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3 resultados encontrados para: AUTOR: Klompen, Hans
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1.
- Artículo con arbitraje
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Ant parasitoidism has been reported in seven of the 26 recognized species of the mite genus Macrodinychus (Machrodynichidae). Macrodynichus sellnicki, previously reported as a parasitoid of the invasive ant Nylanderia fulva in Colombia, is now reported, in the same region, as attacking a native host, Ectatomma sp. 2 (E. ruidum complex). The mite develops within the protective silk cocoon of an Ectatomma pupa and waits for the emergence of the young ant before leaving the cocoon, unmolested. Overall nest prevalence was relatively high (34.6% of the 52 nests containing cocoons) but pupae prevalence was low (4.0%, n=1401 cocoons). Mite life-history (parasite or parasitoid) was context dependent, shifting according to the intensity of the attack on a same host. Contrary to the strictly parasitoidic association of M. sellnicki with N. fulva, single mite attacks against E. ruidum did not result in host killing and solitary M. sellnicki (78.6% of the cases) behaved as parasites. However, in 21.4% of the attacks (0.9% of all available host pupae) more than one mite was involved and behaved as parasitoids, draining the host of its internal fuids and killing it. This is the frst association of a macrodinychid mite with a species of the subfamily Ectatomminae, and the frst ant associated mite for which such a context dependent life-style shift is described.


2.
- Artículo con arbitraje
Macrodinychus mites as parasitoids of invasive ants: an overlooked parasitic association
Lachaud, Jean Paul ; Klompen, Hans (coaut.) ; Pérez Lachaud, Gabriela (coaut.) ;
Contenido en: Scientific Reports Vol. 6, no. 29995 (2016), p. 1-10 ISSN: 2045-2322
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Resumen en: Inglés |
Resumen en inglés

Mites are frequent ant symbionts, yet the exact nature of their interactions with their hosts is poorly known. Generally, myrmecophilous mites show adaptations for dispersal through phoresis, but species that lack such an adaptation may have evolved unusual specialized relationships with their hosts. The immature stages of Macrodinychus multispinosus develop as ectoparasitoids of pupae of the invasive ant Paratrechina longicornis. Feeding stages show regressed locomotor appendages. These mites complete their development on a single host, sucking all of its body content and therefore killing it. Locally high proportions of parasitized host pupae suggest that M. multispinosus could serve as a biological control agent. This is the ninth species of Macrodinychus reported as ant parasite, and the third known as parasitoid of invasive ants, confirming a unique habit in the evolution of mite feeding strategies and suggesting that the entire genus might be parasitic on ants. Several mites’ characteristics, such as their protective morphology, possible viviparity, lack of a specialized stage for phoretic dispersal, and low host specificity, combined with both the general low aggressiveness of invasive P. longicornis towards other ants and its possible susceptibility to generalist ectoparasites would account for the host shift in native macrodinychid mites.


3.
Libro
Entomología mexicana, vol. 6 / editores: Edith G. Estrada Venegas, Armando Equihua Martínez, Cándido Luna León, José Luís Rosas Acevedo
Estrada Venegas, Edith G. (editora) ; Equihua Martínez, Armando (editor) ; Luna León, Cándido (editor) ; Rosas Acevedo, José Luís (editor) ;
Texcoco, Estado de México, México : Sociedad Mexicana de Entomología :: Colegio de Postgraduados , 2007
Clasificación: 595.7 / C6/2007
Bibliotecas: San Cristóbal , Tapachula
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