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Assessment Of Habitat Suitability For Gazella Subgutturosa In The Xinjiang Based On The Ecological Niche Modeling

Posted on:2016-07-30Degree:MasterType:Thesis
Country:ChinaCandidate:M T L A B D K R M ( R a h m u Full Text:PDF
GTID:2180330476950325Subject:Biology
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Understanding the endangered wild animals, we need to clear species habitat requirements and suitable habitat, spatial distribution pattern, and analyze the matching relationship of species and habitat requirements of the local natural environment, further analysis of the species population and reduce the endangered causes, provide a basis for countermeasures to protect the reasonable. In this study, in order to clear the distribution of the Gazella subgutturosa in the Xinjiang, and Further analysis of habitat features of it, A predictive habitat distribution map of Gazella subgutturosa was estimated using the Maximum Entropy(MAXENT) model with a total of296 recorded points of known bear occurrence and19 environmental factors.Results showed that Mean Temperature of Warmest Quarter( Bio10)、 Max Temperature of Warmest Month(Bio5)、Precipitation of Seasonality( BIO 15)and Precipitation of Driest Month( BIO 14)Has little effect on the habitat selection of Gazella subgutturosa. Annual Mean Temperature( BIO 1) is the main factor influencing habitat choice of Gazella subgutturosa. The second is Mean Temperature of Coldest Quarter(Bio11)、Precipitation of Driest Quarter(Bio17)、Min Temperature of Coldest Month(Bio6)、Precipitation of Coldest Quarter(Bio19)、Mean Temperature of Driest Quarter(Bio9)、Temperature Seasonality(Bio4)、Isothermality(Bio3)、Annual Precipitation(Bio12)、Precipitation of Wettest Quarter(Bio16)、Precipitation of Wettest Month(Bio13)、Mean Temperature of Wettest Quarter( Bio8)、Precipitation of Warmest Quarter(Bio18)、temperature Annual Range(Bio7)、Mean Diurnal Range(Bio2)and Precipitation of Driest Month(Bio14).The results from the study which also can be seen in the main high Gazella subgutturosa suitable distribution area in Xinjiang can be divided into three regions,one is located in the Tarim surrounding pelvic region south of the Tianshan Mountains; the other is located in the north of the Tianshan Mountains surrounding area of the Junggar Basin.;Another is located in the eastern part of Xinjiang Turpan-Hami basin surrounding areas.Suitable distribution of regional and sub-distribution area suitable for a wider range of low, including the Taklimakan Desert in Xinjiang Altay mountains surrounding areas such as the north. As can be seen from the figure has high suitable habitat in and around Turpan- Hami Basin, Tarim high suitable areas surrounding pelvic interconnected, and high suitable areas inside the Junggar Basin is independent. Most times suitable areas are located in the surrounding high suitable areas. And to the2050 high suitable regional and sub suitable areas,low suitable areas and unsuitable areas most did not change significantly, but the high suitable regional area will be a little change. This study not only provides us with the actual distribution of Gazella subgutturosa in the Ebinur Lake, but also gives us an important clue in the future research of Gazella subgutturosa for its habitat.
Keywords/Search Tags:Gazella subgutturosa, Niche model, habitat evaluation, Jackknife test, suitable habitat
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