Tropical Wet Forest
Nitrogen-fixing trees inhibit growth of regenerating Costa Rican rainforestsBACKGROUNDNitrogen fixing plants are the primary source of nitrogen in forests, and it is expected that more nitrogen fixers will bring in faster growth. Hence this study conducted, in a humid tropical rainforest North- East Costa Rica, challenged this notion. The area of study had similar dominant species, with P. macroloba being the most dominant Nitrogen fixer. Open access copy available |
Impact of Forest Management on Insect Abundance and Damage in a Lowland Tropical Forest in Southern CameroonBackgroundA burgeoning timber industry in Cameroon, which became the fifth largest producer of timber in the world in the 1990’s, led to unsustainably high deforestation rates and high demand for forest regeneration interventions. Research in the Mbalmayo Forest Reserve in southern Cameroon has compared different silvicultural techniques for forest regeneration including complete and partial clearance methods. Available with subscription or purchase |
Leaf litter arthropod responses to tropical forest restorationBackgroundSoil and litter arthropods play critical roles in tropical ecosystem function including driving organic matter decomposition and nitrogen mineralization. With the increasing need for forest restoration projects, it is important to know how these arthropod communities respond to a variety of restoration strategies and techniques in order to maintain healthy ecosystem function. This study was conducted in a mixed-use agricultural landscape in southern Costa Rica, in an effort to contribute to local restoration research efforts. Open access copy available |
Insects and Other Animals in Tropical ForestsBackgroundAvailable with subscription or purchase |
Pest Management in Tropical ForestryBackgroundThis chapter of the Tropical Forestry Handbook introduces common pests, diseases, and disorders known to afflict tropical tree species. It describes methods of transmission, common symptoms, and provides visual guides on disease identification including infection manifestations in different parts of the tree. The chapter concludes with a discussion on disease management strategies including avoidance, control, and elimination highlighting the environmental factors that play into these strategies. Available with subscription or purchase |
Anthropogenic disturbance in tropical forests can double biodiversity loss from deforestationBackgroundThe authors examined the impacts of anthropogenic disturbances within a forest on the ability of the forest to conserve biodiversity and provide ecosytem services. The research used large data sets of plants, birds, and dung beetles and used them as indicators of biodiversity change in the forest. Open access copy available |
Factors Affecting Mortality and Resistance to Damage Following Hurricanes in a Rehabilitated Subtropical Moist ForestBackgroundThis study was conducted in the Luquillo Experimental Forest (LEF), which was previously abandoned pastureland reforested through mixed planting and natural regeneration. Available with subscription or purchase |
Asymmetric density dependence shapes species abundances in a tropical tree communityBackgroundThis study examined the question: why are some species common in tropical rainforests while others are rare? Goals & MethodsThe research, which used a computer modeling approach to analyze data from 20,000 1-meter squared plots, examined the degree to which being close to another individual of the same species affected the studied individual's overall abundance. Available with subscription or purchase |
Bioremediation of a crude-oil polluted agricultural-soil at Port Harcourt, NigeriaBackgroundSince more than 98% of Nigeria’s current economic support is crude oil, and oil spills are in inevitable and frequent, six treatment sample-cell were tested on the soils of the Niger Delta of Nigeria for crude oil bioremediation. Oil spills cause nitrogen levels to decrease, while increasing carbon content. A decrease in nitrogen and the toxicity of crude oil reduces the growth of heterotrophic bacteria, which utilize petroleum carbon for cell synthesis. Available with subscription or purchase |
Business models for sustainable investments in the context of tropical forest restorationBackgroundThis paper outlines the context and approaches of effective business models for sustainable investments in Tropical Forests. Triple bottom line business opportunities are defined and identified through a review of literature and analysis of three case studies (InIkea, FCFR Project, and Sustain Project). The conceptual frameworks surrounding sustainable business models are examined. Challenges and opportunities into the future are also explored. Open access copy available |
