Now showing items 1-10 of 47
Comments on rarity and chaos, Thomas D. Rogers, math. biosci. 72:13-18 (1984)
(Elsevier, 1985-03)
Kinetics of nitrogen and phosphorus release in varying food supplies by Daphnia magna
(Kluwer Academic Publishers; Dr. W. Junk Publishers ; Springer Science+Business Media, 1982-10)
Rates of nitrogen and phosphorus release from individual Daphnia magna were determined by measuring ammonia and soluble reactive phosphorus in successive 10-min incubations in small (0.05 ml) vessels after the animals were ...
Quality of life and environmental constraints: An annotated bibliography
(CPL Bibliographies, 1983)
The economic profession implicitly assumes that satisfaction and happiness are not directly measurable. Thus, economists have worked at developing indicators, usually counted in dollars, to act as proxies for these ...
An ecologically-based approach to the design of intercrop agroecosystems: An intercropping system of soybeans and tomatoes in Southern Michigan
(Elsevier, 1984-10)
A model is developed in which the elementary structure of plant competision is translated into the classical yield-density equation. Using the same reasoning, an interspecific form of the model is formulated to predict ...
A yield model for walking catfish production in aquaculture systems
(Elsevier, 1988-06-15)
A yield model for Clarias culture was produced using a combination of laboratory data for Clarias lazera and field data on Clarias batrachus culture in Thailand. The model was used for simulations to fulfil three distinct ...
The effects of water exchange rate and density on yield of the walking catfish, Clarias fuscus
(Elsevier, 1989-06)
High stocking densities (600 fish/m3) of walking catfish resulted in slightly higher mortality rate, no difference in growth rate, and a much higher yield than low density stocking (300 fish/m3). Water flow rate (10, 5, ...
The Aesthetics of Horticulture: Neatness as a Form of Care
(American Society for Horticultural Science, 1988)
Perceived care of the landscape is a primary determinant of landscape attractiveness. Care is typically recognized in the neatness of a landscape; evennes of turn or crop color, placement of ornamental plants, use of fences ...
A general numerical model for evaluating size limit regulations with application to Michigan bluegill (Lepomis macrochirus Rafinesque) (Fisheries research report: 1897)
(Michigan Department of Natural Resources, Fisheries Division; Lansing, MI, 1981)
Stream resource utilization of sympatric and allopatric juvenile brown (Salmo trutta) and steelhead trout (Salmo gairdneri) (Fisheries research report: 1957)
(Michigan Department of Natural Resources, Fisheries Division; Lansing, MI, 1988)