نتایج جستجو برای: landscape maintenance

تعداد نتایج: 212947  

2017
Larissa Rocha-Santos Maíra Benchimol Margaret M Mayfield Deborah Faria Michaele S Pessoa Daniela C Talora Eduardo Mariano-Neto Eliana Cazetta

As tropical rainforests are cleared, forest remnants are increasingly isolated within agricultural landscapes. Understanding how forest loss impacts on species diversity can, therefore, contribute to identifying the minimum amount of habitat required for biodiversity maintenance in human-modified landscapes. Here, we evaluate how the amount of forest cover, at the landscape scale, affects patte...

حسین خادمی, , حمیده خیر, ,

Understanding the variability of pedological properties as well as the soil quality attributes on different landscape positions in hummocky terrains would result in a better land management in such areas. Despite the importance of such studies, no research has been couducted on the landscape-scale variability of soil quality indices in Iran and most researchers have so far focussed on pedologic...

Following the unbalanced development and overexploitation of the country's watersheds, land fragmentation has become a major concern for the conservation of ecosystem services and land health. For this purpose, the present study was planned to evaluate and compare the landscape connectivity indices of KoozehTopraghi Watershed as one of the ecologically susceptible watersheds located in Ardabil ...

Mohsen Faizi, Sina Razzaghi asl,

Examining the universities postgraduate landscape architecture table in Iran, indicates the increasing growth in the establishment of this major course in most universities nationwide, since almost 10 years from the beginning of the first academic course of this major in the Shahid Beheshti University (SBU). As a result, every year the number of graduated entering the market is increasing in...

Journal: :The Journal of biological chemistry 2012
Camille Sindhu Payman Samavarchi-Tehrani Alexander Meissner

Input from various signaling pathways in conjunction with specific transcription factors (TFs), noncoding RNAs, and epigenetic modifiers governs the maintenance of cellular identity. Endogenous or exogenous TFs operate within certain boundaries, which are set, in part, by the cell type-specific epigenetic landscape. Ectopic expression of selected TFs can override the cellular identity and induc...

2013
Kleopatra Chatziprimou Kevin Lano Steffen Zschaler

As Cloud Computing becomes more predominant, large scale datacenters are subject to an increasing demand for efficiency and flexibility. However, growing infrastructure management complexity and maintenance costs are becoming a hindrance to the advancement of the Cloud vision. In this paper we discuss how existing datacenter resource management approaches fail to provide infrastructure elastici...

Journal: :Trends in ecology & evolution 1998
M C Mack C M D'Antonio

Human management activities have altered the frequency and intensity of ecosystem disturbance often with enormous impacts on landscape structure and composition. One additional and under-appreciated way in which humans have altered disturbance regimes is through the introduction of invasive non-native species, themselves capable of modifying existing disturbance regimes or introducing entirely ...

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