${session.getAttribute("locale")} 5 Historical patterns of natural forest management in Costa Rica: The good, the bad and the Ugly Wed 20 Mar 2019 14:18:46 AEST ]]> Land cover dynamics following a deforestation ban in northern Costa Rica Thu 14 Feb 2019 09:50:08 AEST ]]> Forest structure, canopy architecture, and light transmittance in tropical wet forests Thu 14 Feb 2019 09:49:43 AEST ]]> Demographic drivers of successional changes in phylogenetic structure across life-history stages in plant communities Thu 14 Feb 2019 09:49:38 AEST ]]> Multigenerational genetic analysis of tropical secondary regeneration in a canopy palm Thu 14 Feb 2019 09:49:35 AEST ]]> Rain forest nutrient cycling and productivity in response to large-scale litter manipulation Thu 14 Feb 2019 09:49:32 AEST ]]> Ethnobotany of woody species in second-growth, old-growth, and selectively logged forests of northeastern Costa Rica 1 m high, <5 cm dbh), and seedlings (>20 cm high, <1 m high). Our study included five second-growth stands, three old-growth stands, and two selectively logged stands. Of the 459 woody species surveyed, 70% of the species and 86% of the total number of individuals had at least one use. Overall, species richness was highest for medicinal species (167 species). Absolute and relative abundance of medicinal and timber trees was significantly higher in second-growth stands than in old-growth and selectively logged stands. For 8 of the 15 use categories examined statistically, stem density showed no significant differences across forest types for any stem size class. Young, tropical, second-growth forests and selectively logged forests have high utilitarian as well as conservation value and will likely become important sources of forest products. The success of secondary forest regeneration, however, depends critically upon conservation of genetiCally diverse source populations in forest fragments and protected old-growth stands.]]> Thu 14 Feb 2019 09:48:17 AEST ]]> Effects of leaf and ramet removal on growth and reproduction of Geonoma congesta, a clonal understorey palm Thu 14 Feb 2019 09:48:09 AEST ]]> Light-dependent seedling survival and growth of four tree species in Costa Rican second-growth rain forests Thu 14 Feb 2019 09:48:06 AEST ]]> Community and phylogenetic structure of reproductive traits of woody species in wet tropical forests Thu 14 Feb 2019 09:47:55 AEST ]]> Species richness, spatial variation, and abundance of the soil seed bank of a secondary tropical rain forest Thu 14 Feb 2019 09:46:49 AEST ]]> Patterns of growth and reproduction of Geonoma congesta, a clustered understory palm 20 ramets. Within a clone, new ramets are produced sporadically, 1-4 ramets at a time. Ramet mortality is often associated with physical damage from falling trees, lianas, and branches. Less than 30% of the ramets with stems were erect. Ramets produced on average 10.1 new leaves and abscised 9.7 leaves in three years. Rates of leaf production and leaf abscission did not vary significantly among ramet stage classes. Stem elongation was greatest in shorter, younger ramets. In taller, older ramets, leaf size and number decreased over the study period. Reproductive clones comprised 64% of the clones in 1986, whereas only 24% of individual ramets reproduced. Ramets thast reproduced every year had significantly larger leaves and substantially greater crown leaf area than the other reproductive classes. Stage clases with the greatest frequency of reproduction exhibited the greatest decrease in both crown size and leaf size. Indidivual ramets live an average of 60-70 yr; clones may persist for ≥100 yr. The growth form of G. congesta ensures that clones persist despite a high incidence of ramet mortality and damage. At least one ramet within a clone is likely to reproduce every year, although individual ramets may not reproduce every year. Patterns of growth and reproduction are consistent with the hypothesis that the growth of young, deeply shaded sprouts is supplemented by production from older, taller stems. -from Author]]> Thu 14 Feb 2019 09:46:42 AEST ]]> Mapping species composition of forests and tree plantations in northeastern Costa Rica with an integration of hyperspectral and multitemporal landsat imagery Thu 14 Feb 2019 09:45:59 AEST ]]> Estimation of tropical forest structural characteristics, using large-footprint lidar Thu 14 Feb 2019 09:45:55 AEST ]]> Impact of spatial variability of tropical forest structure on radar estimation of aboveground biomass Thu 14 Feb 2019 09:45:51 AEST ]]> Using Lidar and Radar measurements to constrain predictions of forest ecosystem structure and function Thu 14 Feb 2019 09:44:34 AEST ]]> Targeted reforestation could reverse declines in connectivity for understory birds in a tropical habitat corridor Thu 14 Feb 2019 09:44:31 AEST ]]> Demographic drivers of tree biomass change during secondary succession in northeastern Costa Rica Thu 14 Feb 2019 09:44:28 AEST ]]> Physiological ecology of plants Thu 14 Feb 2019 09:44:13 AEST ]]> Life History Traits of Lianas During Tropical Forest Succession Thu 14 Feb 2019 09:44:03 AEST ]]> Small Tent-Roosting Bats Promote Dispersal of Large-Seeded Plants in a Neotropical Forest 8 mm beneath bat roosts, but a species accumulation curve suggests that this number would increase with further sampling. Samples collected beneath bat feeding roosts had, on average, 10 times more seeds and species than samples collected 5 m away from bat feeding roosts. This difference was generally smaller in small, disturbed forest patches. Species-specific abundance of seeds found beneath bat roosts was positively correlated with abundance of seedlings, suggesting that bat dispersal may influence seedling recruitment. Our study demonstrates a greater role of small frugivorous bats as dispersers of large seeds than previously thought, particularly in regions where populations of large-bodied seed dispersers have been reduced or extirpated by hunting. © 2009 The Association for Tropical Biology and Conservation.]]> Thu 14 Feb 2019 09:44:01 AEST ]]> Plant size and form in the understory palm genus Geonoma: are species variations on a theme? Thu 14 Feb 2019 09:43:31 AEST ]]>