Aquatic microfauna alter larval food resources and affect development and biomass of West Nile and Saint Louis encephalitis vector Culex nigripalpus (Diptera: Culicidae).
Identifieur interne : 000146 ( Main/Exploration ); précédent : 000145; suivant : 000147Aquatic microfauna alter larval food resources and affect development and biomass of West Nile and Saint Louis encephalitis vector Culex nigripalpus (Diptera: Culicidae).
Auteurs : Dagne Duguma ; Michael G. Kaufman ; Arthur B. Simas DomingosSource :
- Ecology and evolution [ 2045-7758 ] ; 2017.
Abstract
Ciliate protists and rotifers are ubiquitous in aquatic habitats and can comprise a significant portion of the microbial food resources available to larval mosquitoes, often showing substantial declines in abundance in the presence of mosquito larvae. This top-down regulation of protists is reported to be strong for mosquitoes inhabiting small aquatic containers such as pitcher plants or tree holes, but the nature of these interactions with larval mosquitoes developing in other aquatic habitats is poorly understood. We examined the effects of these two microbial groups on lower trophic level microbial food resources, such as bacteria, small flagellates, and organic particles, in the water column, and on Culex larval development and adult production. In three independent laboratory experiments using two microeukaryote species (one ciliate protist and one rotifer) acquired from field larval mosquito habitats and cultured in the laboratory, we determined the effects of Culex nigripalpus larval grazing on water column microbial dynamics, while simultaneously monitoring larval growth and development. The results revealed previously unknown interactions that were different from the top-down regulation of microbial groups by mosquito larvae in other systems. Both ciliates and rotifers, singly or in combination, altered other microbial populations and inhibited mosquito growth. It is likely that these microeukaryotes, instead of serving as food resources, competed with early instar mosquito larvae for microbes such as small flagellates and bacteria in a density-dependent manner. These findings help our understanding of the basic larval biology of Culex mosquitoes, variation in mosquito production among various larval habitats, and may have implications for existing vector control strategies and for developing novel microbial-based control methods.
DOI: 10.1002/ece3.2947
PubMed: 28515886
PubMed Central: PMC5433994
Affiliations:
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Kaufman</name><affiliation><nlm:affiliation>Department of Entomology Michigan State University East Lansing MI USA.</nlm:affiliation><wicri:noCountry code="no comma">Department of Entomology Michigan State University East Lansing MI USA.</wicri:noCountry></affiliation></author><author><name sortKey="Simas Domingos, Arthur B" sort="Simas Domingos, Arthur B" uniqKey="Simas Domingos A" first="Arthur B" last="Simas Domingos">Arthur B. Simas Domingos</name><affiliation><nlm:affiliation>Florida Medical Entomology Laboratory University of Florida/IFAS Vero Beach FL USA.</nlm:affiliation><wicri:noCountry code="no comma">Florida Medical Entomology Laboratory University of Florida/IFAS Vero Beach FL USA.</wicri:noCountry></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2017">2017</date><idno type="RBID">pubmed:28515886</idno><idno type="pmid">28515886</idno><idno type="doi">10.1002/ece3.2947</idno><idno type="pmc">PMC5433994</idno><idno type="wicri:Area/Main/Corpus">000139</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">000139</idno><idno type="wicri:Area/Main/Curation">000139</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Curation">000139</idno><idno type="wicri:Area/Main/Exploration">000139</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Aquatic microfauna alter larval food resources and affect development and biomass of West Nile and Saint Louis encephalitis vector <i>Culex nigripalpus</i> (Diptera: Culicidae).</title><author><name sortKey="Duguma, Dagne" sort="Duguma, Dagne" uniqKey="Duguma D" first="Dagne" last="Duguma">Dagne Duguma</name><affiliation><nlm:affiliation>Florida Medical Entomology Laboratory University of Florida/IFAS Vero Beach FL USA.</nlm:affiliation><wicri:noCountry code="no comma">Florida Medical Entomology Laboratory University of Florida/IFAS Vero Beach FL USA.</wicri:noCountry></affiliation></author><author><name sortKey="Kaufman, Michael G" sort="Kaufman, Michael G" uniqKey="Kaufman M" first="Michael G" last="Kaufman">Michael G. Kaufman</name><affiliation><nlm:affiliation>Department of Entomology Michigan State University East Lansing MI USA.</nlm:affiliation><wicri:noCountry code="no comma">Department of Entomology Michigan State University East Lansing MI USA.</wicri:noCountry></affiliation></author><author><name sortKey="Simas Domingos, Arthur B" sort="Simas Domingos, Arthur B" uniqKey="Simas Domingos A" first="Arthur B" last="Simas Domingos">Arthur B. Simas Domingos</name><affiliation><nlm:affiliation>Florida Medical Entomology Laboratory University of Florida/IFAS Vero Beach FL USA.</nlm:affiliation><wicri:noCountry code="no comma">Florida Medical Entomology Laboratory University of Florida/IFAS Vero Beach FL USA.</wicri:noCountry></affiliation></author></analytic><series><title level="j">Ecology and evolution</title><idno type="ISSN">2045-7758</idno><imprint><date when="2017" type="published">2017</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Ciliate protists and rotifers are ubiquitous in aquatic habitats and can comprise a significant portion of the microbial food resources available to larval mosquitoes, often showing substantial declines in abundance in the presence of mosquito larvae. This top-down regulation of protists is reported to be strong for mosquitoes inhabiting small aquatic containers such as pitcher plants or tree holes, but the nature of these interactions with larval mosquitoes developing in other aquatic habitats is poorly understood. We examined the effects of these two microbial groups on lower trophic level microbial food resources, such as bacteria, small flagellates, and organic particles, in the water column, and on <i>Culex</i> larval development and adult production. In three independent laboratory experiments using two microeukaryote species (one ciliate protist and one rotifer) acquired from field larval mosquito habitats and cultured in the laboratory, we determined the effects of <i>Culex nigripalpus</i> larval grazing on water column microbial dynamics, while simultaneously monitoring larval growth and development. The results revealed previously unknown interactions that were different from the top-down regulation of microbial groups by mosquito larvae in other systems. Both ciliates and rotifers, singly or in combination, altered other microbial populations and inhibited mosquito growth. It is likely that these microeukaryotes, instead of serving as food resources, competed with early instar mosquito larvae for microbes such as small flagellates and bacteria in a density-dependent manner. These findings help our understanding of the basic larval biology of <i>Culex</i> mosquitoes, variation in mosquito production among various larval habitats, and may have implications for existing vector control strategies and for developing novel microbial-based control methods.</div></front></TEI><pubmed><MedlineCitation Status="PubMed-not-MEDLINE" Owner="NLM"><PMID Version="1">28515886</PMID><DateRevised><Year>2020</Year><Month>09</Month><Day>28</Day></DateRevised><Article PubModel="Electronic-eCollection"><Journal><ISSN IssnType="Print">2045-7758</ISSN><JournalIssue CitedMedium="Print"><Volume>7</Volume><Issue>10</Issue><PubDate><Year>2017</Year><Month>05</Month></PubDate></JournalIssue><Title>Ecology and evolution</Title><ISOAbbreviation>Ecol Evol</ISOAbbreviation></Journal><ArticleTitle>Aquatic microfauna alter larval food resources and affect development and biomass of West Nile and Saint Louis encephalitis vector <i>Culex nigripalpus</i> (Diptera: Culicidae).</ArticleTitle><Pagination><MedlinePgn>3507-3519</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1002/ece3.2947</ELocationID><Abstract><AbstractText>Ciliate protists and rotifers are ubiquitous in aquatic habitats and can comprise a significant portion of the microbial food resources available to larval mosquitoes, often showing substantial declines in abundance in the presence of mosquito larvae. This top-down regulation of protists is reported to be strong for mosquitoes inhabiting small aquatic containers such as pitcher plants or tree holes, but the nature of these interactions with larval mosquitoes developing in other aquatic habitats is poorly understood. We examined the effects of these two microbial groups on lower trophic level microbial food resources, such as bacteria, small flagellates, and organic particles, in the water column, and on <i>Culex</i> larval development and adult production. In three independent laboratory experiments using two microeukaryote species (one ciliate protist and one rotifer) acquired from field larval mosquito habitats and cultured in the laboratory, we determined the effects of <i>Culex nigripalpus</i> larval grazing on water column microbial dynamics, while simultaneously monitoring larval growth and development. The results revealed previously unknown interactions that were different from the top-down regulation of microbial groups by mosquito larvae in other systems. Both ciliates and rotifers, singly or in combination, altered other microbial populations and inhibited mosquito growth. It is likely that these microeukaryotes, instead of serving as food resources, competed with early instar mosquito larvae for microbes such as small flagellates and bacteria in a density-dependent manner. These findings help our understanding of the basic larval biology of <i>Culex</i> mosquitoes, variation in mosquito production among various larval habitats, and may have implications for existing vector control strategies and for developing novel microbial-based control methods.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Duguma</LastName><ForeName>Dagne</ForeName><Initials>D</Initials><Identifier Source="ORCID">0000-0003-1941-7095</Identifier><AffiliationInfo><Affiliation>Florida Medical Entomology Laboratory University of Florida/IFAS Vero Beach FL USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Kaufman</LastName><ForeName>Michael G</ForeName><Initials>MG</Initials><AffiliationInfo><Affiliation>Department of Entomology Michigan State University East Lansing MI USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Simas Domingos</LastName><ForeName>Arthur 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Kaufman</name><name sortKey="Simas Domingos, Arthur B" sort="Simas Domingos, Arthur B" uniqKey="Simas Domingos A" first="Arthur B" last="Simas Domingos">Arthur B. Simas Domingos</name></noCountry></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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