Food chains and webs - University of Hawaii

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FOOD CHAINS AND FOOD WEBS
I. Food chain models
A. How to construct a systems model
1. The boxes or state variables
i. what the boxes are
ii. what the boxes contain
iii. how to measure what's in the boxes
2. The arrows or transfer functions
i. what the arrows mean
ii. how to measure what's in the arrows
3. What a food chain model means
B. Efficiency of food chains
1. What does efficiency mean?
2. Pyramids in nature
C. The reality of trophic levels
II What moves?
A. Energy
1) Form C_C bonds
2) 2nd law of thermodynamics - loss
B. Matter
1) Carbon
2) Nitrogen
3) Phosphorus
4) other nutrients
III. Other views - Food webs
Allen & Hoefstra 1992 Toward a Unified Ecology Columbia University Press
Arruda, J A. et al. The Role of Suspended Sediments in the Nutrition of Zooplankton in Turbid
Reservoirs. Ecology: 64: 1225–1235.
Baird D, Asmus H, Asmus R . 2007. Trophic dynamics of eight intertidal communities of the
Sylt-Romo Bight ecosystem, northern Wadden Sea. Marine Ecology-Progress Series 351:
25-41.
Benke, A C. et al. 1997 Trophic basis of production among riverine caddisflies: implications for
food web analysis. Ecology: 78: 1132–1145.
Bowen, S H. et al. 1995: Dietary Protein and Energy as Determinants of Food Quality: Trophic
Strategies Compared. Ecology: 76: 899–907.
Burdon FJ, Harding JS. 2008. The linkage between riparian predators and aquatic insects across
a stream-resource spectrum. Freshwater Biology 53: 330-346.
DeMott, W R., & Tessier, A J. 2002. Stoichiometric constraints vs. Algal defenses: testing
mechanisms of zooplankton food limitation. Ecology 83: 3426–3433.
Duke, K. M., & Crossley, D. A.. 1975: Population Energetics and Ecology of the Rock
Grasshopper, Trimerotropis saxatilis. Ecology: 56: 1106–1117.
Fath BD, Halnes G. 2007. Cyclic energy pathways in ecological food webs. Ecological
Modelling 208: 17-24.
Gratton C, Donaldson J, vander Zanden MJ. 2008. Ecosystem linkages between lakes and the
surrounding terrestrial landscape in northeast Iceland. Ecosystems 11: 764-774.
Gross, T., L. Rudolf, S. A. Levin and U. Diekmann. 2009. Generalized models reveal stabilizing
factors in food webs. Science. 325: 747-750.
Huang IY, Lin YS, Chen CP, et al. 2007. Food web structure of a subtropical headwater stream.
Marine And Freshwater Research 58: 596-607.
Jennings S, De Oliveira JAA, Warr KJ. 2007. Measurement of body size and abundance in tests
of macroecological and food web theory. Journal Of Animal Ecology 76: 72-82.
Laws, E. A. 2008. Food-web structure and planktonic predator-prey relationships in two
eutrophic European lakes: Stability constraints on carbon fluxes. Limnology And
Oceanography 53: 760-772 .
McCullough, D A. et al. 1979: Bioenergetics of Lotic Filter-Feeding Insects Simulium spp..
(Diptera) and Hydropsyche occidentalis (Trichoptera) and their Function in Controlling
Organic Transport in Streams. Ecology: 60: 585–596.
Meysman FJR, Bruers S. 2007. A thermodynamic perspective on food webs: Quantifying
entropy production within detrital-based ecosystems. Journal Of Theoretical Biology 249:
124-139.
Moulder, B. C. & Reichle, D. E.. 1972: Significance of Spider Predation in the Energy Dynamics
of Forest-Floor Arthropod Communities. Ecological Monographs: 42:. 473–498.
Norby, R et al. 2006: Nitrogen uptake, distribution, turnover, and efficiency of use in a CO2enriched sweetgum forest. Ecology: 87: 5–14.
Odum 1971 Environment Power and Society John Wiley & Sons
Pasquaud S, Lobry J, Elie P . 2007. Facing the necessity of describing estuarine ecosystems: a
review of food web ecology study techniques. Hydrobiologia 588: 159-172.
Patten 1971 Systems Analysis and Simulation in Ecology Academic Press
Peterson et al. 198 Multiple stable isotopes used to trace the flow of organic matter in estuarine
food webs. Science 227: 1361
Pimm, S.L. 1982. Food Webs. Chapman & Hall
Rooney N, McCann KS, Moore JC. .2008. A landscape theory for food web architecture.
Ecology Letters 11: 867-881.
Schiesari L, Werner EE, Kling GW. 2009. Carnivory and resource-based niche differentiation in
anuran larvae: implications for food web and experimental ecology. Freshwater Biology
54: 572-586.
Schroeder, L. 1969: Population Growth Efficiencies on Laboratory Hydra Pseudoligactis Hyman
Populations. Ecology: 50: 81–86.
Small MJ, Doyle MW, Fuller RL, et al. 2008. Hydrologic versus geomorphic limitation on
CPOM storage in stream ecosystems. Freshwater Biology 53: 1618-1631.
Taghon, G L. & Jumars, P A. 1984: Variable Ingestion Rate and Its Role in Optimal Foraging
Behavior of Marine Deposit Feeders. Ecology: 65: 549–558.
Yi L, You WH, Li C, et al. 2009. Pansystems ecology, management and knowledge rediscovery.
Kybernetes 38: 239-253.
Efficiencies of energy transfer
(n = trophic level)
1. Assimilation
efficiency
Assimilation at n
Ingestion at n
2. Ecological Growth
efficiency
Net productivity at n
Ingestion at n
3. Tissue Growth
efficiency
Net productivity at n
Gross productivity at n
4. Biological
efficiency
Gross productivity at n
Gross productivity at (n-1)
5. Ecological
efficiency
Ingestion at n
Ingestion at (n-1)
6. Net efficiency
Net Productivity at n
Net productivity at (n-1)
7. Food Chain efficiency
Ingestion at n
Energy available to (n-1)
8. Ingestion efficiency
Ingestion at n
Net productivity at (n-1)
9. Exploitation
efficiency
Ingestion of food
Prey production
10. Assimilation
efficiency
Assimilation
Ingestion
11. Net production
efficiency
Production
Assimilation
12. Gross production
efficiency
Production
Ingestion
13. Ecological
efficiency
Consumer production
Prey production
~ Gross Primary Production
a measure of food conversion
efficiency
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