However, in 43 % of the published tests for structural host specificity (Table 1) only relative frequencies of tree species but not tree size were included (some of these studies performed separate analyses to test for a correlation between size and the respective response variable).
Also in the case of Petén, self-reporting of forestry practice was not at all sufficient to establish differences among the three groups: researchers measured plot sizes, species diversity in plots, number, coverage and frequency of trees, soil chemical composition, dimension and dispersion of fires, and so on.
The distribution of breeding values for susceptibility thus provides a presentation of the expected frequency of trees with high and low ability to produce healthy offspring.
Parametric analysis indicated that vibration-absorbing effects are more susceptible to the variation of natural frequency of tree cover than its damping ratio.
The acceleration curves in both experimental and simulation conditions and the distribution nephograms indicated that the greater frequency of tree shaking generates greater acceleration.
In particular, contention has increased around the international corridor that follows the river from Matam to areas south of Kidira as it has become more heavily travelled and the frequency of tree coppicing for browse has increased.
Here we test the hypothesis that the habitat fragmentation changes the frequency of tree species and individuals within categories of reproductive traits and consequently reduces the functional diversity of tree assemblages in a fragmented landscape of the Brazilian Atlantic forest.
Here we assume that the lack of significant relationships between soil type, plot location and plot floristic similarity discard soil and plot location as variables driving the frequency of tree reproductive traits in the landscape.
We used published information and field observations to obtain the frequency of tree species and individuals within 50 categories of reproductive traits (distributed in four major classes: pollination systems, floral biology, sexual systems, and reproductive systems) in 10 fragments and 10 tracts of forest interior (control plots).
To calculate the frequency of tree visits, we divided the number of trees of each species that the chimpanzees visited by the number of trees for all considered species that were visited during the period.
