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عنوان فارسی مقاله:
ماکروفیتها مانند ویژگی های فیزیکوشیمیایی بیواندیکاتور تالاب ها در مناطق دشت و کوه مرکزی شبه جزیره بالکان
عنوان انگلیسی مقاله:
Macrophytes as bioindicators of the physicochemical characteristics of wetlands in lowland and mountain regions of the central Balkan Peninsula
سال انتشار : 2016
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مقدمه انگلیسی مقاله:
1. Introduction
Macrophytes are essential and relevant elements in the biological assessment of habitat quality (Onaindia et al., 2005). They are able to respond to altered environmental conditions through changes in their growth and distribution (Steffen et al., 2014). Aquatic plants are not early warning indicator organisms due to their relatively long life cycles and tolerance of short-term changes in environmental conditions (Brabecz and Szoszkiewicz, 2006). Nevertheless, they are formally recognized under theWater Framework Directive of the European Union (European Commission,2000) as valuable bioindicators for estimating the ecological status of surface waters. Numerous ecological studies have been focused on investigating the relationship between aquatic plants and the physicochemical properties of the water and sediment (Onaindia et al., 2005; Kociˇ c´ et al., 2008; Kłosowski and Jabłonska, 2009; Lukács et al., 2009; ´ Steffen et al., 2014) in order to assess their bioindicator potential. The results of such studies facilitate the correction of the existing indicator values for plant species (Ellenberg et al., 1991; Kojic´ et al., 1997; Pignatti, 2005) through the collection of information on their habitat affinities. In the past, the indicator values of vascular plants were proposed for certain areas, mostly on the basis of expert judgment, so that they can be considered as surrogates for actual field measurements (Thompson et al., 1993). Presently, ecologists are making efforts to calibrate the existing indicator values of plant species in accordance with the results obtained by measur
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