SYMP 9 - Determinism and Stochasticity in Ecological Succession

Wednesday, August 14, 2019: 1:30 PM-5:00 PM
Ballroom D, Kentucky International Convention Center
Organizer:
Sergio Estrada Villegas
Moderator:
Stefan A. Schnitzer
A central and recurrent discussion in ecology is how deterministic and stochastic processes dictate how communities assemble after disturbance. Deterministic processes hinge on biotic interactions and species-specific responses to the environment. By contrast, stochastic processes rely on random dispersal and colonization, as well as historical contingencies (e.g. previous land-use, primer effects). Both determinism and stochasticity likely influence ecological succession, however the relative importance of these two processes is unresolved. Furthermore, the relative importance of these two processes are likely context dependent; however, the role of context dependency is poorly understood. Our proposed symposium will include a diverse group of ecologists who study succession in different ecosystems to address how deterministic and stochastic processes influence many aspects of ecological succession, the relative contribution of these two processes, and the role of context dependence.
1:30 PM
Succession and priority effects between annual and perennial plants
Niv DeMalach, Stanford University; Tadashi Fukami, Stanford University
2:00 PM
Levels of ecological hierarchy clarify the determinism / stochasticity debate on tropical forest succession
Sergio Estrada-Villegas, Smithsonian Tropical Research Institute, Marquette University; Mario Bailón, Smithsonian Tropical Research Institute; Jefferson Hall, Smithsonian Tropical Research Institute; Stefan A. Schnitzer, Marquette University, Smithsonian Tropical Research Institute; Benjamin L. Turner, Smithsonian Tropical Research Institute; T. Trevor Caughlin, Boise State University; Michiel van Breugel, Smithsonian Tropical Research Institute, Yale-NUS College
2:30 PM
Context dependency between stochastic and deterministic drivers in old field succession
Scott Meiners, Eastern Illinois University; Brendan B. Haile, Eastern Illinois University; Scott V. Janis, Eastern Illinois University
3:00 PM
3:10 PM
The influence of inter-annual climatic variability in the successional dynamics of dry and wet tropical forests in abandoned fields.
Miguel Martinez-Ramos, Universidad Nacional Autonoma de Mexico; Frans Bongers, Wageningen University; Madelon Lohbeck, World Agroforestry Centre, Wageningen University; Michiel van Breugel, Smithsonian Tropical Research Institute
3:40 PM
Influences of dispersal- and niche-limitation on the seed-to-seedling transition in tropical wet forest restoration
Leland K. Werden, University of Hawai’i at Mānoa; Karen D. Holl, University of California, Santa Cruz; Rakan A. Zahawi, University of Hawai’i at Mānoa
4:10 PM
Successional trajectories following altered disturbance regimes and climate change
Laura M. Ladwig, University of Wisconsin - Madison; Ellen I. Damschen, University of Wisconsin-Madison; David A. Rogers, University of Wisconsin, Parkside
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