Sunday, January 4, 2015

January welcomes a new year

Given the fluctuation in temperatures and cloudy days, the canyon is already showing signs of spring although we are still facing what will probably be our coldest winter weather. A walk  along the old Bee Cave roadbed reveals two areas of water retention. On the eastern canyon wall (west facing) water has collected from runoff providing a rich soil bed that may help with wild flower development. Erosion is an issue in this area and we hope to work on this challenge in the spring. The north facing canyon wall (below the library building) is where we believe the head waters of Cuernavaca Creek may be located - there is a rich source of plant life in this area as the underground spring is flowing to the surface.

There is another creature that appears to be a bit confused about the season. The Earthstar Fungus (Astraeus hygrometricus) is an ectomycorrhizal fungus that responds to the moisture in the environment. Typically we see these in wet seasons, spring and fall. As the fungus matures, the outer layer opens to reveal a small puffball shaped fungus that is framed by pointed 'star rays.' In dry conditions the rays close to protect the spores inside, a process that can be repeated several times. When the puffball is exposed, falling raining then helps to release the spores. We've had plenty of moisture so sure enough, we have had plenty of spring like days so these earthstars appeared just below the bottom steps of the canyon entrance.