Genetic patterns of Black-tailed Godwit populations and their implications for conservation

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Genetic patterns of Black-tailed Godwit populations and their implications for conservation

Title: Genetic patterns of Black-tailed Godwit populations and their implications for conservation
Author: Trimbos, Krijn Baptist
Publisher: Institute of Environmental Sciences, Conservation Biology, Faculty of Science, Leiden University
Issue Date: 2013-11-05
Keywords: Conservation genetics
Black-tailed Godwit
Population genetics
Genetic differentiation
Genetic diversity
Habitat fragmentation
Habitat quality
DNA
PCR
Microsatellites
Mitochondrial DNA
Isolation
Abstract: The aim of this thesis was to investigate long term population dynamic processes in Black-tailed Godwit populations resulting from habitat fragmentation on three different spatial scales by using genetics. We demonstrated that egg shell membranes provide a good alternative DNA source for population genetic studies compared to blood samples. Through the usage of egg shell membranes we could conduct the genetic studies in this thesis a large spatial scales. Genetic population structuring was studied here because Black-tailed Godwit breeding areas seemed geographically fragmented and it was unclear if this had led to genetic separation and inbreeding as well. On a local scale we did not detect any genetic populations structuring as an effect of habitat fragmentation. We showed that habitat fragmentation, although geographically visible, has not yet lead to genetic differences between Dutch breeding populations. As such it seems that Dutch breeding areas of the Black-tailed Godwit consist of a single panmictic population. On a global scale this thesis confirmed the presence of three genetically distinct groups now recognized as subspecies. However, no clear genetic differences were found between L. l. limosa across most of its current breeding range. Possibly, there is some genetic differentiation between L. l. limosa breeding areas in the Netherlands and Sweden.
Description: Promotores: Geert R. de Snoo, Theunis Piersma, Co-promotor: Kees J.M. Musters
With summary in Dutch
Citation: Trimbos, K.B., 2013, Doctoral thesis, Leiden University
ISBN: 9789462034525
Handle: http://hdl.handle.net/1887/22110
 

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