Výsledky vyhledávání - "Hette-Tronquart N"

Stable isotopes reveal food web modifications along the upstream-downstream gradient of a temperate stream

Autor: Hette Tronquart, N., Belliard, J., Tales, E., Oberdorff, T.

Publikováno v: Aquatic Sciences-Research Across Boundaries
Aquatic Sciences-Research Across Boundaries, Springer Verlag, 2016, 78 (2), pp.255-265. ⟨10.1007/s00027-015-0421-8⟩
Aquatic Sciences-Research Across Boundaries, 2016, 78 (2), pp.255-265. ⟨10.1007/s00027-015-0421-8⟩

[Departement_IRSTEA]Eaux [TR1_IRSTEA]QUASARE; International audience; The upstream-downstream gradient (UDG) is a key feature of streams. For instance food webs are assumed to change from upstream to downstream. We tested this hypothesis in a small E

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::09859b1c69e11123d1341a78d9eb490c
https://hal.archives-ouvertes.fr/hal-01398416/document

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Métriques isotopiques du réseau trophique : une nouvelle génération d'indicateurs pour mesurer l'état écologique des rivières ?

Autor: Hette-Tronquart, N., Belliard, Jérôme

Publikováno v: 9th Symposium for European Freshwater Sciences
9th Symposium for European Freshwater Sciences, Jul 2015, Genève, Switzerland. pp.36

International audience; To date, biological indicators used to assess river health are mainly based on assemblage structure (species composition), and poorly incorporate the functional features of ecosystems. Food webs, as networks of species linked

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::3d2750cdfca38de99ba74c2999035b33
https://hal.inrae.fr/hal-02601720

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Caractérisation des réseaux trophiques en cours d'eau : éléments de contexte, bilan des activités de recherche en 2013 et projet pour l'année 2014

Autor: Hette-Tronquart, N., Belliard, Jérôme

Publikováno v: [Rapport de recherche] irstea. 2014, pp.40

Après un bref rappel des enjeux nationaux et européens qui justifient la conduite de ce projet, le rapport propose quelques éléments de contexte permettant de comprendre les problématiques actuelles liées à l’étude des réseaux trophiques e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______2592::3c3a07eb0244703c324bcf592df252bc
https://hal.inrae.fr/hal-02601147

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Richesse spécifique et diversité trophique : étude du réseau trophique d'une rivière tempérée le long du gradient amont-aval

Autor: Hette-Tronquart, N., Oberdorff, T., Talès, E., Belliard, Jérôme

Publikováno v: BES and SFE joint annual meeting
BES and SFE joint annual meeting, Dec 2014, Lille, France. pp.1, 2014

International audience; It is clear that the numbers of species and individuals are key features of a food web. Still, very few studies investigate how species richness influences trophic diversity. We conducted a natural experiment to examine this q

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::e59d361459b8c0d4773087e190ff3088
https://irsteadoc.irstea.fr/cemoa/PUB00043885

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STUDY OF STREAM FOOD WEBS – CONTEXT, RESEARCH ACTIVITY IN 2013 AND PERSPECTIVES FOR 2014

Autor: Hette-Tronquart, N., Belliard, Jérôme

Publikováno v: [Rapport de recherche] irstea. 2014, pp.40

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od_______212::3c3a07eb0244703c324bcf592df252bc
https://hal.inrae.fr/hal-02601147

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Fish fins as non-lethal surrogates for muscle tissues in freshwater food web studies using stable isotopes

Autor: Hette-Tronquart, N., Mazeas, L., Reuilly-Manenti, L., Zahm, A., Belliard, J.

Publikováno v: Rapid Communications in Mass Spectrometry
Rapid Communications in Mass Spectrometry, Wiley, 2012, 26, p. 1603-p. 1608. ⟨10.1002/rcm.6265⟩

RATIONALE: Dorsal white muscle is the standard tissue analysed in fish trophic studies using stable isotope analyses. However, sampling white muscle often implies the sacrifice of fish. Thus, we examined whether the non-lethal sampling of fin tissue

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::887cc4d8284eb25dc7446c640629f655
https://hal.archives-ouvertes.fr/hal-00862804

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Organisation trophique des peuplements piscicoles des cours d'eau, approche par l'analyse des isotopes stables

Autor: Hette Tronquart, N.

Publikováno v: Sciences de l'environnement. Doctorat du Muséum national d'histoire naturelle, Spécialité : Écologie aquatique, 2012. Français

The study of food webs is necessary to understand ecosystem functioning. However, the potential mechanisms determing foods web (ressource availability, ecosystem stability and size) are still discussed. In this context three new questions concerning

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::3db36adad59b442e144dff2b2a698e9d
https://hal.inrae.fr/tel-02598296

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Occupation des sols et réseaux trophiques: étude des cours d'eau d'un petit bassin-versant tempéré par l'analyse des isotopes stables

Autor: Hette-Tronquart, N., Belliard, Jérôme, Oberdorff, T.

Publikováno v: Rivers as Linked Systems: 2nd Biennial Symposium of the International Society for River Science
Rivers as Linked Systems: 2nd Biennial Symposium of the International Society for River Science, Aug 2011, Berlin, Germany. pp.31

International audience; Ecological management of aquatic ecosystems implies understanding the impacts of human activities on their functioning. Trophic relationships, which constitute a major ecosystem function, could be particularly sensitive to hum

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::de4e44e200409da6e3894019f4b0b31b
https://hal.inrae.fr/hal-02598303

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Influence de la température sur les réseaux trophiques de cours d'eau tempérés : étude par l'analyse des isotopes stables

Autor: Hette-Tronquart, N., Dumont, B., Pont, Didier, Roussel, Jean-Marc, Oberdorff, T., Belliard, Jérôme

Publikováno v: 7th Symposium for European Freshwater Sciences
7th Symposium for European Freshwater Sciences, Jun 2011, Girona, Spain. pp.32

International audience; Trophic interactions are essential to address functional biodiversity. Concerning stream ecosystems, three major non-exclusive hypotheses are put forward to explain variations of food web organisation and complexity; i.e. ecos

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::4f12c7199641f94736788383fe73d240
https://hal.inrae.fr/hal-02598302

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