- October 29, 2012 at 3:52 pm
It’s nearing the end of October, the leaves are falling, and temperatures are dropping. That means many animals are spending a final few days in the sun and getting ready for hibernation. Snakes are no exception.
- October 22, 2012 at 3:58 pm
What do leaves have to do with the seasons? Most people mark the coming of winter by the time that trees become bare and leaves litter the ground. The trees themselves, however, begin their winter preparations long before we humans do.
- October 16, 2012 at 9:00 am
Fifth week means it’s crunch time at Carleton, but the stress level of students isn’t the only thing that is peaking right now.
- October 9, 2012 at 9:48 am
Fall may be my favorite time of year, and October my favorite month.
- October 1, 2012 at 5:11 pm
Weeks have passed since the beginning of fall term, and the average Carl has long since settled into their fall routine. The Arboretum, on the other hand, is a vision of constant change.
- September 24, 2012 at 4:02 pm
One important measure of restoration progress is the presence of indicator species – species that require specific conditions only associated with high-quality habitat – and this summer, two important indicator species were observed in the Arb.
- May 29, 2012 at 11:29 am
I've been a student naturalist since my freshman year. I didn't realize that I was signing up to write the last Arb notes of the term several weeks ago when I picked this date. It seems fitting, though, that I, rather than one of the younger naturalists, should get to have the last word of the year. It also gives me an opportunity to reflect on how the Arb, and my perceptions of the Arb, have changed over the last four years.
- May 17, 2012 at 12:56 pm
On a bright and surprisingly warm Saturday morning, 19 intrepid adventurers gathered at the Arb Office at 6am to partake in the decade-long tradition of the Annual Arboretum Bird Count. Initiated in 2000, this rite seeks to record the populations of the long-term and the migratory birds that frequent the Arb. At 17 spots throughout the Arb, the volunteers recorded the species they saw or heard in a designated 2-minute span. Over the years, the number of species recorded has ranged from 58 to 73 species.
- May 15, 2012 at 11:08 am
Last week Arb Naturalists had the pleasure of walking Spring Creek in search of river mussels. If you've only ever encountered the sea dwelling mussels found on your local menu, you might consider taking to the rivers in search of these magnificent creatures. It might surprise you but these animals have some adaptations as innovative as some of our own.
- May 3, 2012 at 3:10 pm
Last week, Arb Manager Matt Elbert found a rare Wood Turtle basking on a sandbar in the Lower Arb. These reclusive turtles are observed only once or twice each year in the Arb and are considered a “threatened” species in Minnesota. As its scientific name, Glyptemys insculpta, implies, Wood Turtles have ornately patterned shells that resemble wooden engravings and distinguish them from the more common Painted Turtles also found in the Arb.
- May 1, 2012 at 11:13 am
Mreakkk mreakkk. If you wander near Kettle Hole Marsh, it is nearly impossible to avoid the enveloping the racket of the chorus frogs. The western chorus frog is the smallest frog species in Minnesota, but you wouldn’t know that from their boisterous noise-making! They aren’t the only frogs in the Arb, there are gray tree frogs, Cope’s grey tree frogs, bullfrogs, green frogs, and the northern leopard frogs.
- April 24, 2012 at 12:36 pm
While running, jogging, or walking through the pine plantation in the northern tip of the arb, one might not realize the obstacle it poses to restoration. Covering 30 acres, the dense pine forest holds quite a bit of wood. The pines aren’t native to this part of Minnesota. They occupy land that should bear oak forests or prairie. They shade out native plants, they spread pine trees to neighboring savannas, and prevent managers from balancing these nearby plots with prescribed burns. They’re also starting to die. As the pine population slowly turns to a stand of dry snags the risk of them snapping in a windstorm increases, making upkeep more time consuming and costly. In short it's time for the pines to go.