According to the IUCN's Invasive Species Specialist Group, the plant has recently become "established and invasive in Europe", affecting parts of Italy and Switzerland.
Many years ago Mr. Dunbar famously noticed that there is a tight correlation between the size of a primate's brain and the size of the social group its species generally forms.
WSJ: The Social Network and the Dunbar Number | Mind & Matter
But when it came to sharks, the president said he was sure that the sanctuary is backed by science - sharks are threatened as a group of species, and sanctuaries can help.
Whales and dolphins have complex cultures, too, which vary from group to group within a species.
They identified a previously unrecorded species of Candidatus, a group of disease-causing bacteria that infect many sorts of plant.
Scientists identified nearly 60 species of amphibians, 20 reptiles and 120 species of birds, the group said in a prepared statement.
It is thought to belong to a new species of pliosaur - a group of large, short-necked reptiles that lived at the time of the dinosaurs.
"We're members of a very big campaigning group called the species survival network and we do believe we have a very wide consensus among groups on this particular issue, " he said.
There had been concern that the re-establishment of a predator called the Nassau grouper would lead to a dramatic reduction in the population of parrotfish a group of herbivorous species that feast on seaweed that would otherwise overwhelm the coral.
Although the wall texts group the work by species, in practice the installation falls into two sections: The first explores symbolism in avian imagery, while the second celebrates birds in an array of mediums and styles.
So far, he says, the group has identified 112 distinct species trapped in the nets.
The botanists used DNA analysis to delve into the ancestry of the Rafflesiaceae, a group that comprises some 50 individual species.
BBC: NEWS | Science/Nature | Family found for gigantic flowers
The best that evolutionary biologists can do is usually to point to groups of species that have plainly diversified recently, usually on a group of islands.
WSJ: Matt Ridley on the Possible Formation of a Species | Mind & Matter
The status of the hen harrier in England is now markedly worse than it was five years ago and it may cease to be a breeding species if the current level of persecution continues, the group says.
One group of researchers has thus decided to cross the species barrier and test its models on another highly social mammal, the dolphin.
Now scientists have described a group of continental, rather than island, bird species that seem to be in the process of forming new species.
WSJ: Matt Ridley on the Possible Formation of a Species | Mind & Matter
Placental mammals - as opposed to the kind that lay eggs, such as the platypus, or carry young in pouches, such as the kangaroo - are an extraordinarily diverse group of animals with more than 5, 000 species today.
An international group of researchers said at the end of last year that 29% of species have suffered a collapse in population because of overfishing.
The Obama administration and a group called WildEarth Guardians last week settled a long-running fight over endangered species that could have far-reaching environmental and economic consequences.
FORBES: Endangered Species Accord Calls a Truce In The Wildlife Wars
"We are proud of this new discovery as it has added another endemic species in Indonesia, " said Yoppy Hidayanto, coordinator of Burung Indonesia, a bird conservation group in Bogor, West Java.
The group has found that where the Maya nut tree disappears, 50 to 80 percent of local species are wiped out in six months to a year.
There may even be an entirely new species of web-footed crocodile, according to a hunter-turned-conservation-officer employed by the group Cat Action Treasury.
And since 1937, Ducks Unlimited, a hunting conservation group, has protected 60 million acres of wetlands critical habitat for ducks and 900 other wildlife species.
As patterns of diversity between one taxonomic group and another do not always align well with each other, conservation priorities may well overemphasise protecting familiar species.
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