Semiochemicals Essay

During the lab of testing whether the color of a pen will affect the movement of a termite, it was discovered that termites are more likely to follow a black and purple pen, rather than a red, blue, or green pen. It was hypothesized that if a blue, red, black , purple, and green pen were used, then the termite would follow the black pen because of it’s comparable scent of that of pheromones. This was proven correct based on the data and graph. Also the purple pen had pheromones in it’s scent like the black pen, concluding that only black and purple pens contain pheromones. But, the purple pen resulted in a much slower travel time from the termite. Approximately 15.83 average seconds were trimmed off from the black and purple pen.

Migita and Moriyama (2004) declare that in unknown environments, animal behaves inappropriately by expressing their innate or learned behavioral patterns. A. vulgare are often found constantly moving around the edge of the Petri dish because the environment is unfamiliar and appears as an obstacle (Migita and Moriyama 2004). One observation of pill bug’s movement is when they follow each other. Males can detect females through distance chemical communication (Beauché and Richard 2013). Due to aggregation pheromone, the A. vulgare are attracted to each other.

-Arthropods use pheromones, this includes sowbugs and cockroaches. Chemical signals are picked up by antennae.

Secreted chemical signals involve communication at a distance. Primary modes of chemical signals include hormonal, neurohormonal, paracrine, autocrine, and neurotransmitter.

This is a simple equation that doesn’t properly prove the reaction. It is very complex and starts with this:

This experiment was constructed to determine which type of writing utensil the termites were most attracted to and why. The experiment was performed by placing two separate circles (one red papermate and one lead pencil) on a piece of paper to see what line is favored by the termite. The termite was placed on the lead pencil path first, and then on the red papermate pen path to count how many seconds the termite remained on or followed the pathway. The termite stayed on the red papermate line for a much more significant time than on the lead pencil line. “The presence of insect pheromones that chemically control the behavior of highly specialized social insect

Inhibitors of cAMP phosphodiesterase would allow the second messenger to exist and amplify the signal, increasing the extent of the scent.

Hormones are also associated with sexual characteristics and function at different levels from infancy to adulthood. Puberty triggers a specific gender and one will attract to the opposite sex (normally).

Trapping is a fun thing to do, but first you must get a license and tags for your traps. During the winter you can trap and get money from the animals you catch. Trapping is a way to reduce the spread of disease and prevent over population of animals. Remember you will not always catch anything and sometimes you won’t catch anything for several days.

Multiple Choice Identify the letter of the choice that best completes the statement or answers the question.

The fisherman strongly believed that the notching process during culling, which made the sexually proven females off limits and illegal to harvest in the future, helped in the conservation efforts and ensured those proven breeding females would be returned to the waters. There they would be legally protected to continue breeding without danger of being harvested in the future. Studies validated the local fishermen’s theory that females in the population showing spawned eggs were statistically more likely to breed again and consequently would increase the egg stock in the waters and health of the lobster populations. The Department of Marine Resources felt that the notching of the females created conditions for infection of the females at the notch location. However, the Department yielded at the insistence of the fishermen. There was evidence provided that the practice was in fact helping the conservation effort. In addition, there was much discussion between the groups of the effectiveness of conservation efforts such as minimum harvest size, trap limits, licenses and escape vents on traps. The lobster fishermen actively participated in the decision making process and worked through their own lobbying efforts to guide and shape legislation for the Maine lobster industry that both reflected their own conservation

Senses airborne chemical molecules • Related to memories & emotions • Consists of 10 million rods embedded in the olfactory epithelium – responding to different chemicals

One aspect of our results was close to having a significant difference. There was no difference among the frequency of male antennal grooming between the three different B. dubia densities with pheromones, but the data was close to being statistically significant (p= 0.051), and we think that with more refined methods, and a better understanding of B. dubia social interactions that future data may be statistically significant. We thought that antennal activity would be the most important aspect of cockroach behavior when it came to the spread of disease and social interactions, but our data did not support our hypothesis. We made many observations, that we did not quantify, that demonstrated much more active behavior in the presence of pheromones. These behaviors, including males approaching the cotton ball with the female pheromones and the males sparring with each other, were much more common in the

This paper is about chemical reactions and chemical reaction types. All the data gathered was from conducting multiple experiments. Each experiment was performed carefully and analyzed to obtain the necessary information for the paper. That information included the four signs of a chemical change, the rnx type, and more.

Chemistry has been called the science of what things are. Its intent is the exploration of the nature of the materials that fabricate our physical environment, why they hold the different properties that depict them, how their atomic structure may be fathomed, and how they may be manipulated and changed.