Shaver's Lake Preservation Association
Active Stewardship Since 1976
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The Skating Trail is Closed Due to Drifting Snow   

This is still a good time to cut the cattails and drown them if our winter continues.  We have found that 3 months submerged without air is enough to stunt their growth.

​Please remember that the areas around an active muscrat house are not as solid as open ice, nor around clumps of cattails due to the heat generated from plant decomposition!  
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_____________________
 Dissolved Oxygen Level:  

0 (Zero) as of 2/6/21
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Lake Vegetation Mgmt Plan 


 We worked closely with Lake Restoration and the DNR to get our General Permit renewed for 5 years!  APM's are in process as well.  We can start May 13th this year so we can try to get ahead of the early growing season.  This is a first for our program as well.

 

Picture
ON MUSCRATS:

https://northernwoodlands.org/outside_story/article/in_homes_on_ice_muskrats_endure_the_season

Humans use gas-powered augers to drill holes in the ice; muskrats use their teeth. They gnaw four- to five-inch diameter holes and push marsh plants up through the ice to form their mound shacks.  Then they chew out the interior to create a place to eat, rest and catch a breath of air after swimming under the ice.  But just as human anglers have regular homes, muskrats have their own year-around homes. In river ecosystems they often live in burrowed bank dens, but in marshes their more-permanent lodges are constructed of plants, such as cattails, and mud. These houses rest on a firm base—the marsh bottom. Muskrats build these lodges by piling up the plants, then chewing out an opening and carefully layering much of the removed material to the top of the rising mound.  Inside each house, which is about one and one-half to three-feet high, a family of three to five muskrats snuggles to stay warm.  If a lodge needs repairs, holes are patched with anything from water lily roots to frozen catfish pulled from the mud. 
Muskrats spend lots of time in their winter homes and their shacks — eating food from their autumn caches plus other marsh plants foraged under the ice.  They can dive for up to 15 minutes to gather plants because their heart rate decreases under water, and oxygen is drawn from stores in muscle tissue.  Thick, waterproof fur keeps them dry and warm.  Instead of being webbed like a beaver’s, the toes on their hind feet are fringed with stiff hairs, so they work like paddles. The muskrat’s long tail undulates to provide propulsion when the animal swims. The tail can be angled to act as a rudder.
Muskrats are in many ways well adapted to survive the winter.  Diving muskrats can gather food without swallowing water because their lips seal shut behind the incisors.  Nimble front paws manipulate the roots of cattails, water lilies, arrowheads, pondweeds and other marsh plants.

February 8, 2021
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See Below for a brief on Muscrats.

We have at least 3 large muscrat holes we know of.  Bubbler2 is currently turned on for an experiment.   We will notify everyone when we have are finished. Thanks. 
Picture


http://barr-milton.org/files/9-21-11-webcast-slides.Lawn-Fertilizer.pdf  

University of Minnesota Turfgrass runoff study

• Phosphorus in water runoff, the soil, and grass plant tissue

increased linearly with increasing P fertilizer application rate

• 86% of phosphorus runoff occurred when soil was frozen

• 78% of water runoff occurred when soil was frozen

• 72% of runoff P was water soluble reactive phosphorus – the form most available to plants (algae)

• P runoff can be reduced without affecting turf quality by not

applying P fertilizer when soil test P levels are high

• However, these results should not be extrapolated to infer that no fertilizer of any type should be applied!

• Properly fertilized turf can reduce P runoff


2021
​Membership Form  

Say Hello
Fill out a form on the contact page so we can introduce ourselves.

Meeting Calendar

Next Meeting
Date: TBD
Noon
Location: On the lake 
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If it snows, we will put up a tent.  We are practicing our social distancing. 

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Click here for information.

Let's Talk Cattails

Muscrat Populations are up.  They help control the cattails. 

The image of Shavers Lake in the 1905 map below doesn't look at all like it is today.  That's how much we have changed the shape and state of the lake.  We need to be a great steward to protect this watershed from disappearing completely, which has almost happened twice in the past 30 years.   

Narrow-leaved Cattail

T. angustifolia is not native to Minnesota or the United States but is a native of Canada. Eloise Butler introduced the plant to the Garden on April 26, 1913 and again on May 18, 1913 with plants sourced from Kelsey's Nursery in North Carolina. Having been introduced to Minnesota long ago, it is found in many counties across the state. The plant is a predator for native vegetation, it predominates and is invasive. For more info contact Peter
Picture1905 Map of Shavers Lake

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