Camera Trap Tally
The use of camera traps has proven to be a useful way to get an idea of leopard activities in the N’wanetsi Concession. I’ve been able to capture good quality photographs were taken during the survey. There were 20 leopard photographs taken during the study and about 13 individuals. However, because we only have one camera per station it is difficult to say this with confidence.
Cameras were placed in areas of known leopard activities and areas which were perceived as suitable leopard habitats. Care was taken to cover as much area as possible while not compromising the capture probabilities for leopards, i.e. to give each leopard an opportunity of at least one capture.
Due to the sheer size of the N’wanetsi Concession (15,000 hectares), and limited number of camera traps, a considerable amount of land is yet to be sampled in the north of the concession. The results obtained in this study are therefore a partial sample of the leopard population in the area.
After this study, I will now be faced with the humongous task of sampling a 2 million hectare Kruger National Park. To put this in to perspective it is about the size of Wales or about half the Netherlands. As a result more camera traps are required if this mammoth task is to become a reality. Ideally 50 cameras may be sufficient enough to cover the whole Park in a period of 1 year.
Camera Tally
1. Two cameras were broken by elephants. This requires that the steel casings be sprayed with pepper spray and the inside be fitted with some sort of padding to provide shock absorption during elephant encounters. Remedy: pepper spray
Elephants 2: Cameras 0
2. Rhinos did not have an impact on cameras as much as elephants did except that they use them as rubbing posts, which they subsequently manage to bend. Well hidden cameras were not affected by rhinos at all. Remedy: conceal the cameras
Rhinos 0.5: Cameras 1
3. Hyenas were not a factor probably because of the use of steel casings.
Hyena 0: Cameras 1
4. The weather did not affect cameras in a negative way except that during low temperatures battery life was shortened tremendously. As a result if one is surveying during the winter months. The use of rechargeable batteries will in the long run prove to be environmentally and economically friendly. Remedy: wear warm clothes!
Cold temperature 1: Batteries 0: Nakedi 0
5. Rain was also not a factor.
Rain 0: Cameras 1











July 29th, 2008 at 6:13 am
Hi Nakedi
it wuold be very nice to see leopard photos.
Do you think to put two cameras in every location(one in front of other one)?
in this way you can photo both flancks of the single leopard to indentify sex and to obtain exact leopard population for one area.
best wishes
July 29th, 2008 at 8:16 am
Hi Massimo,
That is exactly what I plan to do as soon as we get more cameras. Hopefully I can have 5 X 5 grids with 50 traps, i.e two traps per station placed as you recommend.
Thank you.
July 30th, 2008 at 12:31 pm
Dear Nakedi,
I so much enjoy reading your blogs and I LOVE your wonderful sense of humor. It really makes my day.
Your colleague,
Carol (in Washington, D.C.)
August 1st, 2008 at 2:42 pm
Hi Nakedi
Please will you contact me. I have a publicity and potential fundraising project that I’d like to discuss with you.
Thanks
Sue
082 735-5403
013 745-7854
August 3rd, 2008 at 2:06 am
Thank you Carol.
Regards,
Nakedi
August 5th, 2008 at 11:31 am
Dear Nakedi:
Congratulations on the beginning of your leopard project. I was very excited to learn of it. For the majority of my adult life, I’ve been in the zoo field, and early in my career I worked extensively with big cats, especially leopards. So I envy you! As you know, it’s been over a third of a century since Ted Bailey conducted his landmark study on leopards in the Sabi Sand area. So now it’s time for an update using all the latest technology. I feel privileged to make a donation to your project (I wish it could have been larger), and I eagerly look forward to your entertaining and informative blog entries keeping all of us up to date on your study of the world’s most extraordinary cat. Good luck and Godspeed!
Best regards,
Bill Altimari
Arizona-Sonora Desert Museum
Tucson, Arizona
waltimari@earthlink.net