(Spartan Newsroom) Thirty of the non-native leafcutter bees were found in a heavily urbanized part of Chicago. How they got to Chicago is uncertain, however. Their presence was previously confirmed in Michigan, Ohio and Pennsylvania. “Although we do not know the extent of the impact of nonnative bee species, there is evidence they may compete strongly with native bees for nesting resources.”
(Scientific American) To many people, honey bees symbolize prosperity, sustainability and environmentalism. And while they are important for agriculture, honey bees also destabilize natural ecosystems by competing with native bees – some of which are species at risk.
(Twitter, Kathryn A. LeCroy @BeesYall) “My first publication from my PhD is out today: wild native mason bees (#Osmia) are not doing well while exotic mason bees are #thriving in the Mid-Atlantic US.” The original paper.
(Washington State Department of Agriculture) WSDA entomologists successfully eradicated an Asian giant hornet nest by vacuuming the hornets out of the nest on Oct. 24, just two days after finding the nest in a tree on private property in Blaine, Wash. In all, the entomologists with WSDA’s Pest Program removed 98 worker hornets. During the early morning extraction, 85 hornets were vacuumed out of the nest and another 13 live hornets were collected with a net while observing the nest.
(ScienceDaily, University of California, Davis) Since the 1950s, ‘Africanized’ honeybees have spread north and south across the Americas until apparently coming to a halt in California and northern Argentina. Now genome sequencing of hundreds of bees from the northern and southern limits shows a gradual decline in African ancestry across hundreds of miles, rather than an abrupt shift.
(Colorado State University) When southern Rocky Mountain forests are viewed from a distance these days, it may not look like much is left. Large swaths of dead, standing Engelmann spruce trees tell the tale of a severe regional spruce beetle epidemic in its waning stages. But new research suggests that spruce beetle outbreaks may help create habitat for pollinator communities in wilderness settings. The research team found significant increases in floral abundance and wild bee diversity in outbreak-affected forests, compared to similar, undisturbed forest.
(ScienceNews) Washington state officials are racing to find and kill ‘murder hornets’ before they can spread. Efforts are under way to catch a live hornet, attach a radio tag and track it back to a nest. The plan is to destroy the nest, hopefully before more hornets can start nests of their own hatch.
(EurekAlert, University College of London) The study predicts the number of non-native plant and animal species – particularly insects, arthropods and birds – will increase by 36% worldwide by 2050, compared to 2005 levels.