Ivana Lozanovska

University of Lisbon | UL · Centro de Estudos Florestais (CEF)

Increasing natural and anthropogenic deposition of nitrate (NO3−) and sulfate (SO42−) to peatlands may modify CH4 oxidation, CO2 and N2O production, thereby affecting the balance of greenhouse gases (GHG) globally. Among environmental factors controlling these biogeochemical processes, effects of peatland microrelief are poorly understood. Fluxes o...

Functional diversity indices are increasingly being used to describe plant community assembly processes and ecosystem functioning. However, their relevance for predicting alterations in ecosystem functioning of riparian plant communities is still largely unknown. We investigated the functional patterns of riparian forests along environmental gradie...

River regulation may filter out riparian plants often resulting in reduced functional diversity, i.e., in the range of functions that organisms have in communities and ecosystems. There is, however, little empirical evidence about the magnitude of such reductions in different regions. We investigated the functional diversity patterns of riparian wo...

Dam-induced disruption of the natural continuum of rivers has manifold consequences on fluvial ecosystems, but how distinct plant groups and plant adaptive strategies can mediate the regulation effects is largely unexplored. In this work, we focused on how different plant groups (macrophytes, bryophytes, and riparian woody vegetation) respond to hy...

Major threats of freshwater systems are river damming and habitat degradation, further amplified by climate change, another major driver of biodiversity loss. This study aims to understand the effects of climate change, and its repercussions on hydropower production, on the instream biota of a regulated river. Particularly, it aims to ascertain how...

This work assesses the effects of river regulation on the diversity of different instream and riparian biological communities along a relieve gradient of disturbance in regulated rivers. Two case studies in Portugal were used, with different river regulation typology (downstream of run-of-river and reservoir dams), where regulated and free-flowing...

Functional diversity indices were introduced to describe community assembly processes and as potential indicators of ecosystem functioning. However, few studies have tested their effectiveness and the predictive capability in woody plant communities upon environmental changes. We found that Mediterranean shrublands have a significantly higher FRic...

Research that encompasses the concept of ecosystem services was intended to reflect the relationship of the population in this part of Macedonia with nature and the benefits they have from the ecosystems. The results are a good basis for a better understanding of the socio-economic situation in the region which will contribute to a better and compr...

NGOs are essential partners in promoting environmental protection and achieving sustainable development. Their active participation at local, national and transboundary level in all phases of projects and processes, from their design, implementation in the field, operationalization, monitoring and evaluation, contributes not only to increased trans...

Recently, research activities in plant secondary metabolites are focused on their properties as a new source of natural antioxidants. In this study, nonenzymatic antioxidant acitvity (NEAA) of 20 Macedonian medicinal plants was determined using -carotene/linoleic acid oxidation method. Plant species were collected on the Jablanica Mt. at the altitu...

Phytochemicals as chemotaxonomic markers are extensively found at different levels in many medicinal plants. This work evaluates the total phenolic or flavonoid contents of 20 medicinal plants from Macedonia grown on the mountain Jablanica (Gorna Belica) at the altitude from 1450 to 2000 m. The used plant parts for phenol and flavonoid analyses wer...