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Spatial statistics at multiple scales
Endorsed by the ESA Statistical Ecology
Section
Tuesday, August 9, 8 AM - 11:30 AM,
Meeting Rooms 210a-b-e-f, Level 2, Palais des congrès de Montréal
Organizers:
Pierre Legendre (Pierre.Legendre@umontreal.ca),
Marie-Josée Fortin
Description:
Species assemblages are controlled by a variety
of processes, biotic and abiotic, that generate spatial structures at different
scales. The challenge of ecology is to untangle the scales of response of
communities and relate them to processes operating at similar scales. A variety
of methods for approaching that problem will be presented. Talks will be devoted
to distance-based eigenvector maps (which include PCNM analysis), will use a
geostatistical (coregionalization) approach to identify processes at various
spatial scales, or focus on spatial autocorrelation functions. A method for
classifying multi-scale patters in multivariate data will be presented. A talk
will compare patch-growing and edge-detection methods to delineate homogeneous
areas in multi-scale spatial patterns, while another will focus on spatial
graphs for cross-scale corridor analysis. The methods presented during the
session will be compared during a 30-minute joint workshop in which the speakers
will apply their methods to a single data set.
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