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Article Reference Lessons from assembling UCEs: A comparison of common methods and the case of Clavinomia (Halictidae)
Located in Library / RBINS Staff Publications 2024
Article Reference Lessons from the calibration and sensitivity analysis of a fish larval transport model
ABSTRACT: Numerous fish populations show strong year-to-year variations in recruitment. The early life stages play a crucial role in determining recruitment and dispersal patterns. A helpful tool to understand recruitment and dispersal involves simulations with a Lagrangian transport model, which results from the coupling between a hydrodynamic model and an individual-based model. Larval transport models require sound knowledge of the biological processes governing larval dispersal, and they may be highly sensitive to the parameters selected. Various assumptions about larval traits, behaviour and other model parameters can be tested by comparing simulation results with field data to identify the most sensitive parameters and to improve model calibration. This study shows that biological parameterization is more important than inter-annual variability in explaining the year-to-year differences in larval recruitment of common sole in the North Sea and the eastern English Channel. In contrast, year-to-year variability of connectivity leads to higher variability than changes in the biological parameters. The most influential parameters are pelagic larval duration, spawning period and mortality. Calibration over a 12 yr recruitment survey shows that a scenario with low mortality associated with a long larval duration and behaviour involving nycthemeral and tidal migration best reproduces the observations. This research provides insights into factors influencing fish dispersal and recruitment, suggesting a strategy for enhancing the accuracy of models in upcoming studies. The study supports the improvement of larval dispersal modelling by incorporating an easily applicable sensitivity analysis for both calibration and validation. Incorporating sensitivity analyses enhances larval dispersal models, providing performing tools that can contribute to informed fisheries management and understanding of recruitment variability.
Located in Library / RBINS Staff Publications 2024
Article Reference PS document Lessons from the calibration and sensitivity analysis of a fish larval transport model
ABSTRACT: Numerous fish populations show strong year-to-year variations in recruitment. The early life stages play a crucial role in determining recruitment and dispersal patterns. A helpful tool to understand recruitment and dispersal involves simulations with a Lagrangian transport model, which results from the coupling between a hydrodynamic model and an individual-based model. Larval transport models require sound knowledge of the biological processes governing larval dispersal, and they may be highly sensitive to the parameters selected. Various assumptions about larval traits, behaviour and other model parameters can be tested by comparing simulation results with field data to identify the most sensitive parameters and to improve model calibration. This study shows that biological parameterization is more important than inter-annual variability in explaining the year-to-year differences in larval recruitment of common sole in the North Sea and the eastern English Channel. In contrast, year-to-year variability of connectivity leads to higher variability than changes in the biological parameters. The most influential parameters are pelagic larval duration, spawning period and mortality. Calibration over a 12 yr recruitment survey shows that a scenario with low mortality associated with a long larval duration and behaviour involving nycthemeral and tidal migration best reproduces the observations. This research provides insights into factors influencing fish dispersal and recruitment, suggesting a strategy for enhancing the accuracy of models in upcoming studies. The study supports the improvement of larval dispersal modelling by incorporating an easily applicable sensitivity analysis for both calibration and validation. Incorporating sensitivity analyses enhances larval dispersal models, providing performing tools that can contribute to informed fisheries management and understanding of recruitment variability.
Located in Library / RBINS Staff Publications 2024
Inproceedings Reference Leveraging ecosystem restoration for zoonotic spillover risk mitigation
As disease regulation is a key ecosystem service, it is crucial that we better understand the role that restoring landscapes can play in reducing disease risks. Ongoing One Health studies suggest that declining biodiversity and increasing zoonotic pathogen spill-over risk are linked. Restoration processes normally aim at increasing species diversity, wherefore it is assumed that pathogens will be diluted in restored ecosystems, hence reducing the risk of zoonotic spillover. Nonetheless, the developing species composition during restorative processes will impact dilution-amplification effects. To estimate the threshold beyond which a restored ecosystem can be considered to have reached the pathogen dilution phase, it is crucial to characterise the communities of hosts, and the prevalence of pathogens, at the different stages of recovery of an ecosystem. Using interdisciplinary methods, this project has the dual aim of examining the amplification-dilution of zoonotic pathogens in a mangrove forest of the western Peninsular Malaysia, and to estimate the frequency and duration of exposure of local communities to this hazard, so as to best mitigate the risk of zoonotic pathogen spillover.
Located in Library / RBINS Staff Publications 2025
Article Reference Lifestyle and Ice: The Relationship between Ecological Specialization and Response to Pleistocene Climate Change
Major climatic changes in the Pleistocene had significant effects on marine organisms and the environments in which they lived. The presence of divergent patterns of demographic history even among phylogenetically closely-related species sharing climatic changes raises questions as to the respective influence of species-specific traits on population struc- ture. In this work we tested whether the lifestyle of Antarctic notothenioid benthic and pelagic fish species from the Southern Ocean influenced the concerted population response to Pleistocene climatic fluctuations. This was done by a comparative analysis of sequence variation at the cyt b and S7 loci in nine newly sequenced and four re-analysed species. We found that all species underwent more or less intensive changes in population size but we also found consistent differences between demographic histories of pelagic and benthic species. Contemporary pelagic populations are significantly more genetically diverse and bear traces of older demographic expansions than less diverse benthic species that show evidence of more recent population expansions. Our findings suggest that the life- styles of different species have strong influences on their responses to the same environ- mental events. Our data, in conjunction with previous studies showing a constant diversification tempo of these species during the Pleistocene, support the hypothesis that Pleistocene glaciations had a smaller effect on pelagic species than on benthic species whose survival may have relied upon ephemeral refugia in shallow shelf waters. These find- ings suggest that the interaction between lifestyle and environmental changes should be considered in genetic analyses.
Located in Library / RBINS Staff Publications
Article Reference Lifting the veil on speleothem sampling
Located in Library / RBINS Staff Publications
Article Reference Light Trapping as a Valuable Rapid Assessment Method for Ground Beetles (Carabidae) in a Bulgarian Wetland
Located in Library / RBINS Staff Publications 2016
Article Reference Like phoenix from the ashes: How modern baleen whales arose from a fossil “dark age”
Located in Library / RBINS Staff Publications 2019
Article Reference Lilingostrobus chaloneri gen. et sp. nov., a Late Devonian woody lycopsid from Hunan, China
Located in Library / RBINS Staff Publications 2018
Article Reference Limitations for informed decision making and better management of the transboundary Lake Albert fisheries resources
Located in Library / RBINS Staff Publications 2023 OA