Tsetse mating behaviour: effects of age and hunger in Glossina morsitans morsitans and G.pallidipes

Wall, Richard

doi:10.1111/j.1365-3032.1988.tb01132.x

Cited by 17 publications

(14 citation statements)

References 33 publications

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“…Laboratory investigators using small rearing cages have noted that lower proportions of young males of Glossina spp. win mating opportunities when in direct competition with older males [29,[48][49][50][51][52]. The mating competition results are in line with work carried out with G. f. fuscipes and G. p. palpalis in field cage observations that showed that young males can win mating opportunities when competing against older males albeit in a lower ratio compared to older males [53].…”

Section: Discussionsupporting

confidence: 88%

Storage of male Glossina palpalis gambiensis pupae at low temperature: effect on emergence, mating and survival

et al. 2014

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Background: Procurement of sterile tsetse flies (Glossina palpalis gambiensis) from Burkina Faso for an eradication programme in Senegal that incorporates the sterile insect technique (SIT) required the development of transport and handling protocols that would allow retaining the female flies in the rearing facility and transport of the male flies as irradiated pupae. The proposed handling scheme included the chilling of the male pupae after the female emergence and transport to Senegal under low temperatures. The effect of exposing male pupae of G. p. gambiensis to low temperature immediately prior to emergence was investigated. Methods: The parameters of interest were emergence rate, insemination potential, survival of adult male, male ability to participate in mating activities and productivity of females mated with these males. Production was assessed in laboratory rearing cages and mating behaviour in field cages. Male flies that emerged after the female emergence flush from pupae stored at 10°C or 12.5°C for 5 or 7 days were used in the investigations with flies that emerged under standard colony conditions as control. Males that were 3, 6 or 9 days old competed for mating opportunities with 3 day old females. Results:The emergence of males after storage of pupae at low temperature (10°C and 12.5°C) for 3, 5, or 7 days was similar to those kept under standard colony conditions while emergence of flies stored at 15°C started before the storage period was over. Survival of males that emerged from pupae stored at low temperature for varying periods was more than 60% at 30 days post emergence (control more than 75%). The fecundity of females inseminated by males that emerged from pupae stored at low temperature for varying periods ranged from 0.33±0.16 to 0.73±0.04 pupae per female per 10 days (control 0.60±0.16). The older males, irrespective of treatment, out-competed the younger males and 3 day-old males transferred lower amounts of seminal contents to the females. Conclusions: Storage of male pupae at low temperature for periods up to 7 days at the end of the male pupal period could not be directly associated with impairment of mating activity.

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Section: Discussionsupporting

confidence: 88%

Storage of male Glossina palpalis gambiensis pupae at low temperature: effect on emergence, mating and survival

et al. 2014

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“…The duration of copulation was found to decrease with increasing age of young females in G.p.pulpa1is (Jordan, 1958) and G.palidipes (Rogers, 1973;Jaenson, 1979b). The duration of copulation also was found to decrease with increasing age of previously unmated G.pallidipes males between 10 and 30 days of age, though no such change was seen for either G.m.morsitans or G.pallidipes males by Wall (1988b).…”

Section: Courtship and Copulationmentioning

confidence: 85%

“…In a study of the effects of age on the responses of G.m. morsitans and G.pallidipes males to decoy females in the laboratory, it was shown that there was a significant increase in activity levels with age, which resulted in older males mating more frequently (Wall, 1988b).…”

Section: Age At Matingmentioning

confidence: 99%

The mating behaviour of tsetse flies (Glossina): a review

Wall

Langley

1993

Physiological Entomology

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Abstract. The mode of reproduction of tsetse flies, by adenotrophic viviparity, is unusual among the Diptera and is associated with many unique aspects of the tsetse's mating system. Tsetse exist at relatively low densities in the environment but a combination of olfactory and visual stimuli brings males and virgin females together on or around host animals. The behavioural repertoire associated with mate location and identification, courtship and copulation is regulated by external physical and chemical stimuli as well as by internal physiological mechanisms. With a view to identifying stimuli that could be used to manipulate tsetse behaviour and exploited for control purposes, much progress has been made in recent years in elucidating the mating behaviour of tsetse and its regulatory mechanisms. This progress and the current state of understanding of tsetse mating behaviour is reviewed.

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“…m. morsitans and G. pallidipes males to decoy females in the laboratory, it was shown that there was a significant increase in activity levels with age, which resulted in older males mating more frequently (Wall, 1988). …”

Section: Discussionmentioning

confidence: 99%

The effect of age on the mating competitiveness of male Glossina fuscipes fuscipes and G. palpalis palpalis

Abila¹,

Kiendrebéogo²,

Mutika³

et al. 2003

Journal of Insect Science

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The effect of age on male Glossina fuscipes fuscipes, Newstead, and Glossina palpalis palpalis, Austin (Diptera: Glossinidae) competiveness were investigated with a view to estimate optimal age for sterile male release. Sterile insect technique involves the mass production, sterilization and sequential release of males of the target species to out compete the wild male population. Mating between released sterile males and wild females produce inviable progeny and the population is reduced over several generations to unsustainable levels. It is vital that the released male are of high quality and are sexually competitive. Age is one parameter affecting the sexual competiveness of the male tsetse fly. The optimal release age was estimated by assessing sexual competitiveness of flies of different age categories, 1, 5, 8 and 13-days after adult eclosion. A walk-in field-cage was used in order to approximate as closely as possible the actual field scenario during sterile insect release programes. It was shown that 8 and 13-day old males mated significantly more frequently, i.e. were more competitive, in the presence of equal numbers of 1 and 5-day old males. The age of male tsetse flies significantly affected competitiveness in both species studied. The ability of G. f. fuscipes to inseminate was not age dependent, and insemination occurred in all females that mated regardless of male age. In G. p. palpalis, however, 1-day old males were least able to inseminate. Mating duration was not significantly affected by age in both species. Eight to thirteen day old males of the test species are here recommended as the optimal sterile male release age.RésuméL'effet de l'âge sur la compétitivité des mâles de Glossina fuscipes fuscipes et de Glossina palpalis palpalis a été étudié en vue de déterminer l'âge optimal pour le lâcher de mâles stériles. La technique de l'insecte stérile (TIS) consiste en une production de masse, en la stérilisation et au lâchage de mâles de l'espèce cible afin qu'ils competissent avec la population de mâles sauvages. L'accouplement entre mâles stériles lâches et femelles sauvages ne produit pas de progéniture, ce qui conduit au bout de plusieurs générations à une réduction de la population à un niveau non sur vivable. Il est primordial que les mâles lâches soient de bonne qualité et sexuellement compétitifs. L'âge est l'un des paramètres affectant la compétitivité des mouches tsetse mâles. Il était donc nécessaire d'estimer l'âge optimal pour lâcher des mâles en comparant la compétitivité de différentes catégories d́âges (1, 5, 8 et 13 jours après leur émergence). La méthode dite du « field-cage » a été utilisée afin d'étudier le comportement des mâles TIS dans les conditions aussi proches que possible de la réalité. Il a été démontré que les mâles de 8 et 13 jours s'accouplent plus fréquemment que les mâles de 1 a 5 jours. Pour les deux espèces étudiées, l'âge affecte significativement la compétitivité des tsetse mâles. La capacité des mâles de G. f. fuscipes à inséminer n'est pas fonction de l'âge ...

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Tsetse mating behaviour: effects of age and hunger in Glossina morsitans morsitans and G.pallidipes

Cited by 17 publications

References 33 publications

Storage of male Glossina palpalis gambiensis pupae at low temperature: effect on emergence, mating and survival

Storage of male Glossina palpalis gambiensis pupae at low temperature: effect on emergence, mating and survival

The mating behaviour of tsetse flies (Glossina): a review

The effect of age on the mating competitiveness of male Glossina fuscipes fuscipes and G. palpalis palpalis

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