Dynamics-based characterization and classification of the biodiversity
indicators
Abstract
Various biodiversity indicators, such as species richness, total
abundance and species diversity indices, have been developed to capture
the state of ecological community over space and time. As biodiversity
is a multifaceted concept, it is important to understand the dimension
of biodiversity reflected by each indicator for successful biodiversity
conservation and management. Here we present a method to characterize
and classify biodiversity indicators according to their dynamical
similarity and apply the methodology to the monitoring data of a marine
fish community under the intermittent anthropogenic warm water
discharge. Our analysis reveals that ten biodiversity indicators can be
classified into three super-groups that possibly reflect the same
dimension of biodiversity. Group I (species richness) with the most
robust dynamics to the temperature changes; Group II (species diversity
and total abundance) showing an abrupt change in the middle of the
monitoring period, presumably due to a change in temperature; Group III
(species evenness) with the highest sensitivity to temperature changes.
The finding suggests that selecting indicators from different
super-groups might help to fully assess biodiversity response to
environmental change.