نوع مقاله : مقاله پژوهشی
نویسندگان
1 کارشناس ارشد محیطزیست، دانشکده شیلات و محیطزیست، دانشگاه علوم کشاورزی و منابعطبیعی گرگان
2 دانشیار گروه محیطزیست، دانشکده شیلات و محیط زیست، دانشگاه علوم کشاورزی و منابع طبیعی گرگان
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
To understand the effects of spatial scales on habitat modeling, it is necessary to apply a hierarchical spatial analysis of habitat as fauna exhibit varied reactions at different scales. Determining the ecologically relevant criteria at different spatial scales for predicting species occurrences is an important step when determining species–environment relationships. Therefore, species distribution modelling should consider all ecologically relevant spatial scales. Leopard belongs to the Palearctic Realm and its population has highly reduced in recent decades because of habitat destruction, hence is classified as endangered in the IUCN evaluation.We used ecological niche factor analysis (ENFA) and Biomapper software to study the habitat of this species at different scales. Leopards’ habitat was modeled using ENFA method with layers ranging in resolution between 30 ×30, 60 × 60, 90 × 90, 120 × 120, 150 × 150, 180 × 180 and 210 × 210, cell sizes. According to the marginality, specialization and tolerance values of each resolution and also comparing its boyce index the best scales were found to be 60 × 60 and 90×90 cell sizes.
کلیدواژهها [English]