Biodiversity
The Restoration of Degraded Lands by Local Communities and Indigenous PeoplesBackgroundLand degradation is a global ecological crisis that threatens biodiversity, ecosystem integrity, and human well-being. Over 75% of land worldwide is affected, impacting the livelihoods of 3.2 billion people. Causes include deforestation, desertification, unsustainable agriculture, and climate change. In response, the United Nations launched the “Decade on Ecosystem Restoration” (2021–2030) to promote land restoration and achieve Land Degradation Neutrality. Indigenous peoples and local communities (IPLCs) manage a significant portion of intact ecosystems and possess deep ecological knowledge, making them vital actors in restoration efforts. Available with subscription or purchase |
Traditional medicinal knowledge of tropical trees and its value for restoration of tropical forestsBackgroundTropical regions host the planet's greatest biodiversity, much of which is maintained by Indigenous and local communities through traditional ecological knowledge (TEK) and traditional medicinal knowledge (TMK). In Mexico’s Tabasco region, deforestation and habitat fragmentation have severely degraded tropical forests, threatening both biodiversity and cultural practices. TMK, which supplies up to 80% of primary health care globally, is increasingly recognized for its potential to inform conservation and restoration. Despite this, TMK is being lost due to modernization, migration, and the replacement of traditional remedies with commercial pharmaceuticals. Open access copy available |
Indigenous exploitation and management of tropical forest resources: an evolutionary continuum in forest-people interactionsBackgroundAvailable with subscription or purchase |
Hope for Threatened Tropical Biodiversity: Lessons from the PhilippinesBackgroundOpen access copy available |
Basin-Wide Effects of Game Harvest on Vertebrate Population Densities in Amazonian Forests: Implications for Animal-Mediated Seed DispersalBackgroundTropical forest ecosystems rely heavily on animal-plant interactions, especially seed dispersal by vertebrates. In the Amazon, widespread hunting significantly reduces populations of many vertebrate species, particularly large-bodied frugivores that play a key role in dispersing seeds of large-seeded plants. Although some species show greater sensitivity to hunting than others, the overall impact of hunting across the Amazon basin remains poorly quantified. This study aims to understand how subsistence hunting affects vertebrate populations and, in turn, the ecological services they provide—most notably seed dispersal. Open access copy available |
Carbon Costs and Bushmeat Benefits of Hunting in Tropical ForestsBackgroundOverhunting in tropical forests depletes frugivorous animals that play a vital role in seed dispersal. This loss alters tree species composition and reduces forest carbon storage. While bushmeat hunting remains an important source of protein and income for local communities, its long-term impact on carbon stocks remains poorly understood. This study investigates the trade-offs between the economic benefits of bushmeat hunting and the potential carbon costs of defaunation-driven biomass loss. Understanding these dynamics is essential for integrating hunting management into climate mitigation strategies such as REDD+. Open access copy available |
Not Seeing the Forest for the Trees: The Oversight of Defaunation in REDD+ and Global Forest GovernanceBackgroundREDD+ (Reducing Emissions from Deforestation and Forest Degradation) aims to mitigate climate change by preserving forest carbon stocks. Although REDD+ focuses mainly on reducing deforestation, it largely ignores defaunation—the loss of forest wildlife caused by unsustainable hunting. Many tropical forests suffer from "empty forest syndrome," where hunting removes large frugivores and seed dispersers, disrupting seed dispersal and carbon sequestration. This study highlights how REDD+ policies overlook the ecological role of forest fauna and argues that neglecting defaunation threatens the long-term success of forest conservation. Open access copy available |
Quantifying the Impacts of Defaunation on Natural Forest Regeneration in a Global Meta-AnalysisBackgroundIntact forests provide critical ecosystem services like carbon storage and climate regulation, relying heavily on interactions between woody vegetation and animal species. However, defaunation alters these interactions on a global scale. While previous studies explore defaunation’s effects on individual ecosystems, no comprehensive global analysis quantifies its impact on natural forest regeneration. This study conducts a meta-analysis to assess how vertebrate loss influences forest regeneration across multiple regions and ecosystems, identifying key taxonomic groups and ecological processes most affected by defaunation. Available with subscription or purchase |
Synergistic Effects of Seed Disperser and Predator Loss on Recruitment Success and Long-Term Consequences for Carbon Stocks in Tropical RainforestsBackgroundDefaunation—the loss of animal species due to hunting, habitat destruction, and other human activities—affects tropical forests profoundly. Large frugivores play a key role in seed dispersal, while seed predators influence recruitment success and plant population dynamics. Previous studies focus mainly on how defaunation impacts seed dispersal but often overlook the role of seed predators and potential compensatory ecosystem effects. This study examines how losing both seed dispersers and seed predators simultaneously affects tree recruitment and long-term carbon storage in tropical forests. Open access copy available |
The Need for Carbon Finance Schemes to Tackle Overexploitation of Tropical Forest WildlifeBackgroundOpen access copy available |
