DSpace Collection:
http://hdl.handle.net/10174/64
2024-03-29T13:00:23ZfuzzySim: Fuzzy Similarity in Species Distributions
http://hdl.handle.net/10174/25149
Title: fuzzySim: Fuzzy Similarity in Species Distributions
Authors: Barbosa, A. Márcia
Abstract: This package provides functions to calculate fuzzy versions of species' occurrence patterns based on presence-absence data (including inverse distance interpolation, trend surface analysis and prevalence-independent favourability GLM), and pair-wise fuzzy similarity (based on fuzzy versions of commonly used similarity indices) among those occurrence patterns. Includes also functions for model comparison (overlap and fuzzy similarity, loss or gain), and for data preparation, such as obtaining unique abbreviations of species names, converting species lists (long format) to presence-absence tables (wide format), transposing part of a data frame, assessing the false discovery rate, or analysing and dealing with multicollinearity among variables. Includes also sample datasets for providing practical examples.2018-01-01T00:00:00ZgDefrag: Graph-Based Landscape De-Fragmentation
http://hdl.handle.net/10174/24217
Title: gDefrag: Graph-Based Landscape De-Fragmentation
Authors: Mestre, Frederico; Ascensão, Fernando; Barbosa, A. Márcia
Abstract: This package provides a set of tools to help the ecological de-fragmentation of landscapes divided by linear transportation infrastructures. It works by prioritizing the different sections of these infrastructures (e.g. roads, railways) to increase the available amount of a given resource for widlife.2018-01-01T00:00:00ZmodEvA: Model Evaluation and Analysis
http://hdl.handle.net/10174/20946
Title: modEvA: Model Evaluation and Analysis
Authors: Barbosa, A. Márcia; Brown, Jennifer; Jiménez-Valverde, Alberto; Real, Raimundo
Abstract: The modEvA package analyses species distribution models and evaluates their performance. It includes functions for performing variation partitioning, calculating several measures of model discrimination and calibration, optimizing prediction thresholds based on a number of criteria, performing multivariate environmental similarity surface (MESS) analysis, and displaying various analytical plots.2016-01-01T00:00:00ZfuzzySim: Fuzzy Similarity in Species Distributions, v1.7
http://hdl.handle.net/10174/20945
Title: fuzzySim: Fuzzy Similarity in Species Distributions, v1.7
Authors: Barbosa, A. Márcia
Abstract: This package contains functions to calculate fuzzy versions of species occurrence patterns based on presence-absence data (including inverse distance interpolation, trend surface analysis and prevalence-independent favourability GLM), and pair-wise fuzzy similarity (based on fuzzy versions of commonly used similarity indices) among those occurrence patterns. Includes also functions for model comparison (overlap and fuzzy similarity, loss or gain), and for data preparation, such as obtaining unique abbreviations of species names, converting species lists (long format) to presence-absence tables (wide format), transposing part of a data frame, assessing the false discovery rate, or analysing and dealing with multicollinearity among variables. Includes also sample datasets for providing practical examples.2016-01-01T00:00:00Z