While many plant species are considered threatened under anthropogenic pressure, it remains uncertain how rapidly
we are losing plant species diversity. To fill this gap, we propose a Global Legume Diversity Assessment (GLDA) as the first
step of a global plant diversity assessment. Here we describe the concept of GLDA and its feasibility by reviewing relevant
approaches and data availability. We conclude that Fabaceae is a good proxy for overall angiosperm diversity in many habitats
and that much relevant data for GLDA are available. As indicators of states, we propose comparison of species richness with
phylogenetic and functional diversity to obtain an integrated picture of diversity. As indicators of trends, species loss rate and
extinction risks should be assessed. Specimen records and plot data provide key resources for assessing legume diversity at a
global scale, and distribution modeling based on these records provide key methods for assessing states and trends of legume
diversity. GLDA has started in Asia, and we call for a truly global legume diversity assessment by wider geographic collaborations
among various scientists.
Description:
This paper is an outcome of the workshop on the global legume
diversity assessment held from 19 to 22 August 2011 in Kyushu University,
Japan.
