WFRF:(Jacob Staffan)
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- Corrales Duque, CarolinaUppsala universitet,Institutionen för ekologi och genetik,Populationsbiologi och naturvårdsbiologi (författare)
Population Genetic Structure of Black Grouse (Tetrao tetrix) : From a Large to a Fine Scale Perspective
- BokEngelska2011
Förlag, utgivningsår, omfång ...
- Uppsala :Acta Universitatis Upsaliensis,2011
- 47 s.
- electronicrdacarrier
Nummerbeteckningar
- LIBRIS-ID:oai:DiVA.org:uu-150117
- ISBN:9789155480486
- https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-150117URI
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- Språk:engelska
- Sammanfattning på:engelska
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Klassifikation
Serie
- Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology,1651-6214 ;816
Anmärkningar
- Black grouse (Tetrao tetrix) is a bird species with a lek mating system found in the Palearctic boreal taiga. It is assumed that it has a continuous distribution along Scandinavia and Siberia, whereas in Central Europe it has declined during the last decades. The primary objective of this thesis was to obtain a deeper understanding of the history, systematic classification and the genetic structure of black grouse on different geographical scales using microsatellites and control region mtDNA sequences (CR). I determined how much the mating system, habitat fragmentation and historical population processes have influenced the partitioning of genetic diversity in this species. Phylogeographical results are consistent with a demographic population expansion, and the patterns of postglacial dispersal suggest that a glacial refugium was located somewhere in central Asia, and from there black grouse spread out to Europe following the retreat of glacial ice sheets. I suggest that the two European black grouse subspecies, T. t. Tetrix and T. t. britannicus correspond to only one subspecies: T. t. tetrix, and that this lineage has diverged from T.t. viridanus, a subspecies found in Kazakhstan. The British population is significantly divergent from the remaining Eurasian samples for microsatellites but it is not for mtDNA. Therefore, they should regard as a separate Management Unit and not as a subspecies. Furthermore, British black grouse occur in three independent genetic units, corresponding to Wales, northern England/southern Scotland and northern Scotland. There was also genetic structure within Sweden. Habitat fragmentation is the main cause of population genetic structure in southern Swedish black grouse. In contrast, low levels of genetic differentiation and high connectivity were found in northern Sweden due to female-biased dispersal. On a finer geographical scale, I found genetic differences between leks due to a mixture of related and unrelated individuals within leks. However, mean relatedness values hardly differed from zero. Some leks were similar to one another and I interpret this as a result of variation in local reproductive success and philopatry. These factors would cause genetic structuring but this by itself would not reveal that kin selection is operating within black grouse leks.
Ämnesord och genrebeteckningar
- NATURVETENSKAP Biologi hsv//swe
- NATURAL SCIENCES Biological Sciences hsv//eng
- NATURVETENSKAP Biologi Biologisk systematik hsv//swe
- NATURAL SCIENCES Biological Sciences Biological Systematics hsv//eng
- black grouse
- control region
- demographic expansion
- kin selection
- lek
- microsatellites
- non-invasive sampling
- postglacial colonisation
- philopatry
- phylogeography
- sex-biased dispersal
- spatial genetics
- subspecies
- suture zone
- refugia
- Biology
- Biologi
- Systematics and phylogenetics
- Systematik och fylogeni
- Biologi med inriktning mot populationsbiologi
- Biology with specialization in Population Biology
Biuppslag (personer, institutioner, konferenser, titlar ...)
- Höglund, JacobUppsala universitet,Institutionen för ekologi och genetik (preses)
- Bensch, StaffanLund University (opponent)
- Uppsala universitetInstitutionen för ekologi och genetik (creator_code:org_t)
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