Acidification and the structure of crustacean zooplankton in mountain lakes: The Tatra Mountains (Slovakia, Poland)

Biologia ◽  
2006 ◽  
Vol 61 (18) ◽  
Author(s):  
Zuzana Hořická ◽  
Evžen Stuchlík ◽  
Igor Hudec ◽  
Martin Černý ◽  
Jan Fott
Keyword(s):  
Species Composition ◽  
Daphnia Pulex ◽  
Crustacean Zooplankton ◽  
Tatra Mountains ◽  
Daphnia Longispina ◽  
Forest Zone ◽  
Lake Ecosystems ◽  
Chydorus Sphaericus ◽  
Ceriodaphnia Quadrangula ◽  
High Concentrations

AbstractSpecies composition of planktonic Crustacea in 102 lakes in the West and High Tatra Mountains, studied during the peak of anthropogenic acidification (1978–1996), is presented in this work. Zooplankton of the Tatra lakes have been studied since the middle of the 19th century, which later enabled the recognition of lake acidification and the assessment of its effect on the plankton community of lake ecosystems. In the pre-acidification period, the distribution of zooplankton was determined namely by the lake altitude and orientation (north vs. south) and by the catchment character. Crustacean zooplankton in larger lakes consisted of a limited number of species, with Acanthodiaptomus denticornis and Daphnia longispina dominating lakes in the forest zone, and Arctodiaptomus alpinus, Cyclops abyssorum, Daphnia longispina, Daphnia pulicaria, and Holopedium gibberum dominating lakes in the alpine zone. Ceriodaphnia quadrangula, Daphnia obtusa, Daphnia pulex, and Mixodiaptomus tatricus occurred in lakes with high concentrations of dissolved organic matter and in strongly acidified waters. Anthropogenic acidification has caused drastic changes in both the chemistry and biology of the Tatra lakes. Based on their status during the acidification peak, lakes were divided into three categories: non-acidified (with no change in the species composition of crustacean zooplankton due to the acidification), acidified (planktonic Crustacea disappeared in lakes with meadow-rocky catchments), and strongly acidified lakes where original Crustacea in meadow-rocky catchment lakes disappeared and were replaced by populations of the acid-tolerant littoral species Acanthocyclops vernalis, Chydorus sphaericus, and Eucyclops serrulatus. The acidification-induced processes of oligotrophication and toxicity of aluminium played a key role in the extinction of species. Despite the first signs of biological recovery observed in the early 2000s, acidification remains the most important factor governing the structure of plankton in the Tatra lakes.

scholarly journals CRUSTACEA OF THE POND OF TOMASHEV KOLOK IN THE SAMARA CITY

2017 ◽  
Vol 19 (3) ◽  
pp. 154-160
Author(s):  
A.V. Kireev ◽  
Yu.L. Gerasimov
Keyword(s):  
Species Composition ◽  
Seasonal Dynamics ◽  
Daphnia Longispina ◽  
Crustacean Species ◽  
Chydorus Sphaericus ◽  
Urban Pond ◽  
Ceriodaphnia Reticulata

The species composition and seasonal dynamics of quantity of Crustacean populations in small urban pond is studied. The list of 15 Crustacean species is presented. Daphnia longispina, Ceriodaphnia reticulata and Cyclops copepodits dominate in the first half of summer to July, Chydorus sphaericus dominate in August and September.

scholarly journals Vegetation changes in boreo–nemoral forest stands depending on soil factors and past land use during an 80 year period of no human impact

2016 ◽  
Vol 46 (3) ◽  
pp. 376-386 ◽  
Author(s):  
Ilze Kokarēviča ◽  
Guntis Brūmelis ◽  
Raimonds Kasparinskis ◽  
Arta Rolava ◽  
Oļģerts Nikodemus ◽  
...  
Keyword(s):  
Land Use ◽  
Species Composition ◽  
Plant Communities ◽  
Agricultural Land ◽  
Deciduous Forest ◽  
Tree Canopy ◽  
Temperate Deciduous Forest ◽  
Soil Factors ◽  
Nature Protection ◽  
Forest Zone

Information on the long-term changes in plant communities that occur without human interference is limited, due to insufficient studies where vegetation can be resurveyed. In 1912, a strict nature protection reserve, with non-intervention management, was established on Moricsala Island in Latvia, located in the boreo–nemoral forest zone. Prior to establishment of the nature reserve, part of the island area was used for agriculture. The island is now covered almost entirely by forest dominated by Quercus robur L. and Tilia cordata Mill. on sandy soils. Resurvey was conducted in 2011 in 17 plots in which tree layers and the understory vegetation had been described in 1930. The plots were classified into two groups based on tree species composition in 1930 to determine changes in species composition. Differences in understory and tree canopy composition between these groups persisted over the period between the studies, in relation to soil factors and past stand history. Considerable turnover of species occurred, with a decrease of species typical of open habitats and replacement by species typical of nemoral (temperate deciduous) forest plant communities. In the past, Q. robur had likely established in open habitats created by agricultural land use or past fire but is presently not regenerating in the understory.

scholarly journals Cladocera from the Sediment of High Arctic Lake in Svalbard (Norway)

2021 ◽  
Vol 23 (2) ◽  
pp. 13-20
Author(s):  
Vartika Singh ◽  
Sophia Barinova
Keyword(s):  
Hot Spots ◽  
Surface Sediments ◽  
Daphnia Pulex ◽  
High Arctic ◽  
Freshwater Ecosystems ◽  
Climate Conditions ◽  
Chydorus Sphaericus ◽  
Cladoceran Remains ◽  
The Impact ◽  
Palaeoenvironmental Conditions

Abstract The High Arctic Region’s freshwater ecosystems serve as hot spots to study the impact of extreme warming conditions on the biota. The cladoceran remains have been recovered from the surface sediments of a non-marine water body near Ny-Alesund, Svalbard, Norway. The cladoceran (crustaceans) belongs to the Chydorus sphaericus group Frey, 1980 and Daphnia pulex Leydig, 1860. The ecology of the species suggests that they lived in a well-developed ecosystem with Water Quality Class 3. This study has implications for understanding the response of the present-day biota experiencing the changing climate conditions and using these remains for assessing palaeoenvironmental conditions.

scholarly journals Predation follows competition in depth selection behaviour of Cladocera in a deep lake (E Poland)

2009 ◽  
Vol 46 (1) ◽  
pp. 29-36 ◽  
Author(s):  
Małgorzata Adamczuk
Keyword(s):  
Habitat Segregation ◽  
Daphnia Longispina ◽  
Deep Lake ◽  
Migration Patterns ◽  
Chydorus Sphaericus ◽  
Predation Avoidance ◽  
Small Depth ◽  
Bosmina Coregoni ◽  
Diaphanosoma Brachyurum ◽  
The Vertical Distribution

Predation follows competition in depth selection behaviour of Cladocera in a deep lake (E Poland)Observations of the vertical distribution of Cladocera in the pelagic zone of the deep Lake Piaseczno (38.8 m) focused on 6 species:Diaphanosoma brachyurum, Daphnia longispina, D. cucullata, Bosmina coregoni, B. longirostris, andChydorus sphaericus.The animals displayed clear depth preferences, and their migration patterns were limited to small depth amplitudes. The results show that vertical habitat segregation of cladocerans in the lake consists mostly in the mechanism of competition for accessible food resources, rather than in the mechanism of predation avoidance.

scholarly journals Ground beetles of the Ukraine (Coleoptera, Carabidae)

ZooKeys ◽  
2011 ◽  
Vol 100 ◽  
pp. 503-515 ◽  
Author(s):  
Alexander Putchkov
Keyword(s):  
Species Composition ◽  
Species Conservation ◽  
Steppe Zone ◽  
Ground Beetles ◽  
Forest Steppe ◽  
Forest Zone ◽  
Crimean Mountains ◽  
Carpathian Region ◽  
Conservation Measures ◽  
Southern Ukraine

A review of the ground beetles of the Ukrainian fauna is given. Almost 750 species from 117 genera of Carabidae are known to occur in the Ukraine. Approximately 450 species of ground beetles are registered in the Carpathian region. No less than 300 species of ground beetles are found in the forest zone. Approximately 400 species of Carabidae present in the forest-steppe zone are relatively similar in species composition to those in the forest territories. Some 450 species of Carabidae are inhabitants of the steppe zone. Representatives of many other regions of heterogeneous biotopes such as forest, semi desert, intrazonal, etc. can be found in the steppe areas. The fauna of Carabidae (ca. 100 species) of the lowlands of southern Ukraine (sandy biotopes), situated mostly in the Kherson region, is very peculiar. The fauna of the Crimean mountains contains about 300 species. Conservation measures for the Carabidae are discussed.

scholarly journals Fungi associated with disease symptoms on Pinus mugo needles in the Polish Tatra Mountains

2021 ◽  
Vol 66 (1) ◽  
pp. 53-65
Author(s):  
Czesław Bartnik ◽  
Tadeusz Kowalski ◽  
Piotr Bilański ◽  
Toamsz Zwijacz-Kozica
Keyword(s):  
Species Composition ◽  
Disease Process ◽  
Morphological Features ◽  
Pinus Mugo ◽  
Tatra Mountains ◽  
Disease Symptoms ◽  
Molecular Analyses ◽  
Alpine Zone ◽  
Isolated Species

Dwarf mountain pine, Pinus mugo, is an important component of the subalpine and alpine zone in Europe. For several years, in one of the natural areas of the occurrence of this species in the Polish Tatras, an intensified decline of the assimilation apparatus has been observed. The studies conducted in 2016–2020 were aimed at determining the types of disease symptoms occurring on P. mugo needles and at identifying the species composition of fungi within symptomless and diseased needles. We isolated 57 taxa from 6 types of disease symptoms and from needles without disease symptoms, identified on the basis of morphological features and molecular analyses. Absolute parasites were represented by only one species of Coleosporium senecionis, which was identified by the aecium stage. The genus Lophodermium was represented by three species: L. conigenum, L. corconticum and L. pini-mugonis. So far, L. corconticum was known only from the Karkonosze Mountains in Poland, and L. pini-mugonis from the German Alps. In addition, the more frequently isolated species included: Sydowia polyspora, Hendersonia sp., Nemania serpens, Leptomelanconium allescheri, Cladosporium spp., Biscogniauxia nummularia and Alternaria spp. Some taxa were associated with only one type of disease symptom, while some species of fungi were found to be associated with different symptoms. Twelve species of fungi were isolated from living symptomless needles, some of which were subsequently found in association with nectrotic areas on needles, e.g., Lophodermium corconticum, L. conigenum and Leptomelanconium allescheri. L. pinastri has not been found in the present studies. In the discussion, an attempt was made to assess the role of some of the identified species of fungi in causing the disease process of P. mugo needles.

scholarly journals The study of the zoobenthos of the Tsraudon river basin (the Terek river basin)

2020 ◽  
Vol 169 ◽  
pp. 03006
Author(s):  
Ia E. Dzhioeva ◽  
Susanna K. Cherchesova ◽  
Oleg A. Navatorov ◽  
Sofia F. Lamarton
Keyword(s):  
Species Diversity ◽  
Species Composition ◽  
River Basin ◽  
Mountain Forest ◽  
Forest Zone ◽  
Distribution Boundary ◽  
The Family ◽  
Species Composition And Distribution

The paper presents data on the species composition and distribution of zoobenthos in the Tsraudon river basin, obtained during the 2017-2019 research. In total, 4 classes of invertebrates (Gastropoda, Crustacea, Hydracarina, Insecta) are found in the benthic structure. The class Insecta has the greatest species diversity. All types of insects in our collections are represented by lithophilic, oligosaprobic fauna. Significant differences in the composition of the fauna of the Tsraudon river creeks and tributary streams have been identified. 7 families of the order Trichoptera are registered in streams, and 4 families in the river. It is established that the streamlets of the family Hydroptilidae do not occur in streams, the distribution boundary of the streamlets of Hydropsyche angustipennis (Hydropsychidae) is concentrated in the mountain-forest zone. The hydrological features of the studied watercourses are also revealed.

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