The association of feeding behavior with the resistance and tolerance to parasites in recently diverged sticklebacks

Divergent natural selection regimes can contribute to adaptive population divergence, but can be sensitive to human-mediated environmental change. Nutrient loading of aquatic ecosystems, for example, might modify selection pressures by altering the abundance and distribution of resources and the prevalence and infectivity of parasites. Here, we used a mesocosm experiment to test for interactive effects of nutrient loading and parasitism on host condition and feeding ecology. Specifically, we investigated whether the common fish parasite Gyrodactylus sp. differentially affected recently diverged lake and stream ecotypes of three-spined stickleback (Gasterosteus aculeatus). We found that the stream ecotype had a higher resistance to Gyrodactylus sp. infections than the lake ecotype, and that both ecotypes experienced a cost of parasitism, indicated by negative relationships between parasite load and both stomach fullness and body condition. Overall, our results suggest that in the early stages of adaptive population divergence of hosts, parasites can affect host resistance, body condition, and diet.

An evaluation of driver behavior at signalized intersections. Final report.

Arizona Department of Transportation, Phoenix

Psychological analysis of economic behavior.

Bibliography: p. 335-340.

Psychological analysis of economic behavior.

Bibliography: p. 335-340.

Business looks at banks; a study of business behavior,

"This report is based on a nation-wide sample interview survey conducted by the Survey Research Center of the University of Michigan."

The Old English version of the enlarged rule of Chrodegang together with the Latin original. An Old English version of the Capitula of Theodulf together with the Latin original. An interlinear Old English rendering of the Epitome of Benedict of Aniane.

"A fuller introduction, together with notes and a glossary, is in preparation."--Temporary pref.

Measurement of pedestrian behavior: a handbook for identifying the behaviors to measure and the measurement systems for use in countermeasure evaluation. Interim report.

National Highway Traffic Safety Administration, Washington, D.C.

Instrumentation for measurement of structural behavior of concrete gravity structures.

Cover title.

Psychology of child behavior,

"Selected references" at end of each chapter except the last; "General references": p.635-647.

The science of human behavior; biological and psychological foundations,

"Partial bibliography": p. 425-436.

The southern oligarchy; an appeal in behalf of the silent masses of our country against the despotic rule of the few.

Mode of access: Internet.

The theory and application of colloidal behavior, contributed by the foremost authorities in each division of the subject;

"References" at end of some of the chapters.