Roaring Fork Valley Phenology | August 12, 2013

More Abundance!

Chokecherry, Prunus virginiana are beginning to ripen this week. This picture was taken August 10 on the Rio Grande trail near Aspen. The incredible flower display of late June has transformed into many sweet, yet often astringent (bitter/puckery) berries. Chokecherry attracts birds and mammals that eat the berries then pass the seeds through their digestive tract, depositing the seeds at new sites for germination. Viable seeds can be moved long distances this way.

Summer Bugs!

Insects are some of the most diverse, abundant and ecologically important organisms on the planet.  It may not surprise you that insects can be found just about anywhere, but the quantities in which they appear will probably astound you.

Roaring Fork Valley Phenology | August 5, 2013

Fireweed, Chamerion angustifolium is yet another wildflower that is blooming in abundance this year. They are in full flower this week and will begin to go to seed in the next couple of weeks.  

A bee getting nectar from a flower like fireweed will fly in low and move up the the flower stalk (raceme), visiting the low blooms first and then the higher ones.  I learned about the advantages of this upward nectar collecting to bees and flowers last week in the ACES pollination class taught by Rocky Mountain Biological Lab researcher Dr. Rick Williams. 

Morning Birding Species List | July 30, 2013

House wren - birding aspen

Throughout the summer months ACES offers weekly Morning Birding classes at their Hallam Lake site in Aspen and Rock Bottom Ranch site in Basalt. Class outings venture to local birding hotspots and the birds never fail to impress. Take a look at the below species list and notes from one of the recent classes in Aspen and register today for upcoming birding classes, which run through September!

Rock Bottom Ranch Camp

Posted in Kids' Corner

No more classrooms! No more grades! It’s summertime at Rock Bottom Ranch!

For the majority of the year, ACES educators work within Colorado’s state science standards to create programming that supports science curriculum in elementary schools. Field programs are focused, orderly, and run like clockwork in order to get students back on the bus at the pre-arranged time. Although educators love to allow students to freely explore, there is rarely time for that luxury.

Roaring Fork Valley Phenology | July 29, 2013

What a difference some rain makes! After a July of almost no rain, the Aspen area hit the jackpot Saturday night and Sunday. The first photo photo was taken Friday afternoon and the second on Sunday afternoon from the Rio Grande trail looking up Hunter Creek. Hunter Creek has been well below average flow for the second year in a row. See the graph here

Roaring Fork Valley Phenology | July 22, 2013

You may know how to identify the “flat, friendly, fragrant” fir, but have you seen their cones? Pictured here are maturing subalpine fir (Abies lasiocarpa) cones taken July 18 on Aspen Mountain. Fir cones are rarely seen because after they mature, the scales and seeds fall apart while high on the tree. This is unlike typical spruce and pine cones that fall off the tree intact. The only time we see fir cones on the ground is when they have been snipped off the tree by squirrels who stash them for winter.

A Wildflower Walk with Janis Huggins

After three years at ACES, I finally had the great pleasure of participating in a Naturalist Field School Wildflower Walk with the incomparable Janis Huggins. Janis is the author of Wild at Heart, the definitive, user-friendly natural history guide for Snowmass, Aspen, and the Maroon Bells Wilderness.

Roaring Fork Valley Phenology | July 8, 2013

Strawberries are just beginning to ripen above 9,000 feet. Judging from the abundant flowers early in June, this could be an amazing berry season. Have you seen the ripening fruits on the serviceberry and chokecherry lately? Fledgling birds and fawns are out, and so are butterflies: mating and laying eggs. 

A Successful Raptor Fair!

Posted in Bulletin Board
raptor fair, flight demonstration, aspen activities

On Friday July 5th, ACES hosted its first ever Raptor Fair. The event featured charismatic birds of prey including our resident Golden Eagle and Great Horned Owl, as well as visiting Screech Owl, Gyrfalcon, Harris Hawk, Red-tailed Hawk, and Barbary Falcon. The visiting birds came with the raptor education organization, Nature’s Educators.