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Abstract

This paper presents the obtained results on the chorology and conservation status of the lycopod species identified in Mureș County. It also represents a basis for further studies on monitoring, and establishes conservation measures for these species that are of community interest, included in the IUCN category LC (least concern). During the study, five lycopod species out of the seven listed in Romania were identified. The species are wide spread, occurring in groups that extend over relatively large areas. The conservation status is predominantly good and very good.

REFERENCES (The numbers before the reference sources are codes used in the text for chorology of the taxa). 1. 24. Boruz V., 2004 − Speciile de Alchemilla L. conservate în herbarul Universităţii din Craiova (HUCv), Analele Universităţii din Craiova , Facultatea de Horticultură, (Volum omagial), VII (XLIII), 121-126. (in Romanian) 2. 57. Boruz V., 2006 − Chorology and ecology of the Alchemilla species in the Lotru Mountains, Acta Botanica Horti Bucurestiensis , 33, 85-92. (in Romanian) 3. 12. Boruz V., 2007 − Characterization of the species Alchemilla crinita

Chorology, Inst. of Botany, Jagiellonian Univ., Cracow.

ABSTRACT

The paper lists 285 plant species, and 63 aquatic and paludal phytocoenoses, noted across the Timiş drainage basin during the past two centuries (the sign “!” indicates that the author saw such plants or phytocoenoses in the mentioned place).

For each individual species, I noted the scientific denomination, the author, the corresponding family, the bioform, the floristic element, ecological indices for humidity (H), temperature (T), and soil reaction (R), coenotic preference and chorology in the Timiş drainage basin.

Abstract

The trophic status and relationships between Secchi depth transparency (SD) chlorophyll-a (CHL) and total phosphorus (TP) concentrations from nine non-infested and five infested areas with invasive alien species, Dreissena ssp. reservoirs, situated on the Bulgarian Danube River tributaries were studied. The trophic status index (TSI) values after , and showed statistically significant differences for all three variables between infested and non-infested reservoirs. The three linear regression equations between SD × CHL, CHL × TP and SD × TP were statistically significant for the group of non-infested reservoirs, while in the infested reservoirs only the SDxCHL regression was statistically significant for P < 0.05. Our results showed that the Dreissena invasion destroyed the linear relationship between CHL × TP and SD × TP and seems to affects the accurate application of Carlson TSI.

Abstract

This paper presents current distribution of the moss Diphyscium foliosum (Hedw.) D.Mohr in the Polish part of the Carpathians. Till this time, the species has been known from the 139 localities distributed through the whole territory, but with their distinct concentration in the Western Beskidy Mountains. The altitudinal limits, habitat preferences and its threats are briefly provided. Eighteen localities, mainly from Beskid Śląski and Beskid Sądecki ranges are reported for the first time.

Laccobius gracilis Motschulsky, 1855 (Coleoptera: Hydrophilidae), a beetle new in the Polish fauna, with a revised checklist of Laccobius occurring in Poland

Laccobius gracilis Motsch. has been recorded for the first time in the Polish fauna. Notes are provided about the species' ecology and how best to catch it. A revised checklist of species from the genus Laccobius occurring in Poland is presented.

ABSTRACT

In the Romanian sector of the Timiş River, 31 species of freshwater molluscs have been found up to the present. Among them are 17 gastropod and 14 bivalve species (including all seven species of Unionidae that live in Romania, these found in the lower sector of the river - something that is extremely rare in our waters). The present synthesis used the results of a screening type field investigation carried out in 2011, as well as all the available data from the literature and our previous studies. All these data prove the ongoing degradation of the river’s ecological state and its sheltered communities. This paper presents the annotated systematic and chorological checklist of the mollusc species from this area, some of its ecological characteristics and the main environmental issues related to human impact. Changes in species distribution and the structure of communities as an answer to increased human pressure during the last decades are also thus demonstrated. New data about some alien invasive species are given, including the first encounter with Corbicula fluminea, a species formerly known only in Romanian inland waters from the Danube, in the Timiş River lower sector.

Abstract

The paper presents the data on taxonomical diversity and distribution patterns and dynamics of the Corispermum species in the Baltic States over the last hundred years. Field studies and the herbarium material analyses were carried out. The distribution dynamics was analysed by comparing all known localities of the Corispermum species in two time periods: by 1990, and from 1991 to the present. Analysis of the herbarium material confirmed that currently there are four species in the Baltic States: Corispermum hyssopifolium, C. declinatum, C. intermedium and C. pallasii. The only endemic species to the Eastern Baltic Region, C. intermedium, is considered as typical for annual vegetation on embryonic shifting dunes and other coastal habitats. In Lithuania, this species is considered extinct or almost extinct, as has not been found for more than 30 years, only its hybrids with C. pallasii. The largest and most stable population of C. intermedium has been found on the eastern shore of the Gulf of Rīga in Latvia. Other species such as ephemerophytic C. hyssopifolium and C. declinatum also prefer dry and disturbed habitats. Both have become less frequent in recent years. However, potentially invasive C. pallasii has been observed in the region with increasing distribution dynamics. The Estonian and Latvian herbaria analysis confirmed that all specimens previously identified as C. algidum after re-examination were identified as C. pallasii or C. intermedium and more often as hybrid C. intermedium × C. pallasii.

Checklist of Pyrenean alpine-stage macrofungi

Macrofungi from the alpine stage of the Pyrenees are poorly known. In this paper we first describe the alpine habitats of this mountain chain, then provide an overview with bibliography for all known taxa, with information on distribution and habitat. In addition to the 214 taxa of macrofungi previously known from the Pyrenees, 83 new taxa are reported from the French side of the Pyrenees. The total number of taxa reported for the alpine stage of the Pyrenees is now 297, of which 19 are Ascomycetideae, 260 Agaricomycetideae, 11 Gasteromycetideae and 7 Aphyllophoromycetideae. The genera richest in species are: Inocybe (53 taxa), Entoloma (41 taxa), Cortinarius (36 taxa), Hygrocybe ss. lato (20 taxa) and Melanoleuca (12 taxa). Of the 297 taxa reported, 103 are true arctic-alpine fungi.