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Beyond Carbon: The Contributions of South American Tropical Humid and Subhumid Forests to Ecosystem Services

2022; Wiley; Volume: 60; Issue: 4 Linguagem: Inglês

10.1029/2021rg000766

8755-1209

Laura S. Borma, Marcos Heil Costa, Humberto Ribeiro da Rocha, Julia Arieira, Nathália Nascimento, Carolina Jaramillo-Giraldo, Geanderson Ambrósio, Rayonil Gomes Carneiro, Madelaine Venzon, Ailton Fabrício-Neto, Richard van der Hoff, Beatriz Fátima Alves de Oliveira, Raoni Rajão, Carlos A. Nobre,

Ecology and Vegetation Dynamics Studies

Abstract Tropical forests are recognized for their role in providing diverse ecosystem services (ESs), with carbon uptake the best recognized. The capacity of tropical forests to provide ESs is strongly linked to their enormous biodiversity. However, causal relationships between biodiversity and ESs are poorly understood. This may be because biodiversity is often translated into species richness. Here, we argue that focusing on multiple attributes of biodiversity—structure, composition, and function—will make relationships between biodiversity and ESs clearer. In this review, we discuss the ecological processes behind ESs from tropical humid and subhumid forests of South America. Our main goal is to understand the links between the ESs and those three biodiversity attributes. While supporting and regulating services relate more closely to forest structure and function, provisioning services relate more closely to forest composition and function, and cultural services are more related to structure and composition attributes. In this sense, ESs from subhumid forests (savannas) differ from those provided by the Amazon Forest, although both ecosystems are recognized as harboring tremendous biodiversity. Given this, if anthropogenic drivers of change promote a shift in the Amazon Forest toward savanna—the savannization hypothesis—the types of services provided will change, especially climate regulating services. This review emphasizes the importance of deeply understanding ecosystem structure, composition, and function to better understand the services ecosystems provide. Understanding that anthropogenic impacts on biodiversity occur through these three main attributes, it becomes easier to anticipate how humans will impact ESs.