Interactions between species can increase or decrease the di…

Interactions between species can increase or decrease the diversity of a community, usually measured as the number of species. For each type of interaction, state whether the interaction (i) increases diversity, (ii) decreases diversity, or (iii) either increases or decreases diversity depending on the situation. Defend your position based on direct and indirect effects in a community. Four types of interactions: Competition (2.0 pts) Herbivory (2.0 pts) Mutualism (2.0 pts) Predation (2.0 pts)

While out hiking you observe two beetle species (i.e., beetl…

While out hiking you observe two beetle species (i.e., beetle species A and beetle species B) feeding on a single species of plant (i.e., Shrub C). Consider the Competitive Exclusion Principle for the two beetle species, which states that two species cannot coexist indefinitely when they are both limited by the same resource. Describe an experiment that you could perform to test if the two beetle species (i.e., beetles A and B) feeding on the shrub (i.e., shrub C only) fit this principle. Include a brief description of two treatments and one control, as well as a variable you will measure to help determine the outcome (4.0 pts). What pattern(s) do you predict to observe if your experiment of the Competitive Exclusion Principle is supported? Explain your reasoning (4.0 pts). What pattern(s) do you predict to observe if your experiment of the Competitive Exclusion Principle is not supported? Explain your reasoning (4.0 pts).

A researcher studying a population of antelopes developed th…

A researcher studying a population of antelopes developed the life table shown below. Use this table to answer the following questions. Life Table Age sx bx 0 0.4 0 1 0.3 0 2 0.9 1 3 0.8 3 4 0.1 2 5 0.0 0   What is the survivorship of an individual from birth to the age of 4 years? (4.0 pts) must show work to receive full credit. What is the net reproductive rate of the population? (5.0 pts) must show work to receive full credit. Do we expect this population to increase, remain relatively the same, or decrease? Why? (3.0 pts) describe both numerically and with text. must show work to receive full credit. To ensure accurate grading, label the three question a, b, and c in your answer.

The food web below displays the direct and indirect effects…

The food web below displays the direct and indirect effects that fish, dragonflies, bees (i.e., pollinator), and plants have on each other. Describe three (3) of the seven (7) interactions between these five organisms. The interactions are denoted by the seven arrows. In each description, state: the names of the two organisms (e.g., larval dragonfly affects plants) if the effect is direct or indirect if the effect is positive or negative what happens during the interaction (e.g., the adult dragonflies eat the grass). *Note: you are expected to describe 3 different scenarios for full credit. Each scenario is worth 2.0 pts and each must contain the four points described above. *You can combine parts 1-4 as you see fit in your writing to reduce redundancy, just be sure all required parts are in your answer.