نتایج جستجو برای: disturbance

تعداد نتایج: 44092  

Journal: :Land 2021

Forest classifications by disturbance permit designation of multiple types both old growth forests and shorter-lived forests, which auto-replace under severe disturbance, also identification loss the type associated forest. Historically, fire flooding regimes, or conversely, infrequent produced unique such as disturbance-independent American beech (Fagus grandifolia), eastern hemlock (Tsuga can...

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Skid trails are the main routes for wood extraction and also the main source of runoff and sediment production in Forests. This research was conducted in Kuhmiyan forest of Golestan Province to determine infiltration, compaction, strength (resistance to penetration) and moisture content in three treatment including control (in the forest), wheel ruts and middle of skid trail were measured in th...

2017
Dong Woo Kang Chang Uk Lee Hyun Kook Lim

Sleep disturbances such as insomnia, hypersomnia, and circadian rhythm disturbance are common in normal elderly and Alzheimer's disease (AD) patients. To date, special attention has been paid to sleep disturbance in the clinical course of AD insofar as the interaction of sleep disturbance with the pathogenesis of AD may impact the clinical course and cognitive function of AD patients. This revi...

2013
Pedro Cardoso François Rigal Simone Fattorini Sofia Terzopoulou Paulo A. V. Borges

Successful conservation plans are conditioned by our ability to detect anthropogenic change in space and time and various statistical analyses have been developed to handle this critical issue. The main objective of this paper is to illustrate a new approach for spatial analysis in conservation biology. Here, we propose a two-step protocol. First, we introduce a new disturbance metric which pro...

Journal: :The American naturalist 2002
Diego P Vázquez Daniel Simberloff

Niche breadth of species has been hypothesized to be associated with species' responses to disturbance. Disturbance is usually believed to affect specialists negatively, while generalists are believed to benefit from disturbance; we call this the "specialization-disturbance" hypothesis. We also propose an associated hypothesis (the "specialization-asymmetry-disturbance" hypothesis) under which ...

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