In the week before the trip we had an in depth discussion of salt marsh ecology in general and the specifics of Flax Pond. Topics included:
- salt marsh zonation and the distribution of plants and animals over the landscape
- the physical and chemical properties of the sediments and the "redox potential discontinuity"
- the distribution and reproductive behavior of the marsh's two fiddler crab species
- how biological interactions affect the distribution of the coffee bean snail
- the formation of salt pans and their use by juvenile horseshoe crabs
- distribution of organisms in the rocky intertidal at the inlet and non-random survival of barnacle spat
- organisms of special concern, like osprey and diamondback terrapins
Field trip students |
Students search the high marsh for coffee bean snails. |
Students showing their coffee bean snails, Melampus bidentatus. |
I show the major claw of a fiddler crap, Uca pugilator |
Droving fiddler crabs. |
2005 class (from the archives!) |
Smelling the Hydrogen Sulfide of the RPD! |
Observing the expanses of Flax Pond |