Blog Post 3. Ongoing Field Observations

The organism I am interested in is scentless chamomile (Tripleurospermum perforatum). Scentless chamomile is abundant on top, but is almost absent at the bottom of the pits.
My locations to record are:

1. On top of the mineral soil: Here the scentless chamomile is the most abundant and tall.

2. Mid-way down the slope: There is a steep decline in the abundance of scentless chamomile mid-way between the topsoil and the bottom of the pit.

3. The bottom of the pit: There is almost no scentless chamomile at the bottom of the pits.

I hypothesize that areas with abundant scentless chamomile will not be acidic. The explanatory variable would be pH (continuous) and the response variable would be scentless chamomile abundance (also continuous). I will measure the pH along the gradient to determine where it is high and where it is low and measure the abundance of the scentless chamomile to compare.

Post 1: Observations

Ecology refers to the scientific research of the relations that living organisms have with respect to each other and their natural environment. Fieldwork happened in the Acadia Research Forest (ARF) situated 20 kilometres northeast of Fredericton, New Brunswick, on Highway 10. This research forest was established in 1933 and continues to function as one of Canada’s essential and oldest research forest. The Acadia Research Forest is dedicated to facilitating continuing forest research or study through secure research sites. Additionally, the forest protects wildlife habitats and species that are at risk. I visited the Acadia Research Forest on 10th September and conducted field research at night and in the daytime. The potential subject that I want to explore for my research is Insect ecology and Natural history. Based on my observations, the interesting questions that may form the subject of the research project are:

  1. Why is it important to manage and conserve forest ecosystems?
  2. How are insects important in terrestrial biodiversity, particularly emphasizing on their excessive abundance and species richness?
  3. How to investigate the taxonomy and explore natural history and understand the functions or roles of the insects using observation methods in the field?

The identification of the insects and discovering their natural history as well as understanding their importance helps in creating awareness of the significance of the forest habitat conservation.

Blog Post 2. Sources of Scientific Information

a) This is an online scientific article.

https://www.nature.com/articles/s41598-017-12462-9

b) It falls into the category of academic, peer-reviewed research material.

c) It contains a method and results section, references, acknowledgments, in-text  citations and was written by experts in the field.  The ‘scientific report’ website it was published by corroborates this and states that it only publishes peer-reviewed materials and shows the date received, accepted, and published on the article.

 

Batanero, G.L., León-Palmero, E., Li, L. et al. Flamingos and drought as drivers of nutrients and microbial dynamics in a saline lake. Sci Rep 7, 12173 (2017). https://doi.org/10.1038/s41598-017-12462-9

Blog Post 1: Observations

The area that I have selected to observe is the Garden City Land Teaching and Research Farm, currently leased by Kwantlen Polytechnic University (KPU) in Richmond BC. The land is primarily bog and open for citizens to walk. It also has 8 acres of farmland run by the Sustainable Agriculture Program of KPU. The specific location I chose is between the untamed bogland and the organically farmed production land. I have selected an area of large stretch of land on the southern side. This area is generally flat but has been specifically modified by the professors at KPU to do their ‘Greenhouse Gas Plot’ research project; this entailed digging down to the bog in segments and leaving other segments with the mineral soil layered top. There is a notable gradient between the two different plots. I visited October 19 at 16.00 during a cool and dry day, however the week prior saw heavy precipitation. I observed that there was a denser and more diverse group of plants closer to the peat.  I observed that the scentless chamomile was very abundant on the top soil and very scarce nearer the bottom of the pits, and that clover was prominent throughout but more abundant at the bottom of the pits.  overall, there was more abundance and diversity at the bottom of the pits.  I am not sure whether to focus on a specific plant or where there is more diversity.  Before I collect samples I will be mowing the site to simplify the observation of my sample group (TBD).

over time.

My three questions are:

Is there a correlation between the soil being disturbed and the success of new plants establishing?
Are the plants that are lower more successful due to the shade in the lower level? Or more water access?
Does the pH of the soil being closer to the peat land provide a more suitable environment for the success and diversity of plants?

This is the farmland. The pits are along the right side of the photo.

 

One of the pits. This picture shows the difference in scentless chamomile abundance at the top and bottom of the pit.

Blog Post 7: Theoretical Perspectives

The ecological process that underlies my research is reproduction. My hypothesis has changed somewhat throughout the process of gathering my data and literature review, but the main concept of seed pod production varying due to an environmental factor has remained the same. As factors like light availability and disturbance vary, the ability of a plant to thrive and reproduce should also vary. Too much disturbance and the plant fails to reach maturity as a result of being damaged, too little light and the seeds that do get produced may be infertile. A gradient should be identifiable between beneficial and detrimental conditions.

Keywords for my paper would be:  Dog strangling vine, follicle, disturbance.

Blog Post 9: Field Research Reflections

Reflecting on the process of designing a field experiment and then carrying it out, I can say that it was very beneficial to my learning process. It wasn’t without some challenges though. I struggled to narrow down a pattern to observe and as a result chose an organism (fungi) that lead to a rather large experimental design. I needed to sample trees and this increased my study area vastly. I ran into some issues grasping sampling methods and procedures and I realized quite quickly, that the energy you put into planning while in the ‘office’ can make for an easy and seamless field visit. I had to return to the field as I had not pre-planned accordingly. I also realized that bias was throughout my study as it depends on the competence of the researcher (me) and my ability to comprehend sampling strategies and also species identification.

I found certain aspects of this process challenging, but I also learned what I could do better in the future. I found it really important to understand the way in which you preferentially learn. I really enjoy learning from another person in the field, rather than a document online. I believe that face-to-face teaching in the field for tree sampling would simplify the technical jargon I felt I was wading through in online procedures and literature. I did also appreciate that an online classroom took me outside, which is not common.

This process allowed me a much deeper and better understanding of the development of ecological theory. It’s one thing to ponder about the natural world, it is a completely different thing to engage in applied science to answer that question. My limited grasp of this, makes me believe that those who possess strong qualities for ecological theory, not only understand large concepts but can narrow down their thinking to minuscule interactions while being analytical thinkers and possessing much creativity.

Post 2: Sources of Scientific Information

The source I have chosen to evaluate is Ecology & Wonder in the Canadian Rocky Mountain Parks World Heritage Site by author Robert William Stanford.

Based on the How to Evaluate Sources of Scientific Information Tutorial presented in module 1, in order to determine whether a paper is academic or not, three criteria must be met. The first is that the text is written by an expert in the field, second is that it includes in-text citations and lastly that it contains a bibliography. With this in mind, while reviewing my chosen study, I can definitely say it is an academic study. A multitude of experts in their field are noted through the text, along with a wide variety of in text references to other material that solidify claims and a bibliography that provides easy to access pathways to the materials referenced in the text to verify their standing as well.

To determine if this text was peer reviewed, I found in the acknowledgements portion a brief summary of the authors peer review process to ensure publication through a university. The author also notes editors and many others who helped revise the text prior to publication. 

To assess if this text is academic material, I am seeking a summary of findings or results. This is a very large text that covers many topics when viewing the ecology of each unique rocky mountain and its history. This means that the findings are listed at the end of every subject covered as opposed to all in one place at the end of the text. I feel that this qualifies the research as academic.

This source is classified as academic, peer-reviewed research material.

References

Sandford, Robert W. Ecology & Wonder in the Canadian Rocky Mountain Parks World Heritage. Edmonton: AU Press, 2014. 

Tutorial: How to Evaluate Sources of Scientific Information [Internet]. Kamloops, BC: Thompson Rivers University [cited 2020 Jul 20]. Available from: https://barabus.tru.ca/biol3021/evaluating_information.html#1

Post 1: Observations

The study site I have selected is a creek formed by lake overflow down a cliff face into a valley surrounded by wetlands. It is called Peterson Creek and is a recreational green space with many groomed walking paths that are frequented by residents and often off leash dogs. Notable wildlife in the area was sparse, with minimal to no tracks visible, near silent trees with only one high pitched chirp coming from a small bird in the brush and a single brown squirrel in a decaying tree stump. The valley has a steep grade slope upwards that dramatically changes the terrain from lush, well-established greenery, to grasslands and eventually desert approximately 50 meters in elevation from the base.

The area I have selected to study is 2 acres total radiating out from the creek bed and up both sides of the valley. The creek bed is mostly a rock base with sediment at the base of the waterfalls but it does not continue down the creek. The edges of the creek are quite steep as spring flooding erodes a deep scar that it left nearly empty by this time of year. Immediately surrounding the creek is grass, bamboo, and medium sized shrubbery with many types of berries visible. Scattered amongst this is a variety of medium and large trees of varying types.

A few I was able to form an educated guess towards their type were Pine, Birch, willow, maple and poplar. The area is located in the city center directly next to the hospital. It is surrounded by busy streets on each side that are not visible from the trails or audible due to the deep valley and brush positioning in relation to the trails. I made my first observation at the site at 13:00hrs, the temperature was 11 degrees C with a gentle breeze. The skies were completely cloud covered. 

I made many interesting observations during my first trip to the site; the most prominent in my mind were as follows. Does the lack of sediment and the narrowness of the creek bed along with the seasonable variability in water levels affect spawning of fish in the area? I also noticed a randomness to tree type and placement and was curious if these were planted intentionally to add appeal to the area and if so, does this adding of biodiversity in the area create more interest for animal population, or does it drive them away due to creating an abnormal habitat for them? Lastly,  I noticed a lack of debris in the creek. There were no sticks or blockages in the water, which struck me as an unexpected finding as a lake is what feeds the creek via a waterfall. Does the potential cleaning out of the creek for aesthetic purposes contribute to the lack of animal inhabitants?

Blog Post 8: Tables and Graphs

I created a table to show the frequency of conk presence and tree species within the three ecotypes I sampled. I sampled 10 replicates in each ecotype resulting in 120 trees sampled. I wanted to see if the data would show a pattern between tree species, tree health and conk presence. I had some difficulty creating a visual representation of the data as I had originally wanted to show a graph, as I feel they are very clear. However, I had many variables I wanted to compare and I was not able to do this in a clean way with a graph. I was able to show conk frequency per ecotype, tree species frequency per ecotype and average tree health per ecotype. The data is showing support of my claim that conks are opportunistic of trees in poor health, however, I think I would need to increase my sample size to show a stronger argument. It is quite difficult to visually represent what you intend when thinking about the data – the process can leave many things lost in translation.

Blog post 6: Data Collection

Data collection for my study has begun. So far I have collected 7 replicates. There were not any problems this time around. The sampling went according to expectations and there were no surprises in the process. Over the process of the data collection, some further observations of the area have been made. I have noticed that there is some grass cutting occurring in the tall grass areas of my study area which I hadn’t noticed before. This could be a contributing factor to the observed differences in the vine growth so I have begun corresponding with the City to confirm the schedule and extent of the grass cutting through the growing season.