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Phenology of the Microsporidia Nosema ceranae in four mediterranean countries

2022Conference object Open access
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datacite.subject.fosCiências Agrárias::Biotecnologia Agrária e Alimentar
datacite.subject.sdg03:Saúde de Qualidade
dc.contributor.authorJabal-Uriel, Clara
dc.contributor.authorBonjour-Dalmon, A.
dc.contributor.authorChejanovsky, Nor
dc.contributor.authorHiges, Mariano
dc.contributor.authorLe Conte, Yves
dc.contributor.authorLopes, Ana
dc.contributor.authorPinto, Maria Alice
dc.contributor.authorReyes-Carreño, Maritza
dc.contributor.authorSoroker, Victoria
dc.contributor.authorMartín-Hernández, Raquel
dc.date.accessioned2025-07-11T09:48:39Z
dc.date.available2025-07-11T09:48:39Z
dc.date.issued2022
dc.description.abstractThe presence and prevalence of the Microsporidia Nosema ceranae was assessed as part of the BEEHEAL project during a 2-year study period (2018-2019). Monitoring took place in six apiaries located in four Mediterranean continental apiaries: France, Israel, Portugal and Spain, and two insular apiaries located on Ouessant (France) and on São Miguel (Azores archipelago, Portugal). Besides honeybee sample collection every two months, parameters on colony strength, honey production, beekeeping management and climate were recorded. The pathogen was not detected on São Miguel Island during the study. Infection at the apiary level showed that most of the colonies were positive to N. ceranae except in mainland France, where the percentage of infected colonies was the lowest and it fluctuated, with an increase in August in both years. The percentage of infected honeybees per colony varied among apiaries, with Israel having the highest mean levels (32.39%). Colonies in Spain and Portugal showed a similar pattern with the highest levels of infection in April 2018. Ouessant Island had a high percentage of infected honeybees in 2018 and it decreased on 2019. Temperature was not correlated with N. ceranae infection, although high temperatures combined with high relative humidity were associated to high infection levels in Israel. Intra-colony percentage of infection was positively correlated with honeybee population when all apiaries were analysed together. Honey production was not related with N. ceranae infection. Regarding queen replacement, infection levels in spring 2019 in mainland Portugal and Spain decreased in those colonies that had replaced the queen the previous summer (August 2018). Colony mortality varied amo ng apiaries, with mainland France and Spain showing the highest colony losses (47.6% and 39.1%, respectively). However, this parameter was not correlated with the levels of infection. These results allowed to compare the N. ceranae phenology among different countries showing that the infection is dependent on many factors. This information could assist in the development of beekeeping management strategies.por
dc.identifier.citationJabal-Uriel, Clara; Bonjour-Dalmon, Anne; Chejanovsky, Nor; Le Conte, Yves; Lopes, Ana; Pinto, Maria Alice; Reyes-Carreño, Maritza; Soroker, Victoria; Martín-Hernández, Raquel (2022). Phenology of the Microsporidia Nosema ceranae in four mediterranean countries. In EURBEE 2022: 9th European Conference of Apidology. Belgrado
dc.identifier.urihttp://hdl.handle.net/10198/34665
dc.language.isoeng
dc.peerreviewedno
dc.publisherEurBee
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectIntra-colony prevalence
dc.subjectClimate and beekeeping management effect
dc.titlePhenology of the Microsporidia Nosema ceranae in four mediterranean countrieseng
dc.typeconference object
dspace.entity.typePublication
oaire.citation.conferenceDate2022
oaire.citation.conferencePlaceBelgrado
oaire.citation.endPage121
oaire.citation.startPage120
oaire.citation.titleEURBEE 2022: 9th European Conference of Apidology
oaire.versionhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43
person.familyNameLopes
person.familyNamePinto
person.givenNameAna
person.givenNameMaria Alice
person.identifier.ciencia-idF014-6835-054D
person.identifier.ciencia-idF814-A1D0-8318
person.identifier.orcid0000-0002-1888-2262
person.identifier.orcid0000-0001-9663-8399
person.identifier.scopus-author-id8085507800
relation.isAuthorOfPublication5c8dc714-e63c-4ac6-882e-92deafa4bbe8
relation.isAuthorOfPublication0667fe04-7078-483d-9198-56d167b19bc5
relation.isAuthorOfPublication.latestForDiscovery5c8dc714-e63c-4ac6-882e-92deafa4bbe8

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