Resilience to stressors and external drivers, such as climate, depends on the functional diversity of organisms present, how effectively they can access alternative resources during unfavourable periods, their mobility, and the degree to which local adaptation or resistance is facilitated by genetic diversity. Consequently, connectivity will be a major influence on resilience.
The sediment archive and routine biological monitoring yield information on temporal turnover of assemblages over centennial or decadal time scales, respectively.
UCL will be overseeing the work programme on “Resilience of community assemblages to stressors over centennial timescales” in which we will compare diatoms (no dispersal limitation) and macrophytes (dispersal limitation likely) in lake sediment cores to determine if connectivity and mobility buffer responses to change.
We will assist with retrieval and analysis of existing data held in the AMPHORA database at UCL. It is hoped that the outputs of this work will provide ground-truthing of the land cover inferred stressor map produced in modelling and mapping work for both lowland and upland landscapes. Helen and Viv, with input from Carl Sayer, will also jointly lead the task “Restoration endpoints and trajectories” where palaeoecological data will be used to provide novel insights into the influence of connectivity on the timing, trajectory and potential for biological recovery in source populations. We will co-ordinate the compilation of multi-indicator palaeoecological data from new and existing cores.