The influence of a light and dark cycle on the egg laying activity of Aedes aegypti (Linnaeus, 1762) (Diptera: Culicidae)
BACKGROUND The epidemiological importance of the mosquito Aedes aegypti as a vector of multiple human pathogens has generated a growing number of studies on the physiology and behaviour of its blood-feeding females. The activity of oviposition is one of the critical elements contributing to the expa...
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| Format: | Article |
| Language: | English |
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Fundação Oswaldo Cruz (FIOCRUZ)
2018-02-01
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| Series: | Memorias do Instituto Oswaldo Cruz |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762018000400301&lng=en&tlng=en |
| _version_ | 1797712678134743040 |
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| author | Luana Cristina Farnesi Christine Silveira Barbosa Luciana Ordunha Araripe Rafaela Vieira Bruno |
| author_facet | Luana Cristina Farnesi Christine Silveira Barbosa Luciana Ordunha Araripe Rafaela Vieira Bruno |
| author_sort | Luana Cristina Farnesi |
| collection | DOAJ |
| description | BACKGROUND The epidemiological importance of the mosquito Aedes aegypti as a vector of multiple human pathogens has generated a growing number of studies on the physiology and behaviour of its blood-feeding females. The activity of oviposition is one of the critical elements contributing to the expansion of Ae. aegypti's populations. Although there is a vast literature about oviposition behaviour, significant specific knowledge about egg viability and female fertility under light and dark conditions is still lacking. OBJECTIVES We studied, in controlled laboratory conditions, the effect that light and dark cycles have on the efficiency of oviposition by Ae. aegypti females. METHODS Physiological assays were performed using synchronised eggs obtained from forced egg laying. The number and viability of eggs was analysed under three different light/dark regimes: LD12:12 (12 h of light and 12 h of dark), DD (constant darkness) and LL (constant light). FINDINGS and CONCLUSIONS Our results show that females prefer to lay their eggs in dark conditions, but maximising the number and viability of eggs requires the occurrence of a light/dark cycle. Ongoing research on this theme has the potential of contributing to the proposition of new strategies for control based on the failure of egg laying and hatching. |
| first_indexed | 2024-03-12T07:25:17Z |
| format | Article |
| id | doaj.art-86279c0fb3464a13aaca8dbc174b1ac6 |
| institution | Directory Open Access Journal |
| issn | 1678-8060 |
| language | English |
| last_indexed | 2024-03-12T07:25:17Z |
| publishDate | 2018-02-01 |
| publisher | Fundação Oswaldo Cruz (FIOCRUZ) |
| record_format | Article |
| series | Memorias do Instituto Oswaldo Cruz |
| spelling | doaj.art-86279c0fb3464a13aaca8dbc174b1ac62023-09-02T22:10:42ZengFundação Oswaldo Cruz (FIOCRUZ)Memorias do Instituto Oswaldo Cruz1678-80602018-02-01113410.1590/0074-02760170362S0074-02762018000400301The influence of a light and dark cycle on the egg laying activity of Aedes aegypti (Linnaeus, 1762) (Diptera: Culicidae)Luana Cristina FarnesiChristine Silveira BarbosaLuciana Ordunha AraripeRafaela Vieira BrunoBACKGROUND The epidemiological importance of the mosquito Aedes aegypti as a vector of multiple human pathogens has generated a growing number of studies on the physiology and behaviour of its blood-feeding females. The activity of oviposition is one of the critical elements contributing to the expansion of Ae. aegypti's populations. Although there is a vast literature about oviposition behaviour, significant specific knowledge about egg viability and female fertility under light and dark conditions is still lacking. OBJECTIVES We studied, in controlled laboratory conditions, the effect that light and dark cycles have on the efficiency of oviposition by Ae. aegypti females. METHODS Physiological assays were performed using synchronised eggs obtained from forced egg laying. The number and viability of eggs was analysed under three different light/dark regimes: LD12:12 (12 h of light and 12 h of dark), DD (constant darkness) and LL (constant light). FINDINGS and CONCLUSIONS Our results show that females prefer to lay their eggs in dark conditions, but maximising the number and viability of eggs requires the occurrence of a light/dark cycle. Ongoing research on this theme has the potential of contributing to the proposition of new strategies for control based on the failure of egg laying and hatching.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762018000400301&lng=en&tlng=enoviposition behaviourmosquito eggsegg laying preferencelight/dark cycles |
| spellingShingle | Luana Cristina Farnesi Christine Silveira Barbosa Luciana Ordunha Araripe Rafaela Vieira Bruno The influence of a light and dark cycle on the egg laying activity of Aedes aegypti (Linnaeus, 1762) (Diptera: Culicidae) Memorias do Instituto Oswaldo Cruz oviposition behaviour mosquito eggs egg laying preference light/dark cycles |
| title | The influence of a light and dark cycle on the egg laying activity of Aedes aegypti (Linnaeus, 1762) (Diptera: Culicidae) |
| title_full | The influence of a light and dark cycle on the egg laying activity of Aedes aegypti (Linnaeus, 1762) (Diptera: Culicidae) |
| title_fullStr | The influence of a light and dark cycle on the egg laying activity of Aedes aegypti (Linnaeus, 1762) (Diptera: Culicidae) |
| title_full_unstemmed | The influence of a light and dark cycle on the egg laying activity of Aedes aegypti (Linnaeus, 1762) (Diptera: Culicidae) |
| title_short | The influence of a light and dark cycle on the egg laying activity of Aedes aegypti (Linnaeus, 1762) (Diptera: Culicidae) |
| title_sort | influence of a light and dark cycle on the egg laying activity of aedes aegypti linnaeus 1762 diptera culicidae |
| topic | oviposition behaviour mosquito eggs egg laying preference light/dark cycles |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762018000400301&lng=en&tlng=en |
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