A Simulation Model for an Acarine Predator-Prey System (Phytoseiulus persimilis-tetranychus urticae)

10.2307/4485 ◽  
1985 ◽  
Vol 54 (2) ◽  
pp. 375 ◽  
Author(s):  
C. Bernstein
Keyword(s):  
Simulation Model ◽  
Tetranychus Urticae ◽  
Phytoseiulus Persimilis ◽  
Predator Prey ◽  
Prey System

scholarly journals A predator-prey system: Phytoseiulus persimilis (Acari: Phytoseiidae) and Tetranychus urticae (Acari: Tetranychidae): worldwide occurrence datasets

Acarologia ◽  
2019 ◽  
Vol 59 (3) ◽  
pp. 301-307
Author(s):  
Alain Migeon ◽  
Marie-Stéphane Tixier ◽  
Maria Navajas ◽  
Vassilis D. Litskas ◽  
Menelaos C. Stavrinides
Keyword(s):  
Tetranychus Urticae ◽  
Phytoseiulus Persimilis ◽  
Mite Species ◽  
Predator Prey ◽  
Individual Level ◽  
Climate Change Effects ◽  
Prey System ◽  
Modelling Studies ◽  
The Individual ◽  
First Time

The predator-prey system Phytoseiulus persimilis Athias-Henriot (Acari: Phytoseiidae) and Tetranychus urticae (Koch) (Acari: Tetranychidae) represents the most studied and the most known system among the Acari. Because of the agronomical importance of the two mite species, a wealth of modelling studies investigated the interactions of the two species at the individual level. However, regional or global level works on this system are lacking, which is impeding the investigation of climate change effects on biological control effectiveness. Here we compile and geo-locate worldwide occurrences for the two species considered, based on literature, collection and field survey data. The datasets presented in this document gather most of the literature records of both species for which locality data were available for geo-referencing (1,037 for T. urticae and 126 for P. persimilis). Geo-located data from collections and field surveys including host-plants are also presented for the first time (322 for T. urticae and 65 for P. persimilis). Phytoseiulus persimilis is also reported for the first time from Kenya and La Martinique.

The effect of chrysanthemum leaf trichome density and prey spatial distribution on predation of Tetranychus urticae (Acari: Tetranychidae) by Phytoseiulus persimilis (Acari: Phytoseiidae)

2003 ◽  
Vol 93 (4) ◽  
pp. 343-350 ◽  
Author(s):  
M.C. Stavrinides ◽  
D.J. Skirvin
Keyword(s):  
Tetranychus Urticae ◽  
Phytoseiulus Persimilis ◽  
Spatial Arrangement ◽  
Predation Rate ◽  
Trichome Density ◽  
Release Point ◽  
Predator Prey ◽  
Leaf Hairiness ◽  
Leaf Trichome ◽  
Prey Patches

AbstractThe effect of plant architecture, in terms of leaf hairiness, and prey spatial arrangement, on predation rate of eggs of the spider mite, Tetranychus urticae Koch, by the predatory mite Phytoseiulus persimilis Athias-Henriot was examined on cut stems of chrysanthemums. Three levels of leaf hairiness (trichome density) were obtained using two different chrysanthemum cultivars and two ages within one of the cultivars. The number of prey consumed by P. persimilis was inversely related to trichome density. At low prey densities (less than ten eggs per stem), prey consumption did not differ in a biologically meaningful way between treatments. The effect of prey spatial arrangement on the predation rate of P. persimilis was also examined. Predation rates were higher in prey patches on leaves adjacent to the release point of P. persimilis, but significantly greater numbers of prey were consumed in higher density prey patches compared to low density patches. The predators exhibited non-random searching behaviour, spending more time on leaves closest to the release point. The implications of these findings for biological control and predator–prey dynamics are discussed.

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