Latin America and Caribbean
National parks and conservation concessions: a comparison between mammal populations in two types of tropical protected areas in Ucayali, PeruBackgroundPeru holds the second largest portion of the Amazon rainforest and is threatened by illegal logging and crop cultivation, as well as mining and other activities. Protected areas are one method of forest conservation, which can exist as conservation concessions. These areas of land granted for protection and rehabilitation area vital to maintaining the health and distribution of the forest. Biodiversity is understudied in many of these regions, especially about terrestrial mammals. Open access copy available |
Tree Canopy Management Affects Dynamics of Herbaceous Vegetation and Soil Moisture in Silvopasture Systems Using Arboreal LegumesBackgroundIt is important to understand how herbaceous and arboreal species interact with each other, specifically how shade effects understory plants. Silvopasture functions best when both strata of the forest are thriving. Silvopasture is impacted by species chosen, spacing of tree plantings, and other management practices. Tree legume species such as Gliricidia sepium and Mimosa caesalpiniifolia hold a potential value for commercial use while also fixing soil nitrogen in the soil. Open access copy available |
Edaphic factors and initial conditions influence successional trajectories of early regenerating tropical dry forestsBackgroundEdaphic factors include soil characteristics and topography of a landscape. These factors are thought to have strong impacts on forest communities and can predict the trajectory of forest regeneration. Differing soil conditions and slopes result in varying species assemblages, growth rates, and overall tree cover. Open access copy available |
Seed removal, seed dispersers, and the allocation of tissues in Myrtaceae seedsBackgroundPlants allocate resources to protective seed tissues in order to avoid seed death and ensure successful reproduction. Myrtaceae is an abundant plant family in the Brazilian Atlantic forest with many species producing fleshy fruits that are attractive to birds, rodents, and other mammals. Myrtaceae species may adapt seed characteristics to avoid predation. Available with subscription or purchase |
Safeguarding sloths and anteaters in the future: Priority areas for conservation under climate changeBackgroundSloths and anteaters come from the order Pilosa which has very little species richness and a high rate of species loss in recent years, making this order highly vulnerable to extinction. This order is distributed endemically in the Neotropics. Conservation concerns are high due to the high levels of habitat fragmentation and loss in Neotropical landscapes and conservation areas need to be prioritized to ensure Pilosa species survival. Available with subscription or purchase |
Forest structure predicts species richness and functional diversity in Amazonian mixed-species bird flocksBackgroundSecondary forests between forest fragments are valuable sources of biodiversity during the regeneration process. In the Brazilian Amazon, understory birds are often an indicator of forest regeneration and overall health. Functional diversity is an important component of ecosystem health and services, yet little is known about the role it plays in the return of mixed-species bird flocks. Open access copy available |
Forest ecosystem services at landscape level – Why forest transition matters?BackgroundForest transition theory describes patterns of forest decline and recovery. This theory explains what services change as forested landscapes shift in the three stages of recovery. This model covers both forest-type gradients (diversity and usage) and landscape gradients (connectivity and coverage). It is not yet understood how these forest transition stages influence the quantity and quality of ecosystem services. Open access copy available |
Out of steady state: Tracking canopy gap dynamics across Brazilian AmazonBackgroundCanopy gaps are a regular characteristic of natural or anthropogenic disturbance in forested landscapes. Gap-creating disturbances often result in a forest mosaic with patches of varying successional stages. Many species in tropical forests depend on these canopy gaps for regeneration. Field monitoring of canopy gaps can be difficult due to time constraints and plot size, making tropical gap dynamics an understudied topic. Available with subscription or purchase |
Selecting tree species to restore forest under climate change conditions: Complementing species distribution models with field experimentationBackgroundClimate-based species distribution models are used as a strategy to decide on optimal tree species for forest restoration projects. The criteria in these models is based on species performance in local climates. The limitation of species distribution models is that they do not include recruitment. Including the species successful reproduction, recruitment and growth at an early stage is vital for successful reforestation efforts. In addition, the models are not calibrated to take into account future climatic conditions, making it difficult to plan long-term restoration projects. Available with subscription or purchase |
Trade-offs at applying tree nucleation to restore degraded high Andean forests in ColombiaBackgroundThis article recognizes applied nucleation as a forest restoration strategy in many low to mid altitude forests and aims to compare applied nucleation to passive regeneration at high altitude forests. Applied nucleation is successful at accelerating the speed of forest regeneration, improving soil conditions, and shading out invasive species in many low-mid altitude forests of the neotropics. There are gaps in the literature about the performance of applied nucleation in other tropical regions as well as high attitude tropical forests. Available with subscription or purchase |
