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Prediction of Suitable Habitat for Lycophytes and Ferns in Northeast China: A Case Study on Athyrium brevifrons

Chinese Geographical Science 2019年第6期29卷 1011-1023页

作者： LI Yan CAO Wei HE Xingyuan CHEN Wei XU Sheng Institute of Applied Ecology Chinese Academy of SciencesShenyang 110016China University of Chinese Academy of Sciences Beijing 100049China Shenyang Arboretum Chinese Academy of SciencesShenyang 110016China Key Laboratory of Forest Ecology and Management Institute of Applied EcologyChinese Academy of SciencesShenyang 110016China

Suitable habitat is vital for the survival and restoration of a *** the suitable habitat range for lycophytes and ferns is prerequisite for effective species resource conservation and recovery *** this study, we took Athyrium brevifrons as an example, predicted its suitable habitat using a Maxent model with 67 occurrence data and nine environmental variables in Northeast *** area under the curve(AUC) value of independent test data, as well as the comparison with specimen county areal distribution of *** exhibited excellent predictive *** type of environmental variables showed that precipitation contributed the most to the distribution prediction, followed by temperature and *** contribution and permutation importance both indicated that precipitation of driest quarter(Bio17) was the key factor in determining the natural distribution of ***, the reason could be proved by the fern gametophyte *** analysis of high habitat suitability areas also showed the habitat preference of ***: comparatively more precipitation and less fluctuation in the driest *** Mountains, covering almost all the high and medium habitat suitability areas, provide the best ecological conditions for the survival of ***, and should be considered as priority areas for protection and restoration of the wild *** potential habitat suitability distribution map could provide a reference for the sustainable development and utilisation of *** resource, and Maxent modelling could be valuable for conservation management planning for lycophytes and ferns in Northeast China.

关键词： Athyrium brevifrons lycophytes and ferns Maxent suitable habitat Northeast China gametophyte

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