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Onvoorspelbare bijvlieg Eristalis similis

Foto: Martien van den Heuvel

Indeling

Syrphidae [familie]
Eristalis [genus] (15/13)
similis [soort]

Fairly common. More common before 1950, no trend since. Various habitats. Rare in most years, but sometimes common. Migration is a possible explanation for the strong fluctuations, but this seems unsatisfactory. A possibly better explanation is provided by a population-dynamic model by Zeegers (1991).

Bron

Auteur(s)

Zeegers, Th., Renema, W.

Publicatie