@article{BernhardtSchwanghart2021,
  author    = {Bernhardt, Anne and Schwanghart, Wolfgang},
  title     = {Where and why do submarine canyons remain connected to the shore during sea-level rise?},
  series = {Geophysical research letters : GRL / American Geophysical Union},
  volume    = {48},
  journal   = {Geophysical research letters : GRL / American Geophysical Union},
  number    = {10},
  publisher = {American Geophysical Union},
  address   = {Washington},
  issn      = {0094-8276},
  doi       = {10.1029/2020GL092234},
  pages     = {15},
  year      = {2021},
  abstract  = {The efficiency of sediment routing from land to the ocean depends on the position of submarine canyon heads with regard to terrestrial sediment sources. We aim to identify the main controls on whether a submarine canyon head remains connected to terrestrial sediment input during Holocene sea-level rise. Globally, we identified 798 canyon heads that are currently located at the 120m-depth contour (the Last Glacial Maximum shoreline) and 183 canyon heads that are connected to the shore (within a distance of 6 km) during the present-day highstand. Regional hotspots of shore-connected canyons are the Mediterranean active margin and the Pacific coast of Central and South America. We used 34 terrestrial and marine predictor variables to predict shore-connected canyon occurrence using Bayesian regression. Our analysis shows that steep and narrow shelves facilitate canyon-head connectivity to the shore. Moreover, shore-connected canyons occur preferentially along active margins characterized by resistant bedrock and high river-water discharge.},
  language  = {en}
}
@article{PagelAndersonCrameretal.2014,
  author    = {Pagel, J{\"o}rn and Anderson, Barbara J. and Cramer, Wolfgang and Fox, Richard and Jeltsch, Florian and Roy, David B. and Thomas, Chris D. and Schurr, Frank Martin},
  title     = {Quantifying range-wide variation in population trends from local abundance surveys and widespread opportunistic occurrence records},
  series = {Methods in ecology and evolution : an official journal of the British Ecological Society},
  volume    = {5},
  journal   = {Methods in ecology and evolution : an official journal of the British Ecological Society},
  number    = {8},
  publisher = {Wiley-Blackwell},
  address   = {Hoboken},
  issn      = {2041-210X},
  doi       = {10.1111/2041-210X.12221},
  pages     = {751 -- 760},
  year      = {2014},
  abstract  = {2. We present a hierarchical model that integrates observations from multiple sources to estimate spatio-temporal abundance trends. The model links annual population densities on a spatial grid to both long-term count data and to opportunistic occurrence records from a citizen science programme. Specific observation models for both data types explicitly account for differences in data structure and quality. 3. We test this novel method in a virtual study with simulated data and apply it to the estimation of abundance dynamics across the range of a butterfly species (Pyronia tithonus) in Great Britain between 1985 and 2004. The application to simulated and real data demonstrates how the hierarchical model structure accommodates various sources of uncertainty which occur at different stages of the link between observational data and the modelled abundance, thereby it accounts for these uncertainties in the inference of abundance variations. 4. We show that by using hierarchical observation models that integrate different types of commonly available data sources, we can improve the estimates of variation in species abundances across space and time. This will improve our ability to detect regional trends and can also enhance the empirical basis for understanding range dynamics.},
  language  = {en}
}