Forest resource availability variable from 0 to 1 |
Forest Ratio -FR |
|
Forest cover area (FA) per total landscape area (TA) |
ArcGIS®
|
Forest Size - FS |
|
Patch forest area (Ai) weighted by coefficient of patch size (CSi), ranging from 0 to 4: 0 (≤ 0,01 ha), 1 (≤ 10 ha), 2 (10 - 50 ha), 3 (50 e 4 (≥ 100 ha), in relation to the maximum size (CSmax), adapted from Hardt et al. (2014)Hardt E, Santos RF, Pereira-Silva EFL. Evaluating the ecological effects of the social agent scenarios for a housing development in the Atlantic Forest. Ecological Indicators. 2014;36:120-130.
|
ArcGIS®
|
Forest Shape - FSh |
|
Proportion of forest core area (CAi), considering a 70 m edge width, based on data obtained by Hardt et al. (2013b)Hardt E, Pereira-Silva EFL, Santos RF, Tamashiro JY, Ragazzi S, Lins D. The influence of natural and anthropogenic landscapes on edge effects. Landscape and Urban Planning. 2013b;120:59-69. for Atlantic Forest fragments with urban boundary |
ArcGIS® V-LATE extension |
Forest Successional Stage - FSS |
|
Proportion of forest in the most advanced successional stage (FAadv), identified during the mapping based on aerial photographs differences roughness |
ArcGIS®
|
Optimal Resource Availability - ORA |
|
Forest quality, weighted by core area (CAi), size coefficient (CSi) and successional stages (CSSi = 1 for initial stage and 2 for medium/ advanced stage) in relation to the maximum potential in the total area (TA) |
ArcGIS®
|
Landscape connectivity (McGarigal and Marks, 1995) |
Euclidean Nearest Neighbor distance - ENN |
|
Measure of focal patchi isolation by the shortest straight-line distance (hij) to nearest neighboring patchj of the same type, based on patch edge-to-edge distance |
FRAGSTATS®
|
Proximity Index -PROX |
|
Sum of patch forest area (aijs) divided by the nearest edge-to-edge distance squared (hijs) between the focal patch and all patches of the corresponding patch type whose edges are within 500 m from the focal patch |
|
Trends to forest fragmentation |
Frequency/Edge Segments Density - ESD |
|
Number of boundary segments (sik) between forest patchi and human-related neighboring patchk (Zeng and Wu, 2005Zeng H, Wu XB. Utilities of edge-based metrics for studying landscape fragmentation. Computers, Environment and Urban Systems. 2005;29:159-78.), calculated by the sum for boundary type |
ArcGIS®
|
Length/Edge Density - ED |
|
Cumulative total boundaries length (ED) between the forest patchi and human-related neighboring patchk, calculated in meters by the sum for boundary type (Mcgarigal and Marks, 1995McGarigal K, Marks B. Fragstats: spatial pattern analysis program for quantifying landscape structure. Corvallis: Oregon State University; 1995. 134p.; Zeng and Wu, 2005Zeng H, Wu XB. Utilities of edge-based metrics for studying landscape fragmentation. Computers, Environment and Urban Systems. 2005;29:159-78.) |
FRAGSTATS®
|