Restoration and Management Strategies

Growth of native tree species planted in montane reforestation projects in the Colombian and Ecuadorian Andes differs among site and species

BACKGROUND

Tropical Andes in Columbia and Ecuador have been affected by forest clearance and degradation for several centuries. Agriculture has been the primary driver of land use change as well as mining to a lesser extent. To restore the degraded sites, native species have been used in various projects, however with little information on growth performance of the planted tree species in relation to site and soil nutrient status. A greater part of the northern Andes has volcanic ash derived soils.

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Pest management through tropical tree conservation

Background

Deforestation and crop monocultures in Veracruz, Mexico are leading to the disappearance of indigenous trees and the animal species that depend on them. This is particularly troubling to local agricultural workers who benefit from species like hymenopteran parasitoids that attack pest fruit flies. This research evaluates the relationship between hymenopteran parasitoids, pest fruit flies and their fruit hosts and proposes potential strategies for conservation and pest management.

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Climate Change and Variability in the Mixed Crop/Livestock Production Systems of Central Ethiopian Highland

BACKGROUND

Using a 60-year weather data, this chapter establishes the realities of climate change impacts in the Central Ethiopian Highland. It also explores the adaptive responses of teff and wheat, the two major food crops in the said locality. With a population of 100 million (as of 2018), Ethiopia faces increased levels of food insecurity. The study measured farmers’ perception of climate change and more importantly, their adaptation measures, and proposes four mitigation options for Ethiopia to cope with climate change related shocks exacerbated by population pressure.

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Impact of Forest Management on Insect Abundance and Damage in a Lowland Tropical Forest in Southern Cameroon

Background

A 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.

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Leaf litter arthropod responses to tropical forest restoration

Background

Soil 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.

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Insects and Other Animals in Tropical Forests

Background

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Fuelwood collection and its impacts on a protected tropical mountain forest in Uganda.

Background

This study examined the patterns, effects and potential management of fuelwood extraction on the forest of Mt Elgon, located in the Eastern part of Uganda, Sub- Saharan Africa. Fuelwood is the main source of energy, mainly collected from the forest. 98% of the households use fuelwood and charcoal for cooking and heating. This is a protected area with a history of conflict between surrounding populations and conservation actors. No other forest remains in its direct vicinity.

Research goals and Methods

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Pest Management in Tropical Forestry

Background

This 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.

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Applied nucleation facilitates tropical forest recovery: Lessons learned from a 15‐year study

Background

This study examines the technique of applied nucleation, which is based on the planting of tree islands, as a means of cost-effective assisted natural regeneration. 

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Restoring Forests For Communities, Biodiversity, and Ecosystem Services

Background

This publication summarizes the proceedings of a 2011 conference held in Bogor, Indonesia titled "Restoring Forests For Communities, Biodiversity, and Ecosystem Services". The aim of the conference was to provide a space in which forest restoration approaches used in Indonesia and elsewhere in Southeast Asia were shared and discussed. The report includes summaries of the opening and closing remarks along with the conference's seven presentations. 

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