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Palm density varied almost two orders of magnitude among studied sites (920 individuals per Ha at LSBS secondary forest compared with 36 individuals per Ha in the primary forest of BCNP, Table 1).
The primary forest fragments of Manu and FEP exhibited similar trends as those of primary forests without extraction at LSBS and BCNP, both having a lower proportion of seedlings and more reproductive individuals.
TABLE 1 Density of Euterpe precatoria individuals with at least one leaf of 50cm (from the base to the tip of the frond), in seven study sites in Costa Rica (LSBS = La Selva Biological Station, BCNP = Braulio Carrillo National Park, FEP = Finca El Progreso) LSBS LSBS BCNP BCNP Primary Secondary Primary Secondary Records of extraction No No No No Number of Individuals 57 207 10 55 Area Measured 4 500 2 250 2 250 2 250 ([m.
and Glossophaga commissarisi) captured most frequently at LSBS.
During the study, fruit or seeds of 47 identified plant species were consumed by one or more of the 15 frugivorous bat species in LSBS.
Food habit indices differed significantly among the most common frugivorous bat species at LSBS and significant differences were found in fruit consumption patterns between bats at the generic level (Table 2).
Puntarenas P, ST; 1 m, 1 f, 4 VIII 1964, 4 km S Pandora, Limon P, TH; 1 m, 1 f, 26 VI 1965, Roxana, Limon P, NO; 1 m, 14 VII 1965, Turrialba, Cartago P, NA; 1 m, 1 f, 18 IX 1966, LSBS (60 m), 1 km S Puerto Viejo, Heredia P, MP; 1 m, 19 IX 1966, LSBS, Heredia P, MP; 1 m, 1 f, 20 IX 1966, LSBS, Heredia P, MP; 1 m, 21 IX 1966, LSBS, Heredia P, MP; 1 m, 22 IX 1966, LSBS, Heredia P, MP; 1 m, 1 f, 23 IX 1966, LSBS, Heredia P, MP; 1 f, 2 XI 1966, Bosque Florencia (600 m), stream, 5 km SE Turrialba, Cartago P, MP; 1 m, 18 III 1967, Rincon de Osa, Puntarenas P, DP; 1 m, 1 f, 9 IV 1967, LSBS, Heredia P, MP; 1 m, 12 IV 1967, LSBS, Heredia P, MP; 1 m, 19 IV 1967, 6.
l), Limon P, UN; 1 m, 21 II 1976, 5 km W Portete, Limon, Limon P, DP; 1 m, 10 IV 1976, LSBS, 2.
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