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Title

MODELING GAZELLA SUBGUTTUROSA DISTRIBUTION IN BAMOU NATIONAL PARK USING MAXIMUM ENTROPY

Year: 1392
COI: NIAC01_149
Language: EnglishView: 856
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Authors

Hadi Radnezhad - Faculty of Agriculture and natural resource, Islamic azad university khorasgan (Isfahan) branch, Iran
Rasol Khosravi - Faculty of Natural Resources, Isfahan University of Technology, Isfahan, Iran.
Amin Jamalimanesh - Faculty of Agriculture and natural resource, Islamic azad university khorasgan (Isfahan) branch, Iran
Iman Amoeian - Faculty of Agriculture and natural resource, Islamic azad university khorasgan (Isfahan) branch, Iran

Abstract:

Knowledge about the species distribution is critical to the management of wildlife habitats (Andren, 1994). However, direct survey of wildlife and exact determination of their distribution in large scale is costly, time-consuming and even impossible in some cases. On the other hand, as time-related changes in landscape structure alter the combination and frequency of species (Anderson and Gutzwiller, 1994), the application of species distribution prediction models seems essential. Differences between the various recommended models to predict species distribution stem from their use of statistical algorithms and required data about the presence/absence of species. Maximum entropy (MaxEnt), a prediction method that uses presence records to model species habitats, is especially beneficial when comprehensive data about a particular species is not available (Phillips et al., 2006). The current study sought to model Gazella subgutturosa distribution in Bamou National Park (Iran) by using MaxEnt.MATERIALS AND METHODS In order to do so, first, the variables which contributed to G. subgutturosa habitat preference in the studied area (including altitude, slope, direction, distance from villages, water resources, watering places, vegetation type, and land use) were listed based on the comments of environment experts. After preparing the maps and rasterizing them with a predefined cell size, the suitability of each habitat cell was expressed as a function of the environmental variables, i.e. cells with higher values were more suitable for G. subgutturosa.RESULTS AND DISCUSSION: According to our findings, MaxEnt could efficiently model G. subgutturosa distribution in Bamou National Park. In fact, the method not only determined the species distribution by recieving a combination of presence data and environmental variables, but also considered the relations between the variables via employing both discrete and continuous variables. MaxEnt model was not highly sensitive to the number of presence records and effectively worked with as few as five presence records. Moreover, it could tolerate a spatial error of five kilometers in determining presence points. Our findings may be employed in the management of G. subgutturosa habitat and conservation of this species at Bamou National Park. Further studies are thus suggested to clarify the distribution of significant species in other protected areas in Iran

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This Paper COI Code is NIAC01_149. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/340277/

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Radnezhad, Hadi and Khosravi, Rasol and Jamalimanesh, Amin and Amoeian, Iman,1392,MODELING GAZELLA SUBGUTTUROSA DISTRIBUTION IN BAMOU NATIONAL PARK USING MAXIMUM ENTROPY,The 1st International Conference on New Ideas in Agriculture,Isfahan,https://civilica.com/doc/340277

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Type of center: Azad University
Paper count: 10,728
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