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Post 1: Observations

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Observation 1 Field Notes

Good evening,

The area I chose to observe is along the Lone Wolf Golf Course in Taylor, BC.  The area of observation (site) is located at the walking path intersection located east of a residential cul-de-sac located at the east end of Fairway Ave.

The site is approximately 100m x 100m, has an easterly gradient of 3-5%.  The top 30cm of soil in this area is characterized by an organic matter layer from 0 to 5 cm; soft, grey silty clay with some sand from 5 to 15cm, and firm brown silty clay with some sand from 15cm to 30cm.

Lone Wolf Golf Course is located in “the Peace Lowland Ecosection which is characterized by deep sedimentary bedrock, and has mildest climate, and lowest snowfall in the Ecoprovince, Peace River Basin. Summer brings high humidity, localized showers and occasional clouds. During the winter, Arctic air can bring long periods of extreme cold temperatures but clear skies. Boreal white and black spruce forests are typical. Trembling aspen and shrub-grasslands are common. There are sparse white spruce and lodgepole pine stands throughout region in areas of well-drained soil. Black spruce occurs in areas of excessive moisture such as muskeg, (Demarchi, D.A, 2011).”

The site is a forested area that has single family residents adjacent to the west and the 4th Hole tee box to the east.  Separating the residents is a 1m asphalt walking path.  Trees observed were poplar and pine trees and shrubs found were saskatoons, carraghana, currents, snowberries, black gooseberry, trailing black currant and prickly rose.  There were daisies, bluebells, many grass varieties, stink weed and significant organic ground cover including fallen poplar trees, piles of grass clippings and tree branches.

Wildlife heard were squirrel chatter and two different birds.

Three questions I would like to explore going forward are:

  1. What evidence of daily human interaction is visible at this site?
  2. What wildlife occupies this site?
  3. How prominent are native species in this area?

I will upload my field notes as soon as I figure out how to…

Regards, Marla

References:

Demarchi, D.A., (2011). The British Columbia Ecoregion Classification, 3rd Edition. March 2011, Ecosystem Information Section, Ministry of Environment. Victoria, BC. Ecology, Part II Ecoregion Unit Descriptions. Retrieved September 26, 2017 from http://www.env.gov.bc.ca/ecology/ecoregions/polareco.html

Post 6: Data Collection

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Data collection went smoothly! I was able to collect all of my samples at the same beach. In total, I sampled 50 individual seaweeds. 5 seaweeds were sampled per tide pool, with a total of 5 dominant and 5 non dominant tide pools.

I ran into a few problems during my sampling. The biggest problem (and a source of bias) was that many of the seaweeds were clustered together and separating them was tough as the boundaries between organisms was not super clear. I therefore had to sample only the individuals that I saw as separate from the others.

Another problem that persisted was many of the individuals weighed less than a gram, which was not detected on my scale. To fix this I weighed all 5 samples together and took an average to determine weight.

Upon a rough analysis of my data, it does seem that my hypothesis is supported. The average weight of seaweed from dominant pools is greater than the average weight from non dominant pools. Yay!

Blog Post 2-Sources of Scientific Information

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A question that came from my first blog post, specifically regarding a wastewater tertiary plant which is about to be built just outside of a public park in my town, is to ask the logical question… what will be the cause & affect that the construction of this site will have on the surrounding ecosystems? I have opted to use this report published in 1986 through the USEPA (United States Enviromental Protection Agency) & NSCEP (National Service Centre for Environmental Protection). This article is titled “Environmental Impacts of Advanced Wastewater Treatment at Ely, Minnesota”.

Tertiary Plant Article

The article was written by Donald J. Hernandez & Harrold Kibby, who are both part of the criteria & assessment group at the Corvallis Environmental Research Branch. Both are experts in their field.

The report contains in test citations & a bibliography (pg. 27). The report is an academic peer-reviewed report as it has been reviewed by multiple referees before being approved for publication. They have been cited as experts in their respective fields (pg 8).

The author provides multiple tables & results, as well as a final report, although it is not specifically listed in the index. Therefore, I would conclude that this is an Academic, Peer-Reviewed Research Material.

Source: USEPA, Office of Research & Development,  Energy Consumption Of Advanced Wastewater Treatment At Ely Minnesota, Environmental Research Laboratory, Corvallis Oregon, January 1978.

 

 

 

Blog Post 8: Tables and Graphs

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The graph I prepared was a visual representation of the raw data collected during my field study. The results were as expected with the fesuce grass species growing at a faster rate in shaded areas, compared to in full or partial sun areas. With the quantity of data collected it was hard to categorize the data. Averages of the growth in each area would have been more beneficial however the graph does give you a full representation. In collecting the data I would be curious to explore further, how other grass varieties are effected by sun exposure. I would also be curious to see if ambient temperature and rainfall also have an effect, in addition to sun exposure.

Blog Post 1: Observations

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Blog Post 1: Observations

Michelle Harrison

22-09-2017

The area that I have selected to observe is Macaulay Park. This is a treasured place, & one I visit on a daily basis. Macaulay Park is a 7.6 hectare (18.78 acre) municipal park located in Esquimalt, BC (Coordinates- Latitude: 48.418815 Longitude: -123.410113).

The park began as a part of the Hudson Bay Farm & then became a part of Fort Macaulay in 1878. The old military site still remains, & the land is dotted with old concrete war barracks & ammunition buildings, under/above ground concrete tunnels & lookout points to take in the beautiful ocean front vista. The topography is made up of rolling hills, rocky waterfront outcrops, glacial till & the vegetation that surrounds it is made up of native& non-native plants, a forested area, a wetland / marsh with long grasses. Macaulay has been a municipal park since 1985 & is owned by the DND (Department of National Defense) & maintained by the Municipality of Esquimalt.

It is a popular place for dog walkers, bird watchers & families. It is a common occurrence to see life here in many forms, including deer, otters, seals, sea birds, eagles, plus a variety of insects & pollinators. This park contains some rare & endangered species which are protected federally under SARA-Canada’s Species at Risk Act. Due to this, park visitors & their pets are required to stay out of designated risk areas, in order to protect the remaining species at risk.

The park contains many beautiful native, non-native & invasive plants including Wild rose (Rosa acicularis), Scotch broom (Cytisus scoparius), Dense Flowered Lupins (Lupinus densiflorus), Gumweed (Grindelia), Wild onions (Allium), Fennel (Foeniculum vulgare), Biscuit roots (Lomatium) & Himalayan Blackberries (Rubus armeniacus), & a lovely cluster of trembling Aspen trees (Populus tremuloides). When I visited the park today at 0800am, the weather was cloudy with light wind, 11 degrees, and it is the first day of fall.

Based on my daily observations & time spent at Macaulay Park, I have come up with three questions that will form the subject of my research project:

  1. The land at Macaulay Park contains species at risk. I witness on a daily basis, people walking their dogs in areas that are labeled as conservation / no entry zones. We do not seem to have any type of monitoring / park services to control humans & their pets. What affect does this have on the conservation areas & species at risk? Is this space being monitored & are the observations of the impact being reported to a higher authority on a regular basis?
  2. McLaughlin point (which is connected to the tail end of Macaulay Point) will soon be the home of the new sewage tertiary treatment plant for all of the waste from the core of Victoria. An incredible amount of waste will be shipped to this site & filtered, before being pumped to a local landfill for disposal, all via pumps & pipes which will be installed in land & ocean to travel the waste great distances. How will the construction of this waterfront treatment plant affect the very active local wildlife & ecosystems on the land, in the air, & in the ocean, for years to come?
  3. Macaulay point is home to a few invasive non-native species (such as Scotch broom & Himalayan blackberry). How does this affect the native plants & more specifically, the species at risk, such as Dense Flowered Lupin and the Purple Sanicle?

Blog Post 5: Design Reflections

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During the initial data collection efforts at Surrey Bend Regional Park, there were no difficulties in implementing my sampling strategy. However, after consultation with the professor we decided that the habitats being examined were not similar enough to compare, and that the anthropogenic influences on them were too different to be able to effectively account for any changes in bird species presence and abundance to only one explanatory variable. As a result, I have decided to change the location of my research project to Burnaby Lake Regional Park and the surrounding area, and focus the study on examining bird species presence and abundance at three sites along an urbanized gradient.

My revised hypothesis is: Bird species presence and abundance is impacted by the percent cover of natural habitat at a site. 

My revised predications are:

  1. Bird species richness will be highest in areas with the highest percent cover of natural habitat.
  2. Bird species abundance will be highest in areas with the highest percent cover of natural habitat.

My response variable will remain as bird species presence and abundance (continuous variable), and my explanatory variable of percent cover (categorical variable) of natural habitat (forest, wetland, etc…) vs. anthropogenic habitat (roads, buildings, trails) at each site as a whole will also remain the same.

In addition the followings changes will be made in the experimental design in regards to the way data is collected:

  1. Initial sampling took place mid-day and overall detectability was low. It is standard bird inventory procedure to sample only between dawn and 10:00am to increase detectability. I will now perform all my surveys during this period to maximize the birds being detected by sight and song.
  2. My new sampling strategy includes two survey sites (point count surveys) in each of the three habitats along the gradient. During the replicate exercise, I expanded the number of point count surveys in one of the sites to five. While it would be ideal to maintain this type of replication it is too time consuming to perform five replicate surveys in each of the three sites. As a result, I will perform two replicates per site, and will conduct surveys at each site on at least three different days.

During the next blog I will go into more detail on the sampling strategy, sample unit, how these changes have impacted the data collection, and any ancillary patterns that appear in the data to support the new hypothesis and predictions.

Blog Post 2: Sources of Scientific Literature

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The literature source that I have selected is The Sacred Balance by David Suzuki .  This is an academic source as it is written by an expert in the field (David Suzuki has a PhD in Zoology plus a number of other distinctions), includes in-text citations, and includes a bibliography. This source is peer reviewed, as in the acknowledgements section it is stated that each chapter has been reviewed by an expert in that field. This source is also considered to be review material as there was no scientific study conducted.  Overall, this source is classified as academic, peer-reviewed review material.

Source:

Suzuki, D. The Sacred Balance. 3rd ed. Vancouver: Greystone Books; 2007.

Blog Post 1: Observations

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The site that I have selected to conduct my field study is a forested area near my home north of Squamish, BC. I first visited the site on August 28 just before 7:00 pm. The day was hot (~30°C) and sunny and there had been no precipitation since June so the vegetation was very dry.

The site is located mid-slope on a terraced/undulating hillside with a westerly aspect. The undulations in the slope are formed by almost regularly spaced rock outcrops. Less than 50 m downslope of the site is a hydro power transmission line and cut block. The site is located on public forest land that has been previously harvested. I chose an area of approximately 20 m by 20 m to be my study site.

The forest is mature and the canopy cover is approximately 35%. The dominant species is Douglas-fir while western redcedar and lodgepole pine are also present. The shrub cover is dense at approximately 85% and is largely dominated by salal. Other shrub species include red and black huckleberry, Saskatoon, and red elderberry, as well as seedlings of western redcedar. I noted bracken fern in the depressions between rock outcrops but no other herbaceous species. The outcrops were covered in mosses (total cover of approximately 40%), which I identified as step moss, big red stem, and broom moss.

While I was at the site, a family of Ruffed Grouse moved through the area. The mother stood guard on top of one of the rock outcrops while the 3 young moved around in the undergrowth. I sat quite still and a couple of them came within a couple of metres from me.

Some questions of interest about this site are:
1) whether the species composition and cover of mosses vary with the position (crest, slope, depression) and aspect on the rock outcrops;
2) whether there is a difference in stand composition with distance from the cut line downslope; and
3) an investigation into why western redcedar seemed to be the dominant regenerating species (i.e. the most seedlings) while Douglas-fir is the dominant tree species.

Blog Post 1 – Observations

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Although I had a different location planned, I noticed the amount of life in the courtyard at TRU so I decided to switch my location. Therefore, the area I chose to observe is the courtyard on the TRU campus between Old Main, the library and the Clock Tower. The area is approximately 1 acre (measured with the scale on google maps), once you account for the cement walkways and buildings on it. The topography is very slight hills, filled with thick grass. There are human planted flower beds which include a variety of flowers and ornamental grasses. There are also a handful of trees left in the courtyard.

I first visited this courtyard in respect to this course on September 13th, 2017 at 10:36 am. It was around 20 degrees celsius. The sun was shining and the sky was clear however the was a slight wind.

In my field journal (click – ecology) I took notes on many bees and insects I saw. My first question would be, can this type of urban ecosystem support other larger organisms? Secondly, what is essential to provide a habitat in an urban environment? (e.g., is just a grass lawn enough, are flowers essential, are trees needed?). Lastly, what would be the main food source for these other organisms, if they are present? Aside from the pollen in the flowers for the bees.

Pollinators in BC

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I found a really cool resource online that was created by Border Free Bees and the Environmental Youth Alliance (http://eya.ca/wp-content/uploads/2017/07/common-pollinaotrs-of-bc-v40-2.pdf). It is a visual identification guide of common pollinators in BC. Unfortunately, it doesn’t contain any cited information, so it is non-academic. However, it does contain a lot of useful photos for identifying different pollinators, so I will keep it with me when I’m in the field.

A second resource I found, an academic, peer reviewed review, actually supported much of what was in the guidebook. It is a journal article titled Bees and Pollination in British Columbia written by Paul Van Westendorp and Doug McCutheon (https://journal.entsocbc.ca/index.php/journal/article/view/558/567). The authors are experts in the field and they provide a thorough review of bees and beekeeping in British Columbia. The paper also contains a complete bibliography and in-text citations. The journal’s editors ensure at least two reviewers per paper submitted making it an academic source of information (https://journal.entsocbc.ca/index.php/journal/about/editorialPolicies#peerReviewProcess).