Vasile Cristea

Vasile Cristea
Babeş-Bolyai University | UBB · Taxonomy and Ecology

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33
Publications
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342
Citations

Publications

Publications (33)
Article
Full-text available
Cristea V., 2021. Neighbourhood-based evidence of tree diversity promotion by beech in an old-growth deciduous-coniferous mixed forest (Eastern Carpathians). Ann. For. Res. 64(1): 13-30. Abstract Neighbourhood models are useful tools for understanding the role of positive and negative interactions in maintaining the tree species diversity in mixed...
Article
Romania’s natural resources are currently subjected to aggressive and barely controlled exploitation. These resources include medicinal plants from the spontaneous flora, which are much more in demand and appreciated on the foreign market than those derived from cultivation. Having information available regarding commercial societies (S.C.) and phy...
Chapter
Plant assemblages and successional pathways were studied on large, abandoned ore mining heaps located around the open-cast pits from Roşia Montană, Romania. Four differently aged mining spoils with relatively homogenous substrate and one control plot were investigated using the chronosequence approach. The effects of the waste dump age, slope steep...
Article
Full-text available
Plant symbols are a part of the cultural treasure of humanity, whether we consider the archaic secular traditions or religion, heraldry etc., throughout history until the present day. To flowers, in particular, there have been attributed particular meanings over thousands of years. Every art form has involved flower symbols at some point, but in pa...
Article
The aim of this study was to select a list of Mediterranean taxa (sensu stricto) from the vascular flora of Romania as well as to reveal the vegetation types in which these species occur and the community types in which they are dominant. A total of 139 Mediterranean taxa were selected, of which 121 were recorded in phytosociological releves and 18...
Article
The movement of nature's protection in Romania had a number of promoters and the most representative of Alma Mater Napocensis were Emil G. Racoviţǎ, Alexandru Borza and Emil Pop. E. G. Racoviţǎ, Antarctic explorer, the creator in Cluj of the first academic institute of bio-speleological research in the world, was also a pioneer in defining and clas...
Article
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In this paper we present the abundance, distribution, nest-site characteristics and habitat analysis of woodpecker species in managed forests. The studied territory is part of a Special Protection Area for bird species. We found breeding evidence of six of the eight sedentary woodpecker species from Romania: Greyheaded- (Picus canus), Green- (Picus...
Article
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This paper reports, for the first time, the presence of the species Plantago sempervirens Crantz in the spontaneous Romanian flora. The only locality known so far to shelter this species is the Pusta Village (Şincai Commune, Mureş County). The main population occupies a surface of approximately one hectare, being located on the slopes of one hill....
Article
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Lichens are sensitive symbiotic organisms to various changes of the environmental conditions. The dispersal abilities of lichens are often limiting the colonisation of new habitat patches and epiphytic species show close ecological relations to their host trees, including age class. Lichen cover reveals a complex succession during the life of a tre...
Article
Full-text available
The Convention on Biological Diversity (CBD) aims at the conservation of all three levels of biodiversity, that is, ecosystems, species and genes. Genetic diversity represents evolutionary potential and is important for ecosystem functioning. Unfortunately, genetic diversity in natural populations is hardly considered in conservation strategies bec...
Article
Full-text available
The Convention on Biological Diversity (CBD) aims at the conservation of all three levels of biodiversity, that is, ecosystems, species and genes. Genetic diversity represents evolutionary potential and is important for ecosystem functioning. Unfortunately, genetic diversity in natural populations is hardly considered in conservation strategies bec...
Article
Full-text available
1 SUMMARY: The general trends of the spontaneous vegetation development on the mining waste dumps from Roşia Montană were investigated and the relationships between the vegetation cover, waste dump age and some of its geomorphological characteristics were studied. The analysis conducted on the 60 years old waste dump identified 53 mining spoils pat...
Article
To estimate the importance of community structure and environmental factors for maintenance and in situ conservation of populations of European Globeflower (Trollius europaeus subsp. europaeus) in four sites (one within a natural reserve) in a low elevation but cool valley of the Transylvanian Carpathian foothills, an inventory of all globeflower i...
Article
Full-text available
We studied gold mining waste dumps in Roşia Montană (South-eastern Carpathians) that had similar environmental conditions and management histories but different ages due to successive cessation times of mining activities. A cronosequence for four waste dumps was included in the study: WD2, ~ 2 yrs old; WD20, 20– 25 yrs old; WD4, 38–45 yrs old; and...
Chapter
Starting from the premise that any field requires knowledge of the ideas of its predecessors, this paper points out the contributions of three generations of representatives of the Cluj School to nature conservation. Thus, the careers of A. Borza and E. Racoviþă, who laid the theoretical and practical foundations of this movement, are presented; th...
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This paper deals with the floristic variability and the ecological factors responsible for it in the Carex curvula alpine grasslands. For this purpose a non-hierarchical clustering method based on non-parametric density estimates and the detrended correspondence analysis (DCA) were employed. Most of the 150 relevés are grouped in a central, well-de...
Article
This paper deals with the floristic variability and the ecological factors responsible for it in the Carex curvula alpine grasslands. For this purpose a non-hierarchical clustering method based on non-parametric density estimates and the detrended correspondence analysis (DCA) were employed. Most of the 150 relevés are grouped in a central, well-de...
Article
Full-text available
The paper reports the presence of Stipa dasyphylla (Lindem.) Trautv. in two new sites in Transylvania (Romania). The habitat type and plant communities in which the species occurs are described. The associations in which S. dasyphylla was identified are Stipetum pulcherrimae Soó 1942 (at Cheia, Cluj county) and Danthonio alpinae-Stipetum stenophyll...
Article
Full-text available
A comparison of population dynamics and forest architecture has been carried in two well preserved beech-fir forests of Europe, in the Carpates and in the Vosges. The two reserves present marked differences in climate, soils and local environment. We show that beech dominates all the strata. In a situation of valley bottom (Carpates), its shady can...
Article
Floristic diversity at community level and community diversity at landscape level are presented for the main grassland and dwarf-shrub communities in the sub-alpine and alpine zones in five mountain ranges of the Romanian Carpathians. The 30 plant communities studied had their floristic composition and distribution determined by geological substrat...
Article
Full-text available
This paper proposes to establish a synthesis of research, protection measures and regeneration initiatives for mountain pine (a priority EU habitat type, 4070* -Bushes with Pinus mugo and Rhododendron myrtifolium) from inside the Maramureş Mountains Nature Park, and also to depict the distribution of this vegetation in the area. Viewing these commu...

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