Monteverde : Ecology and Conservation of a Tropical Cloud Forest

by loss of dispersers or mates via extirpation or insularization. Even if plant and pollinator popula- tions persist in fragment ...

persers of seeds dispersed primarily by birds (Byrne and Levey 1993, Levey and Byrne 1993); their importance has not been invest ...

unaware of any representatives of these in Monte- verde. Fruit-eating fish and large herbivorous lizards are absent from the are ...

1986). Analogous spectra of feeding behaviors exist in bats and primates (Jordano 1992). In Monteverde, the same dichotomy of fr ...

feeding behavior characteristics. The feeding records for Monteverde (Wheelwright et al. 1984, Bronstein and Hoffman 1987, Wheel ...

have led to allometric relationships (change in fruit shape as a function of size; Mazer and Wheelwright 1993). Both within and ...

up to an hour, and some toucanets stayed in the same tree for up to 4 hr, but such cases were rare. Visit lengths tended to be l ...

pp. 283-286) suggested that seasonal patterns of seed- ling survival in three species of pioneer plants might constrain fruiting ...

suiting in highly clumped seed distributions away from the parent plant. During the breeding season, male bellbirds spend 80% of ...

catchers, and Prong-billed Barbets) deposit most seeds within 50-60 m of parent plants, although all are ca- pable of moving see ...

evidence for gap preference among understory fruit- eating birds exists (Murray 1988). The Black-faced Solitaire shows a signifi ...

seed passage rate is now known from two studies. The possibility that secondary chemicals in fruits might have other pharmacolog ...

Table 8,2, Flower measurements, nectar production and sugar ratios [sucrose/(glucose + fructose)], and flower visitors for nine ...

and has up to four leaves, each of which may be 1 m in length and width. It is considered a weed by Monte- verde residents, for ...

Figure 8.8. Heating of Xanthosoma robustum inflorescences (solid circles); open circles show an inflorescence on its second even ...

reflect the extravagance with which Xanthosoma robustum advertises its inflorescences; that extrava- gance reflects the importan ...

wasp numbers by producing two distinct sets of fe- male florets: short-styled ones, in which the ovaries are accessible to the o ...

no obligate agaonine wasps associated with it (Ramirez 1970). Differences also exist among populations of in- dividual species; ...

Figure 8.10. Blakea gracilis. Photograph by C. Lumer. Figure 8.11. Topobea durandiana. Photograph by C. Lumer. areas, on fallen ...

Figure 8.12. Results of testing for self-compatibility and autogamy in Blakea and Jopobea spp. larger bees (Xylocopa frontalis; ...