A importância das áreas protegidas na preservação da vegetação rupestre de “Canga”, Carajás, na Amazônia Brasileira

Leandro Valle Ferreira; Rafael de Paiva Salomão; Denise de Andrade Cunha; Darley Calderaro Leal Matos; Pia Parolin; Mário Augusto Gonçalves Jardim

doi:10.53661/1806-9088202650263943

The role of protected areas in preserving Carajás rupestrian vegetation "Canga" in the Brazilian Amazon

Authors

Leandro Valle Ferreira Museu Paraense Emilio Goeldi, Coordenação de Botânica, Belém, Pará, Brasil https://orcid.org/0000-0001-9674-0238
Rafael de Paiva Salomão Museu Paraense Emilio Goeldi, Programa de Pós-Graduação em Botânica Tropical, Belém, Pará, Brasil https://orcid.org/0000-0003-0947-0132
Denise de Andrade Cunha Instituto Federal de Educação, Ciência e Tecnologia do Estado do Pará, Diretoria de Pesquisa, Castanhal, Pará, Brasil https://orcid.org/0009-0001-5741-4891
Darley Calderaro Leal Matos Instituto Federal de Educação, Ciência e Tecnologia do Amapá, Laranjal do Jari, Amapá, Brasil https://orcid.org/0000-0003-0888-8246
Pia Parolin Max Planck Institute of Animal Behavior, Radolfzel, Baden-Württemberg, Germany https://orcid.org/0000-0003-3947-7132
Mário Augusto Gonçalves Jardim Museu Paraense Emilio Goeldi, Coordenação de Botânica, Belém, Pará, Brasil https://orcid.org/0000-0003-1575-1248

DOI:

https://doi.org/10.53661/1806-9088202650263943

Keywords:

Endemic species, Floristic composition, Ironstone outcrops

Abstract

The rupestrian vegetation on rocky hematite outcrops in the Brazilian Amazon has the smallest geographic distribution and highest endemism in the region. This study aimed to characterize the floristic composition and vegetation structure of these formations, locally known as Canga. The floristic inventory included both natural regeneration and the tree and shrub layers. Species richness and individual abundance were significantly lower in the rupestrian fields outside protected areas. Moreover, the dominant species differed markedly between protected and unprotected sites. Species typical of well-preserved habitats within protected areas were either absent or had drastically reduced abundance outside. Plant composition was entirely different between the two settings. The observed reduction in species richness, abundance, and changes in floristic composition is likely associated with human-induced disturbances.

Keywords: Endemic species; Floristic composition; Ironstone outcrops

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Published

2026-04-22

How to Cite

Ferreira, L. V., Salomão, R. de P., Cunha, D. de A., Matos, D. C. L., Parolin, P., & Jardim, M. A. G. (2026). The role of protected areas in preserving Carajás rupestrian vegetation "Canga" in the Brazilian Amazon. Revista Árvore, 50(1). https://doi.org/10.53661/1806-9088202650263943

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Issue

Revista Árvore, Viçosa-MG, v.50, 2026

Section

Nature Conservation

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All authors agreed to submit the work to Revista Árvore and granted the exclusive license to publish the article. The authors affirm that it is an original work and has not been previously published elsewhere. The scientific content and opinions expressed in the article are the sole responsibility of the authors and reflect their opinions, not necessarily representing the opinions of the editorial board of Revista Árvore or of the Society of Forest Investigations (SIF).