I cheated a bit with this PB by using a scholarly article
that I have studied for the purpose of Biology Lab. The paper is Golden eagles, feral pigs, and insular
carnivores: How exotic species turn native predators into prey. An interesting
thing about scholarly peer reviewed papers is their lack of truly clever and
inventive titles. Scholarly papers generally explain the basis of the paper in
the title.
The paper I chose discusses how exotic species turn native
predators into prey, as is clearly stated in the title. The exigence for most
scientific papers is for the pursuit of knowledge; the desire to understand why
the world works in the way it does. Papers such as this one – Scholarly,
scientific, peer-reviewed papers – Have many conventions of their organization
that allows a reader to glance at a few sections of the paper and know what the
paper is about. Just skimming over one or two sections of a scientific paper
can tell you the background of the subject in question, what questions the
paper will be answering, how the experiments will be conducted, and the results
of those experiments.
Golden eagles, feral
pigs, and insular carnivores: How exotic species turn native predators into
prey is organized according to these conventions. The title tells you the
subjects involved in the experiment and the main idea of the experiment. Below
the title the authors are listed and below the authors’ names are footnotes
that list the authors’ credentials and their work place. The first portion of
the actual paper is a small bolded section called an Abstract. The purpose of
this Abstract is to give the reader background knowledge of the exigence of the
experiment. In this case, the Abstract informs the reader that the introduction
of a non-native species led to the presence of a different exotic species that
began preying upon the island fox who had been the major predator up until that
point. “The presence of exotic pigs led to major ecosystem shifts by indirectly
causing predation to replace competition as the dominant force shaping these
island communities.” The last sentence of the Abstract summarizes the Abstract
while also acting as a bit of a thesis statement. After the Abstract is the introduction
which is a more in-depth explanation of the exigence that led to the
experiment. The introduction also explains the question that is to be answered in
the experiment. Once the Abstract and introduction are done, the actual
experiment begins.
The rest of the paper is sorted into two distinct portions;
Methods and Results. Methods is sectioned into five portions that explain the
various methods used to conduct the experiment. The study area, type of
capture, type of analysis, competition estimates, and the model used are all
discussed at length in the Method portion of the paper. Evidence is used
throughout the paper in the form of graphs to show a correlation between the
number of eagles and the success of researches in capturing the native fox and
skunk. The graphs show that as the number of eagles over time increases, the
researches’ success in capturing the native species decreases which suggests
that there is a smaller population available to be captured. Results contains
numerical evidence to support the conclusion it presents. The result is also
combined with a discussion, making it quite lengthy. The results verify the
assumption that an exotic species can turn a native predator into prey. This was
devastating to the native fox population – it nearly went extinct from
predation as it shown in various graphs.
This experiment was conducted on the California Channel
Islands. It was primarily observational, although interference was necessary to
obtain an accurate count of the indigenous species. The researchers took samples
from the Golden eagles to determine the species they primarily consumed to
prove that the sudden decrease in native fox population was due to the
appearance of the Eagles.
I feel that the results are the most important aspect of any
scholarly piece. If I am reading a paper it is likely because the question intrigued
me and I wish to see how the experiment will be conducted and what results it
will produce.
