• Publications
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The voyage of an invasive species across continents: genetic diversity of North American and European Colorado potato beetle populations
TLDR
Investigating the invasion of the Colorado potato beetle from North America to Europe found a similar, high level of population structure and low gene flow among populations on both continents, suggesting a single successful founder event.
Predator Mixes and the Conspicuousness of Aposematic Signals
TLDR
The effects of variable predators on models that combine positive frequency‐ dependent, frequency‐independent, and negative frequency‐dependent predation are explored and it is shown that weak signaling of aposematic species can evolve if predators vary in their tendency to attack defended prey.
Imperfect Batesian mimicry—the effects of the frequency and the distastefulness of the model
TLDR
The experiment supports the most classical predictions in the theories of the origin and maintenance of Batesian mimicry: Batesian mimics gain most when the models outnumber them and the models survived significantly better the more distasteful they were.
Energetic costs of size and sexual signalling in a wolf spider
TLDR
The results indicate that sexual signalling in the wolf spider Hygrolycosa rubrofasciata (Ohlert) is highly energetically demanding, which may be the main reason for the honesty of signalling in this species.
The complex business of survival by aposematism.
Diet affects the immune defence and life-history traits of an Arctiid moth Parasemia plantaginis
TLDR
The ability of P. plantaginis to encapsulate a foreign object varies depending on the host plant species and that the ability corresponds with the amount of antioxidants in the diet, but other fitness measures did not correlate with encapsulation ability.
FLUCTUATING TEMPERATURE LEADS TO EVOLUTION OF THERMAL GENERALISM AND PREADAPTATION TO NOVEL ENVIRONMENTS
TLDR
While supporting the hypothesis that evolution of generalism is coupled with tolerance to several novel environments, the results suggest that thermal fluctuations driven by the climate change could affect both species’ invasiveness and virulence.
Does predation maintain eyespot plasticity in Bicyclus anynana?
TLDR
The results show that natural selection acts against eyespots in the dry season, favouring crypsis, whereas in the wet season it may favour eyespots as deflective patterns.
SEXUAL SELECTION WHEN FERTILIZATION IS NOT GUARANTEED
  • H. Kokko, J. Mappes
  • Biology
    Evolution; international journal of organic…
  • 1 September 2005
TLDR
It is suggested that changes in choosiness between populations, and in particular between virgin and mated females, offer an efficient way to test the hypothesis that male limitation form a selection for female traits that improve their mating rate.
Disruption or aposematism? Significance of dorsal zigzag pattern of European vipers
TLDR
It is found that zigzag patterned snake replicas suffered less predation than striped ones regardless of the background, providing further evidence that the zigzig pattern of European vipers functions as a warning signal against predators.
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