Role of visual information and learning in habitat selection by a generalist parasitoid foraging for concealed hosts

Segura, Diego Fernando; Viscarret, Mariana M.; Paladino, Leonela Carabajal; Ovruski, Sérgio M.; Cladera, Jorge Luis

doi:10.1016/j.anbehav.2006.12.005

Cited by 72 publications

(78 citation statements)

References 74 publications

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“…stimuli from the host microhabitat or from the plant (Potting et al 1999, Krugner et al 2008, stimuli indirectly associated with the presence of the host (i.e. host traces left on the substrate) (Colazza et al 1999, Conti et al 2003, Steiner et al 2007, and stimuli arising from the host itself (Godfray 1994, Meyhöfer & Casas 1999, Conti et al 2003, Laumann et al 2007, Segura et al 2007. For egg parasitoids, host location is often mediated by the perception of chemicals, either released as volatile (Colazza et al 1997, Fatouros et al 2005 or left as a trace on the substrate.…”

Section: Introductionmentioning

confidence: 99%

Ultrastructural and functional aspects of the spermatheca in the american harlequin bug, Murgantia histrionica (Hemiptera: Pentatomidae)

Stacconi¹,

Romani²

2011

Neotrop. entomol.

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The spermatheca of Murgantia histrionica (Hahn) was investigated using luorescence, scanning and transmission electron microscopy. The aim of the study was to elucidate the structure of this organ, pointing out differences between mated and unmated females. Results have shown an elaborated cuticular structure associated with muscular and glandular tissues. The spermatheca is joined with the common oviduct by the spermathecal duct, forming a thin saccular dilation through two consecutive invaginations. The distal part of the organ is formed by a series of two communicating cuticular chambers. The irst cylindrical-shaped chamber, corresponding to the coiled region, is wrapped by longitudinal muscular ibers suspended between two cuticular langes. The contractions of these ibers compress a deformable zone of the cylinder, pumping the sperm toward the spermathecal duct. Without contractions the cylinder results to be isolated from the proximal part of the spermatheca by means of a valve. The second chamber, corresponding to the spermatheca, is made of two parts: a truncated-conical sub chamber, with a constant cuticular thickness, bearing on itself the distal lange, where muscular ibers are attached. The second part is a bulb-like structure wrapped in a glandular epithelium. The secretory units are composed by two cells: a secretory cell and an associated duct cell. Every evacuating duct shows a little reservoir just after the terminal apparatus, and converge inside the distal bulb after a tortuous path. The functional implications of this structure in the reproductive biology of M. histrionica are discussed.

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Section: Introductionmentioning

confidence: 99%

Ultrastructural and functional aspects of the spermatheca in the american harlequin bug, Murgantia histrionica (Hemiptera: Pentatomidae)

Stacconi¹,

Romani²

2011

Neotrop. entomol.

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“…Entre estes estímulos, a cor destaca-se tanto como pista direta, quanto através de aprendizagem associativa em relação à localização do habitat e do hospedeiro (seGura et al, 2007). No contexto de pistas relacionadas ao forrageamento de parasitoides, a cor é um fator que tem sido estudado, entretanto, foram realizados estudos com parasitoides da família Scelionidae (aQuino, 2011), existindo menor volume de informação no caso de Trichogrammatideos.…”

Section: Introductionunclassified

Parasitismo de Trichogramma pretiosum Riley, 1879 (Hymenoptera: Trichogrammatidae) em diferentes hospedeiros e cores de cartelas

et al. 2012

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Espécies do gênero Trichogramma são dos inimigos naturais os mais estudados e utilizados atualmente no mundo. A qualidade e o desempenho desses agentes de controle produzidos massalmente podem ser influenciados por alguns fatores, tais como a escolha do hospedeiro adequado para multiplicação do parasitoide e a utilização de diferentes cores de cartelas, haja vista que estes parasitoides podem utilizar estímulos físicos como cor para facilitar a localização do hospedeiro. O objetivo desse trabalho foi avaliar à influência de cores de cartelas no parasitismo de Trichogramma pretiosum que foi submetido a ovos do hospedeiro alternativo Anagasta kuehniella e duas populações de Plutella xylostella, sendo uma delas criada no substrato brócolis e a outra em couve. Ovos dos hospedeiros foram aderidos às cartelas de papel cartão, sendo que as cores selecionadas foram: azul, amarela, verde, rosa, vermelha e preta. Para cada tratamento foram observadas 20 repetições, cada uma composta por 30 ovos dos hospedeiros. Posteriormente, as cartelas foram expostas às fêmeas do parasitoide individualizadas em tubos tipo Eppendorf® de 2,0 mL que continha uma gotícula de mel para alimentação delas por 24 horas, em teste de confinamento. Foram avaliados o número de ovos parasitados e a porcentagem de emergência. A linhagem Tp-8 de T. pretiosum apresentou maior parasitismo em ovos de A. kuehniella. Os substratos de alimentação de P. xylostella (couve e brócolis) não influenciam o parasitismo de T. pretiosum. As cores de cartelas indicadas para a condução da criação massal de T. pretiosum são azul, verde e branco.

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“…Despite what it was described in the literature (Leyva et al 1991;Cornelius et al 1999;Paranhos et al 2007;Segura et al 2007), yellow sticky traps showed limited efficacy. However, the developed system of sentinel fruits recovered data not only from movement, but also from parasitic capacity of released females, a key point not always considered in other works.…”

Section: Integration Of D Longicaudata Within the Ipm Program In Spainmentioning

confidence: 85%

“…Indeed, recapture studies hadve provided opposed results, not revealing any clear methodology that allow the determination of dispersion and parasitism percentage (as measure of egg-laying location) at the same time or with the same efficacy. Indeed, Cornelius et al (1999) indicate that D. longicaudata showed a preference for yellow traps, while Segura et al (2007) determined that this parasitoid species do not show any visual preference for chromatic traps.…”

Section: Natural Enemy Release Methods Within Biological Control Progmentioning

confidence: 99%

“…In addition, according to Paranhos et al (2007), D. longicaudata prefers parasitizing in the ground and not in a high height of the ground. Studies on D. longicaudata (Cornelius et al 1999) showed an innate preference for yellow targets, while Leyva et al (1991) and Segura et al (2007) could not determine any hue preference for females of this species. Although providing general, positive, visual stimulus for insects (Messing and Jang 1992) yellow sticky traps might not be very attractive for adult D. longicaudata (Paranhos et al 2007).…”

Section: Trapsmentioning

confidence: 99%

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Diachasmimorpha longicaudata as Biological Control agent of the Mediterranean fruit fly, Ceratitis capitata: biotic and abiotic factors affecting its implementation in citrus crops of the Mediterranean basin

Harbi¹

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DeclarationThis thesis dissertation is submitted by the undersigned, after endorsement by the supervisors and Doctoral school tutor, for the degree of Doctor of Philosophy at the University Jaume I of Castellon (Spain) and at the High Agronomic Institute of Chott-Mariem (ISA-CM) (Tunisia).This work has not previously been submitted as an exercise for a degree at these two, or at any other University. Except where otherwise stated, the work described herein has been carried out by the author alone. The experimental work had been conducted at the IVIA research station and/or at the ISA-CM research station as indicated in the International Joint Tutelage contract.To fulfil with this contract, the present thesis dissertation has been fully written in English, with an extended abstract in the official languages of the University Jaume I and from the High Agronomic Institute of Chott-Mariem.According to Spanish legislation, this thesis has been deposited at the TESEO (Spanish Ministry of Education Thesis database) and may be borrwoed or copied upon request with the permission of the Librarian, University Jaume I. . .............................................................................................................. ............................................................................... ? ................................................................................................ 162 Ceratitis capitata control program in Tunisia ............................................. The

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Role of visual information and learning in habitat selection by a generalist parasitoid foraging for concealed hosts

Cited by 72 publications

References 74 publications

Ultrastructural and functional aspects of the spermatheca in the american harlequin bug, Murgantia histrionica (Hemiptera: Pentatomidae)

Ultrastructural and functional aspects of the spermatheca in the american harlequin bug, Murgantia histrionica (Hemiptera: Pentatomidae)

Parasitismo de Trichogramma pretiosum Riley, 1879 (Hymenoptera: Trichogrammatidae) em diferentes hospedeiros e cores de cartelas

Diachasmimorpha longicaudata as Biological Control agent of the Mediterranean fruit fly, Ceratitis capitata: biotic and abiotic factors affecting its implementation in citrus crops of the Mediterranean basin

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