Wyniki wyszukiwania

1

Shoreline changes of the Lebsko Lake in the light of lithological characters and malacological analysis

100%

Rozalski D.

Folia Malacologica

|

1998

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tom 06

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nr 1-4

2

Grassland ecosystems in the varied hydrological and ecological conditions of the Kulawa River Valley

100%

Prajs B., Antkowiak W.

Polish Journal of Environmental Studies

|

2010

|

tom 19

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nr 1

131-139

Grasslands in the Kulawa river valley (ca. 10 ha) were subject to land improvement in the 19th century, and remnants of the hydrotechnical system and overgrown ditches are still present. This study aims to: (1) evaluate the present meadow ecosystems; (2) predict their changes under the influence of the planned restoration of the hydrotechnical system and (3) compare results of various methods: phytoindication, phytosociological, floristic, and principal component analysis. The applied methods complemented one another. The devastation of the hydrotechnical system and the lack of utilization of the grasslands have led to either drying or waterlogging of the soil, and to changes in vegetation. The plant communities that have developed there represent the intermediate stage of regressive succession, and belong to the orders Arrhenatheretalia, Molinietalia, and the class Phragmitetea. Particularly the patches growing on relatively dry, strongly decomposed peaty soil have lost the characteristics of damp meadows. Meadow species have declined there, and nitrophilous species have replaced them. Only a local depression without outflow, which was earlier drained, is now waterlogged again, with a mosaic of calcareous fen, meadow, and marsh vegetation, including large populations of 11 species that are rare, protected, or listed as indicator species for the Natura 2000 habitat 7210*. Results of this study indicate that the present conditions in the waterlogged depression should be preserved. In contrast, the dry patches should be irrigated and subject to extensive farming.

3

Evaluation of meat and milk from sheep of different breeds and their crosses, kept under ecological conditions

100%

Kawecka A., Paraponiak P.

Annals of Animal Science

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2006

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tom 06

|

nr 2

4

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Morphometric variations in white seabream Diplodus sargus (Linneus, 1758) populations along the Tunisian coast

100%

Kaoueche M., Bahri-Sfar L., Hammami I., Ben Hassine O. K.

Oceanologia

|

2017

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tom 59

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nr 2

Morphometric characters of the white seabream Diplodus sargus (Linnaeus 1758) were compared among samples collected from six marine and lagoon sites along the Tunisian coast to elucidate the impact of the geographical barrier of the Siculo-Tunisian Strait and/or the lagoon environment in the morphological variation among the Tunisian white seabream population. Two morphometric descriptors (twenty-five Truss elements and six traditional measurements) were used to study the pattern of this morphological variation. Univariate analysis of variance revealed significant differences (P < 0.001) for both traditional and Truss variables. Multivariate analysis using the two morphometric descriptors detected a clear variation in the body shape between D. sargus populations along the Tunisian coast. All these analyses showed the distinctness of the sample from El Biban lagoon compared to the remaining ones. This discrimination was due to the head and the peduncle of the studied fish. Varying degrees of differences were also observed between northern and southern samples, and between the lagoon and the marine samples. The morphologi- cal variations of the head explain also the discrimination between the different lagoons samples. Observed morphological heterogeneity seems to be related to the impact of ecological factors.

5

Conditions of pro-ecological activities of bioeconomy sector enterprises in the environmentally valuable areas of the Lubelskie Voivodeship

100%

Zwolinska-Ligaj M.

Economic and Regional Studies

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2016

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tom 09

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nr 4

Subject and purpose of work: The aim of the study is to make a characteristic and evaluation of the conditions of environmental activities of companies representing the bioeconomy sector located in environmentally valuable areas of Lublin Voivodeship. The study also identifies key factors and barriers to eco-activity from the perspective of the surveyed companies. Materials and methods: To achieve the goal a review of literature and surveys were conducted in 2013 in 30 communes of the Lublin province (Poland), characterized by the highest level of the indicator of ecological value. The study used the method of diagnostic survey with a questionnaire interview. Results: Environment-friendly activities undertaken in the studied companies were conditioned largely by economic factors and the need to adapt the organization to meet the standards of environmental protection. Among the problems concerning determinants of eco-friendly activity entrepreneurs pointed high cost of adapting the organization to the increasingly stringent environmental legislation and organizational difficulties to adapt to these regulations. Conclusions: Bioeconomy sector companies operating in environmentally valuable areas are characterized by mutual harmonious relationship with the local natural environment. In the study group, there is a need to promote awareness of the possibility of external support for environmental activities.

6

Presence of potential toxin producing micromycetes on fruit and berries

100%

Stakeniene J., Lugauskas A., Levinskaite L.

Bulletin of the Polish Academy of Sciences. Biological Sciences

|

2001

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tom 49

|

nr 4

7

Changes in the life strategy of Carex digitata [ Cyperaceae ] in disturbed woodland communities: II. Demography

100%

Laska G.

Fragmenta Floristica et Geobotanica

|

1996

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tom 41

|

nr 1

8

Different growth patterns of Picea schrenkiana subsp. tianshanica (Rupr.) Bykov and Juglans regia L. coexisting under the same ecological conditions in the Sary-Chelek Biosphere Reserve in Kyrgyzstan

84%

Magnuszewski M., Bijak S., Orozumbekow A., Howe B., Musuraliev K., Zasada M., Bronisz K., Bronisz A.

Dendrobiology

|

2015

|

tom 73

The main aim of the study was to compare the radial growth of Persian walnut and Schrenk spruce trees growing under the same ecological conditions in the Sary-Chelek range of the Tien-Shan Mountains, as well as to analyse the response of these species to the selected climate factors in line with the altitude gradient. Four study plots were established at the altitude of 1350, 1400, 1450 and 1500 m a.s.l. Results indicated that (1) walnut and spruce in the Sary-Chelek Biosphere Reserve have different patterns of radial increment and reaction to climate factors, despite growing in the same habitat, (2) spruce radial growth responded to low precipitation and low temperature during the April to September period of the previous year; (3) walnut radial increment patterns varied significantly with changes in altitude, whereas spruce patterns did not; and (4) walnut radial increment patterns responded positively to high temperature during contemporary growing season and to precipitation during the prior growing season. In addition, it was noted that precipitation during the contemporary growing season could negatively influence growth.

9

Ecomorphological evaluation of the Lyna River along the Kotowo-Ardapy section

84%

Grzybowski M., Endler Z.

Quaestiones Geographicae

|

2012

|

tom 31

|

nr 1

10

Anabaena poulseniana J. Boye Petersen – a species new to Polish flora

84%

Richter D.

Oceanological and Hydrobiological Studies

|

2013

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tom 42

|

nr 3

11

Phytoplankton and the physicochemical background in an assessment of the ecological and trophic conditions in vendace-type lakes

84%

Napiorkowska-Krzebietke A., Stawecki K., Pyka J. P., Zdanowski B., Zebek E.

Journal of Elementology

|

2016

|

tom 21

|

nr 1

This study focused on the phytoplankton and environment relationships as well as on the ecological and trophic conditions of lakes inhabited by coregonid fish. Studies were carried out in deep and stratified vendace-type lakes called Lake Pluszne and Lake Łańskie (the Olsztyn Lake District, north-eastern Poland) in 2007-2008. Ecological and trophic conditions were determined on the basis of the phytoplankton multi-metric PMPL and Trophic State Index. Both lakes were characterized by a similar thermal and mictic regime, with the occurrence of hypolimnetic oxygen deficits. They were classified as hydrocarbonate-calcium type and medium-sized eutrophicated water bodies. According to the integrated trophy assessment, proposed in this research, the final Trophic State Index TSIAV indicated meso-eutrophy of both lakes, although the phytoplankton-based PMPL indicated that the ecological potential in Lake Łańskie was good and less than good - due to large cyanobacteria biomasses - in Lake Pluszne. The actual loads of phosphorus and nitrogen significantly exceeded permissible levels, especially in Lake Łańskie (5-fold at the most of the P content), at similar morphometric and sedimentation conditions in both lakes. However, more intensive water-exchange rate and more favorable conditions for phosphorus runoff in Lake Łańskie could limit the phytoplankton growth, especially cyanobacteria. Summing up, better oxygen conditions and less abundant phytoplankton suggested that Lake Łańskie had more suitable conditions for coregonids during the surveyed period than Lake Pluszne, where the vendace biomass has recently decreased drastically.

12

Ecological condition of small water reservoirs of Wdzydze Landscape Park (northern Poland) based on meiobenthos assemblages analyzes

84%

Wojtasik B.

Teka Komisji Ochrony i Kształtowania Środowiska Przyrodniczego

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2013

|

tom 10

13

Application of biological preparations to spring oilseed rape under ecological condition

84%

Borovko L.

Rośliny Oleiste - Oilseed Crops

|

2005

|

tom 26

|

nr 2

361-368

14

Bird fauna and populations of raised bogs of Belorussia

84%

Kozlov V. P., Kuzmenko V. Y.

The Ring

|

1993

|

tom 15

|

nr 1-2

15

Biochemical changes in an aquatic macrophyte Spirodela polyrhiza [L.] growing in different ecological conditions at Bhagalpur, Bihar [India]

84%

Nayak M. R., Choudhary S. K.

Polskie Archiwum Hydrobiologii

|

1997

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tom 44

|

nr 3

16

Resistance of selected culturable fishes to ecological conditions of differently loaded ponds under the fish-cum-poultry farming system

84%

Njoku D. C.

Acta Hydrobiologica

|

1997

|

tom 39

|

nr 3-4

Ponds integrated at the rate of 1000 broiler chicken per hectare, with monthly excreta load of 4000 kg ha-1 provided the optimal conditions for fish. At 1500 chicken per hectare only Oreochromis niloticus (L.) was significantly susceptible (P<0.05) to the habitat conditions (mortality rate 18%). At higher levels of poultry integration, the order of resistance to deteriorated conditions was Clarias>Heterotis>Heterobranchus>Channa>Gymnarchus>Oreochromis. The use of Channa (19% mortality), Gymnarchus (41% mortality), and Oreochromis (50% mortality) are considered counter-productive at the 2000 chicken per hectare.

17

Helminth infections - permanent health problem and its ecological conditions

84%

Mizgajska H.

Wiadomości Parazytologiczne

|

1998

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tom 44

|

nr 3

18

Biomonitoring of the Lyna River [North Poland] in the years 1974-2006 on the basis of the benthic macroinvertebrates

84%

Koprowska L., Jablonska-Barna I.

Oceanological and Hydrobiological Studies

|

2007

|

tom 36

|

nr Suppl.4

19

Benthic foraminiferal assemblages and biotopes in a coastal lake: the case study of Lake Varano (Southern Italy)

67%

Frontalini F., Margaritelli G., Francescangeli F., Rettori R., Armynot du Chatelet E., Coccioni R.

Acta Protozoologica

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2013

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tom 52

|

nr 3

20

The occurrence of aphids and their natural enemies on juniper shrubs in the area of Lublin

67%

Jaskiewicz B.

Electronic Journal of Polish Agricultural Universities. Series: Horticulture

|

2003

|

tom 06

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nr 1

Ograniczanie wyników

Shoreline changes of the Lebsko Lake in the light of lithological characters and malacological analysis

Grassland ecosystems in the varied hydrological and ecological conditions of the Kulawa River Valley

Evaluation of meat and milk from sheep of different breeds and their crosses, kept under ecological conditions

Morphometric variations in white seabream Diplodus sargus (Linneus, 1758) populations along the Tunisian coast

Conditions of pro-ecological activities of bioeconomy sector enterprises in the environmentally valuable areas of the Lubelskie Voivodeship

Presence of potential toxin producing micromycetes on fruit and berries

Changes in the life strategy of Carex digitata [ Cyperaceae ] in disturbed woodland communities: II. Demography

Different growth patterns of Picea schrenkiana subsp. tianshanica (Rupr.) Bykov and Juglans regia L. coexisting under the same ecological conditions in the Sary-Chelek Biosphere Reserve in Kyrgyzstan

Ecomorphological evaluation of the Lyna River along the Kotowo-Ardapy section

Anabaena poulseniana J. Boye Petersen – a species new to Polish flora

Phytoplankton and the physicochemical background in an assessment of the ecological and trophic conditions in vendace-type lakes

Ecological condition of small water reservoirs of Wdzydze Landscape Park (northern Poland) based on meiobenthos assemblages analyzes

Application of biological preparations to spring oilseed rape under ecological condition

Bird fauna and populations of raised bogs of Belorussia

Biochemical changes in an aquatic macrophyte Spirodela polyrhiza [L.] growing in different ecological conditions at Bhagalpur, Bihar [India]