The video is by mmjiskoot in the Netherlands.
30 May 2016 – In Wageningen a large colony has been found of Tapinoma nigerrimum ants, a species not previously seen in our country …
The colony of Tapinoma nigerrimum in Wageningen is located under a sidewalk and the adjacent walls of gardens. The species has all the characteristics which other invasive ants have. They are resistant to disruption and may thereby live close to humans, which may lead to towage to other areas.
In addition, there are a lot of egg-laying queens that can live together in a colony, and there is no aggression among workers who have descended from several queens. This enables them to achieve significant local densities, creating a super colony. The colony is found over a length of more than 120 meters!
This 26 April 2016 shows an ant, strong enough to transport a big prey.
MarijkeS from the Netherlands made this video.
This video from the USA is called Cornfield Ants, Lasius alienus, Social Behavior and Dispersal.
Translated from Stichting Bargerveen in the Netherlands:
Jan 28, 2016 – In the Netherlands cornfield ants are very rare inhabitants of calcareous grasslands. Last summer, the species was found by employees of Foundation Bargerveen on the Sint-Pietersberg [Mount Saint Peter; mountain near Maastricht]. Is the modification of vegetation by mowing and grazing here now bearing fruit?
The cornfield ant (Lasius alienus) is a very rare species in South Limburg. Until 2004, the species was only known from the Bemelerberg hill. During research into the effects of grazing in the Popelmondedal valley, the southern slope of Mount St. Peter in Maastricht in 2015 by Stichting Bargerveen effects on ants were also examined. Great was the surprise when during the identifications of the catches this winter several cornfield ants were found. This species was totally absent in the intensive monitoring of the Popelmondedal in 2006 and except for an unconfirmed catch from 2012 this typical calcareous grassland species had never been previously reported from Mount St. Peter.
From Smithsonian Science News in the USA:
New Montana ant species emerge from 46-million-year-old rock
By John Barrat
8 January 2016
She was a stunning brown queen; drowned some 46 million years ago in a shallow lake in Montana. Her remains, recently recovered along the Flathead River, consist of a shadowy silhouette pressed upon a piece of reddish brown shale. Named Crematogaster aurora, this winged female ant is the only known member of her species. Her discovery is raising eyebrows among scientists who study ants.
“Molecular data from living ants suggested that the genus Crematogaster had evolved more recently,” explains Dale Greenwalt, a paleontologist at the Smithsonian’s National Museum of Natural History. “Now, this 46-million-year-old specimen is requiring scientists to completely rethink when this genus and its related forms appeared. It is obvious it has been around much longer than previously calculated.”
Crematogaster aurora is one of 12 new prehistoric ant species discovered in Kishenehn Formation shale in northwestern Montana by Greenwalt. They are newly described and named in a paper in the journal Sociobiology by Greenwalt and ant expert J.S. LaPolla of Towson University in Maryland. All 12 represent species new to science, known only from the locality in Montana. All are long extinct yet some represent genera that still exist.
These Kishenehn fossils are from the middle Eocene (46 million years ago), a period of great interest for understanding the “evolution of ants and in particular, their march to terrestrial dominance,” the researchers say. It was during the Eocene that many of today’s ecologically dominant and species rich ant families emerged.
Factors that led to this diversification included the evolution and appearance of many new species of flowering plants, as well as high temperatures—in the early Eocene it was as much as 15 degrees C. warmer worldwide than it is today. “A lot of people also think the meteorite that caused the disappearance of the dinosaurs and ended the Cretaceous kind of reset the table for a lot of new things to evolve and diversify,” Greenwalt adds. “This maybe what happened with the ants.”
While LaPolla and Greenwalt name 12 new fossil species in their paper, the specimens are from a much larger pool of 249 ant fossils examined for the study. The majority of the ants discovered are alates, “which are simply winged forms of the ants,” Greenwalt says. “Workers and soldiers don’t have wings and pretty much stayed on land.”
The alates were able to fly over the lake that formed the Kishenehn shale and many of them fell into the water and ended up on the bottom. Almost all of the fossil ants in the Kishenehn are winged, many of them queens.
By comparing Kishenehn ant species and genera with other North American Eocene fossil deposits such as the Green River Deposit along the Green River in Colorado, Wyoming, and Utah (48 million years old) and the Florissant Formation in Colorado (34 million years old) scientists can gradually piece together the abundance and distribution of North American ants during this period.
What can the Eocene epoch teach us about today’s global warming? Here.
This video shows two worker red wood ants.
One of them licks fluid from between the moss and transfers it to the other ant.
Danielle Hagenbeek from the Netherlands made this video.
Red wood ants in spring: here.
Ants have been domesticating cultivated crops for 50 million years, research reveals: here.
This video from the Netherlands says about itself (translated):
September 11 2015
Swarming ants in an anthill and busy city life are often compared. But in Rotterdam they made a very special example of that. Designer Lucas Zoutendijk of Bureau 1:1 made for the Architecture Day an ant city of sand in the shape of the map of Rotterdam. 1300 ants have been living there since some weeks ago. The Spanish ants immediately began construction of their ideal city.