Structural and Environmental Variability From the Edge to the Interior of an Atlantic Forest Remnant in Brazil

Dias, P. da Silva; Gomes, Lhoraynne Pereira; Callegaro, RM; Carvalho, F.M. Sampaio de; Dias, Henrique Machado

doi:10.26525/jtfs2021.33.3.308

Cited by 2 publications

(1 citation statement)

References 27 publications

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“…One of the consequences of forest fragmentation is the loss of genetic diversity, caused by the reduction of natural ecosystem areas [6,7]. In addition, it increases the risks of inbreeding and favors the establishment of invasive species [8].…”

Section: Introductionmentioning

confidence: 99%

Delimitation of Ecological Corridor Using Technological Tools

Mardeni¹,

Dias²,

Santos³

et al. 2023

Preprint

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Ecological corridors function as a viable way to mitigate the environmental impact arising from forest fragmentation by interconnecting forest fragments through various techniques. In this context, the objective of this study is to propose a route for the implementation of an ecological corridor in the Itapemirim river watershed. The specific objectives were: (i) to delimit the permanent preservation areas (APP) of the Itapemirim river watershed and compare land use and land cover in the delimited areas; (ii) to calculate landscape ecology indices and select the forest fragments with the highest potential for ecological corridor implementation using Fuzzy logic; (iii) to assess costs and trace the best route for ecological corridor implementation, considering distance and physical impediments; (iv) to assess land costs and expropriation costs to delimit the ecological corridor in the study area. To map land use and land cover, the MapBiomas platform was used, based on Landsat 8 satellite images. The permanent preservation areas were delimited according to criteria established by Law No. 12.651 of May 25, 2012, which establishes parameters, definitions, and limits for APP. The characterization and structural quantification of some landscape ecology indices were performed using the QGIS 3.26 computational application, through the LecoS 3.0.1 plugin and Fragstats 4.2. The connected forest fragments were the Caparaó National Park, the Serra das Torres State Natural Monument, and the fragments selected through the application of Fuzzy logic to the landscape ecology indices. The corridor was delimited according to the lowest cost route, considering land use and land cover, APP, fragment potential, slope, and subnormal clusters. For each cost raster image, its respective statistical weights were calculated using the Analytic Hierarchy Process (AHP) hierarchical method, as well as for the analysis of priority areas for forest restoration, considering land use and land cover, APP, pedology, lithology, and biological importance. The interconnection between protected areas and fragments with the ecological corridor followed the orientation described by CONAMA nº 09/96. Based on the development of the work, the following results were identified: the highest land use and land cover class is pasture. Of the area designated for permanent preservation, 68.58% is in conflicting use with the legislation. The bare land value per hectare of the pasture class is the second highest among the bare land value per LULC values, representing 64.28% of the total. The priority area map showed that 31.86% of the area was classified as of very high or high importance and 42.97% as low or very low priority for forest restoration. Thus, it is concluded that the least cost path algorithm associated with the result generated by the multi-criteria decision method (AHP) constitutes an important tool for planning and implementing an ecological network by taking into account the primary factors for decision-making regarding the location of the best route.

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Section: Introductionmentioning

confidence: 99%

Delimitation of Ecological Corridor Using Technological Tools

Mardeni¹,

Dias²,

Santos³

et al. 2023

Preprint

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Floristic and structural variations in Lowland Atlantic Forests with different histories and their use in conservation planning

Oliveira,

Dadalto,

Dias

et al. 2024

Hoehnea

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We sought to evaluate the floristic and structural variations between three areas with distinct backgrounds in the Sooretama Biological Reserve, remnantd of Lowland Atlantic Forest in Brazil. For vegetation sampling, 30 transects were established in three different areas: post-pasture (PAS), post-fire (FIR), and preserved (PRE) remnants, totaling a sample area of 0.3ha. All individuals in the woody layer with diameter at breast height ≥ 2.5cm were sampled. Variations in floristic composition were evaluated by means of NMDS, based on the presence or absence of species. There are clear variations between the three areas evaluated, in which the PRE area presents greater species richness, floristic diversity, and basal area, with parameters similar to forests of high diversity in northern Espírito Santo and southern Bahia. The performance of inventories and monitoring of the remnants of Lowland Atlantic Forests in neglected regions are fundamental for planning conservation and enrichment measures of these vegetations

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Structural and Environmental Variability From the Edge to the Interior of an Atlantic Forest Remnant in Brazil

Cited by 2 publications

References 27 publications

Delimitation of Ecological Corridor Using Technological Tools

Delimitation of Ecological Corridor Using Technological Tools

Floristic and structural variations in Lowland Atlantic Forests with different histories and their use in conservation planning

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