tiofl apaii RrpW a sparse ami patchy 

 cover of Zostem. 

 Mangroves can be said i" lid as 



land-builders ni\ lidal shores il they 



Hap sudiraenl ftftd hflilW op ctepOsi' 



lioual terrain that would not other- 

 wise have developed, Aceoidiui' lo 

 one view, mangrove communities 

 bring ahout the advance ol the shore 

 line hv spreading forward tWW the 

 mudllats in the inter-tidal zone 

 (Davis I'MO. Richaids I *>52 ) . Others 

 havC argued that mangroves advance 

 only after the inter tidal /one lias 

 been raised by sedimentation to a 

 level suitable for their colonisation, 

 so thai the spread of mangroves is 



a consequence, rather than a cause 

 ol Shoreline advance (Seholl |%xj 



Accretion within mangrove eon, 

 munilies gradually huilds up the 

 lo a level where salt marsh pj^ 

 can move in and take over ( Plate I \ 

 hut again ihcic is the question fj 

 whether ihe mangtows actually pro 

 mOt« accretion, or whether the. 

 simply occupy a zone within which 

 accretion would take place aiivu ; , v 



I he extent to which mangrove, 

 can advance the shoreline and then 

 promote veilical accietion ol ggijj. 

 ment may vary with the structure of 

 the mangrove community. Avhr mM 

 Foi example, has nctwoiks id venial 



IM-Jtc 2 



Pneumatophoics 

 under AtiitHHM 



matin* M V«riso 



190 



Vict Nat Vol gf 



