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Biodiversity and Conservation

, Volume 24, Issue 9, pp 2305–2318 | Cite as

Microclimatic conditions at forest edges have significant impacts on vegetation structure in large Atlantic forest fragments

  • Luiz Fernando Silva Magnago
  • Mariana Ferreira Rocha
  • Leila Meyer
  • Sebastião Venâncio Martins
  • João Augusto Alves Meira-Neto
Original Paper

Abstract

Forest fragmentation creates forest edges, and the effect of those edges increases as the size of forest fragments decreases. Edge effects include changes to microclimatic conditions at the forest edge, which affect vegetation structure. No previous studies have directly tested the relationship between microclimate and vegetation structure (for instance, basal area, trees mean height, dead trees and damage trees) at the edge of forest fragments in the Atlantic Forest domain. We tested the following three hypotheses: (i) the microclimatic conditions differ between the edge and the interior of the forest, (ii) the forest structure differs between the edge and the interior of the forest and (iii) changes to microclimatic conditions at the forest edge negatively affect vegetation structure at the edges. Our results demonstrate that edge habitats are significantly more susceptible to strong winds, lower humidity and higher air temperatures than forest interiors. The microclimate may be considered the principal factor that explains the difference between the vegetation structure of the forest edge and the forest interior. Our results suggest that even large forest fragments in the Brazilian Atlantic Forest may be impacted by negative edge effects.

Keywords

Edge effects Forest fragmentation Basal area Wind disturbance Dead trees Tableland forest 

Notes

Acknowledgments

We are grateful to CAPES for a doctoral scholarship in Brazil and for an overseas doctoral scholarship (the Sandwich Program) provided to the first and second authors. We thank the Projeto Floresta-Escola, FAPEMIG and CNPQ (Grant No. 477780/2009-1) for financial support. We thank Vale Natural Reserve, especially Gilberto Terra, for logistical support. We thank Sooretama Biological Reserve for allowing us to conduct this study, and Fibria Celulose S. A. for logistical support and for access to the study areas. We also thank Fabio A. Matos, Renata Pagotto, Vinicius Guss, Stephano, Glaúcia Tolentino, Túlio, Átila, Talissa Harb and Domingos Folli, among others, for their help with field activities. JAAMN was awarded a CNPq scholarship for scientific productivity. LFSM is supported by a PNPD program of CAPES. MFR was supported by Floresta Ecolola project.

Supplementary material

10531_2015_961_MOESM1_ESM.doc (85 kb)
Supplementary material 1 (DOC 85 kb)

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Copyright information

© Springer Science+Business Media Dordrecht 2015

Authors and Affiliations

  • Luiz Fernando Silva Magnago
    • 1
    • 2
    • 3
  • Mariana Ferreira Rocha
    • 1
    • 3
  • Leila Meyer
    • 4
  • Sebastião Venâncio Martins
    • 5
  • João Augusto Alves Meira-Neto
    • 1
  1. 1.Laboratory of Ecology and Evolution of Plants - LEEPUniversidade Federal de ViçosaViçosaBrazil
  2. 2.Setor de Ecologia e Conservação, Departamento de BiologiaUniversidade Federal de LavrasLavrasBrazil
  3. 3.Centre for Tropical Environmental and Sustainability Science (TESS) and School of Marine and Tropical BiologyJames Cook UniversityCairnsAustralia
  4. 4.Departamento de BotânicaUniversidade Federal de Minas GeraisBelo HorizonteBrazil
  5. 5.Departamento de Engenharia Florestal da Universidade Federal de ViçosaViçosaBrazil

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