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  • Key words: Copulation behavior – DNA fingerprinting –Fringillacoelebs– Paternity – Sperm competition  (1)
  • PHYLOGEOGRAPHY  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Copulation behavior and paternity in the chaffinch (1994)
    Springer
    Behavioral ecology and sociobiology 34 (1994), S. 149-156 
    Details
    ISSN: 1432-0762
    Keywords: Key words: Copulation behavior – DNA fingerprinting –Fringillacoelebs– Paternity – Sperm competition
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary. We investigated two aspects of sperm competition in a wild population of chaffinches Fringilla coelebs: copulation behavior and genetic parentage determined by DNA fingerprinting. Pairs copulated at a high rate before laying, peaking at 4.4 copulation attempts per hour on day −3 relative to laying, with an average of 207 copulation attempts (83 behaviorally successful) per clutch. Extra-pair copulation attempts (n = 20) made up 7.8% of all copulation attempts that females were involved in. The rate at which pairs copulated was lower during egg-laying, but there was no evidence that this was due to the male of the pair timing copulations to coincide with an ‘insemination window’; it was more likely due to the fact that females solicited copulations at a lower rate. Both sexes solicited copulations but males solicited mainly extra-pair copulations. DNA fingerprinting showed that 17.0% of chicks (n = 47) in 23% of broods (n = 13) were fathered by a male other than the one paired to their mother. There was no evidence of intraspecific brood parasitism. In three cases where we were able to identify the father of extra-pair offspring it proved to be a neighboring male.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00164185
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  • 2
    Electronic Resource
    Electronic Resource
    Archive Contributions to a Molecular Phylogeography of the Toad Bufo calamita in Britain (1998)
    Springer
    Biochemical genetics 36 (1998), S. 219-228 
    Details
    ISSN: 1573-4927
    Keywords: PHYLOGEOGRAPHY ; MICROSATELLITE LOCI ; MUSEUM SPECIMENS
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract A complete phylogeographic analysis of anyspecies requires sampling throughout its biogeographicalrange. In the case of the natterjack toad Bufocalamita in Britain, recent local extinctions haveleft substantial areas of its historical rangewithout extant populations. We therefore obtained tissuesamples of archived Bufo calamita from fourmuseums in the United Kingdom. A range of tissues(tongue, liver, skin, lung, and larval tail) was sampledfrom a total of 33 individual animals. DNA was extractedand eight polymorphic microsatellite loci were scored.One or more loci were amplified successfully from 27 individuals, and sufficient data wereobtained from regions with few or no survivingpopulations to supplement a phylogeographic analysisbased on extant populations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1018776925261
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