Botswana’s zebra migrations – Africa Geographic

Botswana’s zebra migrations - Africa Geographic

Botswana’s zebra migrations – Africa Geographic

East Africa’s Great Migration is probably essentially the most well-known massive mammal migration on the planet, and for good cause, however few folks understand that Africa is dwelling to a number of smaller mammal migrations which might be equally spectacular in their very own approach. Two such migrations are these of the zebras in Botswana certainly one of which is the longest mammal migration in Africa. These migrations provide astounding (and sometimes much less crowded) wildlife sightings however, extra importantly, they’re testomony to not solely the resilience of nature within the face of human interference however to the genetically programmed intuition emigrate.

Within the late 1960s, Botswana entered into an settlement with the European Union to supply cattle for meals functions, however whereas this deal might have been profitable on the time, it got here with stringent circumstances. Considered one of these was that Botswana wanted to take measures to keep away from the transmission of foot-and-mouth illness between wild animals and home cattle. Thus, a collection of veterinary fences had been erected that separated swathes of land and reduce off the pre-existing migratory routes. When these fences had been moved within the mid-2000s, researchers and conservationists had been astounded to see a portion of the zebra herds start to comply with historical migratory patterns: the Chobe-Nxai Pan and Okavango-Makgadikgadi migratory routes.

The Chobe-Nxai Pan zebra migration: longest mammal migration in Africa

Whereas there was loads of anecdotal proof as to the seasonal motion of assorted animals in Botswana, it was solely in 2012 that researchers confirmed by way of the usage of monitoring collars that the zebras had been finishing an unexpectedly lengthy return journey of over 1,000km every year. Up till then, the zebras’ route by way of inaccessible elements of Botswana, by way of the Kavango-Zambezi Transfrontier Conservation Space, had saved their actions largely hidden.

The herds spend the harshest of the dry months across the Chobe River flood plains from June till early November, earlier than massing in December, when over 20,000 zebras start their journey southwards. Most journey in an virtually straight line earlier than arriving in Nxai Pan Nationwide Park in lower than a month, whereas others take much less direct routes typically stopping at Seloko Plain earlier than becoming a member of the remaining a couple of weeks later.

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These herds disperse all through Nxai Pan Nationwide Park (a part of the higher Makgadikgadi Pan system) and stay there from December, January and February earlier than making their return to the north. This return path to the Chobe River and north into Namibia is much less direct and extra circuitous, with some zebra travelling over 800km earlier than being compelled to return to extra everlasting water techniques such because the Chobe River.

Okavango-Makgadikgadi zebra migration

Considerably smaller than the Chobe-Nxai Pan migration, for now, this route sees the motion of round 15,000 zebras from the Okavango Delta to the Makgadikgadi Pans Nationwide Park originally of the moist season, the place they continue to be till the dry season begins.

Round March, the zebras start to mass on the western fringe of Makgadikgadi Pans Nationwide Park earlier than setting off on their 250km return route previous Maun and into the south-eastern areas of the Okavango Delta, together with Moremi Sport Reserve. There they continue to be to make the most of the Delta flood throughout the dry season.

The place and when to see it?

Migrations are, by their very nature, seasonal and most are pushed by the necessity for entry to meals and water. The 2 zebra migrations in Botswana are not any totally different, motivated by the interaction between the moist and dry seasons, which in Botswana run from round November to March and April to October respectively. In the course of the moist season, each teams of zebra centre across the higher Makgadikgadi Pan system, which is dry, dusty and inhospitable for a lot of the yr till the transient months throughout the wet season when it transforms right into a lush inexperienced wildlife haven.

One important profit to viewing each zebra migrations is that they’re most dramatic throughout the low tourism season in Botswana, that means decrease lodge charges and fewer safari autos. That mentioned, the wet season could make driving tough if not often unimaginable. January to April are the most effective months to expertise the migration within the Makgadikgadi Pans and Nxai Pan nationwide parks. Particularly, the Boteti River on the western fringe of Makgadikgadi Pans Nationwide Park supplies one of many solely everlasting water sources within the space for thirsty zebras upon their return.

The longer term

As soon as, mass massive mammal migrations occurred all through southern Africa on an incredible scale, together with the migration of an estimated half one million wildebeest by way of Botswana’s Central Kalahari Sport Reserve. These migrations have all however been eradicated, primarily as a result of erection of cattle / veterinary fences blocking the unique routes. The revival of the zebra migrations in Botswana has led researchers and conservationists to hope that ancestral migratory routes could possibly be recovered if given the chance, not simply in Botswana however all through the world.

It doesn’t require a leap of logic to grasp that migrations can permit massive mammal numbers to extend past what they could in the event that they had been resident in an space by making certain that sources will not be over-utilized (by over-grazing for instance). It’s too quickly to inform what influence these zebra migrations can have on zebra numbers, however for these lucky sufficient to witness them shifting en-mass, there is no such thing as a selection however to marvel at nature’s sheer genetic willpower and resilience.

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