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The Black-backed Jackal







The black-backed jackals (Canis mesomelas) are slender creatures, weighing 5 to 10 kg. Their sides, head and legs are a sandy tan to reddish gold in colour. Their back has a saddle from head to tip of tail that is black and white mixed hairs.

Often the edges of the saddle are framed in bright rust. They have a thick under coat for cold weather, which they shed in the spring.

These jackal are the most abundant and widespread of the larger carnivores in sub-Saharan Africa.

They are cunning creatures. Their senses are extremely acute and well-developed, especially their senses of hearing and smell. If startled, a jackal will retreat a certain distance and then circle back in a wide arc in order to interpret the scent of the disturbance.

They spent many thousands of years becoming an efficient sub-predator, adapting to and learning from the top predators around them. They tend to be territorial and will become aggressive only to defend the boundaries of their territories.

Black-backed jackals are active both during the day and night. When active, this species is usually out searching/scavenging for food. Normal movement is at a trot; when hunting an individual walks slowly with its ears pricked and alert.

The surviving success of the black backed jackals is greatly due to their highly adaptable nature. Their relatively small size, mobility, and lack of specialised food and habitat requirements mean that they can adapt to environmental change, which has decidedly affected the way they behave.

Consequently, they have expanded their ranges into agricultural areas and urban habitats in some localities, and also increased or maintained stable population sizes while many carnivores of similar size or greater have succumbed to human pressures such as persecution, encroachment, and habitat loss.

Because of their migrations towards agricultural areas; if you mention black-backed jackals to a sheep farmer in South Africa, he would probably reach for his gun.

This would be the worst thing to do. Jackals are normally seen as being wary of humans and are not considered "aggressive" towards larger animals like sheep. But when one of them kills a sheep, farmers take their vengeance by killing all the jackals in sight. The farmer may kill the alpha-male, and this puts in motion an evil cycle during which both the farmer and jackal become worse off.

The black-jackals, like all other jackals, are territorial and work in pairs. Without the alpha-male the territory is fair game and there are plenty of sub-males around, waiting to exploit the gap. Being less established, they may have had to become inventive in their hunting. Maybe they have learned to kill sheep. They'll take over the range and teach other youngsters their skills.

By dominating breeding cycles, alpha-females can keep whole territories unproductive. But the interlopers will generally chase her away once her mate is killed, and without her younger females will begin to breed. There will soon be more pups around, and lots of dumb sheep to feed them on.

This means a higher survival rate, which means more jackals. Pretty soon the farmer is losing considerable amounts of his flock. To him it seems like a vendetta-each generation is harder to trap, harder to poison, harder to fool and harder to kill.





Comments

Have you ever considered Anatolian Guard Dogs as a form of non lethal predator control?

Posted by: Adrienne

I am student and I would like to know the predator behaviour of jackals - how they behave when they see their enemies.

Posted by: nancy

I am considered a " weekend" farmer and have always loved to sit around the fire and listen to the Jackal when they call/ howl. But last week they killed a adult impala ewe and three babies. I do not believe in the use of poison, but need to control them before they wipe out my herd of only 28. Where can I find "Soft traps" ?
Jacques - jacques@jbbtech.co.za

Posted by: Jacques

We have developed and tested an electronic device, which we have already tested in the last 2 months on sheep in a Jackal and Caracul(Rooikat) afflicted area,in the Freestate. The farmers do not let their lambs out at night in this area, due to the jackal feeding on them, and the Caracul killing them.

These lambs of 6 months was kraaled every night, up to the start of our test. Our device safe gaurded 14 x 6 month old lambs 100%, released into the afflicted veld without any loss for over 1 month already.

We however need considerable financing to further improve and to produce our product to more refined prototypes and then to the final product.

This can however be done within 4 to 5 months if we can get immediate contributions.
With a loss of R1,108 millard per year in South Africa in sheep stock alone, as per "Landbou Weekblad" and Rapport not foodloss counted due to predators, nor farmers leaving the stock farming, nor umemployment, etc, etc, surely this can only benefit all, worldwide.

We have registered the patent as well as the uses and components thereof. Please contact me soonest, if you can or know of an institution willing to provide financing for further development of this project, please let me know or have them contact me soonest.

It is causing a delay with production of the product at present, which is so desperately needed in the sheep, goat and even cattle farming, as jackal group are getting bigger and even now becomes a threat to young calves.

Costs will entail testing the product in numerous areas and obviously, extensive travelling, accomodation, material, more instruments, parts,a factory to produce, molds, machines, etc.etc.
This is a totally green product and does not harm any animals, nor environment.

The entity can even negotiate marketing rights with us for a period of time at a feasible price.
Thank you
Carl du Pisani
NDAgric for ATE
082 957 0929
ccdupisanie@gmail.com

Posted by: Carl


I was wondering about the increase and decrease of the black-backed jackal's population over time, and I can't seem to find the information anywhere. Can I have some help?

Posted by: Jozy

I am a biologist and I was recently working for an organisation in South Africa dealing specifically with the most effective method of lynx and jackal control. There is very strong evidence to suggest that it can take an alpha male & female 1-3 years to establish a territory completely and that if they die another does not simply step in, there is competition for some time. This is where the jackals defense mechanism to being out-competed by higher predators comes in.

If a female jackal gives birth at an unusually young age then a higher number of cubs is produced (5-8 cubs depending on who you ask) than if they breed at a more normal age (3-6). The establishment of territory normally delays breeding long enough that the mother is old enough that she produces smaller litters. Only if there is no alpha couple in the area do the younger females breed and produce the larger litters in order to take advantage of the empty territory as soon as possible.

These young are also not as fit as those produced by an alpha couple and so tend to eat whatever they can get, i.e. cattle. The Organization I worked for had managed to persuade a number of farmers to switch to using preventative methods such as guard animals in parallel a complete halt in jackal hunting. There was a higher than normal initial cost but the profits were so high that by the second year they were making higher profits due to lower livestock loss and cheaper yearly outputs.

The great thing about it is that the farmers were then making more money AND getting to stick great fat "environmentally friendly" stickers on all their goods.

Posted by: maro


The main problem that arises with successful and environmentally friendly jackal population control is the fact that (because they are so widespread,) they form an extremely vital role in the workings of the ecosystems across their localities. Poisoning will cause secondary poisoning to other scavengers. Shooting will (in the long term) lead to a rodent explosion. Translocation will cost a fortune and will be virtually useless.

Shooting jackals is about the most effective, humane, and proper method of jackal and caracal control. A poisoned animal is a danger to other scavengers, but an animal that was shot can at least still be of some function to the environment.

There are two sides to every coin, and BOTH conservation and agriculture are vital to South Africa, as eco-tourism and agriculture are vital income sources to our country...

Posted by: Richard


Black Back Jackal are extremly oportunistic - virtually anything that can be eaten is eaten, they will not think twice about catching and eating a Guinea Fowl. I live and work on a nature reserve in the Kalahari and have witnessed a Black Backed Jackal lying in wait at a waterhole and actually launching itself approx. 2 metres into the air, grasping an unfortunate dove, and eating it. Like Felis, it also plucked the bird first. I have no doubt that it would take a Guinea Fowl with equal zeal.

Posted by: Richard

What does a farmer do to prevent jackals from killing lambs and calves?
Most comments express the same views as above but I cannot find any suggestions on how to control jackals and caracals.
I farm on top of the mountain halfway between Machadadorp and Carolina.


Posted by: Alfie

We live in Midrand and yesterday 08 June 2009 while driving around the new development site north of Randjesfontein we saw a Black Backed Jackal, it is a beautiful animal, we also have a lot of guinea fowl in the area, I would like to know if this Jackal is common to the area, and will it feed on the guinea fowl.

Posted by: Robert

During the reign of the Nationalists the Church/Banks/Government triumvirate conspired to maintain a voting bloc by subsidizing 'farms' in the arid wastes that the Khoi Khoin and San (Sonqua) accurately called the 'Karoo'. Great destruction was visited on this biome by trekboers with their 'roers' and skaapboere (sheep farmers) who erected more than a million kilometres of barbed wire fencing preventing what is the Karoo's age old cycle. Boom/bust/migrate for ungulates and birds alike. Most of the Karoo is not farmland; that is the plain truth. Its population has responded to the new dispensation which does not artificially prop up 'farmers' by leaving in increasing numbers. Perhaps there will come a time when the game 'farms' and the reserves will remove their fences freeing almost 2 million hectares of land for the slow recuperation which will allow it to achieve a modicum of resemblance to its pre colonial state. As for the Black Backed Jakkal I am in awe of its ability to survive the 'Total Onslaught' it has experienced. I sympathize with the people who struggle in poverty in the Karoo especially those who have experienced enforced servitude on the land of their ancestors, and the 'farmers' who now struggle on unprofitable 'farms'. Several generations of my fathers family were amongst the 'trekboers' and 'jagters' who shot and wiped out indigenous animals and people in order to take this land. Times have changed. Long live the Karoo.

Posted by: Kris

Hi Quinton, I am a professional hunter and part of my work is predator control. There is no doubt that jackal and caracal numbers are on the increase, but this is not due to hunting alpha pairs as some will have us believe - if the alpha male or female is killed he or she is replaced with 10 to 14 days - without sub dominants taking over the area. I believe this explosion in numbers is due to mainly 3 reasons - one; the increase in game farming operations that have until recently not realized the damage done to small game by over abundant numbers of jackal, and thus let them breed and distribute unchecked, two; the de-population of rural areas, resulting in bigger farms with less farmers controlling predators, more farms lying fallow and more "weekend" farms - perfect breeding grounds for jackal, and three; failed "green" methods of jackal control - like soft trapping (cages), feeding them, maintaining alpha pairs, introducing more of their "natural" prey (like rabbits, springbok etc) which all work for a short while and then exacerbate the problem as the jackal have time, and food, to breed undisturbed.
No one I know wishes to kill them all off - everyone accepts stock losses as an inevitable part of farming and many farmers are even "willing" to give off a few animals per year to feed the jackal - but everyone wants these losses to be reasonable. I have one client who lost 63 lambs and full grown sheep in two weeks before we started hunting there, and another who raised 30 out of 215 boer goat lambs last season. Now I don't care who says what - that is neither reasonable nor acceptable.
The only answer as far as I am concerned is a sustained management program that is not aimed at eradicating the jackal all together but maintaining numbers at such a level that they can peacefully co-exist with the farmer - after all, in most areas they have no other natural enemy than man..
You are welcome to contact me on willem@whitesmoke.co.za

Posted by: Willem

Been a sheep farmer I find your information interesting. I try to farm with nature but when it disturbs me I take action. I have found that a jackal adapts to the method that you use to stop or kill it. The number of jackal have increased in the last couple of years in the area. Older farmers say that this is new to them as they never experienced the problem that we face now.

Posted by: QUINTON WIEHAHN


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