332

coal equivalents) that went into the production of 1 kcal

of Wood Stork is the Wood Stork's "energy quality." Sun

energy in kcal is divided by 2000 (2000 kcal sun energy/1

kcal coal energy) to convert to coal equivalents. The

energy quality of a Wood Stork by this rough calculation is

7000 kcal, coal equivalents. One kilocalorie "coal

equivalents" is defined as that amount of energy of a given

type required to produce 1 kcal of coal (Odum and Odum,

1976). In the case of sunlight, approximately 2,000 kcal

are needed to produce 1 kcal of coal (Odum and Odum, 1976).




 Observations from Model III and the Field Study

 Production of small forage fish in the seasonally

fluctuating wetlands of south Florida is a function of, at

least five major factors that vary from one local to

another and from one year to the next. These factors are

the regional-scale hydroperiod, average high water depth,

distance from recruitment source, size of recruitment

stock, and size of predator fish populations. In any year,

production of prey fish for Wood Storks depends more upon

the duration and extent of flooding than on the

availability of food for the fish. Only in years of

maximum flooding and when several wet years occur

sequentially could food supplies become limiting. In years

such as these the abundance of predatory fish becomes

another factor limiting prey fish populations. Because the