Journal
FORESTS
Volume 13, Issue 4, Pages -Publisher
MDPI
DOI: 10.3390/f13040490
Keywords
generalized additive model; generalized linear model; MaxEnt; random forest
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Funding
- Republic of Turkey
- Ministry of National Education
- Warnell School of Forestry and Natural Resources at the University of Georgia
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This study focused on the distribution of the rare and threatened plant species eastern turkeybeard in the Talladega National Forest in Alabama, USA. Different modeling methods were used to develop a suitable habitat map, and key factors contributing to habitat suitability were identified. The findings of this study can be used to guide habitat conservation strategies in similar ecosystems.
This study focused on the rare and threatened plant species eastern turkeybeard (Xerophyllum asphodeloides (L.) Nutt.) and its presence or absence in the Talladega National Forest in Alabama, USA. An ensemble suitable habitat map was developed using four different modeling methods (MaxEnt, Generalized Linear Model, Generalized Additive Model, and Random Forest). AUC evaluation scores for each model were 0.99, 0.96, 0.98, and 0.99, respectively. Biserial correlation scores for models ranged from 0.71 (GLM) to 0.94 (RF). The four different models agreed suitable habitat was found to cover 159.57 ha of the land. The ground slope variable was the most contributive variable in the MaxEnt and RF models and was also significant in the GLM and GAM models. The knowledge gained from this research can be used to establish and implement habitat suitability strategies across the Talladega National Forest and similar ecosystems in the southern United States.
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