Table 17. Summary of data collected from 137 quadrat samples at the 

 site 3 throat section not eroded by overwash, August 1977, 



Species 



Frequency 





Cover 



De 



Total 



:nsity 

 Relative 



I.V. 2 





Pet 



Relative 



Pet 



Relative 





Agropyron pungens 



2.2 



1.1 



0.3 



0.6 



53 



1.3 



3.0 



Ammophila bveviligulata 



78.1 



38.1 



21.0 



51.2 



792 



19.5 



108.8 



Artemisia aaudata 



2.9 



1.4 



0.8 



1.9 



27 



0.7 



4.0 



Artemisia stelleriana 



56.2 



27.4 



12.4 



30.2 



2,944 



72.6 



130.3 



Cakile edentula 



8.0 



3.9 



0.4 



0.9 



13 



0.3 



5.1 



Euphorbia poly goni folia 



0.7 



0.4 











1 



<0.1 



0.4 



Lathyrue japoniaus 



35.1 



17.1 



3.3 



8.1 



97 



2.4 



27. o 



Rhus radiaans 



0.7 



0.4 



0.1 



0.1 



5 



0.1 



0.6 



Solidago sempervivens 



20.4 



10.0 



2.8 



6.8 



102 



2.5 



19.3 



Spartina patens 



0.7 



0.4 



0.1 



0.1 



19 



0.5 



1.0 



Rare sand 



97.8 





47.6 











Drift 



84.7 





15.9 











1 Diversity - 0.6346; Richness - 10. 



2 I.V.'s are importance values calculated from cover, frequency, and density 

 of the plants. 



Table 18. Summary of data collected from 137 quadrat samples at the 

 site 3 throat section not eroded by overwash, August 1978. 



Species 1 Frequency Cover Density I.V. 2 



Pet Relative Pet Relative Total Relative 



Ammophila. breviligulata 51.8 46.1 8.2 48.0 396 40.4 134.5 



Artemisia stelleriana 24.1 21.4 4.2 25.0 445 45.4 91.8 



Cakile edentula 2.2 2.0 0.2 1.4 3.3 



Lathyrus .japoniaus 20.4 18.2 2.0 11.9 104 10.6 40.6 



Solidago semperoivens n.9 12.3 2.3 13.8 36 3.7 29.8 



Bare sand 100.0 82.9 



Drift 3.6 0.5 



'Diversity = 0.6750; Richness - 5. 



2 l.V.'s are importance values calculated from cover, frequency, and density 

 of the plants. 



80 





/ 



i / / :. I :• -.-./ 



