Development of ovaries, allometry of reproductive traits and fecundity of Episyrphus balteatus (Diptera: Syrphidae)
Episyrphus balteatus only matures eggs after emergence. Ovaries develop in 4 stages. In the absence of oviposition sites, females refrain from ovipositing and their ovaries progressively fill the abdomen and then egg resorption occurs. The potential fecundity, which is expressed by the ovariole numb...
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| Format: | Article |
| Language: | English |
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Institute of Entomology, Biology Centre, Czech Academy of Science
2000-10-01
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| Series: | European Journal of Entomology |
| Subjects: | |
| Online Access: | https://www.eje.cz/artkey/eje-200002-0006_Development_of_ovaries_allometry_of_reproductive_traits_and_fecundity_of_Episyrphus_balteatus_Diptera_Syrphi.php |
| _version_ | 1819282683214168064 |
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| author | Etienne BRANQUART Jean-Louis HEMPTINNE |
| author_facet | Etienne BRANQUART Jean-Louis HEMPTINNE |
| author_sort | Etienne BRANQUART |
| collection | DOAJ |
| description | Episyrphus balteatus only matures eggs after emergence. Ovaries develop in 4 stages. In the absence of oviposition sites, females refrain from ovipositing and their ovaries progressively fill the abdomen and then egg resorption occurs. The potential fecundity, which is expressed by the ovariole number, the reproductive biomass and the abdomen volume, scales isometrically with the size of females. Egg size is much less variable and does not rise proportionally to body size. In laboratory conditions, females of E. balteatus might lay between 2,000 and 4,500 eggs during their life-time at a rate of 1 to 2 eggs per ovariole per day. Both life-time fecundity and rate of egg production are directly related to the size of females. The potential and realized fecundities are likely to be limited by the availability of food resources during larval and adult life, respectively. |
| first_indexed | 2024-12-24T01:19:29Z |
| format | Article |
| id | doaj.art-5df8e991a27d4a6e89468f396f5485d0 |
| institution | Directory Open Access Journal |
| issn | 1210-5759 1802-8829 |
| language | English |
| last_indexed | 2024-12-24T01:19:29Z |
| publishDate | 2000-10-01 |
| publisher | Institute of Entomology, Biology Centre, Czech Academy of Science |
| record_format | Article |
| series | European Journal of Entomology |
| spelling | doaj.art-5df8e991a27d4a6e89468f396f5485d02022-12-21T17:22:41ZengInstitute of Entomology, Biology Centre, Czech Academy of ScienceEuropean Journal of Entomology1210-57591802-88292000-10-0197216517010.14411/eje.2000.031eje-200002-0006Development of ovaries, allometry of reproductive traits and fecundity of Episyrphus balteatus (Diptera: Syrphidae)Etienne BRANQUART0Jean-Louis HEMPTINNE1Faculté universitaire des Sciences agronomiques, Passage des Déportés 2, B-5030 Gembloux, BelgiumEcole nationale de Formation agronomique, B.P. 87, F-31326 Castanet-Tolosan, France; e-mail: jean-louis.hemptinne@educagri.frEpisyrphus balteatus only matures eggs after emergence. Ovaries develop in 4 stages. In the absence of oviposition sites, females refrain from ovipositing and their ovaries progressively fill the abdomen and then egg resorption occurs. The potential fecundity, which is expressed by the ovariole number, the reproductive biomass and the abdomen volume, scales isometrically with the size of females. Egg size is much less variable and does not rise proportionally to body size. In laboratory conditions, females of E. balteatus might lay between 2,000 and 4,500 eggs during their life-time at a rate of 1 to 2 eggs per ovariole per day. Both life-time fecundity and rate of egg production are directly related to the size of females. The potential and realized fecundities are likely to be limited by the availability of food resources during larval and adult life, respectively.https://www.eje.cz/artkey/eje-200002-0006_Development_of_ovaries_allometry_of_reproductive_traits_and_fecundity_of_Episyrphus_balteatus_Diptera_Syrphi.phpsyrphidaeepisyrphus balteatusfecundityegg productionovariesallometry |
| spellingShingle | Etienne BRANQUART Jean-Louis HEMPTINNE Development of ovaries, allometry of reproductive traits and fecundity of Episyrphus balteatus (Diptera: Syrphidae) European Journal of Entomology syrphidae episyrphus balteatus fecundity egg production ovaries allometry |
| title | Development of ovaries, allometry of reproductive traits and fecundity of Episyrphus balteatus (Diptera: Syrphidae) |
| title_full | Development of ovaries, allometry of reproductive traits and fecundity of Episyrphus balteatus (Diptera: Syrphidae) |
| title_fullStr | Development of ovaries, allometry of reproductive traits and fecundity of Episyrphus balteatus (Diptera: Syrphidae) |
| title_full_unstemmed | Development of ovaries, allometry of reproductive traits and fecundity of Episyrphus balteatus (Diptera: Syrphidae) |
| title_short | Development of ovaries, allometry of reproductive traits and fecundity of Episyrphus balteatus (Diptera: Syrphidae) |
| title_sort | development of ovaries allometry of reproductive traits and fecundity of episyrphus balteatus diptera syrphidae |
| topic | syrphidae episyrphus balteatus fecundity egg production ovaries allometry |
| url | https://www.eje.cz/artkey/eje-200002-0006_Development_of_ovaries_allometry_of_reproductive_traits_and_fecundity_of_Episyrphus_balteatus_Diptera_Syrphi.php |
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