Ovarian physiology and age-grading in the rice weevil, Sitophilus oryzae (Coleoptera: Curculionidae)

Perez-Mendoza, Joel; Throne, James E.; Baker, James E.

doi:10.1016/s0022-474x(02)00096-6

Cited by 33 publications

(37 citation statements)

References 22 publications

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“…ConÞdent limits for age determination in our study were similar to those reported by Perez-Mendoza et al (2003) for adult female S. oryzae with the follicular relic methods (Ϯ0.283Ð 0.317 when converted to a relative chronological age scale). ConÞdence limits for the short-lived house ßy were also very similar (Ϯ0.26) with the NIRS methods when converted to a relative chronological age scale (Perez-Mendoza et al 2002).…”

Section: Discussionsupporting

confidence: 87%

“…Successful management of these pests requires thorough sampling protocols and subsequent decision-making, often based on predictive population models or expert system analysis. Because oviposition by these species is not temporally uniform (Simwat and Chahal 1975, Prakash 1980, Perez-Mendoza et al 2003, the accuracy of predictive models used to manage these species can be improved signiÞcantly if age structure of the pest populations is incorporated. However, except for S. oryzae, there is no information on methods to determine the chronological or physiological age of these coleopterans.…”

mentioning

confidence: 99%

“…Age-related changes in the reproductive system in female S. oryzae were used to estimate weevil age (Perez-Mendoza et al 2003). Female weevils have a pair of ovaries, each with two ovarioles of the meroistic/telotrophic type.…”

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confidence: 99%

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Chronological Age-Grading of Three Species of Stored-Product Beetles by Using Near-Infrared Spectroscopy

Perez-Mendoza

Throne

Dowell

et al. 2004

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Section: Discussionsupporting

confidence: 87%

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confidence: 99%

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Chronological Age-Grading of Three Species of Stored-Product Beetles by Using Near-Infrared Spectroscopy

Perez-Mendoza

Throne

Dowell

et al. 2004

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“…The fact that adults of H. hampei do feed from coffee beans do not offer any explanation about fecundity of this insect. However, Perez-Mendoza et al (2004) indicated that there is oosorption in starved Sitophilus oryzae L. (Coleoptera: Curculionidae). This situation may indicate that H. hampei would require feeding from coffee beans to produce viable eggs.…”

Section: Discussionmentioning

confidence: 99%

Alimentary canal and reproductive tract of Hypothenemus hampei (Ferrari) (Coleoptera: Curculionidae, Scolytinae)

G¹,

P²,

E³

et al. 2008

Neotrop. entomol.

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Neotropical Entomology 37(2): 143-151 (2008) Morfología General del Tracto Digestivo y Sistema Reproductivo de Hypothenemus hampei (Ferrari) (Coleoptera: Curculionidae, Scolytinae)RESUMEN -El estudio morfológico del tracto digestivo y el sistema reproductor de machos y hembras de Hypothenemus hampei Ferrari se describe a continuación. El tracto digestivo presenta un arreglo típico descrito para otros insectos. Ahora las diferencias morfológicas se encontraron en el buche del estomodeo, en donde se observaron estructuras espinosas y en el mesenteron se observo un número reducido de ciegos gástricos. Se evidenció por primera vez el comportamiento de la alimentación de las hembras de H. hampei, que requiere aparentemente de la ingesta del endosperma del café para poder producir huevos viables durante la oviposición. La presencia de burbujas de aire al interior del ventrículo anterior se cree que puede ser debido al hambre, más que a la respuesta al medio ambiente durante el vuelo como lo indicaban anteriores observaciones. El sistema reproductor de la hembra presenta dos ovarios y un arreglo estructural común a especímenes de la familia Curculionidae. El sistema reproductor masculino mostró una diferencia signifi cativa con respecto a otros miembros de la familia Curculionidae e incluso a otra especie de la tribu Scolytinae presentando un aedeagus esclerotizado compuesto de varios orifi cios en la porción terminal, por donde el esperma se expulsa durante el apareamiento. PALABRAS-CLAVE: Broca del café, morfología interna, comportamiento de alimentación, reproducciónABSTRACT -The alimentary canal and the reproductive tract of males and females of Hypothenemus hampei Ferrari are described. The alimentary canal of H. hampei showed the crop with several spinelike structures and the midgut with few gastric caeca. We evidenced for the fi rst time that adult females need to feed on coffee in order to produce viable eggs before and during oviposition period. The presence of air bubbles inside the anterior midgut may be due to starvation rather than the response of the environment during fl ying as previously reported. Two ovaries and the same structures and arrangements common to individuals of the Curculionidae beetles composed the female reproductive system. The male reproductive tract showed a signifi cant difference with respect to other Curculionidae and even other Scolytinae species as it showed a sclerotized aedeagus with several pore-like structures in the terminal portion where sperm is released during mating.

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“…In many insect taxa, starvation plays an important role in the induction of oosorption (e.g., Kurihara, 1975;Perez-Mendoza et al, 2004). Many histological and histochemical observations have shown that follicular cells stop producing yolk protein precursors during oosorption and resorb the ooplasm through phagocytic activity (e.g., Wilde, 1964;Maeta & Kurihara, 1971;Kurihara, 1975Kurihara, , 1981.…”

Section: Introductionmentioning

confidence: 99%

The effect of prey availability on ovarian development and oosorption in the ladybird beetle Harmonia axyridis (Coleoptera: Coccinellidae)

Osawa

2005

Eur. J. Entomol.

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Abstract. The ladybird beetle Harmonia axyridis Pallas was investigated under laboratory conditions to clarify the relationship between food abundance or scarcity and ovarian development or oosorption. Four conditions were used: (1) fully fed for 24 h, (2) 24-h starvation, (3) 48-h starvation, and (4) 24-h starvation followed by 24-h re-feeding. Body length and initial body weight were not significantly related to the number of ovarioles per female. Both starvation conditions significantly increased the percentage of oosorptive individuals and ovarioles per female, and significantly decreased the percentage of mature ovarioles per female. Refeeding for 24 h after a 24-h starvation resulted in a significantly higher percentage of mature ovarioles per female; however, the percentage of mature ovarioles remained lower than in the fully fed condition. Oosorption mainly occurred during the intermediate developmental stage of the ovarioles. The rates of ovarian development and oosorption in predatory H. axyridis were much faster compared with those in herbivorous ladybird beetles. Body length, initial body weight, and the number of ovarioles were significantly correlated with the number of eggs laid during the last 24 h of each experimental condition. From an analysis of the weight loss and the number of eggs laid during the last 24 h of each experimental condition, it appears that the realized weight of the eggs may be directly determined by the amount of food digested by the adult. The ovarian development and oosorption were asymmetric in the right and left ovaries. These may be important strategies for oviposition in H. axyridis, because selective provision of maturing ovarioles in the right or left ovary with digested nutrients would favor their development. In addition, the energy loss through oosorption during the intermediate developmental stage of oocytes would be less than the energy loss resulting from the resorption of mature oocytes. Therefore, one role of the ovary in H. axyridis, in addition to egg production, might be as a kind of energy storage system for increasing reproductive success. An immediate start of ovarian development under favorable feeding conditions and rapid oosorption during food scarcities may be an adaptive ovipositional and survival strategy for female adults of H. axyridis in response to heterogeneous and fluctuating resource conditions.

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Ovarian physiology and age-grading in the rice weevil, Sitophilus oryzae (Coleoptera: Curculionidae)

Cited by 33 publications

References 22 publications

Chronological Age-Grading of Three Species of Stored-Product Beetles by Using Near-Infrared Spectroscopy

Chronological Age-Grading of Three Species of Stored-Product Beetles by Using Near-Infrared Spectroscopy

Alimentary canal and reproductive tract of Hypothenemus hampei (Ferrari) (Coleoptera: Curculionidae, Scolytinae)

The effect of prey availability on ovarian development and oosorption in the ladybird beetle Harmonia axyridis (Coleoptera: Coccinellidae)

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