You and a friend go on a hike along a creek bed near your home. you notice that there are some fallen limbs braced against river rocks, creating a large pool
upstream. you decide to check it out and realize that the water closest to the bank is completely stagnant. you point this out to your friend, and together you
ponder the impacts this might have on the ecosystem. you both make predictions. your friend believes that this small pool will provide resources for new
species; he suggests that amphibians could lay their eggs in the pool, or perhaps it'll allow for more algae to grow. you chime in and mention that this pool
will likely impact the insects in the area the most. you devise a plan to monitor the site for the next year.