fauna --Animal life as opposed to plant life; generally the entire group- 

 "of animals found in an area. 



foredune--The front dune immediately behind the backshore. 



groin (British, groyne) --A shore protection structure built (usually 

 perpendicular to the shoreline] to trap littoral drift or retard 

 erosion of the shore. 



H"--See diversity and Shannon-Weaver Index. 



interstitial--A term referring to the spaces between particles (e.g., 

 the spaces between the sand grains) . 



intertidal zone--The zone bounded by the high and low water extremes 

 of the tide. 



J — This represents the ratio of the observed (calculated) diversity (H ,! ) 

 to the theoretical maximum diversity, given the same number of 

 species (H" max) . 



J. H " 



H" max 



See evenness. 



Kruskal-Wallis Test--This is a nonparametric statistical method to 

 test for the differences of location in ranked data grouped by a 

 single classification. It determines whether the data come from the 

 same or different populations based on the hypothesis that if the 

 populations are the same the ranked sums of the data will be approxi- 

 mately the same. 



littoral—Several uses in ecology: (1) The zone between extreme high 

 and extreme low tides. (2) In lakes, shallow water from the shore 

 to the light compensation level. (3) The zone from high tide level 

 to the outer edge of the Continental Shelf. 



macrofauna- -Those animals equal to or larger than 0.5 millimeter in size. 



macroinvertebrate — Invertebrate animals equal to or larger than 0.5 

 millimeter in size. 



Mann-Whitney Test--This is a nonparametric statistical method using 

 ranking of the differences between the means of the sample parameters 

 from two samples. It tests the hypothesis that there is no differ- 

 ence between samples (populations) . 



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