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Driver ants

Dorylus sp.

Photo by dotun55
Published on Project Noah
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Field Notes

Description:

Black soldier ants running across a muddy path early in the morning. It is in the harmattan/dry season and due to extreme temperatures or unfavorable weather conditions, the ants are forced to migrate carry all their foods, eggs and larva. The stronger ants with cutting mouth parts come together to form a thin protective canopy over the workers transporting the goods that is valuable to bigger animals that could pose as predators during the exodus. And that is why the trail is darker than usual.

Habitat:

Secondary forests, bushy areas

Species ID Suggestions

Comments (45)

Additional photo: first trail I captured >> https://www.facebook.com/photo.php?fbid=616663288387053&set=pcb.616663871720328&type=1&theater Happy 2014!!!
Congratulations, that's quite a sight!
Very nice spotting - congratulations!
Thank you! Wishing us all a Happy New Year, full of new adventures and greater findings : )
Congratulations and thank you very much for sharing such interesting series.
Congratulations dotun for SOTD for these wonderful pictures! I am very happy for you.
Congratulations! Wow, Great Pics.
Congrats dotun55! Amazing series!
Congratulations on Spotting of the Day! This is a fascinating and informative series that really shows us how interesting these ants are. Thanks for all the fantastic contributions and we look forward to seeing many, many more! Facebook: https://www.facebook.com/photo.php?fbid=10153654033375603&set=a.10150595289465603.674700.10150120463815603&type=1 Twitter: https://twitter.com/projectnoah/status/417150285971087360
Oh I'll take a look. This is as close as it gets >> https://www.facebook.com/photo.php?fbid=615047081882007&set=a.540710832648966.1073741825.100001301623602&type=1&theater Soldiers are poised to grab anything that gets so close with those pincers of theirs. There is a high risk of getting bitten. And as you know, I'm not paid for such manner of risk : ) As for the use of ants heads for suturing wounds, there is a classical example in Mel Gibson's Apocalypto. Ingenious!
Great spotting ... really interesting process to see!
For Nigeria, Antweb lists Dorylus emeryi (http://www.antweb.org/description.do?rank=species&name=emeryi&genus=Dorylus) and Dorylus nigricans (http://www.antweb.org/description.do?rank=species&name=nigricans&genus=Dorylus).
You might want to change the title from Army Ants to Driver Ants/Siafu. Do you also speak Swahili? It would be so amazing to see this. I've only ever seen the documentaries for these. I did get to see Army Ants in Costa Rica though and that was just fascinating.
Here is a link to www.antweb.org, a really useful site for finding an ant. This gives 61 species with 68 subspecies of Dorylus! Amazing. Next to the Genus Dorylus, choose "images" and you can select head, lateral or dorsal view of all the species that there are pictures for. Maybe with the head views, you can see which species of Driver Ant you have here. Do you have any close up of the soldiers? Too scary to get close? They look terrifying. Have you ever seen anyone use the heads for suturing a wound? http://www.antweb.org/description.do?subfamily=dorylinae&genus=dorylus&name=dorylus&rank=genus&project=worldants.
http://en.wikipedia.org/wiki/Driver_ants
@Lauren. I think that it is more likely that the first ants had blazed the trail, removing obstacles (like small movable gravels), making for an easy transit for the workers, and the rest which are not as strong as the big-headed soldiers. But I'll look closely at subsequent trails I may encounter in future to confirm this. As said earlier, this is a wild and regularly occurring scene in this part. @EnvUnlimited. Thanks for the insight. Must see Hellstrom Chronicle any time soon. Another movie that portrays an extreme case of these highly social critters is Indiana Jones and the Kingdom of the Crystal Skull. Interestingly, the hyperlink 'giant ants' in the movie synopsis on Wikipedia leads to the page for driver ants (saifu), which I think has the nearest or best description for the images above.
Amazing thing to see! The soldiers guarding their trail are impressive and many are facing outwards ready to defend. The trail is sunken with lots of little gravel pieces along the sides, do they excavate all this gravel to make a more protective trail? Do the first workers do that or they all keep doing it as they move along?
Another INCREDIBLE Ant spotting!! Another WOW!! :)
Best thing I've seen all day. You captured this scene beautifully!
This is something you might take for granted if you lived in this part of the world- sub-Saharan Africa/tropics. It is a common sight in unspoiled areas, areas with some or all of natural vegetation still intact. Such black ants are often encountered when they run across pedestrian paths to and from the bushes (as in the photo), or on rare occasions when the cavalry makes the front of a building a convenient alternative route. If you by any chance break the file, make sure you don't hang around their search radius or it' your funeral. The soldiers react quickly and aggressively to any interference of any sort. They are skilled at locating the vulnerable parts of the body, that is getting past your shoe or clothing down to your skin if you're a human scape goat. And the case is made even worse when you're not aware of their entrance. They are formidable; they can die biting. Memories of how you danced to their tune would live with you forever :o) Trust me! I'm the one telling the tale today. Beware, you might be next. Compliments of the Season!!!
Impressive!! Gorgeous shot, by the way. I think it's an very unique moment. Thanks so much for sharing, dotun55. Keep posting!

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