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Seasonal dynamics of sediment in the Ciemiega River

100%

Debicki R., Glinski P., Kuczynski A.

Zeszyty Problemowe Postępów Nauk Rolniczych

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1996

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tom 436

Dynamics of sediment amount in the Ciemiega river water during three months of the 1996 vegetative period and its comparison with similar data from 1975 are discussed in this paper. A spectrophotometric method was used to determine water turbidity as a measure of sediment concentration in water.

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Seasonal dynamics of Ceratophyllus sciurorum sciurorum [Schrank, 1803] [Siphonaptera] in Slovakia

100%

Cyprich D., Spitalska E., Krumpal M.

Wiadomości Parazytologiczne

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2001

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tom 47

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nr 1

The authors pay attention to an occurrence of the taxon Ceratophyllus sciurorum sciurorum (Schrank, 1803) (Siphonaptera) in Slovakia during the whole season. The curve of occurrence this taxon of fleas has showed two high points. The first top has been achieved in April and second one followed in October. In December the authors have noticed a period and named it "cocoon block". This course of the curve has been found at the species from family Myoxidae, mostly. On the other hand, the course of curve of the birdboxes nesters has the opossite position, the high points have been recorded in autumn. A conspicuous differences has been probably caused by different biology of nesters of Myoxidae and birds in boxes. The ratio of males to females these ecological groups of hosts was different, too.

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The methane emission measurements using relaxed Eddy technique - preliminary results from Rzecin wetland

86%

Chojnicki B. H., Siedlecki P., Rinne J., Urbaniak M., Juszczak R., Olejnik J.

Acta Agrophysica. Rozprawy i Monografie

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2010

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nr 2[179]

4

Inter annual and seasonal dynamics in amino acid, mineral and vitamin composition of Epinephelus diacanthus (Valenciennes, 1828)

86%

Chakraborty K., Joseph D., Chakkalakal S. J.

Journal of Biology and Earth Sciences

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2014

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tom 04

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nr 1

5

Air temperature and ground level ozone concentration in submountain beech forest [Western Carpathians, Slovakia]

86%

Kellerova D., Janik R.

Polish Journal of Ecology

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2006

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tom 54

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nr 3

The seasonal dynamics of ozone concentration and air temperature for an open and a forest plots on Ecological Experimental Site (EES) was studied. The EES in Western Carpathians (Central Slovakia) is situated in submountain beech forest on 500 m a.s.l. in Kremnické vrchy Mts. The measurements (passive method) were realized for 1999–2003 years. The mean monthly values of concentration of ground level ozone follow a natural course (range 34–60 μg m⁻³), with one or two peaks in the growing season. No significant difference between open area and forest stand was found. The daily critical limit of 65 μg m⁻³ was exceeded eight times. The exceeded values of the ozone concentration are influenced by climate factors, primarily air temperature. Longrange transport of pollutants influence them to greater extent that it was supposed initially. The annual mean ozone concentration corresponds to the situation in the whole Central-European region. The values measured in submountain beech forests were however lower compared to the industrial agglomerations.

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Organic matter in a lowland river of strongly modified discharge. 1. Seasonal dynamics of benthic and transported organic matter in diverse habitats - response of the benthofauna

86%

Dukowska M., Grzybkowska M., Szczerkowska E., Tszydel M.

Acta Agrophysica

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2003

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tom 01

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nr 3[88]

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Modelling of the seasonal dynamics of bird migration

86%

Busse P.

The Ring

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1996

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tom 18

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nr 1-2

8

Do seasonal dynamics influence traits and composition of macrobenthic assemblages of Sundarbans Estuarine System, India?

72%

Bhowmik M., Mandal S.

Oceanologia

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2021

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tom 63

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nr 1

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Seasonal dynamics of gastrointestinal nematode infections of goats and emergence of ivermectin resistance in Haemonchus contortus in Hubei Province, China

72%

Yuan W., Lu K., Li H., Liu J., He C., Feng J., Zhang X., Mao Y., Hong Y., Zhou Y., Lu J., Jin Y., Lin J.

Acta Parasitologica

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2019

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tom 64

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nr 3

10

Age structure and growth rate of Zonitoides nitidus (O. F. Müller, 1774) (Gastropoda: Pulmonata: Gastrodontidae)

72%

Kuznik-Kowalska E.

Folia Malacologica

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2011

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tom 19

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nr 1

Growth rate and age structure of Zonitoides nitidus (O. F. Müller) were studied based on monthly samples from a population in Muszkowice (SW. Poland). The life cycle is probably a three-year cycle: juveniles hatch from June till October, and winter over at a size of 2.0–4.5 whorls. The growth rate is ca. 0.5–1.0 whorl/month.

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Coprophilous histerid beetle community (Coleoptera: Histeridae) of western Poland

72%

Bajerlein D.

Polish Journal of Entomology

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2009

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tom 78

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nr 3

Results of the first study on species composition, abundance and seasonal dynamics of histerid beetles inhabiting dung in western Poland are presented. Beetles were sampled over two years by using pitfall traps. The 14 species collected were dominated by Margarinotus carbonarius which made up almost 60% of all recorded specimens. Less numerous was Saprinus aeneus (30%). Histerid beetles were observed since April till October. Most recorded specimens were observed during spring.

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Spatial and temporal habitat distribution of spiders in a farmland mosaic

72%

Kozakiewicz M., Merriam G.

Bulletin of the Polish Academy of Sciences. Biological Sciences

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1995

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tom 43

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nr 3-4

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Seasonal dynamics of phytoplankton in the inner Neva Estuary in the 1980s and 1990s

72%

Nikulina V. N.

Oceanologia

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2003

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tom 45

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nr 1

The phytoplankton in the inner Neva Estuary is described from data obtained from 1996 to 2000.T he seasonal dynamics of the phytoplankton biomass are characterized by a bimodal curve with a summer maximum.T he average seasonal biomass was approximately 3 mg l−1, the maximum biomass was 8–11 mg l−1. The species composition and quantitative parameters were compared to those observed in the 1980s.A notable, nearly 1.5–2 fold, increase in the biomass in the summer–autumn period and the predominance of Oscillatoria species among the blue-green algae were observed.A decline in the nutrient load in the water body at the end of the 1990s appeared to be insufficient to bring about a decrease in the proportion of Oscillatoria algae in the total species composition or a decline in the biomass of the entire phytoplankton community. In 2000 a certain change in the structural composition of the phytoplankton complex was noted.S pecies that had been predominant in the 1980s and had lost their advantage in the early 1990s, regained their earlier status.

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Parasites of chaffinch [Fringilla coelebs] population. Part 2. Blood parasites

72%

Pawelczyk A., Gryczynska A., Mazgajski T. D.

Wiadomości Parazytologiczne

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2003

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tom 49

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nr 1

Blood parasites of Chaffinches caught from June to October near Łuknajno Lake (Mazurian Lakeland) were studied. Only parasites belonging to the genera Haemoproteus were found. A decrease in prevalence as the season progressed was observed. No differences in blood parasite infections in relation to the sex of the birds were found. Also males body weight was not affected by the presence of parasites.

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Seasonal changes in macrofaunal feeding groups associated with Nuphar lutea [L.] Sm.leaves in a small eutrophic lake

72%

Kornijow R., Scibior R.

Polish Journal of Ecology

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1999

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tom 47

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nr 2

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Seasonal dynamics of: the pea aphid, Acyrthosiphon pisum (Harris), its natural enemies the seven spotted lady beetle Coccinella septempunctata Linnaeus and variegated lady beetle Hippodamia variegata Goeze, and their parasitoid Dinocampus coccinellae (Schrank)

58%

Soleimani S., Madadi H.

Journal of Plant Protection Research

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2015

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tom 55

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nr 4

Two important lady beetle species commonly found in alfalfa fields in Iran are the variegated lady beetle Hippodamia variegata Goeze and the seven spotted lady beetle Coccinella septempunctata (Linnaeus, 1758) (Coleoptera: Coccinellidae). These two species attack many aphid species including the pea aphid, Acyrthosiphon pisum (Harris) (Hemiptera: Aphididae). In this study, the seasonal population changes of A. pisum, H. variegata, C. septempunctata and the parasitoid, Dinocampus coccinellae (Schrank) (Hymenoptera: Braconidae) were studied in alfalfa fields in the 2012 and 2013 seasonal periods. The highest ladybird densities were noted on July 5, 2012 and on September 6, 2013 (17.2±2.8 and 13.4±1.6) individuals per 20 sweeps, respectively. Parasitism rates by D. coccinellae ranged from approximately 3 to 6% in two subsequent years, respectively. Parasitism was higher early in the growing season. Most parasitised ladybirds were females. There was no significant relationship between the temperature and relative humidity with pea aphid populations, although the aphid populations declined during the hot summer period. In contrast, the relationship between temperature and the H. variegata population was significant and positive in both years of the study. It has been shown that these lady beetle species have a major role in reducing the pea aphid populations in alfalfa fields. Due to the relatively low percentage of field parasitism by D. coccinellae, this parasite might not reduce the biocontrol efficiency of lady beetle species.

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Seasonal development of Vallisneria spiralis L. in a heated lake

58%

Hutorowicz A., Hutorowicz J.

Ecological Questions

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2008

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tom 09

18

Seasonal dynamics in cambial activity and the formation of xylem and phloem in the branches of Cinnamomum camphora

58%

Dong M., Xu Y. M., Lin H., Li X. Q., Xia Q. Q.

Dendrobiology

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2016

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tom 75

The cambial activity and periodicity of secondary xylem and phloem formation have been less studied in tropical tree species than in temperate ones. Cambium activity is the only source of timber production. Studies on its activity and xylem formation can provide helpful data for dendrochronology and possible factors that control tree growth, the yield and quality of wood. Cinnamomum camphora is an important fast-growing tree for furniture and sculpture wood in South China. Its dynamics of cambial activity was not reported. During the growth season in 2011, five trees of Cinnamomum camphora plantation were monitored on the campus of Huazhong Agricultural University in central china (located on 113°41’ to 115°05’ E and 29°58’ to 31°22’ N). Sampling time was from 13, February 2011 to 13, February 2012. Some small stems of 15–20 cm length were selected to sample in the middle of 2–3 years old health branches in the central crown of these trees. The observational study found that the cambium of camphor trees was active from March to October and dormant from November to February. Onset of cambial cell division was observed in early March, one week after sprouting of new buds. The morphology of the cells and number of cell layers in the cambium zone varied throughout the year. In early March, cambium reactivated with the rising of temperature, the cell wall was relative thick. The number of cell layers increased from 2–3 in middle Feb. to 3–5. In June, the number of cell layers in cambium reached the maximum of 5–7 in a radial direction. In mid March, phloem cells began to differentiate, followed by xylem three weeks later. The number of cell layers in immature phloem and xylem increased dramatically before mid June and the increment of cell layers in xylem was almost fifth times of phloem in the differentiating process. The phloem cells mainly stopped dividing new cells in end of October, but xylem cells were still in the activity a week later. The annual activities of cambium was in accordance with the air mean temperature change in 2011–2012. The results showed that the cambial activity and formation of xylem and phloem were related to the environmental factors, especially the temperature.

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Effect of cattle liquid manure fertilization and disinfectant on seasonal dynamics of Oribatida (Acari) in a permanent lowland meadow in Poland

58%

Graczyk R., Seniczak S., Wasinska-Graczyk B.

Biological Letters

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2010

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tom 47

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nr 2

20

Migration dynamics and directional preferences of passerine migrants in Azraq (E Jordan) in spring 2008

58%

Stepniewska K., El-Hallah A., Busse P.

The Ring

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2011

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tom 33

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nr 1-2

Ograniczanie wyników

Seasonal dynamics of sediment in the Ciemiega River

Seasonal dynamics of Ceratophyllus sciurorum sciurorum [Schrank, 1803] [Siphonaptera] in Slovakia

The methane emission measurements using relaxed Eddy technique - preliminary results from Rzecin wetland

Inter annual and seasonal dynamics in amino acid, mineral and vitamin composition of Epinephelus diacanthus (Valenciennes, 1828)

Air temperature and ground level ozone concentration in submountain beech forest [Western Carpathians, Slovakia]