Sequence of offspring sex production in the parasitoid wasp, Nasonia vitripennis, in response to unparasitized versus parasitized hosts
Article Abstract:
A study of the sequence response to unparasitized hosts in the parasitoid wasps, Nasonia vitripennis, reveals that the parasitization of hosts by the female causes the female to oviposit sons. The sequence of production of sons and daughters depends on the presence or absence of females. The differences in the sex ratio result as females oviposit sons early and reduce oviposting of total offspring. There is an increase in the clutch size production of sons in unparasitized hosts and a decrease in the proportion of sons in parasitized hosts.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1993
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Self-host discrimination by a parasitic wasp: the role of short-term memory
Article Abstract:
The female parasitoid wasp, Pimpla nipponica, use short term memory to discriminate between the hosts they has parasitized and those parasitized by conspecifics. After the females have attacked two or three hosts, she fails to reject the first parasitized host. The females fail to recognize self-parasitized hosts after induced amnesia. The different smells of hosts helps the females distinguish between self and conspecifically parasitized hosts. This indicates that short term memory plays an important role in the foraging strategies.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1996
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Nest co-occupation in the digger wasp Cerceris arenaria: cooperation or usurpation?
Article Abstract:
Time costs evaluations indicate that accepting a pre-existing nest has more payoffs than digging a new burrow amongst digger wasps, but that co-occupation of nests does not constitute mutualistic behavior amongst the wasps. Research found that 99% of female wasp would choose a pre-constructed nest over building a new one, even if the nest was occupied. While co-occupation occured and foraging duties were shared, such arrangements usually lasted only one day, with one female permanently leaving the nest.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1995
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