TY - JOUR

T1 - Moving beyond abundance distributions

T2 - neutral theory and spatial patterns in a tropical forest

AU - May, Felix

AU - Huth, Andreas

AU - Wiegand, Thorsten

PY - 2015/3/7

Y1 - 2015/3/7

N2 - Assessing the relative importance of different processes that determine the spatial distribution of species and the dynamics in highly diverse plant communities remains a challenging question in ecology. Previous modelling approaches often focused on single aggregated forest diversity patterns that convey limited information on the underlying dynamic processes. Here, we use recent advances in inference for stochastic simulation models to evaluate the ability of a spatially explicit and spatially continuous neutral model to quantitatively predict six spatial and non-spatial patterns observed at the 50 ha tropical forest plot on Barro Colorado Island, Panama. The patterns capture different aspects of forest dynamics and biodiversity structure, such as annual mortality rate, species richness, species abundance distribution, beta-diversity and the species-area relationship (SAR). The model correctly predicted each pattern independently and up to five patterns simultaneously. However, the model was unable to match the SAR and beta-diversity simultaneously. Our study moves previous theory towards a dynamic spatial theory of biodiversity and demonstrates the value of spatial data to identify ecological processes. This opens up new avenues to evaluate the consequences of additional process for community assembly and dynamics.

AB - Assessing the relative importance of different processes that determine the spatial distribution of species and the dynamics in highly diverse plant communities remains a challenging question in ecology. Previous modelling approaches often focused on single aggregated forest diversity patterns that convey limited information on the underlying dynamic processes. Here, we use recent advances in inference for stochastic simulation models to evaluate the ability of a spatially explicit and spatially continuous neutral model to quantitatively predict six spatial and non-spatial patterns observed at the 50 ha tropical forest plot on Barro Colorado Island, Panama. The patterns capture different aspects of forest dynamics and biodiversity structure, such as annual mortality rate, species richness, species abundance distribution, beta-diversity and the species-area relationship (SAR). The model correctly predicted each pattern independently and up to five patterns simultaneously. However, the model was unable to match the SAR and beta-diversity simultaneously. Our study moves previous theory towards a dynamic spatial theory of biodiversity and demonstrates the value of spatial data to identify ecological processes. This opens up new avenues to evaluate the consequences of additional process for community assembly and dynamics.

KW - Didactics of sciences education

KW - Modelling

KW - point-pattern analysis

KW - spatially explicit neutral model

KW - species-area relationship

KW - Gender and Diversity

KW - Beta-diversity

KW - distance decay

KW - pattern-oriented

UR - http://www.scopus.com/inward/record.url?scp=84921982316&partnerID=8YFLogxK

U2 - 10.1098/rspb.2014.1657

DO - 10.1098/rspb.2014.1657

M3 - Journal articles

C2 - 25631991

VL - 282

JO - Proceedings of the Royal Society B

JF - Proceedings of the Royal Society B

SN - 0962-8452

IS - 1802

M1 - 2014.1657

ER -