16 research outputs found

    Monitoring of species' genetic diversity in Europe varies greatly and overlooks potential climate change impacts.

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    Genetic monitoring of populations currently attracts interest in the context of the Convention on Biological Diversity but needs long-term planning and investments. However, genetic diversity has been largely neglected in biodiversity monitoring, and when addressed, it is treated separately, detached from other conservation issues, such as habitat alteration due to climate change. We report an accounting of efforts to monitor population genetic diversity in Europe (genetic monitoring effort, GME), the evaluation of which can help guide future capacity building and collaboration towards areas most in need of expanded monitoring. Overlaying GME with areas where the ranges of selected species of conservation interest approach current and future climate niche limits helps identify whether GME coincides with anticipated climate change effects on biodiversity. Our analysis suggests that country area, financial resources and conservation policy influence GME, high values of which only partially match species' joint patterns of limits to suitable climatic conditions. Populations at trailing climatic niche margins probably hold genetic diversity that is important for adaptation to changing climate. Our results illuminate the need in Europe for expanded investment in genetic monitoring across climate gradients occupied by focal species, a need arguably greatest in southeastern European countries. This need could be met in part by expanding the European Union's Birds and Habitats Directives to fully address the conservation and monitoring of genetic diversity

    Sympatric divergence and clinal variation in multiple coloration traits of Ficedula flycatchers

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    Geographic variation in phenotypes plays a key role in fundamental evolutionary processes such as local adaptation, population differentiation and speciation, but the selective forces behind it are rarely known. We found support for the hypothesis that geographic variation in plumage traits of the pied flycatcher Ficedula hypoleuca is explained by character displacement with the collared flycatcher Ficedula albicollis in the contact zone. The plumage traits of the pied flycatcher differed strongly from the more conspicuous collared flycatcher in a sympatric area but increased in conspicuousness with increasing distance to there. Phenotypic differentiation (PST) was higher than that in neutral genetic markers (FST), and the effect of geographic distance remained when statistically controlling for neutral genetic differentiation. This suggests that a cline created by character displacement and gene flow explains phenotypic variation across the distribution of this species. The different plumage traits of the pied flycatcher are strongly to moderately correlated, indicating that they evolve non-independently from each other. The flycatchers provide an example of plumage patterns diverging in two species that differ in several aspects of appearance. The divergence in sympatry and convergence in allopatry in these birds provide a possibility to study the evolutionary mechanisms behind the highly divergent avian plumage patterns.Peer reviewe

    Bringing genetic diversity to the forefront of conservation policy and management

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    In this essay we explore questions on how to increase the visibility and utility of genetic information for biodiversity managers and policy makers. This is discussed in the light of Aichi CBD Target 13, which for the first time impels signatories to minimise genetic erosion and safeguard genetic diversity. Drawing on qualitative results from a questionnaire sent to European conservation professionals by the ConGRESS Framework 7 Support Action (www.congressgenetics.eu), we summarise our preliminary findings on the attitudes and experiences of European conservation professionals in using genetics. We then discuss the implications of these findings for academics involved in conservation genetics and suggest that a much closer partnership between academic conservation geneticists and conservation practitioners is necessary if the full potential of genetic tools in conservation is to be realised
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