Now showing items 1-8 of 8
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 ...
Species as historical individuals
(Kluwer Academic Publishers; Springer Science+Business Media, 1990-10)
The species category is defined as the smallest historical individual within which there is a parental pattern of ancestry and descent. The use of historical individual in this definition is consistent with the prevailing ...
An epidemiological model of the corn stunt system in Central America
(Elsevier, 1990)
There is increasing appreciation on the part of ecologists of the crucial role that pathogens may play in the structure of plant populations and communities. This study used classic equations of epidemiology to analyze ...
A COMPARATIVE STUDY OF THE DEFENSE SYNDROMES OF SOME NEW ZEALAND MARINE CRUSTACEA
(Brill Academic Publishers; Koninklijke Brill, Leiden 2000 ; Springer Science+Business Media, 2000-10)
Five sympatric species of intertidal decapod crustaceans were studied in the field and laboratory with regard to the mechanisms used for predator defense. The species are sympatric and represent a gradient from high ...
Spatio-temporal pattern of viral meningitis in Michigan, 1993-2001
(Springer-Verlag; Springer-Verlag Berlin Heidelberg, 2005-05)
To characterize Michigan’s high viral meningitis incidence rates, 8,803 cases from 1993–2001 were analyzed for standard epidemiological indices, geographic distribution, and spatio-temporal clusters. Blacks and infants ...
Emerging and vector-borne diseases: Role of high spatial resolution and hyperspectral images in analyses and forecasts
(Springer-Verlag; Springer-Verlag Berlin Heidelberg, 2002-03)
Many infectious diseases that are emerging or transmitted by arthropod vectors have a strong link to landscape features. Depending on the source of infection or ecology of the transmitting vector, micro-habitat characteristics ...
The qualitative behavior of coupled predator-prey oscillations as deduced from simple circle maps
(Elsevier, 1994-05)
Qualitative patterns of the non-equilibrium behavior of coupled consumer/resource systems, formulated as a standard circle map, are explored. Patterns of demographic locking, reflected as a "devil's staircase", are observed ...