Ecological genetics of beetles of the genus Adalia: composition of A. Bipunctata populations from Italy but not France depends on climatic factors

Abstract

The composition of 13 populations of Adalia bipunctata L. collected in France and Italy was studied. The proportion of black individuals varies from 7.7% to 84.7%. Comparison of the composition of color forms with climatic parameters of habitats showed that the proportion of black individuals in the Italian populations negatively correlates with the mean temperatures of the period of reproduction of beetles (May–July). No such relationship was found for the more Northern populations living in France.

Keywords

Adalia bipunctata / melanism / population / temperature / moisture

References

[1] Zakharov IA, Shaikevich EV. The Stockholm Populations of Adalia bipunctata (L) (Coleoptera: Coccinellidae) – a case of extreme female-biased population sex ratio. Hereditas. 2001;134(3): 263-266. https://doi.org/10.1111/j.1601-5223. 2001.00263.x.

[2] Захаров И.А., Рубанович А.В. Экологическая генетика жуков рода Adalia: популяции A. bipunctata Норвегии и Кольского полуострова // Экологическая генетика. – 2018. – T. 16. – № 1. – C. 49–52. [Zakharov IA, Rubanovich AV. Ecological genetics of beetles of the genus Adalia: populations of A. bipunctata of NorwAy and Kola Peninsula. Ecological genetics. 2018;16(1):49-52. (In Russ.)]. https://doi.org/10.17816/ecogen16149-52.

[3] Bengston SA, Hagen R. Melanism in the two-spot ladybird Adalia bipunctata in relation to climate in Western Norway. Oikos. 1977;28(1):16-19. https://doi.org/10.2307/3543317.

[4] Захаров И.А., Рубанович А.В. Экологическая генетика жуков рода Adalia: состав крымских популяций A. bipunctata зависит от климатических факторов // Экологическая генетика. – 2018. – T. 16. – № 1. – C. 45–48. [Zakharov IA, Rubanovich AV. Ecological genetics of beetles of the genus Adalia: population structure of A. bipunctata of the Crimea depends on climatic factors. Ecological genetics. 2018;16(1): 45-48. (In Russ.)]. https://doi.org/10.17816/ecogen16145-48.

[5] Brakefield PM, Willmer PG. The basis of thermal melanism in the ladybird Adalia bipunctata: differences in reflectance and thermal properties between morphs. Heredity. 1985;54:(1):9-14. https://doi.org/10.1038/hdy.1985.3.

[6] Jong P, Gussekloo S, Brakefield P. Differences in thermal balance, body temperature and activity between non-melanic and melanic two-spot ladybird beetles (Adalia bipunctata) under controlled conditions. J Exp Biol. 1996;199(Pt 12): 2655-2666.

RIGHTS & PERMISSIONS

Zakharov I.A., Rubanovich A.V.