Hostname: page-component-78c5997874-xbtfd Total loading time: 0 Render date: 2024-11-18T21:50:54.951Z Has data issue: false hasContentIssue false

The production of distribution maps of the incubation and hopper development periods of the desert locust Schistocerca gregaria (Forsk.) (Orthoptera, Acrididae)

Published online by Cambridge University Press:  10 July 2009

P. M. Symmons
Affiliation:
Centre for Overseas Pest Research, College House, Wrights Lane, London W8 5SJ
S. M. Green
Affiliation:
Centre for Overseas Pest Research, College House, Wrights Lane, London W8 5SJ
R. A. Robertson
Affiliation:
Centre for Overseas Pest Research, College House, Wrights Lane, London W8 5SJ
K. G. Wardhaugh
Affiliation:
Centre for Overseas Pest Research, College House, Wrights Lane, London W8 5SJ

Abstract

This paper describes the method used to produce maps of the incubation and hopper development periods of the desert locust Schistocerca gregaria (Forsk.). From these maps it is possible to calculate the likely development periods of eggs and hoppers for, respectively, laying and hatching on any date and at any place within the invasion area of the species. Maps could not be based on actual observations of development periods because such observations are few in number, irregular in distribution and are not for standard dates. Instead, expected mean development periods for laying and hatching on the first of each month were calculated for a large number of meteorological stations for which long-term mean temperatures were available, using relationships between the rates of development and mean daily screen temperatures. These relationships were, in the main, derived from earlier work by one of the authors (K.G.W.) and his associates. Some assessment has been made of the accuracy of development periods derived from the maps.

Type
Original Articles
Copyright
Copyright © Cambridge University Press 1974

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Bodenheimer, F. S. (1929). Studien zur Epidemiologie, Ökologie und Physiologie der afrikanischen Wanderheuschrecke (Schistocerca gregaria Forsk.).—Z. angew. Ent. 15, 435557.CrossRefGoogle Scholar
Dudley, B. A. C. (1961). Studies on the biology of locusts when reared under controlled conditions.—149 pp. Ph.D. thesis, University of Wales, Cardiff.Google Scholar
Hamilton, A. G. (1936). The relation of humidity and temperature to the development of three species of African locustsLocusta migratoria migratorioides (R. & F.), Schistocerca gregaria (Forsk.), Nomadacris septemfasciata (Serv.).—Trans. R. ent. Soc. Lond. 85, 160.Google Scholar
Hamilton, A. G. (1950). Further studies on the relation of humidity and temperature to the development of two species of African locustsLocusta migratoria migratorioides (R. & F.) and Schistocerca gregaria (Forsk.).—Trans. R. ent. Soc. Lond. 101, 158.Google Scholar
Hunter-Jones, P. (1966). Studies on the genus Schistocerca with special reference to development.—171 pp. Ph.D. thesis, University of London.Google Scholar
Husain, M. A. & Ahmad, T. (1936). Studies on Schistocerca gregaria Forsk. II. The biology of the desert locust, with special relation to temperature.—Indian J. agric. Sci. 6, 188262.Google Scholar
Husain, M. A., Ahmad, T. & Mathur, C. B. (1940). Studies on Schistocerca gregaria Forsk. X. Role of water in the bionomics of the desert locust.—Indian J. agric. Sci. 10, 927944.Google Scholar
Husain, M. A., Mathur, C. B. & Roonwal, M. L. (1946). Studies on Schistocerca gregaria Forsk. XIII. Food and feeding habits of the desert locust.—Indian J. Ent. 8, 141163.Google Scholar
Symmons, P. M., Green, S. M., Robertson, R. A. & Wardhauoh, K. G. (1973). Incubation and hopper development periods of the desert locust; guide and maps.—11 pp. + 156 maps. London, Centre for Overseas Pest Research.Google Scholar
Wardhaugh, K., Ashour, Y., Ibrahim, A. O., Khan, A. M. & Bassonbol, M. (1969). Experiments on the incubation and hopper development periods of the desert locust (Schistocerca gregaria Forsk.) in Saudi Arabia.—Anti-Locust Bull. no. 45, 38 pp.Google Scholar