Natural Regeneration

Scaling Up Farmer-Managed Natural Regeneration in Africa to Restore Degraded Landscapes

Background

Protecting and managing natural regeneration of woody species on‐farm  can help create new agroforestry parklands as well as promote natural regeneration off‐farm. Increasing the number of trees on farms as well as off‐farm is important in the context of accelerated climate change and ambitious pledges to restore degraded forestland. This study examines large-scale agroforestry parklands in three African countries.

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Globalization and Forest Resurgence: Changes in Forest Cover in El Salvador

Background

The authors study certain globalization impacts in land-use change in El Salvador. The legacy of war, remittances and international migration are among other factors that have allowed tree resurgence even in highly urban populated areas.  This study tracks the different trajectories of forest recovery by analysing remote-sensing satellite images from 1970's to the early 2000's.

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Aspects de la régénération naturelle en forêt dense de Côte-d’Ivoire (Aspects of natural forest regeneration in Ivory Coast)

The author describes forest dynamics in the Ivory Coast. He discusses primarily forest regeneration as a process disturbed by perturbations that leave a gap in the canopy and notes that leading up to these disturbances, forested areas build up seed banks. The author concludes that characteristics of the disturbance determine future forest vegetation.

 

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Successions Post-Culturales en Foret Tropicale: Essai de Synthèse Bibliographique (Secondary succession in tropical forests: essay and bibliographic synthesis)

This article discusses four models of secondary succession (facilitation, inhibition, tolerance, and random). The authors examine the differences between the fundamental niche and the realized niche and they note that very little has been studied about ecosystem function of tropical forests.

 

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Changing gears during succession: shifting functional strategies in young tropical secondary forests

Background

Adaptations toresource availability strongly shape patterns of community composition along successional gradients in environmental conditions. This study examines the extent to which variation in functional composition explains shifts in trait-based functional strategies in young tropical secondary forests during the most dynamic stage of succession (0–20 years).

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Rôle des perturbations actuelles et passées dans la dynamique et mosaique forestière (Role of current and past disturbances on dynamics and forest mosaics)

The author broadly discusses community and population dynamics in tropical forests, including mortality and dispersal. He highlights the role of animal dispersal and disturbances in modifying stand heterogeneity.

 

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Ouragans et diversite biologique dans les forets tropicales. L’exemple de la Guadeloupe (Hurricanes and diversity in tropical forests: the example of Guadeloupe).

The authors examined the relationship between hurricane disturbances and biodiversity and found that diversity of forests increased their resistance to hurricane disturbances. They concluded that recurrence of strong hurricanes could lead to extirpation of rare or vulnerable non-pioneer species.

 

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Satellite Data-Based Phenological Evaluation of the Nationwide Reforestation of South Korea

Background

South Korea's reforestation efforts since the 1950s have been evaluated for changes in biomass, area and growing stock; but little has been done to study the phenology changes (seasonal changes) and photosynthetic activity, which will help in the preparation of new forest management in light of climate change.

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Bird Perches Increase Forest Seeds on Puerto Rican Landslides

Background

Forest regeneration is typically difficult after landslides due to loss of above- and below-ground vegetative structure, the soil seed bank, soil nutrients, and soil structure. Landslides are a common occurrence in Puerto Rico due to its steep topography and heavy rainfall periods and often transform into grass- or fern-dominated terrain. Insufficient seed rain is thought to be one contributing factor.

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Effects of Invasive Alien Plants on Fire Regimes

Background

This article considers how  invasive plant species affect native ecosystems by altering fuel properties, fire behavior and fire regime characteristics. These may impact the ability of a site to restore to its previous state.

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