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Paternity re-visited in a recovering population of Caribbean leatherback turtles (Dermochelys coriacea)

Titelangaben

Figgener, Christine ; Chacón-Chaverri, Didiher ; Jensen, Michael P. ; Feldhaar, Heike:
Paternity re-visited in a recovering population of Caribbean leatherback turtles (Dermochelys coriacea).
In: Journal of Experimental Marine Biology and Ecology. Bd. 475 (2016) . - S. 114-123.
ISSN 0022-0981
DOI: https://doi.org/10.1016/j.jembe.2015.11.014

Abstract

Sea turtles in general are promiscuous breeders, but previous leatherback paternity studies found only a very low level of multiple paternity or none at all. Three highly polymorphic microsatellite markers (Dc99, Cc117, and Ei8) were used to investigate the paternity of a recovering population of leatherback turtles nesting at Playa Gandoca in Costa Rica, which is part of the Atlantic Costa Rican leatherback nesting population. The aim of this study was to (i) detect multiple paternity, (ii) compare the results to previous studies in the same and different nesting populations, (iii) consider the possibility of sperm storage, (iv) explore the possibility of successful inter-nesting mating taking place, and (v) determine the effect of small population size on mating patterns. Tissue samples from females and hatchlings were collected from one to three consecutive clutches (35 clutches total) of 18 nesting females included in the assay with an average sampling effort of 21.91% of offspring per clutch. Evidence of multiple paternity was found in four out of 18 females (22.22%), which had mated with two to three different males. The results from this study indicate that multiple paternity is more common than previously observed for the Atlantic Costa Rican leatherback nesting population. The analyses of successive clutches from the multiply mated females showed that paternal contribution varies between successive clutches and “new” fathers in consecutive clutches suggest the possibility of successful inter-nesting mating.

Weitere Angaben

Publikationsform: Artikel in einer Zeitschrift
Begutachteter Beitrag: Ja
Zusätzliche Informationen: BAYCEER133073
Keywords: Marine turtles; Endangered species; Microsatellites; Costa Rica; Sperm storage; Multiple paternity
Institutionen der Universität: Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Biologie > Lehrstuhl Tierökologie I
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Biologie > Professur Populationsökologie der Tiere > Professur Populationsökologie der Tiere - Univ.-Prof. Dr. Heike Feldhaar
Fakultäten
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Biologie
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Biologie > Professur Populationsökologie der Tiere
Titel an der UBT entstanden: Ja
Themengebiete aus DDC: 500 Naturwissenschaften und Mathematik > 500 Naturwissenschaften
500 Naturwissenschaften und Mathematik > 570 Biowissenschaften; Biologie
500 Naturwissenschaften und Mathematik > 590 Tiere (Zoologie)
Eingestellt am: 10 Dec 2015 09:43
Letzte Änderung: 04 Jul 2022 13:22
URI: https://eref.uni-bayreuth.de/id/eprint/26467