J
J. van Baaren
Researcher at University of Rennes
Publications - 22
Citations - 600
J. van Baaren is an academic researcher from University of Rennes. The author has contributed to research in topics: Parasitoid & Population. The author has an hindex of 14, co-authored 22 publications receiving 518 citations. Previous affiliations of J. van Baaren include University of Rennes 1.
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Journal ArticleDOI
How does heat shock affect the life history traits of adults and progeny of the aphid parasitoid Aphidius avenae (Hymenoptera: Aphidiidae)?
TL;DR: Results show that short exposure to an elevated temperature, which is frequently experienced by parasitoids during the summer, resulted in high mortality rates in a parasitoid population and strongly affected the fitness of survivors by drastically reducing reproductive output and triggering a sex-dependent effect on lifespan.
Journal ArticleDOI
The role of larval aggression and mobility in the transition between solitary and gregarious development in parasitoid wasps
Guy Boivin,J. van Baaren +1 more
TL;DR: This work proposes an alternative hypothesis where gregarious larvae retain their aggressiveness but are less mobile, and tests this hypothesis with two sympatric and congeneric species of Mymaridae, Anaphe victus and Anaphes listronoti, respectively, which supports the reduced mobility hypothesis.
Journal ArticleDOI
Sex allocation and larval competition in a superparasitizing solitary egg parasitoid: competing strategies for an optimal sex ratio
TL;DR: The results showed that a female-biased sex ratio is allocated to unparasitized hosts in Anaphes victus, and in the presence of parasitized hosts, the second (superparasitizing) female produced a significantly higher sex ratio than the first female but the tertiary sex ratio was not significantly different from the sex ratio produced with unparasant hosts.
Journal ArticleDOI
Learning affects host discrimination behavior in a parasitoid wasp
J. van Baaren,Guy Boivin +1 more
TL;DR: Anaphes victus, an egg parasitoid of Listronotus oregonensis, apparently learns to associate external pheromones with the presence of a conspecific in a host and could be adaptive because antennal rejection is faster than sting rejection.
Book ChapterDOI
Plant–Insect Interactions in a Changing World
Sylvain Pincebourde,J. van Baaren,Sergio Rasmann,Pierre Rasmont,G. Rodet,Baptiste Martinet,Paul-André Calatayud,Paul-André Calatayud +7 more
TL;DR: It is argued that predicting the net effect of global change on plant–insect relationships requires a comprehensive understanding of the mechanisms that modulate the interaction strength between the plants and the insects, rather than on focusing on each partner individually.