@misc{RounsevellMetzgerWalz2019,
  author    = {Rounsevell, Mark D. A. and Metzger, Marc J. and Walz, Ariane},
  title     = {Operationalising ecosystem services in Europe},
  series = {Regional environmental change},
  volume    = {19},
  journal   = {Regional environmental change},
  number    = {8},
  publisher = {Springer},
  address   = {Heidelberg},
  issn      = {1436-3798},
  doi       = {10.1007/s10113-019-01560-1},
  pages     = {2143 -- 2149},
  year      = {2019},
  language  = {en}
}
@article{KaercherFrankWalzetal.2019,
  author    = {K{\"a}rcher, Oskar and Frank, Karin and Walz, Ariane and Markovic, Danijela},
  title     = {Scale effects on the performance of niche-based models of freshwater fish distributions},
  series = {Ecological modelling : international journal on ecological modelling and engineering and systems ecolog},
  volume    = {405},
  journal   = {Ecological modelling : international journal on ecological modelling and engineering and systems ecolog},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0304-3800},
  doi       = {10.1016/j.ecolmodel.2019.05.006},
  pages     = {33 -- 42},
  year      = {2019},
  abstract  = {Niche-based species distribution models (SDMs) have become an essential tool in conservation and restoration planning. Given the current threats to freshwater biodiversity, it is of fundamental importance to address scale effects on the performance of niche-based SDMs of freshwater species' distributions. The scale effects are addressed here in the context of hierarchical catchment ordering, considered as counterpart to coarsening grain-size by increasing grid-cell size. We combine fish occurrence data from the Danube River Basin, the hierarchical catchment ordering and multiple environmental factors representing topographic, climatic and anthropogenic effects to model fish occurrence probability across multiple scales. We focus on 1st to 5th order catchments. The spatial scale (hierarchical catchment order) only marginally influences the mean performance of SDMs, however the uncertainty of the estimates increases with scale. Key predictors and their relative importance are scale and species dependent. Our findings have useful implications for choosing proper species dependent spatial scales for river rehabilitation measures, and for conservation planning in areas where fine grain species data are unavailable.},
  language  = {en}
}
@article{WalzSchmidtRuizFrauetal.2019,
  author    = {Walz, Ariane and Schmidt, Katja and Ruiz-Frau, Ana and Nicholas, Kimberly A. and Bierry, Adeline and Lentsch, Aster de Vries and Dyankov, Apostol and Joyce, Deirdre and Liski, Anja H. and Marba, Nuria and Rosario, Ines T. and Scholte, Samantha S. K.},
  title     = {Sociocultural valuation of ecosystem services for operational ecosystem management: mapping applications by decision contexts in Europe},
  series = {Regional environmental change},
  volume    = {19},
  journal   = {Regional environmental change},
  number    = {8},
  publisher = {Springer},
  address   = {Heidelberg},
  issn      = {1436-3798},
  doi       = {10.1007/s10113-019-01506-7},
  pages     = {2245 -- 2259},
  year      = {2019},
  abstract  = {Sociocultural valuation (SCV) of ecosystem services (ES) discloses the principles, importance or preferences expressed by people towards nature. Although ES research has increasingly addressed sociocultural values in past years, little effort has been made to systematically review the components of sociocultural valuation applications for different decision contexts (i.e. awareness raising, accounting, priority setting, litigation and instrument design). In this analysis, we investigate the characteristics of 48 different sociocultural valuation applications—characterised by unique combinations of decision context, methods, data collection formats and participants—across ten European case studies. Our findings show that raising awareness for the sociocultural value of ES by capturing people's perspective and establishing the status quo, was found the most frequent decision context in case studies, followed by priority setting and instrument development. Accounting and litigation issues were not addressed in any of the applications. We reveal that applications for particular decision contexts are methodologically similar, and that decision contexts determine the choice of methods, data collection formats and participants involved. Therefore, we conclude that understanding the decision context is a critical first step to designing and carrying out fit-for-purpose sociocultural valuation of ES in operational ecosystem management.},
  language  = {en}
}
@article{VehKorupvonSpechtetal.2019,
  author    = {Veh, Georg and Korup, Oliver and von Specht, Sebastian and R{\"o}ßner, Sigrid and Walz, Ariane},
  title     = {Unchanged frequency of moraine-dammed glacial lake outburst floods in the Himalaya},
  series = {Nature climate change},
  volume    = {9},
  journal   = {Nature climate change},
  number    = {5},
  publisher = {Nature Publ. Group},
  address   = {London},
  issn      = {1758-678X},
  doi       = {10.1038/s41558-019-0437-5},
  pages     = {379 -- 383},
  year      = {2019},
  abstract  = {Shrinking glaciers in the Hindu Kush-Karakoram-Himalaya-Nyainqentanglha (HKKHN) region have formed several thousand moraine-dammed glacial lakes(1-3), some of these having grown rapidly in past decades(3,4). This growth may promote more frequent and potentially destructive glacial lake outburst floods (GLOFs)(5-7). Testing this hypothesis, however, is confounded by incomplete databases of the few reliable, though selective, case studies. Here we present a consistent Himalayan GLOF inventory derived automatically from all available Landsat imagery since the late 1980s. We more than double the known GLOF count and identify the southern Himalayas as a hotspot region, compared to the more rarely affected Hindu Kush-Karakoram ranges. Nevertheless, the average annual frequency of 1.3 GLOFs has no credible posterior trend despite reported increases in glacial lake areas in most of the HKKHN3,8, so that GLOF activity per unit lake area has decreased since the late 1980s. We conclude that learning more about the frequency and magnitude of outburst triggers, rather than focusing solely on rapidly growing glacial lakes, might improve the appraisal of GLOF hazards.},
  language  = {en}
}