رسالة جامعية
Incerteza nos modelos de distribuição de espécies ; Uncertainty in species distribution models
| العنوان: | Incerteza nos modelos de distribuição de espécies ; Uncertainty in species distribution models |
|---|---|
| المؤلفون: | Tessarolo, Geiziane |
| المساهمون: | Muñoz, Joaquin Hortal, Rangel, Thiago Fernando |
| بيانات النشر: | Universidade Federal de Goiás Brasil UFG Programa de Pós-graduação em Ecologia e Evolução (ICB) Instituto de Ciências Biológicas - ICB (RG) |
| سنة النشر: | 2015 |
| المجموعة: | Repositório da Universidade Federal de Goiás (UFG) |
| مصطلحات موضوعية: | Características das espécies, Cobertura ambiental, Desenho amostral, Incerteza, Modelos de distribuição de espécies, Species traits, Environmental Completeness, Survey design, Uncertainty, Species distribution models, CIENCIAS BIOLOGICAS::ECOLOGIA |
| الوصف: | Aim Species Distribution Models (SDM) can be used to predict the location of unknown populations from known species occurrences. It follows that how the data used to calibrate the models are collected can have a great impact on prediction success. We evaluated the influence of different survey designs and their interaction with the modelling technique on SDM performance. Location Iberian Peninsula Methods We examine how data recorded using seven alternative survey designs (random, systematic, environmentally stratified by class and environmentally stratified using p-median, biased due to accessibility, biased by human density aggregation and biased towards protected areas) could affect SDM predictions generated with nine modelling techniques (BIOCLIM, Gower distance, Mahalanobis distance, Euclidean distance, GLM, MaxEnt, ENFA and Random Forest). We also study how sample size, species’ characteristics and modelling technique affected SDM predictive ability, using six evaluation metrics. Results Survey design has a small effect on prediction success. Characteristics of species’ ranges rank highest among the factors affecting SDM results: the species with lower relative occurrence area (ROA) are predicted better. Model predictions are also improved when sample size is large. Main conclusions The species modelled – particularly the extent of its distribution – are the largest source of influence over SDM results. The environmental coverage of the surveys is more important than the spatial structure of the calibration data. Therefore, climatic biases in the data should be identified to avoid erroneous conclusions about the geographic patterns of species distributions. ; Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES ; Aim Species Distribution Models (SDM) can be used to predict the location of unknown populations from known species occurrences. It follows that how the data used to calibrate the models are collected can have a great impact on prediction success. We evaluated the influence of ... |
| نوع الوثيقة: | thesis |
| وصف الملف: | application/pdf |
| اللغة: | Portuguese |
| العلاقة: | TESSAROLO, Geiziane. Incerteza nos modelos de distribuição de espécies. 2014. 151 f. Tese (Doutorado em Ecologia e Evolução) - Universidade Federal de Goiás, Goiânia, 2014.; http://repositorio.bc.ufg.br/tede/handle/tede/3615Test; http://repositorio.bc.ufg.br/handle/ri/9939Test |
| الإتاحة: | http://repositorio.bc.ufg.br/tede/handle/tede/3615Test http://repositorio.bc.ufg.br/handle/ri/9939Test |
| حقوق: | Acesso Aberto ; http://creativecommons.org/licenses/by-nc-nd/4.0Test/ |
| رقم الانضمام: | edsbas.DF7DB1E5 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |