نتایج جستجو برای: bioindicators

تعداد نتایج: 1050  

ژورنال: Medical Laboratory Journal 2015
Dabirzadeh, M, , Davoodi, T, , Hashemi, M, , Pashaie Naghadeh, A, ,

Abstract Background and objective: Bioindicators of drinking water are always influenced by physical and chemical factors such as turbidity and chlorine.  Considering the assessment of drinking water quality is based on residual chlorine, E.coli, heterotrophic bacteria and turbidity.  We aimed to evaluate the effect of pH, chlorine residual and turbidity on the microbial ...

1999
Jaroslav Bohac

The family Staphylinidae is one of the largest beetle families and is distributed worldwide in almost all types of ecosystems. The morpho-ecological characteristics of staphylinid beetle adults and developmental stages are summarized, and features pertaining to their potential use as bioindicators are highlighted. Methods of study and practical examples are given for the application of staphyli...

2008
Alan N. Andersen

Ecological patterns and processes are characteristically scale dependent, and research findings often cannot be translated easily from one scale to another. Conservation biology is challenged by a lack of congruence between the spatial scales of ecological research (typically involving small plots) and land management (typically involving whole landscapes). Here, I discuss spatial scaling issue...

ژورنال: Medical Laboratory Journal 2015
Ghazanfari, Z, , Karvar, M, , Pouryazdanpanah, N, ,

Abstract Background and objective: Bioindicators of drinking water are always influenced by physical and chemical factors such as turbidity and chlorine.  Considering the assessment of drinking water quality is based on residual chlorine, E.coli, heterotrophic bacteria and turbidity.  We aimed to evaluate the effect of pH, chlorine residual and turbidity on the microbial ...

Journal: Pollution 2018

Qualitative status of the environment is signaled by a group of indicators, known as bioindicators, several of which are responsible for showing progressive impacts of different types of pollutants. Having addressed the influence of various bioindicators in environmental pollution, it has been revealed that bioindicators are sensitive to any disturbance in any environment. With regards to the p...

Journal: :River Systems 2003

Qualitative status of the environment is signaled by a group of indicators, known as bioindicators, several of which are responsible for showing progressive impacts of different types of pollutants. Having addressed the influence of various bioindicators in environmental pollution, it has been revealed that bioindicators are sensitive to any disturbance in any environment. With regards to the p...

ژورنال: Medical Laboratory Journal 2015
Aghapour, SM, , Amanidaz, N, , Bay, A, , Zafarzadeh, A, ,

Abstract Background and objective: Bioindicators of drinking water are always influenced by physical and chemical factors such as turbidity and chlorine.  Considering the assessment of drinking water quality is based on residual chlorine, E.coli, heterotrophic bacteria and turbidity.  We aimed to evaluate the effect of pH, chlorine residual and turbidity on the microbial ...

Journal: :Trends in parasitology 2010
Victor M Vidal-Martínez Daniel Pech Bernd Sures S Thomas Purucker Robert Poulin

This review assesses the usefulness of parasites as bioindicators of environmental impact. Relevant studies published in the past decade were compiled; factorial meta-analysis demonstrated significant effects and interactions between parasite levels and the presence and concentration of various pollutants and/or environmental stressors. These effects and interactions were also evident in subset...

2006
R. Gadzała-Kopciuch B. Berecka J. Bartoszewicz B. Buszewski

Toxic chemicals introduced into the environment can penetrate ecosystems and can be found in the whole biosphere. Chemical contamination may affect ecosystems, causing changes in the functions of particular organisms. Adverse effects of xenobiotics and their metabolites on living organisms can be observed. In the last few years investigations have focused on searching for bioindicators (both pl...

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