| 1. |
- Gubili, C., et al.
(author)
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Isolation and Characterization of Polymorphic Microsatellite DNA Markers from an Amazonian White-sand Vegetation Specialist Bird, Xenopipo atronitens (Aves: Pipridae)
- 2016
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In: Wilson Journal of Ornithology. - : Wilson Ornithological Society. - 1559-4491 .- 1938-5447. ; 128:3, s. 668-672
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Journal article (peer-reviewed)abstract
- Thirteen novel polymorphic microsatellite loci were isolated and characterized from the Amazonian Black Manakin, Xenopipo atronitens. The loci were screened using 30 samples from Brazil. A total of 13 loci were variable with number of alleles per locus ranging from 2 to 17, whilst the observed and expected heterozygosities varied from 0.067-0.900 and 0.310-0.910, respectively. Five loci deviated significantly from the Hardy-Weinberg equilibrium, whereas one pair of loci deviated significantly from linkage disequilibrium. The set of markers will be a useful tool for future population genetic and kinship studies of X. atronitens, an Amazonian white-sand vegetation specialist.
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| 2. |
- Terenius, Olle
(author)
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Windsurfing in Mute Swans (Cygnus olor)
- 2016
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In: Wilson Journal of Ornithology. - : Wilson Ornithological Society. - 1559-4491 .- 1938-5447. ; 128, s. 628-631
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Journal article (peer-reviewed)abstract
- Mute Swans (Cygnus olor) were observed using tailwind as a support for high-speed water transportation on three different occasions in three different locations in Sweden. With the wings arched over the back, they traveled similar to 100 m in an inlet of the Baltic Sea in Stockholm, several hundred meters in Lake Hjalstaviken in Enkoping, and similar to 350 m in Lake Krankesjon in Lund. The speed of the movement was estimated to be much higher than normally seen for swimming swans. The first observation included two Mute Swans traveling one after another in the same direction, the second observation was of one single individual traveling towards a group of conspecifics, and the third observation was of a single individual traveling by itself. This behavior may serve as a means of medium-distance water transportation in this heavy bird species.
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| 3. |
- Sangster, George
(author)
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Acoustic differences between the scoters Melanitta nigra nigra and M. n. americana
- 2009
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In: Wilson journal of ornithology. - 1559-4491. ; 121, s. 696-702
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Journal article (peer-reviewed)abstract
- Scoter vocalizations may have a role in pair formation and pair bonding. I compared the courtship calls of male Black Scoters (Melanitta nigra nigra and M. n. americana) using published and archived recordings. Courtship calls of the two subspecies differed diagnosably in duration. In contrast, recordings from different localities within the ranges of each taxon showed no diagnosable differentiation. This finding represents the first indication these taxa differ in characters other than bill morphology and supports recent proposals to treat M. it. americana as a distinct species (M. americana). Vocal displays, in contrast to courtship displays, of anatids have not been used for assessment of species limits in Anatidae. My results indicate vocalizations are a potentially useful additional character in species-level taxonomy of anatids.
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