References included in article:

Order of appearence	Full citation	SRCosmos Link
1	Araujo AC, (2001) Flora, fenologia de floracao e sindromes de polinizacao em capoes do Pantanal sul mato grossense. PhD Thesis, Unicamp.
2	Blake JG, Loiselle BA, (1991) Variation in resource abundance affects capture rates of birds in three lowland habitats in Costa Rica. Auk, 108: 114-130.
3	Bibby CJ, Burgess ND, Hill DA, (1992) Bird census techniques. London, Academic Press.
4	Bullock SH, Solis-Magallanes JA, 1990, Phenology of canopy trees of a tropical deciduous forest in Mexico. Biotropica, 22: 22-35.
5	Del-Hoyo J, Elliot A, Sardatal J, (1997) Handbook of the birds of the world, Vol 7. Sangrouse to Cuckoos. Lynx, Barcelona.
6	Fournier LA, (1974) Un metodo cuantitativo para la medicion de caracteristicas fenologicas en arboles. Turrialba, 24: 422-423.
7	Frankie GW, Baker HG, Opler PA, (1974) Comparative phenological studies of trees in tropical wet and dry forests in the lowlands of Costa Rica. J. Ecol., 62: 881-919.
8	Funch LS, Funch R, Barroso GM, (2002) Phenology of gallery and montane forest in the Chapada Diamantina, Bahia, Brazil. Biotropica, 34: 40-50.
9	Galetti M, Laps R, Pizo MA, (2000) Frugivory by Toucans (Ramphastidae) at Two Altitudes in the Atlantic Forest of Brazil. Biotropica, 32: 842-850.
10	Graham CH, (2001) Factors influencing movement patterns of kell-billed toucans in fragmented tropical landscape in southern Mexico. Conserv. Biol., 15: 1789-1798.
11	Griz LMS, Machado ICS, (2001) Fruiting phenology and seed dispersal syndromes in caatinga, a tropical dry forest in the northeast of Brazil. J. Trop. Ecol., 17: 303-321.
12	Guix JC, Ruiz X, Jover L, (2001) Resource partitioning and interspecific competition among coexisting species of guans and toucans in SE Brazil. Neth. J. Zool., 51: 285-297
13	Hejl SJ, Verner J, Bell W, (1990) Sequential versus initial observations in studies of avian foraging. Stud. Av. Biol., 13: 166-173.
14	Howe HF, (1977) Bird activity and seed dispersal of a tropical wet forest tree. Ecology, 58: 539-550.
15	Howe HF, (1981) Dispersal of a Neotropical nutmeg (Virola sebifera) by birds. Auk, 98: 88-98.
16	Howe HF, (1993) Aspects of variation in a Neotropical seed dispersal system. Vegetatio, 107/108: 149-162.
17	Howe FH, Smallwood J, (1982) Ecology of seed dispersal. Ann. Rev. Ecol. Syst., 13: 201-228.
18	Howe HF, & VANDE KERCKHOVE A.G., (1981) Removal of wild nutmeg (Virola surinomensis) Crops by birds. Ecology, 62: 1093-1106.
19	Kinnaird MFO, Brien TG, Suryadi S, (1996) Population fluctuation in Sulawesi Red-Knobbed Hornibills: tracking figs in space and time. Auk, 113: 431-440.
20	Kubitzki K, Ziburski A, (1994) Seed dispersal in flood plain forest of Amazonia. Biotropica, 26: 30-43.
21	Leighton M, Leighton D, (1983) Vertebrate responses to fruiting seasonality within a bornean rain forest. In: S. L. Sutton, T.C. Whitmore & A.C. Chadwick (eds.). Tropical Rain Forest: Ecology and Manageament. Blackwell Scientific Publications, Oxford, England.
22	Levey DJ, (1988) Spatial and temporal variation in Costa Rican fruit and fruit-eating bird abundance. Ecol. Monog., 58: 251-269.
23	Marsden SJ, (1999) Estimation of parrot and hornbill densities using a point count distance sampling method. Ibis, 141: 377-390.
24	Milton K, Windsor DM, Morrison DW, Estribi MA, (1982) Fruiting phenologies of two tropical Ficus species. Ecology, 63: 752-762.
25	Oliveira-Filho AT, Ratter JA, Shepered GJ, (1990) Floristic composition and community structure of a Brazilian gallery forest. Flora, 184: 103-117.
26	Oliveira-Filho AT, Vilela EA, Carvalho DA, Gavilanes ML, (1994) Effects of soils and topography on the distribution of tree species in a tropical riverine forest in south-eastern Brazil. J. Trop. Ecol., 10: 483-508.
27	Peres CA, (1994) Primate responses to phenological changes in an Amazonian terra firme forest. Biotropica, 26: 98-112.
28	Pott A, Pott VJ, (1994) Plantas do Pantanal. Brasilia, Embrapa, 320p.
29	Powell VNG, Bjork RD, (1994) Implications of altitudinal migration for conservation strategies to protect tropical biodiversity: a case study of the quetzal Pharomachrus mocinnoi at Monte Verde, Costa Rica. Bird. Conserv. Inter., 4: 243-255.
30	Ragusa-Netto J, (2002) Fruiting phenology and consump-tion by birds in Ficus calyptroceras (Miq.) Miq. (Moraceae). Braz. J. Biol., 62: 339-346.
31	Renton K, (2001) Lilac-crowned parrot diet and food resource availability: resource tracking by a parrot seed predator. Condor, 103: 62-69.
32	Schoener TW, (1968) Sizing feeding territories among birds. Ecology, 49: 123-141.
33	Schupp EW, (1993) Quantity quality, and the effectiveness of seed dispersal by animals. Vegetatio, 107/108: 15-29.
34	Sick H, (1997) Ornitologia Brasileira. Nova Fronteira, Rio de Janeiro, 912p.
35	Skutch AF, (1971) Life history of the Keel-billed Toucan. Auk, 88: 381-396.
36	Stiles EW, (1993) Influence of pulp lipids on fruit preferences by birds. Vegetatio 107/108: 227-236.
37	Terborgh J, (1986) Keystone plant resources in the tropical forest. In: M. Soule (ed), Conservation Biology. Sinauer, Sunderland, Massachusetts.
38	Terborgh J, Robinson S, PARKER III T., MUNN C. & PIERPONT N., (1990) Structure and organization of an Amazonian forest bird community. Ecol. Monogr., 60: 213-238.
39	VAN SCHAIK C.P., TERBORGH J.W. & WRIGHT S.J., (1993) The phenology of tropical forests, adaptive signifi-cance, and consequences for primary consumers. Ann. Rev. Ecol. Syst., 24: 353-377.
40	Wheelwright NT, (1983) Fruits and the ecology of resplendent quetzals. Auk, 100: 286-301.
41	Wheelwright NT, Haber WA, Murray KG, Guindon C, (1984) Tropical fruit eating birds and their food Plants: a survey of a Costa Rican lower montane forest. Biotropica, 16: 173-192.