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Pygidial defensive titer and population structure ofAgabus bipustulatus L. andAgabus paludosus F. (Coleoptera, Dytiscidae) (1983)

Classen, Regine ; Dettner, Konrad

Springer

Journal of chemical ecology 9 (1983), S. 201-209

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ISSN: 1573-1561

Keywords: Coleoptera ; Dytiscidae ; pygidial glands ; aromatic defensive secretions ; age classes ; seasonal variation ; Agabus bipustulatus ; Agabus paludosus

Source: Springer Online Journal Archives 1860-2000

Topics: Biology , Chemistry and Pharmacology

Notes: Abstract Aromatic pygidial gland constituents ofAgabus bipustulatus L. andA. paludosus F. were quantitatively determined. Concentration fluctuations were found to be dependent on age and season. Both in quantity and quality of the secretion, young beetles differ from mature beetles by storing only small amounts of gland material with different portions of constituents. Seasonal variations are mainly due to the changing population structure of the species.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00988037

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