@unpublished{WellsteinSchroederEsselbachReinekingetal.2011,
  author  = {Camilla Wellstein and Boris Schr{\"o}der-Esselbach and Bjoern Reineking and Niklaus E. Zimmermann},
  title   = {Understanding species and community response to environmental change - A functional trait perspective},
  institution = {Institut f{\"u}r Geowissenschaften},
  pages     = {4},
  year    = {2011},
}