Paternity and mating system in wolverines Gulo gulo

Sammanfattning

Knowledge of the wolverine Gulo gulo mating system is limited. In this study, we use 20 microsatellite loci for paternity testing in 145 wolverine offspring with known mothers. Samples were collected during > 10 years in two Scandinavian populations, mainly in connection with radio-telemetry studies and as part of long-term population monitoring. In total, 51% of the offspring were assigned a father. Our results demonstrate that the wolverine exhibits a polygamous mating system as some males were shown to produce offspring with more than one female in a single year. Females often reproduced with the same male in subsequent breeding years, but sometimes changed their partner, potentially as a consequence of a change in the territory-holding male in the area. In the majority of litters, siblings were unambiguously assigned the same father, indicating that multiple paternity is rare. Of 23 breeding pairs, for which telemetry data were available, 20 had overlapping home ranges, suggesting that pair formation generally is consistent with the territories held by wolverine males and females

Publicerad i

Wildlife Biology
2007, Volym: 13, sidor: 13-30
Utgivare: WILDLIFE BIOLOGY

SLU författare

• Persson, Jens

  • Institutionen för naturvårdsbiologi, Sveriges lantbruksuniversitet
    

• Segerström, Peter

  • Institutionen för naturvårdsbiologi, Sveriges lantbruksuniversitet
    

UKÄ forskningsämne

Miljö- och naturvårdsvetenskap


Publikationens identifierare

DOI: https://doi.org/10.2981/0909-6396(2007)13[13:PAMSIW]2.0.CO;2

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/16327