Deutsch
 
Hilfe Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT
  Salinity tolerance in Daphnia magna: characteristics of genotypes hatching from mixed sediments

Ortells, R., Reusch, T. B. H., & Lampert, W. (2005). Salinity tolerance in Daphnia magna: characteristics of genotypes hatching from mixed sediments. Oecologia, 143, 509-516. doi:10.1007/s00442-005-0027-2.

Item is

Dateien

einblenden: Dateien
ausblenden: Dateien
:
Ortells_2005.pdf (Verlagsversion), 313KB
 
Datei-Permalink:
-
Name:
Ortells_2005.pdf
Beschreibung:
-
OA-Status:
Sichtbarkeit:
Eingeschränkt (Max Planck Institute for Evolutionary Biology, MPLM; )
MIME-Typ / Prüfsumme:
application/pdf
Technische Metadaten:
Copyright Datum:
-
Copyright Info:
-
Lizenz:
-

Externe Referenzen

einblenden:

Urheber

einblenden:
ausblenden:
 Urheber:
Ortells, Raquel1, Autor           
Reusch, Thorsten B. H.1, 2, Autor           
Lampert, Winfried1, Autor           
Affiliations:
1Department Ecophysiology, Max Planck Institute for Limnology, Max Planck Institute for Evolutionary Biology, Max Planck Society, ou_976547              
2Department Evolutionary Ecology, Max Planck Institute for Evolutionary Biology, Max Planck Society, ou_1445634              

Inhalt

einblenden:
ausblenden:
Schlagwörter: cladocerans; microsatellites; resting egg banks; shallow lakes; zooplankton
 Zusammenfassung: The hatching of diapausing eggs is a means of temporal dispersal that can provide populations with genotypes adapted to different environments. In a salinity-variable shallow lake, we predicted that the mixing of different age-classes of eggs in the sediment may yield genotypes with different salinity optima. The alternative would be the absence of local adaptation and the presence of a homogenous population of salt-tolerant genotypes with high phenotypic plasticity. We tested these alternatives by isolating Daphnia magna resting eggs from different sediment depths, exposing them to hatching cues at different salinity levels and measuring the performance of hatched individuals. Results revealed a homogeneous sediment with generally broad-tolerance genotypes and some genotypes with low salt tolerance, which supports the second hypothesis. However, the disturbed character of the sediment hampered historical reconstruction. The absence of local adaptation in the diapausing egg bank may be the result of various scenarios in the response of D. magna populations to severe salinity changes in the lake.

Details

einblenden:
ausblenden:
Sprache(n): eng - English
 Datum: 2005
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: eDoc: 226682
DOI: 10.1007/s00442-005-0027-2
Anderer: 2384/S 38367
 Art des Abschluß: -

Veranstaltung

einblenden:

Entscheidung

einblenden:

Projektinformation

einblenden:

Quelle 1

einblenden:
ausblenden:
Titel: Oecologia
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 143 Artikelnummer: - Start- / Endseite: 509 - 516 Identifikator: ISSN: 0029-8549