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Category: Americas and Eurasia and Africa

Grand sands (#33 in series: large antelope, huge dunes)

 

 

 

 

Oryx gazella – the gemsbok, aka “African oryx”/ “South African oryx” – is the largest oryx species.

Namibia’s emblematic mammal is prodigiously well-adapted to a very demanding environment.

Gemsbok would probably handsomely defeat the “ship of the desert” in any global championship for “most efficient/ hardiest mammal in sandy places where rain hardly ever falls, and where no “permanent” rivers flow”.

The Namib Desert’s “sand sea” – most especially, around Sossusvlei – has some of “our” planet’s most astonishing landscapes.

More than a few of its dunes dwarf even the largest local inhabitants!

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Grand sands (#32 in series: wind-shifted, wind-sorted)

 

The multi-hued appearance of these dunes – just a few kilometres inland from the Atlantic Ocean – shows that their composition is diverse, not overwhelmingly silica-dominant.

Silica does not rust; iron does.

Rust is clearly evident in some of the pictured sands, albeit less spectacularly so than in much of Australia’s “Red Centre”…and in the Namib too, further inland.

Most of the sands in the Namib Desert’s dunes are not of “local” origin.

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Grand sands (#31 in series: being green, where that “should” be impossible)

 

The Namib’s plants are as astonishing as its animals.

We were just a few kilometres from the Atlantic Ocean, near Swakopmund, when I took this post’s photos, one November mid-afternoon.

Swakopmund’s “round figure” rainfall average for the month of November: 1 mm.

November is “infinitely” wetter than October!

Average October rainfall in Swakopmund: 0 mm.

Average total for the calendar year’s entire final quarter: 2 mm.

Q:  how on earth can a very shallow-rooted, Namib-endemic shrub – one that often grows on the upper part of a dune – manage to survive? (and be a useful “emergency water source” for desert animals – parched humans included)

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Grand sands (#30 in series: thermal “dancer”/ sand-diver)

 

 


Meroles anchietae 
– the shovel-snouted lizard – is endemic to the Namib Desert’s dunes.

Its signature behaviours – “dancing” atop the sand’s surface on a hot day, and diving into the cooler sand, below – are adaptations developed in order to survive an imminent, lethal threat.

As illustrated in #27 of this series, we were lucky enough to witness its astonishingly speedy sand-diving – a feat in which the key factor is its “shovel”.

Just inland from Swakopmund, and only a few kilometres from the Atlantic Ocean, the afternoon of 19 November 2022 was cool.

Accordingly, whilst our hero did deploy his “shovel” snout in order to escape predators/us, he did not need to dance!

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Grand sands (#29 in series: Namibia’s loveliest lizard)

 


Palmatogecko rangei
  (aka Pachydactylus rangei) is petite – less than 7cm long.

Endemic to the Namib desert, this dune-dwelling hunter of small invertebrates is commonly known as the “Namib sand gecko”, or the (Namib) “web-footed gecko”

Its skin is almost translucent, but exquisitely coloured.

Relative to its body, its feet are very big; its eyes are HUGE.

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Grand sands (#28 in series: Namib Desert “lizard specialist”)

 

This post stars the very same species – and, I think, the same individual – as did the featured image in this series’ immediately-preceding chapter.

I took this post’s photo at 3.56 pm on 19 November 2022.

Q: why was this usually-stealthy snake out in the open, on a relatively rare patch of rockier/more gravelly ground?

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Grand sands (#26 in series: living on the edge – Swakopmund)

 

Circa 75,000 members of our own species live in Swakopmund, and a great many more visit, as tourists.

Below, you are looking at its beachfront, as viewed from a hotel window at 7. 20 am on 20 November 2022.

Namibia’s third largest city – and its one “seaside resort” – is sandwiched between the chilly, easternmost waters of the Atlantic Ocean and the westernmost dunes of the Namib Desert’s “sand sea”, whence I took the featured image at 5. 11 pm on the previous day.

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Grand sands (#25 in series: DIY housing, Thar Desert)

 

 

As last updated on 02 January 2025, on www.WA.gov.au:

If you are thinking about owner-building your own home or small commercial building, you will need to have been granted owner-builder approval from the Building Services Board before you can be granted a building permit from your local government authority.

Indian bureaucracy is globally-notorious, but in at least some parts of Rajasthan, the “DIY housing sector” is subject to very much less “regulation” than is Western Australia’s.

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Grand sands (#24 in series: Thar Desert’s underground “celebrity”)

 

The mammalian world’s biggest family – the rodents – includes six genera which (collectively) contain at least 110 living species of “gerbil”

Some of them – on their own turf, at least – are more commonly known as “jirds”.

Jirds are members of the genus Meriones.

As is generally true of gerbils, jirds live in deserts, and other “arid” or “semi-arid” places.

Unsurprisingly, most are nocturnal; but not the Indian desert jird, Meriones hurrianae.

One Indian blogger has described this post’s highly atypical hero as the tiny musketeer of Rajasthan’s Thar Desert.

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