Outline for a report
Aquatic Invertebrates
Used to Classify Stream Health
Ecosystem
All things contained in an environment
Water (input and output)
Climate
Daylight
Plant life
Clear Cutting
Clear Cutting seriously effects all aspects of an ecosystem
Maine is, per capita, the most heavily logged state in the continental U.S.
Why Clear Cutting is Used
Simple
Creates a uniform forest to harvest in 40 years or so
Easy to replant
Cheap to Maintain (pesticides)
Clear Cutting Impacts on Streams
Clear Cutting seriously effects stream ecosystems
The effects of clear cutting can be felt on stream ecosystems for up to 60 years
The First Five Years After a Clear Cut
This time period is actually beneficial in most aspects of stream animal (vertebrate and invertebrate) health
The increase in CWD creates resources for life
Nutrients good for aquatic species increase
Nitrogen levels increase 40 times
Potassium levels increase 11 times
After Five Years
The negative effects of clear cutting begin to be felt
Increase in fast growing vegetation catches nutrients
Increased solar radiation leads to increased water temperatures
With no protection, water temperatures drop drastically at night
After Five Years (continued)
Packed soil and new vegetation lead to increased water input
Leading to higher peak flows and washing out CWD and boulders (habitats)
The stream widens and becomes shallower
Overall homogenization of the stream occurs
Second Growth
After 30-40 years, second growth forests develop
The stream ecosystem stabilizes
Stream Invertebrates
Stream invertebrates have adapted to the harsh stream environment
Mayflies are flattened from top to bottom, allowing them to swim fast in low current areas
Blackflies produce a substance to attach themselves to rocks when the current is strong
Many aquatic insects have tarsal claws used to attach themselves to rocks to avoid the current
Identifying Stream Quality with Stream Invertebrates
These adaptations have led to species that easily survive in polluted streams and those that don’t
Streams can be classified by the types of insects in them
There are 3 different categories of aquatic invertebrates when referring to stream health
Invertebrate Body Parts
Healthy Stream Invertebrates
Invertebrates that live in a healthy stream are classified as Group One Taxa
Healthy streams contain high biodiversity
Some examples are...
Stonefly
1/2 to 1.5 inches long
2 tails
6 legs with hooked tips
Caddisfly
Up to 1 inch
“Shell” made of mud sticks or small rocks
6 hooked legs
Different Caddisfly “Shells”
Riffle Beetle
1/4 inch long
6 legs
Oval body covered with tiny hairs
Mayfly
1/4 to 1 inch long
2 or 3 tails
6 large hooked legs
Often confused with the Stonefly
Moderately Healthy Stream Invertebrate
Invertebrates that live in moderately healthy streams are classified as Group Two Taxa
Moderately healthy streams support a lower number and diversity of species
Some examples are...
Crayfish
Up to 6 inches long
8 legs, 2 claws
Dragonfly
Hägglund, Å., & Sjöberg, G. (1999). Effedts of beaver dams on the fish fauna of the forest streams. Forestry Ecology and Management, 115, 259-266.
A major flood on any river is both a long-term and a short-term event, particularly any river basin where human influence has exerted "control" over the ri...
Admittedly, 2/3 of the world’s population living with water shortages is a scary enough statistic to send a shiver up the spine. Barlow doesn’t stop there however; she goes on to say that only 2 % of the U.S. rivers and wetlands remain untouched. What does that mean for the creatures that lived there? Covered that too, “37% of freshwater fish are at risk of ...
Although A Land So Strange focuses on 16th century America and Jacksonland focuses on 19th century America, both works feature men who were willing to sacrifice Indigenous lives for the acquisition of land and resources. However, Indigenous peoples did not simply let this occur. In A Land So Strange, multiple Indigenous groups told Narváez embellished tales about prosperous lands in order to prevent him from intruding on their settlements. In Jacksonland, the Cherokee created their own constitution to participate in American politics. These examples are from the many historical events of Indigenous resistance to colonization. This essay analyzes why some of the efforts of Indigenous resistance succeeded while others failed. By looking at
In this essay I will consider the objections to Virtue Ethics (VE) raised by Robert Louden in his article entitled On Some Vices of Virtue Ethics which was published in 1984. It is important to note at the outset of this essay that it was not until 1991 that the v-rules came up in literature. So Louden is assuming throughout his article that the only action guidance that VE can give is “Do what the virtuous agent would do in the circumstances.” I will be addressing Louden’s objections with the benefit of knowing about the v-rules. First of all, let us discuss what VE is. VE is a normative ethical theory that emphasises the virtues or moral character, thus it focuses on the moral agent. It differs from Deontology which emphasises duties or rules, and Utilitarianism which emphasises the consequences of our actions.
Kathleen DuVal, professor of History at the University of North Carolina at Chapel Hill, contests long held beliefs about the historiography of native people and their place in America with her work, The Native Ground: Indians and Colonists in the Heart of the Continent. DuVal’s insightful book focuses on the Arkansas River Valley and the diverse group of both native groups and European powers that contented over the physical landscape, its resources, and the perception of control and power. The premise of Native is to show that native groups such as the Quapaws, Osage, and the Cherokee had the upper hand in almost every aspect from their economy, military might, and physical presence up until the 1800s.
Hursthouse, R. (2003, July 18). Virtue Ethics. Stanford University. Retrieved March 6, 2014, from http://plato.stanford.edu/archives/fall2013/entries/ethics-virtue
Iago is the main antagonists against Othello, throughout the entire play. Iago is not realistically motivated. Even though Iago makes many of his decisions with careful thought, he does have a main flaw that will come back to haunt him in the end. Iago unlike other characters, doesn’t have true honorable morals. Because of this, he makes many situations which are manageable, and takes them further out of proportion he does this for his own pure enjoyment to create havoc for sport. Iago manipulates the characters who trust too easily, such are Roderigo and Othello. Iago uses them as an addition to his plans, which he manages so they will work in his favor in the end, or so he believes they will.
From the very beginning of Shakespeare’s Othello, Iago is held in very high regard within the community in Venice. He is often called “honest Iago” by many people, including his superior, Othello. There is a large juxtaposition between Iago’s character in the beginning of the play, and the general perception at the end of the play, due to Iago’s many character flaws that cause him to create devious plans and a web of deception and lies, spun by his intense anger and hatred. The exposition of Othello holds many indications of the negative traits Iago possesses, and they escalate quickly as the play progresses. There are many points within the play that present Iago falling prey to his issues and therefore lets them control him. Iago’s anger and hatred kept him from dealing with these character flaws and lead to his descent into moral
Mary Main was Ainssowrth student. She therefore introduced another fourth category of attachment styles with her attachment studies with adults. During her longitudinal research project alongside her colleague Goldwyn on middle class children’s attachment styles, they found that about 79% of the time attachment styles remained constant from 18 months to 6 years of age (in Brandell & Ringel, 2007,). However in their observations about 5%) that did not fit into Ainsworth’s classification of attachment styles, which they called ‘disorganized/disoriented attachment’ (Main & Solomon, 1986, 1990). These children were fearful and engaged in repetitive or aggressive behaviors. Their behaviors at reunion were unpredictable. They displayed contradictory behavior patterns such as approaching and then suddenly avoiding or exhibiting misdirected behavior patterns such as crying when the stranger leaves or stereotypical behaviors such as rocking, hair pulling or freezing. The mothers of these children were either depressed or had unresolved grief due to early loss of own parents (Main & Solomon, 1986). In this type of attachment, there is no or very little organized strategy to cope with stress and to form an attachment relationship with the caregiver, because here, the attachment figure is the direct cause of distress or fear. An abusive, abandoned and frightening caregiver is the source of fear and the protector at the same time. The infant shows signs of distress and displays avoidant and inconsistent reactions in the presence of the caregiver (Bakermans-Kranenburg & van IJzendoorn, 2007; Stams et al, 2002).
Virtue theory is the best ethical theory because it emphasizes the morality of an individual in which their act is upon pure goodness and presents as a model to motivate others. Aristotle was a classical proponent of virtue theory who illustrates the development habitual acts out of moral goodness. Plato renders a brief list of cardinal virtues consisting of wisdom, temperance, courage, and justice. This ethical theory prominently contradicts and links to other theories that personifies the ideal being. However, virtue theorists differ from their own expression of these qualities yet it sets a tone that reflects on the desire to express kindness toward others.
Virtue ethics is a theory about finding our highest good and doing so will develop a vigorous character within each person. Character is important because it shows that a person has certain beliefs and desires in doing the right thing and when the right thing is accomplished, happiness follows (Hartman, 2006). Virtue ethics derives from Aristotle and he concludes that by doing virtuous acts all through life happiness and respectable character will develop (Morrison & Furlong, 2013). Finding the highest good within oneself brings happiness and great character to that individual.
The virtue ethics approach is a theory that suggests that people are judged via their character, not specific actions. An individual who has developed good character traits (virtues) is judged as a morally good person. An individual who has developed bad character traits (vices) is judged as a morally bad person. Most of us have a mixture or virtues and vices. There are many pros and cons linked to this approach. The pros include
Arthropods are animals belonging to the phylum Arthropoda, which is the largest of all phyla in the Animal Kingdom, with more than one million species, making them almost 80% of the whole kingdom. These include insects, arachnids, crustaceans and many more, most of which are quite small, the biggest being the Japanese Spider Crab with a leg span of 3.5 meters and the smallest being the microscopic Plankton.
As mentioned by Thiroux & Krasemann, expresses how the establishment of virtues is based on the measurement of righteous perceptions (72). For instance, as a society we know mainly through trial and error what type of moral codes to develop. Many people undergo errors of society and we established what is common sense because of it. Therefore, virtue ethics isn’t solely on notions to project a list of rules in order to be a decent human being, but to apply these basic principles to how we feel as well (Thiroux & Krasemann, pg.78).