• Journal of Resources and Ecology
  • Vol. 11, Issue 2, 140 (2020)
(a) Map of China and the location of the Middle and Lower Reaches of the Yangtze River; (b) LWfG; (c) Distribution of the main lakes and rivers in the Middle and Lower Reaches of the Yangtze River
Fig. 1. (a) Map of China and the location of the Middle and Lower Reaches of the Yangtze River; (b) LWfG; (c) Distribution of the main lakes and rivers in the Middle and Lower Reaches of the Yangtze River
Flow chart of LWfG habitat suitability modeling
Fig. 2. Flow chart of LWfG habitat suitability modeling
Profiles of the AUC curves in LWfG habitat suitability model (The red (training) line shows the “fit” of the model to the training data. The blue (testing) line indicates the fit of the model to the testing data, and is the real test of the model’s predictive power)
Fig. 3. Profiles of the AUC curves in LWfG habitat suitability model (The red (training) line shows the “fit” of the model to the training data. The blue (testing) line indicates the fit of the model to the testing data, and is the real test of the model’s predictive power)
Jackknife test of variable contribution results for modeling LWfG’s HSM in the current situation
Fig. 4. Jackknife test of variable contribution results for modeling LWfG’s HSM in the current situation
Response curves of environmental variables in LWfG HSM (the plots’ x axis describes the environmental variables, the plots’ y axis describes the habitat suitability index). (a) Distance to road (b) Distance to residents (c) Human density (d) Land use (e) Patch density
Fig. 5. Response curves of environmental variables in LWfG HSM (the plots’ x axis describes the environmental variables, the plots’ y axis describes the habitat suitability index). (a) Distance to road (b) Distance to residents (c) Human density (d) Land use (e) Patch density
Suitable habitat distribution for LWfG in the current and future scenarios. (a) Current situation; (b) RCP2.6; (c) RCP8.5.
Fig. 6. Suitable habitat distribution for LWfG in the current and future scenarios. (a) Current situation; (b) RCP2.6; (c) RCP8.5.
Habitat area of LWfG in different suitability classes (lower, moderately and highly suitable) based on the consensus forecast from 2 GCMs for the current and two RCPs by 2070
Fig. 7. Habitat area of LWfG in different suitability classes (lower, moderately and highly suitable) based on the consensus forecast from 2 GCMs for the current and two RCPs by 2070
Plant speciesFrequency of occurrences
Carex heterolepis124
Heleocharis migoana73
Alopecurus aequalis375
Cynodon dactylon161
Polygonum criopolilanum74
Eleocharis valleculosa83
Table 1.

List of plant species examined and their numbers of occurrences

SpeciesAUC value
Carex heterolepis0.911
Heleocharis migoana0.901
Alopecurus aequalis0.900
Cynodon dactylon0.872
Polygonum criopolilanum0.867
Eleocharis valleculosa0.880
LWfGa0.887
LWfGb0.891
LWfGc0.806
LWfGd0.981
LWfGe0.976
LWfGf0.988
Table 2.

AUC values of plant HSM and LWfG HSM