Human noise pollution is disrupting parks and wild places

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This article by Rachel Buxton, Postdoctoral Research Fellow, Colorado State University, is reprinted with permission from the website “The Conversation”. Click on this link for the original article:

https://theconversation.com/human-noise-pollution-is-disrupting-parks-and-wild-places-78074

As transportation networks expand and urban areas grow, noise from sources such as vehicle engines is spreading into remote places. Human-caused noise has consequences for wildlife, entire ecosystems and people. It reduces the ability to hear natural sounds, which can mean the difference between life and death for many animals, and degrade the calming effect that we feel when we spend time in wild places.

Protected areas in the United States, such as national parks and wildlife refuges, provide places for respite and recreation, and are essential for natural resource conservation. To understand how noise may be affecting these places, we need to measure all sounds and determine what fraction come from human activities.

In a recent study, our team used millions of hours of acoustic recordings and sophisticated models to measure human-caused noise in protected areas. We found that noise pollution doubled sound energy in many U.S. protected areas, and that noise was encroaching into the furthest reaches of remote areas.

Our approach can help protected area managers enhance recreation opportunities for visitors to enjoy natural sounds and protect sensitive species. These acoustic resources are important for our physical and emotional well-being, and are beautiful. Like outstanding scenery, pristine soundscapes where people can escape the clamor of everyday life deserve protection.

SLWSS Newsletter for July 2017

The Sylvan Lake watershed includes about 150 square kilometres of land and water that need the attention of the community.

 

State of the Watershed Update

Two summary reports compiled by the Alberta Lake Management Society included Sylvan Lake water quality data collected during our 2016 campaign. Because of the low nutrient concentrations, which are  indicators of the potential for blooms of nuisance algae, Sylvan Lake is now ranked as oligotrophic, the lowest category of lake productivity. As phyto- and zoo-plankton are a critical part of the lake’s food chain we will now watch the condition of aquatic life more closely.

Runoff, Precipitation and Water Balance in 2017

Spring runoff is recorded in this music video of Golf Course Creek peak flow. It is usually an important event for transferring sediment and mobile soil constituents off the land into the lake, however this year’s version did not last long. Cumulative precipitation in 2017 measured at the Alberta Agriculture Hespero weather station has been close to the long term average, as is the level of the lake. Those observations mean that the water balance of the watershed is close to the historic norm.

That is so even with the AEP-regulated emergency practice of pumping crown-owned water from Sylvan Lake to carry treated sewage lagoon effluent through Cygnet Lake and into the Red Deer River. The impact of pumping on the lake volume is small, less than 0.4%, and comparable to the rate of withdrawal caused by natural evaporation rate that typically occurs after July 1.

Monitoring Land Use Changes

We monitor changes in land use with special attention to the Sylvan Lake shoreline. We converted video from the SRD  2007 helicopter survey to a streamable format that can now be viewed easily even on a smartphone. We considered commissioning a new drone survey, however high resolution Google Earth imagery is available for free. We confirm and document those aerial and satellite observations with ground and lake-level investigations to update risk assessments. For example, here is the latest “Juno Beach” landscaping look and a surprising Blissful Beach slope failure.

The Flipside Project

Sometimes we even have fun. We ran a lake water sampling demonstration for elementary school kids at the Flipside after-school clubhouse and simulated an on-the-water campaign on a miniature scale.

Best Stewardship Practices for Boaters

Lake stewardship among boaters seems to fall well down their “to-do” list. Nevertheless, the diligent SLWSS Quiet Enjoyment Initiative team led by Kent Lyle continues to work with the watershed municipalities to educate boaters with brochures and signs about the need for respectful noise abatement. Alberta Environment and Parks (AEP) has also urged boaters to Respect Our Lakes with new signage. Recreational lakes are receiving more AEP attention. The Society provided the Town of Sylvan Lake (TSL) with our opinion on subsidized boat launch access.

Risk to the Lake from the TSL West Area Development

On our watch list is the potential impact of the TSL’s new West Area Development on the quality and quantity of stormwater that runs off that land into Golf Course Creek then discharges into Sylvan Lake through Marina Bay. We evaluated the Water Balance methodology used by BC municipalities to model stormwater flows and concluded that the low probability of excessive lake contamination to cause chronic eutrophication did not justify a Society project expenditure of $10,000.

Wallpapering of the whole watershed with urban development would change the impact assessment considerably. A cumulative effects monitoring program is still required.

Our Contacts with Institutional Friends

We have generally reduced the intensity of relationships with municipalities and government agencies that do not add clear-cut benefits for the Society and our members.

There is a glimmer of hope that the refreshed inter-municipal Sylvan Lake Management Committee might reactivate the Cumulative Effects Management System project. Until it does so, we will remain on the sidelines, tracking changes and watershed health indicators.

Alberta government agencies remain preoccupied with their internal affairs and have not been inclined to offer hands-on assistance to community stewardship groups like ours. So we have reciprocated by inaction, except for sharing SLWSS accomplishments in this report to the 2017 Recreational Lakes community.

Send Us Your Watershed Concerns and Comments on SLWSS Direction and Initiatives

We invite your comments, input and tips on watershed events and practices that you believe increase the risk to the watershed and lake are invited. Smartphone photo evidence is valuable. We like to monitor natural and human risk factors and encourage whistle-blowing, although our QEI team might object to that.

Join the Society. Just $20.

Alberta Lake Management Society Reports on Sylvan Lake

The Alberta Lake Management Society (ALMS) has issued two summary reports on the condition of many of the recreational lakes in the province.

The LakeWatch summary of data from the standard protocol testing of Sylvan Lake showed the lake to be in a low-nutrient oligotrophic condition with favorable water quality for recreational use in 2016 as we also reported at the time.

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A separate ALMS LakeWatch report on a subset of five lakes in the Red Deer River watershed, compares Sylvan Lake to these popular destinations: Buffalo Lake, Burnstick Lake, Chestermere Lake, and Gull Lake.

 

The Biodiversity Monitoring Institute Reports on Alberta

The Alberta Biodiversity Monitoring Institute (ABMI) has released a series of reports that can be used to observe changes in land use and environmental variables.

See these web pages:

Land Cover

Human Footprint Map

Species

Some  of the map products will be useful for monitoring of the Sylvan Lake watershed, however the resolution is too low to monitor changes at the community or individual property scale.

News from the Alberta Recreational Lakes Forum 2017

Alberta Environment and Parks organized this year’s forum at Lake Isle west of Edmonton.

Several forum documents and presentations are filed in this online SLWSS folder.

The SLWSS did not attend this year’s forum as the need for input from community stewardship groups has declined. We did provide this report on our 2016 activities and projects:

SLWSS REPORT FOR THE ALBERTA RECREATIONAL LAKES (ARL) FORUM 2017

State of the Watershed 2016

Our comprehensive report “The Sylvan Lake Watershed-Second Edition” documented changes in the key indicators that affect the state of the watershed. Data on Environmental, Social and Economic Cumulative Effects variables were compiled for time periods of one or more decades and presented a picture of a relatively stable environment.

Water Quality Monitoring 2016

Preliminary analytical data indicate that in a year with little spring runoff the nitrogen and phosphorus nutrient concentrations have been lower than the long-term average. The lake water clarity remained very high with Secchi disk depth measurements typically greater than 5 metres. Photo albums of the lake sampling expeditions were posted on our SLWSS News blog site.

Nature Alberta’s Living by Water Program

The Society has promoted the Nature Alberta Living by Water program for several years and enabled more than 80 property owners to benefit from Home Assessments. Response to L by W has declined and we awarded a SLWSS yard sign to just a single property owner in 2016.

Government Affairs in 2016

The Society presented a statement on the potential impact of the West Area structure plan at a public hearing of the Town of Sylvan Lake with regard to transport of silt from construction sites through Marina Bay into Sylvan Lake in Golf Course Creek runoff. We recorded several cases of increased turbidity in stormwater runoff.

Groundwater Research

We assisted a University of Calgary geophysics survey team led by Profs. Lauer and Bentley to collect groundwater aquifer data at the west end of Sylvan Lake in October.

Quiet Enjoyment Initiative

The QEI subcommittee chaired by Kent Lyle continued its efforts to have local municipal bylaws adopted to control the sources of noise on the lake. An education and boat launch site signage project was developed at the request of the SLMC. Subsequent support by the municipal members of the SLMC was mixed and disappointing to the hard-working sub-committee. The QEI message resonated with and received considerable major and local media interest in its efforts to promote respect for others. An expanded QEI subcommittee report is posted here.

Community Outreach

Our ceramic tile for the new lighthouse is mounted on the structure with inscription: “Sylvan Lake Watershed Stewardship Society: Protecting the lake’s natural assets and values through vigilance and science”.

 

 

 

Juno Beach Comes to Sylvan Lake

The shoreline of Sylvan Lake is changing as McMansions replace those old time family summer cottages.

Architectural, environmental and aesthetic standards seem to be flexible. Living by Water principles that help property owners manage water balance and preserve the riparian zone with recommended low impact development and landscaping standards in some cases have apparently been eaten by the family dog.

One Birchcliff SV property owner has prepared for an invasion by sea as this section of re-contoured escarpment and shoreline now resembles Juno Beach in 1944:

Birchcliff vs Juno Beach

Shoreline impairment surveys document the degradation of the naturally protective riparian zone around the perimeter of the lake.