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2012
Journal article
Parasitism and migration in southern Palaearctic populations of the painted lady butterfly, Vanessa cardui (Lepidoptera: Nymphalidae)
The painted lady butterfly (Vanessa cardui) (Lepidoptera: Nymphalidae: Nymphalinae) is well known for its seasonal long-distance migrations and for its dramatic population fluctuations between years. Although parasitism has occasionally been noted as an important mortality factor for this butterfly, no comprehensive study has quantified and compared its parasitoid complexes in... -
2015
Journal article
Determinants of parasitoid communities of willow-galling sawflies: habitat overrides physiology, host plant and space
Studies on the determinants of plant–herbivore and herbivore–parasitoid associations provide important insights into the origin and maintenance of global and local species richness. If parasitoids are specialists on herbivore niches rather than on herbivore taxa, then alternating escape of herbivores into novel niches and delayed resource tracking by parasitoids could...Nyman, Tommi ; Leppänen, Sanna ; Várkonyi, Gergely ; Shaw, Mark R ; Koivisto, Reijo …
enemy-free space, tritrophic food webs, vertical diversification effects, speciation, and community barcoding