Isopod Humidity Preference 2nd Draft

Isopod Humidity Preference 2nd Draft - Isopod's Humidity...

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Wire Screen Dry Drierite Wet Drierite Porcellio Isopod’s Humidity Preferences based on the two genera: Porcellio scaber and Armadillidium vulgare . By Hailey Love, Andrew Bernstein and Rosalea Taam Introduction Kinesis response is when a species behavior changes due to a stimulus. Understanding kinetic responses allows the behavior of a species to be better understood. An example of a kinesis response is when the movement of a species decreases due to an increase in the relative movement. (Chen 2007). Isopods, also called terrestrial crustaceans (Figures 1 and 2) can differentiate between moist and dry habitats and have been shown to prefer moist environments. In this experiment two genera of isopods Armadillidium vulgare (figure 1) and Porcellio scaber (figure 2) were observed. (put in a study that examined isopod’s humidity preferences) In a quick observation it was observed that the Porcellio scaber prefers a dry environment rather than a wet one based on observations prior to the experiment that that species has a greater rate of movement in the wet environment than the dry environment. It was also observed that the isopod species Armaillidium vulgare prefer damp environments based on observations that it has a greater rate of movement in the dry environment than in the wet environment. From these observations, if Armadillidium vulgare has a stronger preference for damp environments than Porcellio scaber therefore Armadillidium vulgare will move less in the damp environment. [If the different isopod genera have different preferences of environment, then the Armadillidium vulgare will move faster in the dry environment than the wet environment, while the Porcellio scaber will move faster in the damp environment than the dry environment.
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