Model of Loladze, Kuang and Elser modified from model of T. Andersen

1
Model of Loladze, Kuang and Elser (modified from
model of T. Andersen)
y' (t) emin (1,
) f (x)y - dy
Grazer
Producer
From Loladze, I, Y. Kuang, and J.J. Elser.
2000. Stoichiometry in producer-grazer systems
linking energy flow and element cycling. Bull.
Math. Biol. 62 1137-1162.
2
Model of Loladze, Kuang and Elser (modified from
model of T. Andersen)
light
From Loladze, I, Y. Kuang, and J.J. Elser.
2000. Stoichiometry in producer-grazer systems
linking energy flow and element cycling. Bull.
Math. Biol. 62 1137-1162.
3
Model of Loladze, Kuang and Elser (modified from
model of T. Andersen)
Grazer
From Loladze, I, Y. Kuang, and J.J. Elser.
2000. Stoichiometry in producer-grazer systems
linking energy flow and element cycling. Bull.
Math. Biol. 62 1137-1162.
4
Experimental Test of the LightNutrient Hypothesis
"Aquatron" Experiment (summer 2000) by Urabe and
Elser
5
Aquatron Dynamics
(Extra) High Light (380 µE / sq m / s)
Low Light (40 µE / sq m / s)
High Light (310 µE / sq m / s)
Daphnia
Algal PC
Algal C
C transfer efficiency 30
C transfer efficiency 7
Urabe, J., J.J. Elser, M. Kyle, T. Sekino and Z.
Kawabata. 2002. Herbivorous animals can
mitigate unfavorable ratios of energy and
material supplies by enhancing nutrient
recycling. Ecology Letters in press.