This week has consisted of writing my introduction for my paper. Lots of studies are being read to help with information related to terrain analysis and vegetation mapping. Five other finals and work have me competing for time so this week has been a struggle.
I have been quite busy this semester collecting data for my capstone project. I have sampled at multiple sandy beaches ranging from Santa Barbara to Malibu and I have found that Refugio, Solimar, and Rincon beaches have the highest species richness and heterogeneity.
This week finals are coming up and the intro to Capstone is due soon. We have been working with ArcGIS, background maps and how to display our data. we have also been utilizing images captured on SRI to give background info on the island and my research. My paper is also being reviewed by peers and professors. Two of four have returned and the paper is being edited later this week.
The final Point of Entry that I will be surveying is the airstrip. This image shows the hardscape (zone 1) and the 20 meter buffer zone around it (zone 2). I wanted to walk along it to see what types of vegetation there was and what the hardscape was like, but that would require advanced collaboration with the National Parks to ensure it is safe and no planes are around. This image is from the Invasive Plant Monitoring protocol from NPS.
For the second point of entry, which was the campsite, I decided to use a different method to catalog the hardscape. This time I decided to create GPS way points at every turn or bend around the perimeter as opposed to having the device continuously recording my steps. I found this method to be a lot slower given that I had to stop completely in order to record the way point and save it, as opposed to non-stop walking the perimeter. However, once I uploaded my results, it was clear that this method was much more accurate. There were no way points that seemed off and I came up with a very clean reference to use once I re-create this as a polygon in Arc-Map.
On my last trip out to Santa Rosa Island this semester, I decided to get a good lay of the land and outline the area of my sampling sites. The first one was the Port and Cultural Center area. I spent several hours just walking the perimeter around the area and in between all the fences to see what would match up with the National Parks guidelines on what defines the “hardscape,” which is “developed area (e.g. compacted earth, gravel, pavement, fencing) and the first 50 meters” of connecting dirt roads and trails.1 Keeping this in mind, I walked around the area several times, each time exploring something new to see what would fit this criteria. On my last go, I had a GPS device constantly running and I walked the exact perimeter in accordance with the guidelines and came up with a hardscape for my first point of entry. There were a few errors with the GPS device cutting out in signal with this method so there are points in which it appears that I cut through structures and fences, however I will re-create this in Arc-Map cleaner now that I have a good visual of the hardscape and how far 50 meters in on the trails.
1 Irvine, Irina C., et al. Invasive Plant Monitoring in the Mediterranean Coast Network: Santa Monica Mountains National Recreation Area and Channel Islands National Park. 2015. Print.
With the completion of the schedule of my project and the overall outline for the semester progress has begun on the introduction for the paper. Some additional source need to be found in order to iron out some of the rough edges but progress is being made. I expect the paper to be finished sometime this week before Friday.
Santa Rosa Island research has gone well and progress is being made though it is slow. Trips being spaced so far apart as well as class and work makes getting out to the island difficult. Over the past several trips somewhere in the range of 600 trees have been counted. Since this post I have been to the island 2 times. One time I was out and was only able to get to the research site for one day due to illness. The second time I was given a research assistant and was able to count about 230 trees. This is the map from that trip.
These pictures were taken under the Iron Horse Trails bridge off of Magic Mountain Parkway. It is downstream from the picture in the last blog. There were larger pools of water here but I did not see any stickleback. This was a known location of unarmored stickleback in the U.S. Fish and Wildlife Review from 2009. The pictures shown below are of the stream and as I moved closer to the waste water expulsion area there was a strange orange growth in the water and some parts had oily bubbles on the surface as well.
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