Annals of the Entomological Society of America (1964) 57, 216-220

E. Hastings and J.H. Pepper (1964)
Population studies on the big-headed grasshopper Aulocara elliotti
Annals of the Entomological Society of America 57 (2), 216-220
Abstract: Widely separated populations of Aulocara elliotti were found to vary in several respects, but these variations could not be correlated with changes in density among the populations studied. When widely separated populations or segments of what is usually considered to be a single population were subjected to applied stresses of temperature extremes and starvation, their resistance was found to be population (area) dependent. Mechanisms such as genetic segregation, physiological degradation, and environment are discussed as possible explanations of population response and behaviour. No single factor appears to provide a reasonable explanation. A case is presented to demonstrate the existence of subpopulations or even separate populations within a narrowly defined area of occurrence.
(The abstract is excluded from the Creative Commons licence and has been copied from Acridological Abstracts with permission by NRI, Univ. of Greenwich at Medway.)

Research topic(s) for pests/diseases/weeds:
population dynamics/ epidemiology

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Aulocara elliotti