Amphibians

Representative Species

Giant toad (Bufo marinus), Squirrel treefrog (Hyla squirella), Cuban treefrog (Hyla septentrionalis).

References   Odum et al. 1982.

Biomass

Dry season biomass 2.42E-02 g C / m2
Wet season biomass 1.64E-02 g C / m2

References   Dalrymple personal communication ,  Jorgensen et al. 1991.

Dry season biomass 3.78E-03 g C / m2
Wet season biomass 2.35E-03 g C / m2



Metabolic Parameters


Production

Production has been calculated using the other parameters : P=C-E-R.

wet season 5.62E-03 g C / m2/ y
dry season 6.57E-03 g C / m2/ y


Respiration

References   Pandian and Vernberg 1987; See Salamanders in the Cypress Wetland Network.
wet season 4.35E-03 g C / m2/ y
dry season 7.44E-03 g C / m2/ y


Consumption

Annual Consumption: 6.08 kcal / g wet weight / y

References   Smith 1976.

Energetic content of food: 43.6 kJ / g carbon

References   Jorgensen et al. 1991.

Grams carbon consumed per gram wet weight per year: 0.583776758

References   Jorgensen et al. 1991.

Mass Conversion Factors

dw/ww 0.3
C/dw 0.45

References   Jorgensen et al. 1991.
wet season 1.28E-02 g C / m2/ y
dry season 1.91E-02 g C / m2/ y


Egestion

References   Pandian and Vernberg 1987; See Salamanders in the Cypress Wetland Network.

wet season 2.85E-03 g C / m2/ y
dry season 5.09E-03 g C / m2/ y

References   Jorgensen et al. 1991.

Metabolic Ratios
Respiration 0.3800
Production 0.3600
Egestion 0.2600

These ratios represent the proportions of consumption we partitioned to each of the metabolic parameters. They are based on our original calculations and not on the balanced numbers presented throughout these web pages. They should assist you if you are interested in calculating a production value for the top consumers in the system whose balanced production values are zero.

Diets

Insects 95%
Spiders 5%

References  Dalrymple personal communication,   Porter 1972,   Connant and Collins 1991.