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  • 1.
    Delling, Bo
    et al.
    Swedish Museum of Natural History, Department of Zoology.
    Palm, Stefan
    Palkopoulou, Eleftheria
    Prestegaard, Tore
    Genetic signs of multiple colonization events in Baltic ciscoes with radiation into sympatric spring- and autumnspawners confined to early postglacial arrival2014In: Ecology and Evolution, ISSN 2045-7758, E-ISSN 2045-7758, Vol. 4, no 22, p. 4346-4360Article in journal (Refereed)
    Abstract [en]

    Presence of sympatric populations may reflect local diversification or secondary contact of already distinct forms. The Baltic cisco (Coregonus albula) normally spawns in late autumn, but in a few lakes in Northern Europe sympatric autumn and spring- or winter-spawners have been described. So far, the evolutionary relationships and taxonomic status of these main life history forms have remained largely unclear. With microsatellites and mtDNA sequences, we analyzed extant and extinct spring- and autumn-spawners from a total of 23 Swedish localities, including sympatric populations. Published sequences from Baltic ciscoes in Germany and Finland, and Coregonus sardinella from North America were also included together with novel mtDNA sequences from Siberian C. sardinella. A clear genetic structure within Sweden was found that included two population assemblages markedly differentiated at microsatellites and apparently fixed for mtDNA haplotypes from two distinct clades. All sympatric Swedish populations belonged to the same assemblage, suggesting parallel evolution of spring-spawning rather than secondary contact. The pattern observed further suggests that postglacial immigration to Northern Europe occurred from at least two different refugia. Previous results showing that mtDNA in Baltic cisco is paraphyletic with respect to North American C. sardinella were confirmed. However, the inclusion of Siberian C. sardinella revealed a more complicated pattern, as these novel haplotypes were found within one of the two main C. albula clades and were clearly distinct from those in North American C. sardinella. The evolutionary history of Northern Hemisphere ciscoes thus seems to be more complex than previously recognized.

  • 2. Hambäck, Peter A.
    et al.
    Weingartner, Elisabeth
    Dalén, Love
    Swedish Museum of Natural History, Department of Bioinformatics and Genetics.
    Wirta, Helena
    Roslin, Tomas
    Spatial subsidies in spider diets vary with shoreline structure: Complementary evidence from molecular diet analysis and stable isotopes2016In: Ecology and Evolution, ISSN 2045-7758, E-ISSN 2045-7758, Vol. 6, no 23, p. 8431-8439Article in journal (Refereed)
  • 3.
    Kadin, Martina
    Swedish Museum of Natural History, Department of Environmental research and monitoring.
    Niiranen, Susa
    Converse, Sarah J
    Linking demographic and food‐web models to understand management trade‐offs2019In: Ecology and Evolution, ISSN 2045-7758, E-ISSN 2045-7758Article in journal (Refereed)
    Abstract [en]

    Alternatives in ecosystem‐based management often differ with respect to trade‐offs between ecosystem values. Ecosystem or food‐web models and demographic models are typically employed to evaluate alternatives, but the approaches are rarely integrated to uncover conflicts between values. We applied multistate models to a capture–recapture dataset on common guillemots Uria aalge breeding in the Baltic Sea to identify factors influencing survival. The estimated relationships were employed together with Ecopath‐with‐Ecosim food‐web model simulations to project guillemot survival under six future scenarios incorporating climate change. The scenarios were based on management alternatives for eutrophication and cod fisheries, issues considered top priority for regional management, but without known direct effects on the guillemot population. Our demographic models identified prey quantity (abundance and biomass of sprat Sprattus sprattus) as the main factor influencing guillemot survival. Most scenarios resulted in projections of increased survival, in the near (2016–2040) and distant (2060–2085) future. However, in the scenario of reduced nutrient input and precautionary cod fishing, guillemot survival was projected to be lower in both future periods due to lower sprat stocks. Matrix population models suggested a substantial decline of the guillemot population in the near future, 24% per 10 years, and a smaller reduction, 1.1% per 10 years, in the distant future. To date, many stakeholders and Baltic Sea governments have supported reduced nutrient input and precautionary cod fishing and implementation is underway. Negative effects on nonfocal species have previously not been uncovered, but our results show that the scenario is likely to negatively impact the guillemot population. Linking model results allowed identifying trade‐offs associated with management alternatives. This information is critical to thorough evaluation by decision‐makers, but not easily obtained by food‐web models or demographic models in isolation. Appropriate datasets are often available, making it feasible to apply a linked approach for better‐informed decisions in ecosystem‐based management.

  • 4. Kuhn, Kerstin
    et al.
    Schwenk, Klaus
    Both, Christiaan
    Canal, David
    Johansson, Ulf S.
    Swedish Museum of Natural History, Department of Zoology.
    van der Mije, Steven
    Töpfer, Till
    Päckert, Martin
    Differentiation in neutral genes and a candidate gene in the pied flycatcher: using biological archives to track globalclimate change2013In: Ecology and Evolution, ISSN 2045-7758, E-ISSN 2045-7758, Vol. 3, no 14, p. 4799-4799Article in journal (Refereed)
  • 5. Williams, Laura
    et al.
    Colesie, C
    Ullmann, A
    Westberg, Martin
    Swedish Museum of Natural History, Department of Botany.
    Wedin, Mats
    Swedish Museum of Natural History, Department of Botany.
    Büdel, B.
    Corrigendum to: Lichen acclimation to changing environments: Photobiont switching vs. climate-specific uniqueness in Psora decipiens2017In: Ecology and Evolution, ISSN 2045-7758, E-ISSN 2045-7758, Vol. 7, p. 7130-Article in journal (Refereed)
  • 6. Williams, Laura
    et al.
    Colesie, C
    Ullmann, A
    Westberg, Martin
    Swedish Museum of Natural History, Department of Botany.
    Wedin, Mats
    Swedish Museum of Natural History, Department of Botany.
    Büdel, B
    Lichen acclimation to changing environments:photobiont switching vs. climate specific uniqueness in Psora decipiens.2017In: Ecology and Evolution, ISSN 2045-7758, E-ISSN 2045-7758, Vol. 7, p. 2560-2574Article in journal (Refereed)
  • 7. Zanatta, Florian
    et al.
    Vanderpoorten, Alain
    Hedenäs, Lars
    Swedish Museum of Natural History, Department of Botany.
    Johansson, Victor
    Patiño, Jairo
    Lönnell, Niklas
    Hylander, Kristoffer
    Under which humidity conditions are moss spores released? A comparison between species with perfect and specialized peristomes2018In: Ecology and Evolution, ISSN 2045-7758, E-ISSN 2045-7758, Vol. 8, p. 11484-11491Article in journal (Refereed)
1 - 7 of 7
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