Deutsch
 
Hilfe Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

 
 
DownloadE-Mail
  Local adaptation of the ectoparasite Ixodes uriae to its seabird host

McCoy, K. D., Boulinier, T., Schjørring, S., & Michalakis, Y. (2002). Local adaptation of the ectoparasite Ixodes uriae to its seabird host. Evolutionary Ecology Research, 4(3), 441-456.

Item is

Dateien

einblenden: Dateien
ausblenden: Dateien
:
mccoy_2002.pdf (Verlagsversion), 275KB
 
Datei-Permalink:
-
Name:
mccoy_2002.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:
McCoy, Karen D., Autor
Boulinier, Thierry, Autor
Schjørring, Solveig1, Autor           
Michalakis, Yannis, Autor
Affiliations:
1Department Evolutionary Ecology, Max Planck Institute for Evolutionary Biology, Max Planck Society, ou_1445634              

Inhalt

einblenden:
ausblenden:
Schlagwörter: co-evolution; host-parasite interactions; Ixodes uriae; Rissa tridactyla; tick; virulence
 Zusammenfassung: In addition to reproductive rates and generation times, local parasite adaptation is predicted to be associated with relative host/parasite migration rates, parasite virulence and local resource levels. We tested for local parasite adaptation in a spatially structured natural host-parasite system with fluctuating host resources. Using a cross-fostering design replicated over 2 years, we exchanged chicks of the Black-legged kittiwake (Rissa tridactyla) between subpopulations of its ectoparasite, the tick Ixodes uriae. We found evidence that ticks were adapted to their local hosts; ticks had higher success (capacity to continue to the next life stage) and shorter engorgement times on sympatric birds than on allopatric birds. However, infestation levels were similar between the resident and non-resident chicks in a nest, implying that ticks are unable to distinguish between good and bad hosts and that selection acts during tick engorgement. Hosts appeared to be locally maladapted to their parasites; growth rates tended to be lower for sympatric birds in the presence of parasites. However, we found no effect of host group on the T-cell immune response of chicks. Overall, the results seemed to depend on the environmental quality. When resources were low, local maladaptation was expressed in the host, but adaptation was not shown by the parasite. In the higher quality year, evidence for local parasite adaptation was found, but the host seemed to be able to compensate for the pathogenic effects of ticks. This suggests that virulence (pathogenic effect on host) and the reciprocal effects of the interaction can fluctuate depending on host environmental conditions

Details

einblenden:
ausblenden:
Sprache(n): eng - English
 Datum: 2002-03
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: eDoc: 8235
Anderer: 2126/S 37841
 Art des Abschluß: -

Veranstaltung

einblenden:

Entscheidung

einblenden:

Projektinformation

einblenden:

Quelle 1

einblenden:
ausblenden:
Titel: Evolutionary Ecology Research
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 4 (3) Artikelnummer: - Start- / Endseite: 441 - 456 Identifikator: ISSN: 1522-0613