Analysis of genetic parentage in the tawny owl (Strix aluco) reveals extra-pair paternity is low

Saladin, Verena; Ritschard, Mathias; Roulin, Alexandre; Bize, Pierre; Richner, Heinz

doi:10.1007/s10336-006-0109-x

Cited by 20 publications

(18 citation statements)

References 25 publications

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“…Several studies have found that breeder density and extra-pair paternity rate are positively correlated among populations of the same species (Møller and Ninni 1998), but they failed to determine if this relationship was causal or due to other covariate factors (Griffith et al 2002). Nonetheless, our results agree with those of other studies on socially monogamous species of raptors that revealed low to null rates of EPFs (Rudnick et al 2005;Saladin et al 2007). Our results suggest that Griffon Vultures are genetically monogamous.…”

Section: Discussionsupporting

confidence: 76%

“…Indeed, high copulation rates are common in raptors (Mougeot et al 2002), and are supposed to be an effective behavior for ensuring male paternity, fidelity and investment in chick rearing for the female (Hunter et al 1993;Birkhead and Møller 1998). Moreover, the high investment of each parent in chick rearing restrains them from seeking EPC (Saladin et al 2007). The low to null EPF rate observed here, which must be confirmed in larger populations, makes it possible to directly estimate the effective population size from a breeding pair census.…”

Section: Discussionmentioning

confidence: 65%

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Low evidence for extra-pair fertilizations in two reintroduced populations of Griffon Vulture (Gyps fulvus)

Gouar

Sulawa

Henriquet³

et al. 2010

J Ornithol

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The Griffon Vulture (Gyps fulvus) is considered to be socially monogamous. However, extra-pair fertilizations are suspected due to observations of extra-pair copulations in some populations. We performed parentage studies based on ten polymorphic microsatellite markers in two reintroduced colonies of Griffon Vulture. Out of 40 genotyped chicks, we found eight chicks whose genotypes mismatched those of their observed parents. Two could be explained by the occurrence of a null allele at one locus. The six remaining mismatches detected relied on mismatches at one locus, and they were not detected when we increased the potential genotyping error rate. We thus conclude that the Griffon Vulture is genetically monogamous, at least in low-density populations.Keywords Extra-pair paternity Á Vulture Á Reintroduction Á Genetic

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Section: Discussionsupporting

confidence: 76%

Section: Discussionmentioning

confidence: 65%

Low evidence for extra-pair fertilizations in two reintroduced populations of Griffon Vulture (Gyps fulvus)

Gouar

Sulawa

Henriquet³

et al. 2010

J Ornithol

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“…Also, almost all owls, including Strix species, have similar mating systems (i.e. monogamous, territorial, males do all resource provisioning in early reproductive stage) and show low rates (Saladin et al 2007) or no evidence (Marks et al 1999, Arsenault et al 2002, Koopman et al 2007) of extrapair paternity. Even high frequencies of extrapair copulations may not actually lead to extrapair fertilization events in owls (Hsu et al 2006).…”

Section: Discussionmentioning

confidence: 99%

Variation in inbreeding rates across the range of Northern Spotted Owls (Strix occidentalis caurina): Insights from over 30 years of monitoring data

Miller

Haig

Forsman

et al. 2018

The Auk

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“…We marked chicks with nontoxic color paint before they were old enough to be banded with an aluminum-numbered band. Extra-pair paternity is rare in the barn owl ), tawny owl (Saladin et al 2007), and swifts (Martins et al 2002). Eggs hatch every 2.5 days in the barn owl, 3.5 days in the tawny owl, and 1 day in the Alpine swift, thereby creating a pronounced age hierarchy among nest-mates.…”

Section: General Methods and Study Organismsmentioning

confidence: 99%

Melanin-based colorations signal strategies to cope with poor and rich environments

Roulin

Gasparini

Bize

et al. 2007

Behav Ecol Sociobiol

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One hypothesis for the maintenance of genetic variation states that alternative genotypes are adapted to different environmental conditions (i.e., genotype-byenvironment interaction G×E) that vary in space and time. Although G×E has been demonstrated for morphological traits, little evidence has been given whether these G×E are associated with traits used as signal in mate choice. In three wild bird species, we investigated whether the degree of melanin-based coloration, a heritable trait, covaries with nestling growth rate in rich and poor environments. Variation in the degree of reddish-brown phaeomelanism is pronounced in the barn owl (Tyto alba) and tawny owl (Strix aluco), and variation in black eumelanism in the barn owl and Alpine swift (Apus melba). Melanin-based coloration has been shown to be a criterion in mate choice in the barn owl. We cross-fostered hatchlings to test whether nestlings sired by parents displaying melanin-based colorations to different extent exhibit alternative growth trajectories when raised by foster parents in poor (experimentally enlarged broods) and rich (experimentally reduced broods) environments. With respect to phaeomelanism, barn owl and tawny owl offspring sired by redder parents grew more rapidly in body mass only in experimentally reduced broods. With respect to eumelanism, Alpine swift offspring of darker fathers grew their wings more rapidly only in experimentally enlarged broods, a difference that was not detected in reduced broods. These interactions between parental melanism and offspring growth rate indicate that individuals display substantial plasticity in response to the rearing environment which is associated with the degree of melanism: at least with respect to nestling growth, phaeomelanic and eumelanic individuals are best adapted to rich and poor environments, respectively. It now remains to be investigated why eumelanism and phaeomelanism have a different signaling function and what the lifelong consequences of these melanism-dependent allocation strategies are. This is important to fully appraise the role played by environmental heterogeneity in maintaining variation in the degree of melanin-based coloration.

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Analysis of genetic parentage in the tawny owl (Strix aluco) reveals extra-pair paternity is low

Cited by 20 publications

References 25 publications

Low evidence for extra-pair fertilizations in two reintroduced populations of Griffon Vulture (Gyps fulvus)

Low evidence for extra-pair fertilizations in two reintroduced populations of Griffon Vulture (Gyps fulvus)

Variation in inbreeding rates across the range of Northern Spotted Owls (Strix occidentalis caurina): Insights from over 30 years of monitoring data

Melanin-based colorations signal strategies to cope with poor and rich environments

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