Pathogens, insects and diseases

Manejo integrado de insectos herbívoros en sistemas ganaderos sostenibles

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Antecedentes

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Distribution and genetic diversity of five invasive pests of Eucalyptus in sub-Saharan Africa

BACKGROUND

Plantation forestry in Sub- Saharan Africa has been characterized by an introduction of several Eucalyptus species because of their socio- economic benefits. However, these Eucalyptus trees have been affected by non- native foliage feeding insect pests, which have been accidentally introduced, resulting in stunted growth and in some cases mortality. The rate of introduction of non-native eucalypt-feeding insects globally has increased nearly five-fold between the 1980s and 2010s.

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Insectos vs suelo: la importancia de elegir indicadores para el monitoreo de la restauración ecológica.

 

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Antecedentes

Amenazados por la degradación de suelos y la sobreexplotación de recursos naturales, los bosques andinos han sido objetos de mutiples proyectos e iniciativas de restauración forestal. Para ser exitosos, los proyectos de restauración deben incluir un plan de monitoreo comprensivo que evalúe indicadores relevantes y sensibles a cambios en el ecosistema. La selección de estos indicadores de monitoreo debe ser juiciosa y hecha en función a los objetivos de la restauración.

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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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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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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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The Use of Ants and Other Soil and Litter Arthropods as Bio-Indicators of the Impacts of Rainforest Clearing and Subsequent Land Use

Background

This study evaluates the impacts of rainforest clearing on soil and litter arthropods with a particular focus on ant species.

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Responses of Transplanted Native Tree Species to Invasive Alien Grass Removals in an Abandoned Cattle Pasture in the Lacandon Region, Mexico

background

This study measures the response of 16 native tree species to manual invasive grass removal treatments, for cost-effective regeneration of tropical forest on abandoned cattle pasture in the Lacandon region of Chiapas, southeast Mexico.

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