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dc.contributor.authorBruelheide, Helge-
dc.contributor.authorJansen, Florian-
dc.contributor.authorJandt, Ute-
dc.contributor.authorBernhardt‐Römermann, Markus-
dc.contributor.authorBonn, Aletta-
dc.contributor.authorBowler, Diana-
dc.contributor.authorDengler, Jürgen-
dc.contributor.authorEichenberg, David-
dc.contributor.authorGrescho, Volker-
dc.contributor.authorHarter, David-
dc.contributor.authorJugelt, Matthias-
dc.contributor.authorKellner, Simon-
dc.contributor.authorLudwig, Martin-
dc.contributor.authorWesche, Karsten-
dc.contributor.authorLütt, Silke-
dc.description.abstractAim: The loss of biodiversity has raised serious concerns about the entailing losses of ecosystem services. Here, we explore the potential of repeated habitat mapping data to identify floristic changes over time. Using one German federal state as a case study, we assessed floristic changes between the 1980s and 2010s. These habitat data have great potential for analysis because of their high spatial coverage while also posing methodological challenges such as incomplete observation data. We developed a modelling approach that accounts for incomplete observations and explored the ability to detect temporal trends. Location: The Federal State of Schleswig‐Holstein (Germany) Methods: We compiled plant species lists from the earliest (1980s) and most recent (2010s) habitat mapping survey and aligned differing habitat definitions across mapping campaigns. A total of 5,503 mapped polygons, each with a list of species records, intersected the two surveys. We accounted for underrecorded species by assigning occurrence probabilities, based on species co‐occurrence information across all surveys, using Beals' index and tested the robustness of this approach by simulation experiments. For those species with significant increases and decreases in occurrence probability, we linked these trends to the species' functional characteristics. Results: We found a systematic loss of species that are moderately threatened. Species that indicate low nitrogen supply and high soil moisture declined, suggesting a shift towards a more eutrophic and drier landscape. Importantly, assessing specific plant traits associated with losses, we also detected a decrease in species with reddish and blueish flowers and species providing nectar, pointing to a decrease of insect‐pollinated taxa. Main conclusions: The identified changes raise concerns that plant biodiversity has fundamentally changed over the last three decades, with concomitant consequences for ecosystem services, especially pollination. Given the general lack of historical standardized data, our approach for trend analyses using incomplete observation data may be widely applicable to assess long‐term biodiversity change.de_CH
dc.relation.ispartofDiversity and Distributionsde_CH
dc.subject.ddc333.7: Landflächen, Erholungsgebiete und Energiede_CH
dc.titleUsing incomplete floristic monitoring data from habitat mapping programmes to detect species trendsde_CH
dc.typeBeitrag in wissenschaftlicher Zeitschriftde_CH
zhaw.departementLife Sciences und Facility Managementde_CH
zhaw.organisationalunitInstitut für Umwelt und Natürliche Ressourcen (IUNR)de_CH
zhaw.publication.reviewPeer review (Publikation)de_CH
Appears in Collections:Publikationen Life Sciences und Facility Management

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