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Pelissari AL, F Filho A, Ebling AA, Sanquetta CR, Cysneiros VC, Corte APD. Spatial variability of tree species diversity in a mixed tropical forest in Southern Brazil. AN ACAD BRAS CIENC 2018; 90:2491-2500. [PMID: 30133578 DOI: 10.1590/0001-3765201820170826] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Accepted: 01/31/2018] [Indexed: 11/22/2022] Open
Abstract
Floristic surveys and diversity indices are often applied to measure tree species diversity in mixed tropical forest remnants. However, these analyses are frequently limited to the overall results and do not allow to evaluate the spatial variability distributions of tree diversity, leading to develop additional tools. This study aimed to estimate the spatial variability of tree diversity and map their spatial patterns in a Brazilian mixed tropical forest conservation area. We used indices to measure the tree species diversity (dbh ≥ 10 cm) in 400 sampling units (25 m x 25 m) from a continuous forest inventory. Semivariograms were fitted to estimate spatial dependences and punctual kriging was applied to compose maps. Mean diversity values were constant in the continuous inventories, indicating a forest remnant in an advanced stage of ecological succession. On the other hand, tree diversity presented spatial patterns identified by geostatistics, in which the dynamics were composed of heterogeneous mosaics spatially influenced by tree species with different ecological features and densities, gap dynamics, advancement of forest succession, mortality, and Araucaria angustilofia's cohorts.
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Affiliation(s)
- Allan L Pelissari
- Departamento de Ciências Florestais, Universidade Federal do Paraná / UFPR, Av. Prof. Lothário Meissner, 632, 80210-170 Curitiba, PR, Brazil
| | - Afonso F Filho
- Departamento de Engenharia Florestal, Universidade Estadual do Centro-Oeste / UNICENTRO, PR 153, Km 7, 84500-000 Irati, PR, Brazil
| | - Angelo A Ebling
- Departamento de Engenharia Florestal, Universidade Federal Rural da Amazônia / UFRA, PA 275, Km 13, 68515-970 Parauapebas, PA, Brazil
| | - Carlos R Sanquetta
- Departamento de Ciências Florestais, Universidade Federal do Paraná / UFPR, Av. Prof. Lothário Meissner, 632, 80210-170 Curitiba, PR, Brazil
| | - Vinicius C Cysneiros
- Programa de Pós-Graduação em Engenharia Florestal, Universidade Federal do Paraná / UFPR, Av. Prof. Lothário Meissner, 632, 80210-170 Curitiba, PR, Brazil
| | - Ana Paula D Corte
- Departamento de Ciências Florestais, Universidade Federal do Paraná / UFPR, Av. Prof. Lothário Meissner, 632, 80210-170 Curitiba, PR, Brazil
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