Species complementarity in two myrmecophilous lady beetle species in a coffee agroecosystem: implications for biological control

BioControl ◽  
2018 ◽  
Vol 63 (2) ◽  
pp. 253-264 ◽  
Author(s):  
Aaron Iverson ◽  
Doug Jackson ◽  
Robyn Burnham ◽  
Ivette Perfecto ◽  
Natalia Vandenberg ◽  
...  
Chemoecology ◽  
2021 ◽  
Author(s):  
Roman Bucher ◽  
Laura M. Japke ◽  
Ayse Gül Ünlü ◽  
Florian Menzel

AbstractThe predator-predator naïveté hypothesis suggests that non-native predators benefit from being unknown to native predators, resulting in reduced intraguild interference with native predators. This novelty advantage should depend on the ability of native predators to recognize cues of non-native predators. Here, we compared ant aggression and lady beetle reaction in four native and the invasive lady beetle species Harmonia axyridis. In addition, we tested whether lady beetle cuticular hydrocarbons (CHCs) are involved in species recognition, which might explain naïveté if the invasive species has a specific CHC profile. To this end, we conducted behavioral assays confronting two native ant species with both living lady beetles and lady beetle elytra bearing or lacking CHCs of different lady beetle species. Finally, we characterized CHC profiles of the lady beetles using GC–MS. In general, the aggression of Lasius niger was more frequent than that of Myrmica rubra and L. niger aggression was more frequent towards most native lady beetle species compared to H. axyridis. The removal of CHCs from lady beetle elytra reduced aggression of both ant species. If CHCs of respective lady beetle species were added on cue-free elytra, natural strength of L. niger aggression could be restored. CHC analyses revealed a distinct cue composition for each lady beetle species. Our experiments demonstrate that the presence of chemical cues on the surface of lady beetles contribute to the strength of ant aggression against lady beetles. Reduced aggression of L. niger towards H. axyridis and reduced avoidance behavior in H. axyridis compared to the equally voracious C. septempunctata might improve the invasive lady beetle’s access to ant-tended aphids.


Zootaxa ◽  
2006 ◽  
Vol 1311 (1) ◽  
pp. 13 ◽  
Author(s):  
GUILLERMO GONZÁLEZ ◽  
NATALIA J. VANDENBERG

A complex of lady beetle species including Cycloneda germainii (Crotch) is reviewed and seven valid species recognized, including C. germainii, C. eryngii (Mulsant), C. sicardi (Brèthes), C. boliviana (Mulsant), and three new species, C. lacrimosa González & Vandenberg, n. sp., C. disconsolata Vandenberg & González, n. sp., and C. patagonica González & Vandenberg, n. sp.


2019 ◽  
Vol 8 (35) ◽  
Author(s):  
A. R. Stahlke ◽  
A. Z. Ozsoy ◽  
D. W. Bean ◽  
P. A. Hohenlohe

We announce the complete circularized mitochondrial genome assemblies of Diorhabda carinata and Diorhabda carinulata, beetle species introduced to North America for the biological control of invasive shrubs of the genus Tamarix L. (Tamaricaceae). The assemblies (16,232 and 16,298 bp, respectively) each comprise 13 protein-coding genes, 22 tRNAs, two rRNAs, and a noncoding region.


2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Christy Leppanen ◽  
Andrei Alyokhin ◽  
Serena Gross

Direct competition for aphid prey (Hemiptera: Aphididae) was evaluated between and among several lady beetle species (Coleoptera: Coccinellidae). The behavior of three native (Coccinella trifasciata, Coleomegilla maculata,andHippodamia convergens) and four nonnative (Coccinella septempunctata,Harmonia axyridis,Hippodamia variegata,andPropylea quatuordecimpunctata) lady beetles was observed in laboratory arenas. The beetles were kept alone, paired with conspecifics or paired with heterospecifics, and presented with potato aphids (Macrosiphum euphorbiae).Harmonia axyridiswas the most successful aphid predator in our study, being able to find aphids more quickly and consume more of them compared to most other lady beetle species. It was also by far the most aggressive of the tested species.Coccinella septempunctata, C. trifasciata,andC. maculatagenerally followedH. axyridisin aphid consumption. Prey discovery, consumption, and aggressive behaviors were dependent on which species were present in the arena. Except for the generally superiorH. axyridis, there was no obvious dominance hierarchy among the other tested species and no dichotomy between the native and non-native species. Asymmetric interactions between lady beetle species may affect their abilities to coexist in the same habitat.


2006 ◽  
Vol 41 (6) ◽  
pp. 1059-1061 ◽  
Author(s):  
Carlos Romero Ferreira de Oliveira ◽  
Lêda Rita D'Antonino Faroni ◽  
Raul Narciso Carvalho Guedes ◽  
Angelo Pallini ◽  
José Roberto Gonçalves

The objective of this work was to assess the parasitism potential of Acarophenax lacunatus (Cross & Krantz) on Tribolium castaneum (Herbst). The experimental units encompassed Petri dishes containing 25 g of wheat infested with 20 adults of this beetle species. After seven days of infestation, different mite densities (0, 2, 4, 6, 8 and 10 females) were inoculated into the Petri dishes. The increase in mite density led to a linear increase in parasitism, and a consequent reduction in populations of this insect. It is possible to use this mite species in the biological control of T. castaneum.


2013 ◽  
Vol 96 ◽  
pp. 53-60 ◽  
Author(s):  
Agna R.S. Rodrigues ◽  
Aline F. Spindola ◽  
Jorge B. Torres ◽  
Herbert A.A. Siqueira ◽  
Felipe Colares

1993 ◽  
Vol 83 (3) ◽  
pp. 369-376 ◽  
Author(s):  
M. G. Hill ◽  
D. J. Allan ◽  
R. C. Henderson ◽  
J. G. Charles

AbstractBetween 1987 and 1989, three predatory beetle species (Chilocorus bipustulatus(Linnaeus),C. infernalis(Linnaeus) andC. cacti(Linnaeus)) (Coleoptera: Coccinellidae) and two predatory mite species (Hemisarcoptes coccophagusMeyer andH. cooremaniThomas) were imported and released for the biological control of armoured scale insects (Hemiberlesia rapaxComstock,H. lataniaeSignoret andAspidiotus nerii Bouché) on kiwifruit and shelter trees in New Zealand.Hemisarcoptes coccophagushas established onHemiberlesia lataniaeinfestations on Lombardy poplar (Populus nigravar. Italica) shelter trees at three sites. Detailed studies at one of the release sites over a period spanning nine to 24 months after release, showed that densities ofHemiberlesia lataniaein samples with mites fell to less than 20% of the level in control trees. Assessment of the dispersion characteristics of the mite suggested that the adults are repelled by the presence of other mites on a host.Hemisarcoptes coccophaguscan use two species of New Zealand ladybirds (Scymnus fagusBroun andHalmus chalybeusBoisduval) for phoresy.Hemisarcoptes coccophagusspread naturally to the control trees between 20 and 24 months after release, though the means of dispersal between trees is not known.


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