By Pierre Jolivet (auth.), P. Jolivet, E. Petitpierre, T. H. Hsiao (eds.)
As in so much teams of bugs, medical learn at the Chrysomelidae begun in Europe in 1758, with the outline of some genera and species via the Scandinavian entomologists C. von Linne, I.C. Fabricius, and others. because the nineteenth century dawned, many systematic entomologists took up the examine of chrysomelid beetles, including different teams of beetles, and plenty of new species and genera have been defined from all elements of the area. This development has, in fact, endured right down to the current time. notwithstanding, researches at the Chrysomelidae didn't stay constrained to systematics, and lots of new strains of research were undefined, particularly within the current century, via employees who've benefitted from the advances made in similar fields of natural and utilized entomology. a lot has been completed within the learn of the Chrysomelidae, as somewhere else, and it's the target of the current ebook to supply a precis and advisor to those achievements. it's also to be anticipated that this publication will supply a stimulus for extra reports at the Chrysomelidae, in order that we will be able to expect carrying on with development in our wisdom and knowing of this workforce during the endeavours of an ever-increasing variety of scientists. I supply my congratulations to all involved within the practise of this publication and my most sensible needs for its success.
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A. 1981. The Biology of Coleoptera. Acad. Press Inc. London, 802 pp. Ehrenfeld, D. 1986. Thirty million cheers for diversity. New Scient. 1512: 38-43. Erwin, T. L. 1982. Tropical forests: their richness in Coleoptera and other Arthropod species. Col. Bull. 36(1): 74-75. Erwin, T. L. 1983. Tropical forcst canopies: the last biotic frontier. Bull. ESA: 14-19. 22 Erwin, T. L. 1983. Tropical rain forest: ecology and management. Blackwell Sc. Publ. Oxford: 59-75. Furth, D. G. 1985. Some flea beetles and their food-plants from Kenya (Chrys.
From that basic oligophagy, the subfamily became in many genera polyphagous and feed on many wild and cultivated plants, especially in monocultures such as soja, cacao, cotton, sweet-potato etc. The recorded foodplants is as follows: 4 families of Gymnospermae (Coniferae), 15 families of Monocotyledons and 97 families of Dicotyledons. The larvae feed on roots and are totally polyphagous. 4. 1. Chrysome/inae Feeding habits of the subfamily are relatively well known and most of the genera have at least one of their host-plants reported.
Some archaic groups like the Megalopodinae cut shoots and feed on exuding sap. That way of feeding is rather unique among the Chrysomelidae. They are stem-borers at the larval stage. Has evolution stopped among leaf beetles? This does not seem the case. Among many highly evolved insects such as the tortoise beetles and the Hispinae, evolution seems to have reached a dead end. On the contrary, among other groups like the Timarcha mostly in the Pyrenean mountains, Spain, West Morocco, Algeria it seems that evolution is still going on.