48 research outputs found

    A primer on choosing goals and indicators to evaluate ecological restoration success

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    We discuss aspects of one of the most important issues in ecological restoration: how to evaluate restoration success. This rst requires clearly stated and justied restoration goals and targets; this may seem “obvious” but in our experience, this step is often elided. Indicators or proxy variables are the typical vehicle for monitoring; these must be justied in the context of goals and targets and ultimately compared against those to allow for an evaluation of outcome (e.g. success or failure). The monitoring phase is critical in that a project must consider how the monitoring frequency and overall design will allow the postrestoration trajectories of indicators to be analyzed. This allows for real‐time management adjustments—adaptive management (sensu lato)—to be implemented if the trajectories are diverging from the targets. However, as there may be large variation in early postrestoration stages or complicated (nonlinear) trajectory, caution is needed before committing to management adjustments. Ideally, there is not only a goal and target but also a model of the expected trajectory—that only can occur if there are sucient data and enough knowledge about the ecosystem or site being restored. With so many possible decision points, we focus readers' attention on one critical step—how to choose indicators. We distinguish generalizable and specic indicators which can be qualitative, semiquantitative, or quantitative. The generalizable indicators can be used for meta‐analyses. There are many options of indicators but making them more uniform would help mutual comparisons among restoration projects

    <scp>ReSurveyEurope</scp>: A database of resurveyed vegetation plots in Europe

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    AbstractAimsWe introduce ReSurveyEurope — a new data source of resurveyed vegetation plots in Europe, compiled by a collaborative network of vegetation scientists. We describe the scope of this initiative, provide an overview of currently available data, governance, data contribution rules, and accessibility. In addition, we outline further steps, including potential research questions.ResultsReSurveyEurope includes resurveyed vegetation plots from all habitats. Version 1.0 of ReSurveyEurope contains 283,135 observations (i.e., individual surveys of each plot) from 79,190 plots sampled in 449 independent resurvey projects. Of these, 62,139 (78%) are permanent plots, that is, marked in situ, or located with GPS, which allow for high spatial accuracy in resurvey. The remaining 17,051 (22%) plots are from studies in which plots from the initial survey could not be exactly relocated. Four data sets, which together account for 28,470 (36%) plots, provide only presence/absence information on plant species, while the remaining 50,720 (64%) plots contain abundance information (e.g., percentage cover or cover–abundance classes such as variants of the Braun‐Blanquet scale). The oldest plots were sampled in 1911 in the Swiss Alps, while most plots were sampled between 1950 and 2020.ConclusionsReSurveyEurope is a new resource to address a wide range of research questions on fine‐scale changes in European vegetation. The initiative is devoted to an inclusive and transparent governance and data usage approach, based on slightly adapted rules of the well‐established European Vegetation Archive (EVA). ReSurveyEurope data are ready for use, and proposals for analyses of the data set can be submitted at any time to the coordinators. Still, further data contributions are highly welcome.</jats:sec

    Botanical research and ecological restoration

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    Edited volume on restoration ecology and use of succession in restoration processess

    Introduction: Management and restoration of grasslands

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    Introduction to the whole special volum

    How do geobotanical studies reflect changes in the Třeboň Protected Landscape area?

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    Changes in vegetation in meadows, forests, fishponds, and ruderal and segetal vegetation were documented for the past several decades. The results from unappropriate agricultural, forestry and fishpond management. The negative trends from seveties and eighties unfortunately continue

    Restoration of grassland ecosystems in present restoration ecology

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    The following conclusions have been drawn. (a) Both degradation and restoration seem to be faster on nutrient-rich than on nutrient-poor sites but the latter may be easier encroached by woody species. (b) Restoration is difficult if water and/or nutrient regimes have changed during degradation. (c) Restoration is easier if target species still occur either at the site itself or in its close surroundings. (d) Some restoration measures can be profitable for one group of organisms and detrimental for some others, thus consultancy among experts is needed prior to the start of the restoration. (e) Long-lasting management and monitoring must be guaranteed. Obstacles to successful restoration are also reviewed. Finally, the need of cooperation between scientists and practitioners is emphasised
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