines, pumas live a rather solitary life. The only prolonged periods of time multiple animals spend time together is the 15 month period (on average) cubs spend with their mother.Though undoubtedly there are instances where cougars run into each other (like at a kill, for example when these two females with cubs met) but those encounters seem to be avoided by communication through various olfactory, visual, and auditory signs. Those same signs however can also be clues left by a female to signal a male she is sexually receptive. Researchers believe that urine marks and vocalizing are the primary ways a female advertises her ‘availability’. This vocalization is what is referred to as caterwauling and it is quite an impressive sound. Have a listen:

Audio of Female Cougar in Heat

That would get my attention as well, though I wouldn’t want to necessarily go towards the sound.

Female mountain lions have an estrus of four to twelve days with an average of seven to eight days (data from captive studies). This is a rather short period of time for a male to find a female when you occupy as large of home ranges as they do, so it makes sense to create an obvious ‘hey, I am right here!’ kind of signal. Once they do find each other a breeding pair will stay together for one to sixteen days with one to four days being most typical. After the business is done the male will leave again (I know, I know, typical male behavior….).

So, is this meet up of two mountain lions a mating pair in the pictures below. The mountain lion front and center is our resident female, Artemis (named so after the Greek goddess of the hunt, based on her forehead mark resembling Artemis’s bow — can you tell my girlfriend came up with that one??) but if you look carefully on the right there is another puma, a rather large puma, sitting off to the side.

Mountain Lions in Aptos, California Taken: July 13th, 2011 @ 5:34pm

Mountain Lions in Aptos, California Taken: July 13th, 2011 @ 5:34pm

Mountain Lion Pair in Aptos, California

Mountain Lion Pair in Aptos, California

Mountain Lion Pair in Aptos, California

Mountain Lion Pair in Aptos, California

Is it a male? What do you think? If it is indeed a male and breeding was successful then we may have kittens starting around about October 15th of this year….time will tell!

Bibliography:

Ross, P.I. and M.G. Jalkotzy. 1992. Characteristics of a hunted population of cougars in southwestern Alberta. Journal of Wildlife Managment. 56:417-426

Mehrer, C.F. 1975. Some aspects of reproduction in captive mountain lions Felis concolor, bobcats Lynx rufus, and lynx Lynx canadensis. Ph.D. dissertation, University of North Dakote, Grand Forks.

Rabb, G.B. 1959. Reproductive and vocal behavior in captive mountain lions.

Seidensticker, J.C., M.G. Hornocker, W.V. Wiles, and J.P. Messick. 1973. Mountain Lion social organization in the Idaho Primitive Area. Wildlife Monogram 35: 1-60

Audio Courtesy of Felidae Conservation Fund.

Being a student in the Codger’s Camera Trapping Class

Camera Trap Set under Rock Overhang - Copyright: Chris Wemmer

Camera Trap Set under Rock Overhang – Copyright: Chris Wemmer

Those of you interested in camera traps all have visited or should immediately go to Coder’s Camera Trapping Blog which is written by Chris Wemmer, better known as the Codger or simply Codg. Every year Codg teaches a workshop at the San Francisco State University Sierra Nevada Field Campus about everything having to do about camera trapping wildlife including the history of camera trapping, camera trap sets (what they are and what makes a good set a good set), using attractants, doing biological surveys using camera traps, building your own homebrews, and he even discusses animal psychology in regards to camera traps. How cool is that ?!?!

If you have the smallest interest in using camera traps to photograph wildlife you simply need to take this class!

Besides an immense amount of useful camera trapping knowledge, this workshop taught me some very very important lessons including:

– I need to become a far better naturalist. This is the key to all nature photography success. Chris was a Smithsonian scientist for decades, leading many exciting adventures, but most importantly he was and most definitely still is one of the most knowledgeable naturalists I have ever met. (He would never admit this of course, but trust me, its amazing all the things he knows!)

– I need to experiment more. Placing the camera in ‘obscure’ places seemed to become the theme for our workshop and it was really exciting to do so. Not only are the perspectives unique but the potential for interesting pictures is also quite high.

– oh yeah, the final lesson is to not use credit cards (still good on that account). That’s right you will not only get camera trap lessons but life lessons!

The whole experience is a blast. We had a great group of people participating in the class, people coming from all parts of life including Carl, a photographer who’s career spanned taking picture in the Vietnam War to being the director of photography at the Smithsonian (his Smithsonian photography focused on natural history as well as cultural images). Lissa, is a graduate student at SFSU using camera traps for her thesis (crazy cool, I know), and Audrey who recently graduated from SFSU is getting a lot of field and lab experience before applying to grad schools (her main interest are Coyotes so if you hear of any cool studies with these canines please let me know and I’ll pass it on to her). We even had people from past years show up, including Bill, Sean, and Ken (Ken writes another great blog, which you also need to check out), so you can see that once you take the class you are hooked!

Here are some pictures from the workshop taken by the other participants during the short span of the week we were in the Sierras. To see the images the cameras took that we placed there you will need to check Codger’s blog in about a month (I personally can’t wait!)

The Camera Trapping Gang - Copyright: Chris Wemmer

The Camera Trapping Gang – Copyright: Chris Wemmer

Codg showing us how to make a make-shift post for your camera trap - Copyright: Lissa

Codg showing us how to make a make-shift post for your camera trap – Copyright: Lissa

Ken making set in tree trunk, Carl is enjoying the view :) - Copyright: Lissa

Ken making set in tree trunk, Carl is enjoying the view 🙂 – Copyright: Lissa

The crazy 'obscure views' we hope to get in a month - Copyright: Lissa, a self portrait here

The crazy ‘obscure views’ we hope to get in a month – Copyright: Lissa, a self portrait here

Checking Camera Trap Images back at the Campus - Copyright: Lissa

Checking Camera Trap Images back at the Campus – Copyright: Lissa

Fred - Codg's awesome dog - Copyright: Chris Wemmer

Fred – Codg’s awesome dog – Copyright: Chris Wemmer

Enough said, time for you to head over the Codg’s blog and get fascinatingly lost in camera trapping stories. Thanks to all for making the whole week a blast!

Aptos Mountain Lion Characters

As many of you have noticed I am completely and utterly fascinated by mountain lions, pumas, cougars, catamounts, or what ever you like to call them (did the webpage url and logo give that away???). It has always been my fascination getting pictures of them and seeing them in the wild. Though i have been able to get images, I have never seen one in nature (how is that possible you ask — camera traps!).

As anyone with any obsession, I can’t get enough information about them. Absolutely everything interests me about them including home range size, territoriality, density, prey species, den sites, when cubs leave their mother’s home range, and the list just keeps going on. I am telling you this as a forewarning for future posts under the Project Puma heading that will have anything and everything to do with mountain lions whether that is information or pictures just in case there is someone else as interested in this beautiful cat as I am.

This post is also supposed to serve as an introduction to the cat(s) of the area I camera trap in Aptos near Santa Cruz in the Monterey Bay area. As of right now there are two camera traps out there and I have gotten mountain lion pictures on three different occasions. I am not completely sure whether it is the same cat or different cats so I figured I’d ask you guys. Here are the three pictures followed by close-ups in the same order.

Juvenile Mountain Lion Walking at Night

Taken on June 8th, 2010 at 4:35am

Taken December 25, 2010 at 9:31pm

Taken December 25, 2010 at 9:31pm

Taken March 5th, 2011 at 6:32am

Taken March 5th, 2011 at 6:32am

Juvenile Mountain Lion at Night-Sebastian Kennerknecht - Close-upMountain Lion at Night-Sebastian Kennerknecht-Close upMountain Lion walking over log close up-Sebastian Kennerknecht

Is it all the same cat, I really don’t know. In other cat species researchers use the spotting pattern which is unique to each cat to identify them. For Puma concolor (the scientific name of the mountain lion meaning cat of one color) this isn’t really an option. What I was looking at is the black marking around the mouth, the black whisker markings, and the shape of the ears. Nothing leads me to say that its the same cat or different cats (in the second image, that is a tick in the ear, sadly not something to identify the cat by) — do you see something I am not? One thing for sure is that the second cat is much bulkier than the first, but the images were also captured months apart.

An interesting thing to note are the few faint slightly darker spots on the back leg of the first image, which could give us some clues of its age. Puma kittens are completely spotted loosing these marks as they become older. By ten months, the markings are difficult to see except on the hindquarters. The eyes turn from a light blue as kittens to yellow brown as adults (this change is complete by sixteen months). Young pumas are independent around 15 months (with a range of 10 to 18 months) leaving their mother’s territory and searching for their own. Based on the fact that I had not captured an image of a puma before this individual (for a period of 8 months) and its morphology it leads me to believe that this must be a juvenile looking for its own territory. If the second and third image are of the same cat, then I am glad to know its doing well in its new home!