Refer to the figure.   The figure shows examples of possible disturbance intensity (y-axis) and frequency (x-axis) combinations. What type of succession occurs after the disturbance in C?

Refer to the figure.   In Farrell’s (1991) work on algal succession, the presence of limpets had what effect on the growth of algae?

Refer to the figure. The figure shows the relationship between size of habitat and the number of mammalian species. According to the figure, we would expect a habitat that is 5,000 square kilometers to have _______ species of mammals.

Refer to the figure.   In graphs B and C above, each curve represents a separate species. Suppose a field study shows that species richness is higher in the graph B community than in the graph C community. This would most likely happen because  

The Shannon index is a measure of

Which of the following is a true property about agar that makes it useful to add to media to culture microbes.

The National Pollutant Discharge Elimination System (NPDES) is a cornerstone of modern environmental law. According to the lecture, which landmark federal legislation established this system, and what is its primary function?

Describe how our current energy, transportation, and food systems contribute to climate change and health problems (3 sentences minimum) and provide one example of how to reduce greenhouse gases and health problems in each of these sectors (3 sentences minimum).

Which of the following reactions is a single replacement reaction? A) Zn(s)+CuSO4(aq)→ZnSO4(aq)+Cu(s)Zn (s) + CuSO_4 (aq) \rightarrow ZnSO_4 (aq) + Cu (s) B) AgNO3(aq)+NaCl(aq)→AgCl(s)+NaNO3(aq)AgNO_3 (aq) + NaCl (aq) \rightarrow AgCl (s) + NaNO_3 (aq) C) H2SO4(aq)+NaOH(aq)→Na2SO4(aq)+H2O(l)H_2SO_4 (aq) + NaOH (aq) \rightarrow Na_2SO_4 (aq) + H_2O (l) D) C3H8(g)+O2(g)→CO2(g)+H2O(g)C_3H_8 (g) + O_2 (g) \rightarrow CO_2 (g) + H_2O (g)

Agricultural operations, particularly those involving large-scale livestock (CAFOs) and heavy fertilizer use, are major sources of phosphorus runoff. What are the mechanism(s) by which excess phosphorus leads to the development of toxic “Harmful Algal Blooms” (HABs) in surface waters?