. Bonner zoologische Monographien. Zoology. 14. J FMAMJ J ASOND J FMAMJ JASOND J FMAMJJ ASOND 0 TURBO 0 CHIGORODÖ 0 VILLA ARTEAGA Fig. 6: Average monthly rainfall (mm) in the Urabä region, NW Colombia. Data from Parsons (1967, Table 1). Explanation: 1 Turbo, airport 1931—1960, 13 years incomplete. 2 Chigorodö, 1951—1954, 1960. 3 Villa Arteaga, 1952—1957, 1959—1960. The average annual rainfall at other stations as numbered on Fig. 5 is estimated as follows: no. 4, Quibdö 10 545 mm; no. 5, Ciudad Mutis, Bahia Solano 4501 mm; no. 6, Juradö 4376 mm; no. 7, Acandi 3280 mm. 5. Vegetation The lowland
. Bonner zoologische Monographien. Zoology. 14. J FMAMJ J ASOND J FMAMJ JASOND J FMAMJJ ASOND 0 TURBO 0 CHIGORODÖ 0 VILLA ARTEAGA Fig. 6: Average monthly rainfall (mm) in the Urabä region, NW Colombia. Data from Parsons (1967, Table 1). Explanation: 1 Turbo, airport 1931—1960, 13 years incomplete. 2 Chigorodö, 1951—1954, 1960. 3 Villa Arteaga, 1952—1957, 1959—1960. The average annual rainfall at other stations as numbered on Fig. 5 is estimated as follows: no. 4, Quibdö 10 545 mm; no. 5, Ciudad Mutis, Bahia Solano 4501 mm; no. 6, Juradö 4376 mm; no. 7, Acandi 3280 mm. 5. Vegetation The lowlands around the Colombian Andes are in part covered with extensive forests (Fig. 1), although recent burning and clearing have re- duced the drier woodlands to an alarming extent in the more accessible areas. The open woods or Dry Tropical Forest that originally covered the northern Colombian plains have largely disappeared; only small remnants are still preserved in the valleys of low ranges close to the Caribbean coast, e. g. Serrania de San Jacinto. More extensive humid forests exist along the northern base of the Central and Western Andes as well as in the humid middle Magdalena Valley. These forests are broadly connected around the Gulf of Urabä with the wet forests in the Pacific lowlands of Colombia and northwestern Ecuador. The trans-Andean humid forests continue into Middle America where they cover most of the Caribbean slope from Panama to Mexico and smaller portions of the Pacific slope, particularly in the Darien region of eastern Panama and in southwestern Costa Rica. Evergreen Rain Forest (Pluvial and Wet Forest): No pronounced dry season; precipitation 4 000 to over 10 000 mm per year. Heights of trees 30 to 40 meters. Almost daily showers keep the forest humid including the understory and the forest floor. Natural clearings are rare. Schematic vege- tation profiles across a forest river in its upper, middle, and lower course (Fig. 7) indicate that an
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Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectzoology
