Absence of strict monogamy in the Eurasian jackdaw, Coloeus monedula

2021 ◽  
pp. 1-5
Author(s):  
Sondra Turjeman ◽  
Ron Chen ◽  
Ran Nathan
Keyword(s):  
Dna Fingerprinting ◽  
Mating Strategy ◽  
Avian Species ◽  
Species Range ◽  
Geographical Range ◽  
Mixed Mating ◽  
Social Monogamy ◽  
Extra Pair Paternity ◽  
Genetic Monogamy ◽  
Mixed Mating Strategy

Abstract The Eurasian Jackdaw is thought to be archetypically monogamous, but recent tagging research uncovered extra-pair copulations in the species. Here we examined extra-pair paternity (genetic monogamy) in Eurasian jackdaws breeding in the Judean Hills, Israel, at the global edge of the species range, using a set of highly polymorphic molecular microsatellites. We found roughly a sixth of nests sampled showed deviations from monogamy, more than previously found in DNA fingerprinting studies of jackdaws, suggesting a mixed mating strategy in this population. These findings support the trend of extra-pair paternity in avian species, even when social monogamy remains the rule, and highlight the importance of continued study of species throughout their geographical range.

scholarly journals A mixed-mating strategy in a hermaphroditic vertebrate

2006 ◽  
Vol 273 (1600) ◽  
pp. 2449-2452 ◽  
Author(s):  
Mark Mackiewicz ◽  
Andrey Tatarenkov ◽  
Bruce J Turner ◽  
John C Avise
Keyword(s):  
Mating Strategy ◽  
Mixed Mating ◽  
Mixed Mating Strategy

Mixed mating in Banksia media

2002 ◽  
Vol 50 (5) ◽  
pp. 627 ◽  
Author(s):  
S. J. Wooller ◽  
R. D. Wooller
Keyword(s):  
Seed Production ◽  
Inbreeding Depression ◽  
Western Australia ◽  
Fruit Set ◽  
Mating Strategy ◽  
South Coast ◽  
Mixed Mating ◽  
The South ◽  
Self Pollination ◽  
Mixed Mating Strategy

Differential exclusion of vertebrates and invertebrates from the inflorescences of Banksia media R.Br. on the south coast of Western Australia showed the species to be partially self-compatible. Access by invertebrates increased fruit set and additional access by vertebrates resulted in even greater fruit set. Honeyeater birds and marsupial nectarivores were abundant and widespread in the study area and most carried the pollen of Banksia media while it flowered. However, although B. media had the floral characteristics attributed to vertebrate pollination, self-pollination and pollination by insects clearly also play major roles in seed production. Banksia media regenerates solely from seed released after fire and we suggest that its mixed mating strategy is a compromise between inbreeding depression and risk of elimination from areas prone to occasional fires.

scholarly journals Patterns of chasmogamy and cleistogamy, a mixed-mating strategy in an endangered perennial

AoB Plants ◽  
2017 ◽  
Vol 9 (6) ◽  
Author(s):  
Stephanie M Koontz ◽  
Carl W Weekley ◽  
Sarah J Haller Crate ◽  
Eric S Menges
Keyword(s):  
Mating Strategy ◽  
Mixed Mating ◽  
Mixed Mating Strategy

scholarly journals Almost faithful: SNP markers reveal low levels of extra-pair paternity in the Eurasian beavers

2019 ◽  
Author(s):  
Priyank Sharad Nimje ◽  
Helga Veronica Tinnesand ◽  
Christina Buesching ◽  
Mona Sæbø ◽  
Helen Senn ◽  
...  
Keyword(s):  
Multiple Paternity ◽  
Low Frequency ◽  
Mate Guarding ◽  
Snp Markers ◽  
Social Monogamy ◽  
Single Nucleotide ◽  
Extra Pair Paternity ◽  
Eurasian Beaver ◽  
Genetic Monogamy ◽  
Mate Change

Mating systems largely affect individual reproductive strategies which further drives evolution. Monogamy, where males and females form exclusive pairs for more than one breeding season, is particularly intriguing in this context, as there are real and potential costs of genetic monogamy to both sexes. However, molecular studies in a variety of species have revealed that social monogamy does not necessarily imply genetic monogamy due to occurrence of extra-pair copulations resulting in extra-pair offspring. Although common in birds, <10% of mammals are monogamous. Here we use single nucleotide polymorphism (SNP) to investigate the genetic mating system of the Eurasian beaver (Castor fiber), a species traditionally considered to be not only socially but also genetically monogamous. We found evidence for low frequency of extra-pair paternity (EPP) and multiple paternity within litter. Only 5.4% young were produced by EPP and only 7% of litter contain at least one extra-pair young. Moreover, we found indications that only pairings of old individuals engaged in EPP. None of these pairs produced more than one litter as a result of EPP and none of the EPP events resulted in mate change. Our findings suggest that EPP in beavers might be the consequence of a lapse in mate guarding ability of old males.

scholarly journals Almost faithful: SNP markers reveal low levels of extra-pair paternity in the Eurasian beavers

2019 ◽  
Author(s):  
Priyank Sharad Nimje ◽  
Helga Veronica Tinnesand ◽  
Christina Buesching ◽  
Mona Sæbø ◽  
Helen Senn ◽  
...  
Keyword(s):  
Multiple Paternity ◽  
Low Frequency ◽  
Mate Guarding ◽  
Snp Markers ◽  
Social Monogamy ◽  
Single Nucleotide ◽  
Extra Pair Paternity ◽  
Eurasian Beaver ◽  
Genetic Monogamy ◽  
Mate Change

Mating systems largely affect individual reproductive strategies which further drives evolution. Monogamy, where males and females form exclusive pairs for more than one breeding season, is particularly intriguing in this context, as there are real and potential costs of genetic monogamy to both sexes. However, molecular studies in a variety of species have revealed that social monogamy does not necessarily imply genetic monogamy due to occurrence of extra-pair copulations resulting in extra-pair offspring. Although common in birds, <10% of mammals are monogamous. Here we use single nucleotide polymorphism (SNP) to investigate the genetic mating system of the Eurasian beaver (Castor fiber), a species traditionally considered to be not only socially but also genetically monogamous. We found evidence for low frequency of extra-pair paternity (EPP) and multiple paternity within litter. Only 5.4% young were produced by EPP and only 7% of litter contain at least one extra-pair young. Moreover, we found indications that only pairings of old individuals engaged in EPP. None of these pairs produced more than one litter as a result of EPP and none of the EPP events resulted in mate change. Our findings suggest that EPP in beavers might be the consequence of a lapse in mate guarding ability of old males.

scholarly journals Polygyny and Extra-Pair Paternity in a Population of Southwestern Willow Flycatchers

The Condor ◽  
2006 ◽  
Vol 108 (3) ◽  
pp. 571-578
Author(s):  
Talima Pearson ◽  
Mary J. Whitfield ◽  
Tad C. Theimer ◽  
Paul Keim
Keyword(s):  
Reproductive Success ◽  
Microsatellite Markers ◽  
Mating Strategy ◽  
Male Reproductive Success ◽  
Offspring Survival ◽  
Extra Pair Paternity ◽  
Study Population ◽  
Willow Flycatcher ◽  
Empidonax Traillii ◽  
Disproportionate Number

Abstract Although polygyny can potentially increase male reproductive success, the benefits of this strategy could be offset by losses to extra-pair paternity or reduced offspring survival. We developed microsatellite markers to assess the influence of extra-pair offspring (EPO) on reproductive success and paternity in monogamous and polygynous pairs of the facultatively polygynous Southwestern Willow Flycatcher (Empidonax traillii extimus). Based on genotypes of 140 offspring from 56 clutches over six years, 14% of nestlings in our study population were extra-pair offspring, with 23% of all successful nests containing at least one EPO. We found that polygynous males produced 2.11 ± 0.35 offspring per season, compared to 1.15 ± 0.18 for monogamous males. This increased reproductive success was due primarily to the increased number of nests of polygynous males, as the number of offspring per pair did not differ between monogamous and polygynous males. Twenty of the 140 genotyped nestlings were extra-pair offspring. Sires could be assigned to 16 of these; one polygynous male sired two EPO in one nest, two monogamous males sired eight EPO in two nests, and four nonterritorial males sired six EPO in four nests. Overall, these results indicate that in this population, females of polygynous males did not raise a disproportionate number of EPO as a result of the polygynous mating strategy of their mate, and that both territorial and nonterritorial males sired EPO.

Low frequency of extra-pair paternity in Common Gulls (Larus canus) as revealed by DNA fingerprinting

1998 ◽  
Vol 139 (4) ◽  
pp. 413-420 ◽  
Author(s):  
Monika Bukacińska ◽  
Dariusz Bukaciński ◽  
Jörg Thomas Epplen ◽  
Klaus Peter Sauer ◽  
Thomas Lubjuhn
Keyword(s):  
Dna Fingerprinting ◽  
Low Frequency ◽  
Extra Pair Paternity
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