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Sunday, June 23, 2024

Sarah Bishop


Zebra mussels found in Lake Mendota

Lake Mendota had once been the home for swimming, sailing and fishing, among many other recreational and scenic activities. But since the discovery of zebra mussels in the lake by a limnology lab last fall, the lake’s environment has shifted, resulting in changed food sources for fish and less attractive experiences for water activities at the Memorial Union terrace on a summer day. Throughout the summer following the zebra mussel discovery, Lake Mendota had become completely invaded by the mussels, with amounts ranging from 10 zebra mussels per square meter to 60,000 in some areas of the lake, which has created an imbalanced ecosystem, resulting in many future changes to the lake’s ecology and aesthetics.


Rare bees find home at UW Arboretum

The University of Wisconsin-Madison Arboretum has provided a natural home, full of rich resources and desirable terrain for the rusty-patched bumblebee, that was discovered at the Arboretum in 2010 and is now proposed for the Endangered Species List by the U.S. Fish and Wildlife Service. The U.S. Fish and Wildlife Service has been focusing their resources at the Arboretum to study the rusty-patched bumblebee, which has become a rarity in places it was once abundant. “We didn’t know the rusty-patched bumblebee was here, originally,” Susan Carpenter, the native plant gardener at the UW-Madison Arboretum, said.


Chemical composition of oceans helps scientists understand ancient life

New research on the chemical composition of the ocean has shown that, 3.26 billion years ago, the continents were actually above water. This pieces together several other studies into a cohesive, big-picture idea of how the world once looked, according to Aaron Satkoski and his team of researchers who studied the chemical composition of erosion in the ocean back in 2013 in the Barite Valley, near Barberton, South Africa.

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