نتایج جستجو برای: landscape metrics

تعداد نتایج: 132905  

2017
Susan Ellis-Felege Shannon E. Albeke Nathan P. Nibbelink Michael J. Conroy D. Clay Sisson William E. Palmer John P. Carroll Susan N. Ellis-Felege

Nest predation is a critical component in avian productivity and typically is the leading cause of nest failure for most birds. Several landscape features are thought to drive the behavioral interaction between northern bobwhite (Colinus virginianus; e.g., nest placement) and their predators (e.g., search methods for food acquisition). In order to understand habitat characteristics influencing ...

Journal: :Remote Sensing 2016
Xinyu Zheng Yang Wang Muye Gan Jing Zhang Longmei Teng Ke Wang Zhangquan Shen Ling Zhang

Detailed and precise information of land-use and land-cover (LULC) in rural area is essential for land-use planning, environment and energy management. The confusion in mapping residential and industrial areas brings problems in energy management, environmental management and sustainable land use development. However, they remain ambiguous in the former rural LULC mapping, and this insufficient...

2005
Alexandra D. Syphard Keith C. Clarke Janet Franklin

Land use change is one of the most important anthropogenic factors affecting terrestrial ecosystems, causing habitat loss, fragmentation, and interactions with other components of global change, such as biological invasions of non-native species. In southern California, population growth and economic expansion are the primary drivers of land use change, and the population is expected to double ...

2015
Aarne Töllinen Heikki Karjaluoto

The objective of this paper is to develop a conceptual framework for measuring the effectiveness of social media marketing communications. With recent advances in information and communications technology, especially in social collaboration technologies, both academics and practitioners rethink whether the existing marketing communications performance metrics are still valid in the changing com...

Journal: :محیط زیست طبیعی 0
آرش کرمی کارشناس ارشد رشتۀ جنگلداری و اقتصادجنگل دانشکدۀ منابع طبیعی، دانشگاه تهرا جهانگیر فقهی دانشیار گروه جنگلداری و اقتصاد جنگل دانشکدۀ منابع طبیعی، دانشگاه تهران محمدرضا مروی مهاجر استادگروه جنگلداری و اقتصاد جنگل دانشکدۀ منابع طبیعی، دانشگاه تهران

without doubt is one important aspects of sustainable forest management the continuing forest regeneration. identify and determine is effective dispersal and distribution pattern of regeneration patches in various types of forest and its evolution, in maintaining biodiversity in natural ecosystems. purpose was chosen of gorazbon district kheyrod forest for study, all patches regeneration were l...

Journal: :آمایش سرزمین 0
سعیده اسکندری دانشجوی دکتری جنگل داری، دانشکده منابع طبیعی، دانشگاه علوم کشاورزی و منابع طبیعی ساری ایوب مرادی دانش آموخته کارشناسی ارشد جنگل داری منابع طبیعی، دانشگاه علوم کشاورزی و منابع طبیعی ساری جعفر اولادی استادیار گروه جنگل داری، دانشکده منابع طبیعی، دانشگاه علوم کشاورزی و منابع طبیعی ساری

gel sefid village is in mashayekh village in central part of ardal city of chahar mahal and bakhtiari province. in the research, quickbird satellite image in google earth software was used to introduce the landscape of this village and to recognize the whole human uses and natural spots in the study area. then the resulting map was transferred to arcgis 3.1 software and the area land use map wa...

Journal: :CoRR 2017
Salman M. Al-Shehri Pavel Loskot Tolga Numanoglu Mehmet Mert

The metrics play increasingly fundamental role in the design, development, deployment and operation of telecommunication systems. Despite their importance, the studies of metrics are usually limited to a narrow area or a well-defined objective. Our study aims to more broadly survey the metrics that are commonly used for analyzing, developing and managing telecommunication networks in order to f...

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