B-ll 



Six lined racerunner Chemidophorus sexlineatus 



Eastern hognose snake Heterodon platyrhinos 



Black racer Coluber constrictor 



Black rat snake Elaphe obsoleta 



Sparrow hawk Falco sparverius 



Plovers Charadrius spp . and Squatarola squatarola 



Turnstone Arenaria interpres 



Willet Catoptrophorus semipalmatus 



Sanderling Crocethia alba 



Gulls Larus spp . 



Terns Sterna spp . 



Horned lark Eremophilia alpestris 



Savanna sparrow Passerculus sandwichensis 



Ipswich sparrow Passerculus princeps 



Eastern cottontail Sylvilagus f loridanus 



White footed mouse Peromyscus leucopus 



House mouse Mus musculus 



Meadow jumping mouse Zapus hudsonius 



The critical environmental factors in this community 

 include high salinity (salt spray and substrate salinity) , drought 

 conditions (due to sandy soils, high winds, and high solar 

 radiation), and low nutrient availability. 



Maritime Shrub Thicket 



This community occupies the area behind the dune community 

 and is characterized by a dense growth of low shrubs, often tangled 

 with numerous lianas. Usually the closed cover of the shrub thicket 

 begins abruptly, with the shrubs massed on the ocean side of old 

 dunes. The first shrubs are commonly prostrate and become progressively 

 taller inland. The tops of these shrubs are closely sheared by wind- 

 borne salt spray and form a smooth, compact surface gradually increas- 

 ing in height inland. 



The dominant plants in this community include common wax 

 myrtle Myrica cerifera , groundsel Baccharis halmifolia, shining 

 sumac Rhus copallina redcedar Juniperus virginiana and marsh elder 

 Iva frutescens . Important vines include Virginia creeper Parthenocissus 

 quinquefolia , poison ivy Rhus radicans , green briar Smilax spp . and 

 wild grape Vitis spp . Bayberry Myrica pennsylvanica , as well as 

 highbush blueberry Vaccinium corymbosum are important shrub species 

 (Higgins et. al. , 1971.) 



Typical animals include: 



Toads Bufo spp . 



Tree frogs Hyla spp . 



Six lined racerunner Cnemidophorus sexlineatus 



