Ecological Archives E095-242-A3

Michael J. Osland, Nicholas Enwright, Camille L. Stagg. 2014. Freshwater availability and coastal wetland foundation species: ecological transitions along a rainfall gradient. Ecology 95:2789–2802. http://dx.doi.org/10.1890/13-1269.1

Appendix C (table C1). Spearman rank correlations between climate (MAP, AI, PET), estuarine freshwater inflow (Inflow, RT), estuarine salinity, and the abundance of foundation plant species in tidal wetlands.

Table C1. Spearman rank correlations between climate (MAP, AI, PET), estuarine freshwater inflow (Inflow, RT), estuarine salinity, and tidal wetland foundation plant species abundance.

 

AI

PET

Inflow

RT

Salinity

Plants

MAP

0.98

-0.24

 0.98

 0.93

-0.82

 0.86

AI

 

-0.33

 0.96

 0.92

-0.80

 0.85

PET

 

 

-0.29

-0.37

 0.41

 NS

Inflow

 

 

 

 0.96

-0.84

 0.87

RT

 

 

 

 

-0.92

 0.84

Salinity

 

 

 

 

 

-0.77

Notes: α = 0.05 for all correlations shown. NS = not significant. Column and row abbreviations are as follows: MAP = Mean annual precipitation; AI = Aridity Index; PET = Potential evapotranspiration; Inflow = Freshwater inflow balance; RT = Freshwater replacement time (i.e., freshwater inflow balance divided by estuary volume); Salinity = Average estuary salinity; Plants = Percentage of tidal wetlands covered by foundation plant species. See text for additional information including data sources.


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