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Library Temporal stability of vegetation indicators of wetland condition

Temporal stability of vegetation indicators of wetland condition

Temporal stability of vegetation indicators of wetland condition

Resource information

Date of publication
december 2013
Resource Language
ISBN / Resource ID
AGRIS:US201500163388
Pages
69-75

Vegetation indices are widely employed to evaluate wetland ecological condition, and are expected to provide sensitive and specific detection of environmental change. Most studies evaluate the performance of condition assessment metrics in the context of the data used to calibrate them. Here we examined the temporal stability of the Florida Wetland Condition Index (FWCI) for vegetation of depressional forested wetlands by resampling sites in 2008 that were previously sampled to develop the FWCI in 2001. Our objective was to determine if FWCI, a composite of six vegetation-based metrics, provides a robust measure of condition given inter-annual variation in environmental conditions (i.e., rainfall) between sampling periods. To that end, we sampled 22 geographically isolated wetlands in north Florida that spanned a wide land use/land cover intensity gradient. Our results suggested the FWCI is robust. We observed no significant paired difference in FWCI across or within land use categories, and the relationship between FWCI in 2001 and 2008 was strong (r²=0.88, p

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Authors and Publishers

Author(s), editor(s), contributor(s)

Deimeke, Elizabeth
Cohen, Matthew J.
Reiss, Kelly C.

Publisher(s)
Data Provider