Superparasitism, immune response and optimum progeny yield in the gregarious parasitoid Palmistichus elaeisis

dc.creatorPereira, Kleber de S
dc.creatorGuedes, Nelsa Maria P
dc.creatorSerrão, José E
dc.creatorZanuncio, José C
dc.creatorGuedes, Raul Narciso C
dc.date2017-11-24T11:25:07Z
dc.date2017-11-24T11:25:07Z
dc.date2017-02-27
dc.date.accessioned2023-09-27T21:17:17Z
dc.date.available2023-09-27T21:17:17Z
dc.identifier15264998
dc.identifierhttps://doi.org/10.1002/ps.4534
dc.identifierhttp://www.locus.ufv.br/handle/123456789/13604
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8958010
dc.descriptionThe subsequent deposition of an egg clutch by a female parasitoid into a host already parasitised either by itselfor a conspecific (i.e. superparasitism) is a counterintuitive adaptive strategy, particularly considering the female parasitoid’s ability to recognise the parasitised hosts. Such a scenario suggests that the adaptive value of superparasitism depends on the number of clutches laid in the same host, with consequences for parasitoid progeny yield. Here, we tested whether such is the case for the gregarious parasitoid Palmistichus elaeisis and explored its underlying basis. Allowing female parasitoids to lay multiple egg clutches in a single melonworm host pupa, parasitoid progeny and fitness exhibited a peak or optimum at three egg clutches laid per host pupa. In addition, haemocyte count, encapsulation and melanisation decreased with the number of egg clutches laid per host pupa. An optimum number of three clutches laid per host pupa was detected for P. elaeisis. As immune response via haemocyte production, encapsulation and melanisation decreased with the number of clutches laid per host, the higher para- sitoid yield and fitness observed is the likely consequence of a compromised immune response coupled with an accommodative (i.e. scramble) larval competitive strategy allowing enough resources for optimum balance of parasitoid number and quality produced.
dc.formatpdf
dc.formatapplication/pdf
dc.languageeng
dc.publisherPest Management Science
dc.relationVolume 73, Issue 6, Pages 1101–1109, June 2017
dc.rightsOpen Access
dc.subjectLarval competition
dc.subjectIntrinsic parasitoid competition
dc.subjectIdiobiont parasitoid
dc.subjectImmunity
dc.subjectHaemocyte
dc.subjectEncapsulation
dc.titleSuperparasitism, immune response and optimum progeny yield in the gregarious parasitoid Palmistichus elaeisis
dc.typeArtigo


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