DNA fingerprinting reveals a low incidence of extra-pair fertilizations in the lesser kestrel
Article Abstract:
DNA fingerprinting of socially monogamous, colonially breeding lesser kestrels (Falco naumanni) shows that extra-pair copulation (EPC) and extra-pair fertilization (EPF) are rare. Out of 26 nests studied, only 3 offsprings resulted from extra-pair fertilization. The need for continued support from their partners to carry out parental functions influences female reluctance to EPC. A higher pair copulation rate enables females to know their mate's condition and lowers the chances of EPC with other potential mates. Falco naumanni exhibit the lowest EPF levels among the socially monogamous species.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1996
User Contributions:
Comment about this article or add new information about this topic:
Copulatory behaviour and paternity in the American kestrel: the adaptive significance of frequent copulations
Article Abstract:
The copulatory behavior of 16 pairs of American kestrels, Falco sparverius, and the reproductive success of 21 kestrel families were studied to determine the adaptive significance of frequent withinpair copulations. The findings provided evidence that sperm competition is minimal and that copulatory behavior is dependent on neither food transfers nor female mate guarding of males. Fertilization and mate assessment were proposed to account for the frequency of copulations.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1998
User Contributions:
Comment about this article or add new information about this topic:
Copulatory behaviour and paternity determined by DNA fingerprinting in kestrels: effects of cyclic food abundance
Article Abstract:
The availability of food influences extra-pair copulation and extra-pair paternity (EPP) in Eurasian kestrels, Falco tinnunculus. Pair copulation frequency is higher in the year of increasing food availability than in the year of decreasing food. Males spent more time in mate guarding in increasing and decreasing food years. DNA fingerprinting reveals EPP in 7% of 27 broods and 5% of 112 offsprings during the years of low food availability.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1996
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Short-range control of cell differentiation in the Arabidopsis root meristem. Cell fate in the Arabidopsis root meristem determined by directional signalling
- Abstracts: Do female pigeons trade pair copulations for protection? Sex roles and sexual selection. Depletion determines sperm number in male zebra finches
- Abstracts: Making continental crust. Preservation of ancient and fertile lithospheric mantle between the southwestern United States
- Abstracts: Australia maintains commitment to joint research centres. Australia eyes role in Gemini telescopes. Votes nudge Australia closer to joining telescope project
- Abstracts: Wild turkey population dynamics in southwestern Wisconsin. Reproductive ecology of eastern wild turkeys in southwestern Wisconsin