Amrei Binzer

Publications (3)0 Total impact

• Source

  Available from: Jens O Riede

  Article: Size-based food web characteristics govern the response to species extinctions

  Jens O. Riede, Amrei Binzer, Ulrich Brose, Francisco de Castro, Alva Curtsdotter, Björn C. Rall, Anna Eklöf
  Basic and Applied Ecology. 10/2011; 12:1-9.
• Article: Robustness to secondary extinctions : Comparing trait-based sequential deletions in static and dynamic food webs

  Alva Curtsdotter, Amrei Binzer, Ulrich Brose, Francisco de Castro, Bo Ebenman, Anna Eklöf, Jens O Riede, Aaron Thierry, Björn C Rall
  Basic and Applied Ecology. 01/2011; 12.
• Article: The susceptibility of species to extinctions in model communities

  Amrei Binzer, Ulrich Brose, Alva Curtsdotter, Anna Eklöf, Björn C Rall, Jens O Riede, Francisco de Castro
  [show abstract] [hide abstract]
  ABSTRACT: Despite the fact that the loss of a species from a community has the potential to cause a dramatic decline in biodiversity, for example through cascades of secondary extinctions, little is known about the factors contributing to the extinction risk of any particular species. Here we expand earlier modeling approaches using a dynamic food-web model that accounts for bottom-up as well as top-down effects. We investigate what factors influence a species’ extinction risk and time to extinction of the non-persistent species. We identified three basic properties that affect a species’ risk of extinction. The highest extinction risk is born by species with (1) low energy input (e.g. high trophic level), (2) susceptibility to the loss of energy pathways (e.g. specialists with few prey species) and (3) dynamic instability (e.g. low Hill exponent and reliance on homogeneous energy channels when feeding on similarly sized prey). Interestingly, and different from field studies, we found that the trophic level
  Basic and Applied Ecology. 01/2011; 12:590-599.