Full text: Remote sensing for resources development and environmental management (Vol. 1)

504 
Figure 8. Morne Rouge in 1950, 19 years earlier 
than Fig. 7. Photo IGN ANTIL 50 GUA 015 
Original 1:50000 reduced at about 1:66000. Different 
mangrove types hardl/visible. Only Pterocarpus and 
open swamps are discernible. Almost no changes are 
seen on Fig. 7- 
areas : Trinidad 4 000 ha (Beard 1946), Puerto Rico 
6 500 ha, Jamaica 7 000 ha, Santo-Domingo 9 000 ha-, 
Haiti 18 000 ha ; The Atlantic coasts of Colombia 
25 000 ha. 
The largest tracts occur in Cuba (about 400 000 
ha), Venezuela (about 210 000 ha including Orinoco 
delta), Florida (175 000 ha), the Atlantic shores 
of Mexico, Honduras and Panama. 
Scales 1:100000 or smaller have been used to map 
them for logging or conservation purposes, mainly 
from 1:50000 photos with few exceptions. 
Large freswater swamp forests occur in Mexico 
(Tabasco and Campeche), Panama, the Gulf of Maracaibo, 
the Orinoco Delta with much higher floristic richness 
than in the Lesser Antilles and a strong tendency 
to gregariousness : not only Pterocarpus officinalis 
but other species in the genus and many legumes 
(Crudia, Prioria, Mora, Lonchocarpus), Bombacaceae, 
Myristicaceae (Virola spp., Dialyanthera), Tabebuia, 
Licania, Triplaris, Symphonia, Carapa and many palms 
(Euterpe, Mauritia, Manicaria, Bactris, Jessenia...). 
Large herbaceous swamps occur in Tabasco (Mexico), 
near Maracaibo (Venezuela) with pure Typha (the 
so-called "eneales"), Cyperus swamps in Trinidad. 
Chanteur, G. et E. Lefèvre 1980. Etude sur l'aména 
gement de la mangrove de la Baie de Fort de France. 
Rapport O.N.F. 18 p. 1 map mimeogr. 
Feller, C., D. Imbert, et B. Rollet 1987 ? Carte 
?-floris 
fciqi 
Cole 
dee 
ations 
, one 
& 
ondables 
eet Un 
Thèse 3ème Cycle 
The mangroves of 
Forest Ecology 
gédologico- 
ae Guadeloupe. 
préparation) 
Imbert, D. 1985* Organisation spatio-temporelle 
des communautés végétales de la mangrove du Grand 
Cul de Sac Marin (Guadeloupe). 
Univ. Montpellier. 
Paijmans, K. et B. Rollet. 1978. 
Galley Reach, Papua New Guinea. 
and Management1(1). 
Portecop, J. 1976. Végétation 2 p. + colour map 
1:150000 in Lasserre G. : Atlas des Départements 
français d'Outre Mer 2. la Martinique 
Portecop, J. I98O. Végétation 3p. + colour map 
in Lasserre, G. : Atlas des Départements 
d ! Outre Mer 3. la Guadeloupe. 
Rollet, B. 1973. Comparaison de photographies aériennes 
panchromatiques et fausse couleur pour l'interpré 
tation des mangroves des Etats de Oaxaca et de 
Chiapas, Mexique. Photo-interprétation n° 4 
(4-5) illustr. 
Rollet, B. 1974. Introduction à l'étude des mangroves 
du Mexique. Photointerprétation. Types de forêts. 
Bibliographie. Bois For. Trop. n° 156 3-36 ; 
n° 157 53-74. 
Rioux, J. A. et al. 1984. Mangroves et autres forma 
tions marécageuses littorales 
Carte phytoécologique des gîtes 
moustiques. Bull, d'Ecologie 15 (D 
Map 1:50000. 
1:150000 
français 
en Guadeloupe. 
larvaires de 
95-97. Colour 
Stehlé, H. 1945-46. Les types forestiers des Iles 
caraïbes. Caribb. For. 6 : 273-468. 1 map. 
14 fig. ; 7 : 337-709. 20 fig. 
Stehlé, H. 1947. La végétation sylvatique de l'Archi 
pel caraïbe. Etude d'éco-phytosociologie. Thèse 
Ingénieur-Docteur. Montpellier. 548 p. 4 maps. 
120 fig. 132 tabl. 
Tandy, J.C. 1983. Zonage des mangroves de la Guade 
loupe. O.N.F. Folder of 7 non-edited colour maps 
1:20000. No Text. 
ACKNOWLEDGEMENTS 
We thank Institut Géographique National (I.G.N.) 
for permission to use portions of air photos for 
publication, M. Imbert for cooperation in the field 
and Office National des Forêts (O.N.F.) in Guade 
loupe for financing the mangrove research in view 
of the establishment of a Natural Reserve. 
12. CONCLUSION 
It is strongly advisable to use false colour 1:20000 
for mangrove photo-interpretation, to investigate 
spot imagery and to develop more powerful devices 
to 'identify the most varied swamp species of the 
Caribbean area. 
Concerning mapping it is most desirable to develop 
soil studies in wetlands, and not separately from 
vegetation studies, by means of integrated field 
teams. 
13. BIBLIOGRAPHY 
Beard, J.S. 1946. The natural vegetation of Trinidad. 
Oxford Forestry Memoirs n° 20 
Beard, J.S. 1949. The natural vegetation of the 
Windward and Leeward Islands. Oxford Forestry 
Memoirs n° 21 
Chanteur, G. 1981. Mangrove de la Martinique. Deuxième 
partie : de Trinité au Diamant. Rapport O.N.F. 
19 P* 4 maps mimeogr. 
Chanteur, G. 1981. Biogéographie et aménagement 
en zones de mangroves insulaires. Le cas de la 
Martinique. Thèse 3ème Cycle Univ. Toulouse 155p. 
82 ref. Maps.
	        
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