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Tytuł:
Abundance and species composition of plankton in the Gulf of Gdańsk near the planned underwater outfall of the Gdańsk-Wschód (Gdańsk-East) sewage treatment plant
Autorzy:
Zmijewska, M.I.
Niemkiewicz, E.
Bielecka, L.
Powiązania:
https://bibliotekanauki.pl/articles/48867.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
biomass
abundance
plankton
underwater outfall
Baltic Sea
phytoplankton
Gdansk city
coastal area
treatment plant
zooplankton
Gdansk Gulf
Vistula River
distribution
Opis:
The aim of this paper is to determine the current biological state of life in the pelagic zone of the Gulf of Gdańsk in relation to the planned start-up of an underwater outfall which will discharge sewage from the Gdańsk–Wschód (Gdańsk–East) sewage treatment plant. The plankton material was collected during two research cruises in July and October 1998. The samples were taken at 15 stations in four profiles located near Wyspa Sobieszewska (Sobieszewo Island), perpendicular to the coastline. Both the taxonomic and numerical structure of phytoplankton and zooplankton were typical of the coastal area of the Gulf of Gdańsk. The species diversity depends on hydrological conditions, mainly input from the River Wisła (Vistula). The abundance and biomass of phytoplankton in 1998 were several times lower than in 1994 and 1995 in the area off Górki Wschodnie, the profile located closest to the planned construction site. This could have been caused by generally lower temperatures in 1998 in comparison to previous years. In the investigated area only traces of algal eutrophication indicator species were noted. However, potentially toxic species were confirmed and were most abundant near the Wisła mouth. The highest concentrations of pelagic fauna occur in the shallowest area closest to the shoreline. Long-term observations of the dynamics of the variations in abundance and species composition indicate the increasing significance of one particular species – Acartia bifilosa.
Źródło:
Oceanologia; 2000, 42, 3
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Abundance frequency of plant species as animal feeds to determine ideal cattle grazing
Autorzy:
Yulianto, R.
Xuan, T.D.
Kawamura, K.
Lim, J.
Yoshitoshi, R.
Xinyan, F.
Zhe, G.
Powiązania:
https://bibliotekanauki.pl/articles/11556.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Opis:
The objectives of this study were to determine the dominant frequency of plant species, and provide useful information toward the conservation management of animal feed in grazing areas, Hiroshima, Japan. The numbers of plant species were 32 and 21 in spring and summer, respectively. The appearance frequency of plant species more than 50% in the spring, consist of Veronica arvensis (75.57%), Trifolium repens (73.86%), Paspalum dilatatum (69.32%), Lamium purpureum (68.75%), Trifolium dubium (65.34%), Cerastium glomeratum (63.64%), whereas in summer, it consists of Paspalum notatum (98.30%), Trifolium repens (81.25%), Paspalum dilatatum (78.98%), and Kyllinga brevifolia (74.43%). It was observed that the plant high of the plant species were 16.64 and 21.55 cm; vegetation cover rates were 77.18 and 81.36%; chlorophyll content were 41.72 and 36.28 mg/g Fw, and species numbers were 17.91 and 10.18, in spring and summer, respectively. Findings of this research propose that Trifolium repens (clover), Rumex japonicus (weed), and Paspalum dilatatum (grass) are dominant species in the studied areas that can be utilized as animal feeds.
Źródło:
International Letters of Natural Sciences; 2016, 58
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Arbuscular mycorrhizal fungi abundance, species richness and composition under the monocultures of five medicinal plants
Bogactwo i zróżnicowanie gatunkowe oraz dostępność propagul grzybów arbuskularnych w monokulturach pięciu roślin leczniczych
Autorzy:
Zubek, S.
Błaszkowski, J.
Seidler-Łożykowska, K.
Bąba, W.
Mleczko, P.
Powiązania:
https://bibliotekanauki.pl/articles/11542647.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Opis:
The presence of arbuscular mycorrhizal fungi (Glomeromycota, AMF) in soils may be crucial for sustainable agriculture. Although AMF impact on the performance and accumulation of therapeutic compounds of several medicinal plant species has been well documented, the investigations on the influence of medicinal plants being cultivated on AMF have been insufficiently studied. The effect of three-year monocultures of mycorrhizal (Hypericum perforatum, Levisticum officinale, Mentha × citrata subsp. citrata and Thymus vulgaris) and non-mycorrhizal (Chelidonium majus) medicinal plant species on AMF propagule abundance, species richness and composition was therefore examined. The AMF non-host plant species C. majus decreased the abundance of AMF propagules in the soil, whereas the mycorrhizal plants maintained the AMF propagule potential at the same level, however, they changed the composition of AMF species. The results showed that the choice of medicinal plant species, grown even for a relatively short period of time in a monoculture, can substantially alter the AMF potential of soils which in turn can influence the performance of other medicinal plants cultivated subsequently.
Obecność symbiotycznych grzybów arbuskularnych (Glomeromycota) w glebach może być istotna dla zrównoważonego rolnictwa. Chociaż wpływ tych mikroorganizmów na witalność i produkcję metabolitów wtórnych przez rośliny lecznicze był badany w ostatnich latach, niewiele wiadomo na temat oddziaływania uprawianych roślin leczniczych na te grzyby. Celem pracy było więc określenie wpływu trzyletniej uprawy mikoryzowych (Hypericum perforatum, Levisticum officinale, Mentha × citrata subsp. citrata i Thymus vulgaris) i niemikoryzowych (Chelidonium majus) gatunków roślin leczniczych na liczbę propagul, bogactwo oraz zróżnicowanie gatunkowe grzybów arbuskularnych. Uprawa C. majus spowodowała spadek liczby propagul tych mikroorganizmów w glebie. W przypadku roślin mikoryzowych dostępność propagul utrzymywała się na podobnym poziomie. Uprawiane rośliny miały jednak wpływ na skład gatunkowy grzybów arbuskularnych. Uprawa badanych roślin leczniczych na danym terenie, nawet przez stosunkowo krótki czas, wpływa na zmianę składu gatunkowego i dostępność propagul grzybów arbuskularnych w glebie, co w konsekwencji może mieć wpływ na witalność roślin leczniczych, zależnych od symbiozy mikoryzowej, uprawianych w przyszłości na tym terenie.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2013, 12, 5; 127-141
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Awifauna lęgowa Parku im. Ks. Józefa Poniatowskiego w Łodzi w latach 1966-2009
Breeding avifauna of Prince Joseph Poniatowski Park in Łódź in 1966-2009
Autorzy:
Janiszewski, Tomasz
Markowski, Janusz
Powiązania:
https://bibliotekanauki.pl/articles/970745.pdf
Data publikacji:
2006
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
urban park
breeding birds
long-term changes
breeding abundance
species richness
Łódź
park miejski
awifauna lęgowa
wieloletnie zmiany
liczebność
bogactwo gatunkowe
Opis:
During 1966-2009, in 13 seasons, breeding avifauna were counted in Prince J. Poniatowski Park (Łódź). The increase of species richness from 25 (1966) to 35 species (2009) was observed. The species started to breed in the Park were: Mallard Anas plathyrynchos, Sparrowhawk Accipiter nisus, Coot Fulica alra, Wood Pigeon Columba palumbus, Thrush Nightingale Luscinia luscinia, Song Thrush Turdus philom elos, Nuthatch Sitta europaea, Hawfinch Coccothraustes coccothrausles, Goldfinch Carduelis carduelis, Serin Serrinus serinus. Some species disappeared as breeder: Cuckoo Cuculus canorus, Pied Wagtail Molacilla alba, Wood Warbler Phylloscopus sibilatrix, Willow Warbler Phylloscopus trochilus, Marsh Tit Poecile palustris. The significant increase of breeding pairs was observed for: Blackbird Turdus merula. Blackcap Sylvia atricapilla, Great Tit Parus major. Blue Tit Cyanistes caeivleus, Finch Fringilla coelebs.
Źródło:
Acta Universitatis Lodziensis. Folia Biologica et Oecologica; 2006, Supplementum; 133-150
1730-2366
2083-8484
Pojawia się w:
Acta Universitatis Lodziensis. Folia Biologica et Oecologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Awifauna wodno-błotna środkowej Wisły w okresie lęgowym: wpływ działalności człowieka na rozmieszczenie, liczebność i bogactwo gatunkowe
Water and marsh birds of middle Vistula River during breeding season: the impact of human activities on the distribution, abundance and richness of species
Autorzy:
Bukaciński, Dariusz
Bukacińska, Monika
Buczyński, Arkadiusz
Powiązania:
https://bibliotekanauki.pl/articles/1964491.pdf
Data publikacji:
2011-06-30
Wydawca:
Uniwersytet Kardynała Stefana Wyszyńskiego w Warszawie
Tematy:
ptaki Wisły
zagrożenia awifauny rzek
regulacja rzek
pobór kruszywa
avifauna of vistula river
threats for riparian birds
river regulation
gravel and sand mining
Opis:
The inventory of birds was conducted in the years 2005-2010 on the Vistula River section between Dęblin (388 km of the river) and Podwierzbie (435 km of the river). The study area includes a southern section of the European Ecological Natura 2000 Site in Poland PLB140004 „Middle Vistula River Valley” (IBA, PL083). In most areas the Vistula flows here within unregulated or relatively little modified riverbed, having features of natural, lowland, braided river. Sandy islands and braid bars within the main channel, steep banks, and old riparian afforestation create the unique breeding habitats of the Vistula River Valley. Especially the river channel habitats provide suitable breeding sites for many rare bird species, constituting some of them the key-breeding sites. There are, however, fragments of several kilometers, where people transformed the Vistula River in a more visible way (Table 1). These are, among others: an urban section within Dęblin boundaries (km 388-393 of the river), a fragment adjacent to Kozienice Power Plant (km 421-426), and the area, where since 2007 gravel for the industry has been mining from the river bottom (km 426-431). The aim of this inventory was the comparison of richness and abundance of breeding bird species associated directly with the river channel on fragments mentioned above. It will allow us to estimate soberly how very the intensity of human utilization of the river affects the distribution of avifauna of the Vistula, determining the richness and abundance of valuable and/or endangered species breeding in a given area.
Źródło:
Studia Ecologiae et Bioethicae; 2011, 9, 2; 67-86
1733-1218
Pojawia się w:
Studia Ecologiae et Bioethicae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Badania rozmieszczenia i liczebności drzewiastych inwazyjnych gatunków obcych (IGO) a czynna ochrona zagrożonych ekosystemów leśnych w Kampinoskim Parku Narodowym
Research on distribution and abundance of invasive alien tree species (IAS) and active protection of endangered forest ecosystems in Kampinoski National Park
Autorzy:
Medrzycki, P.
Otreba, A.
Pabjanek, P.
Brys, K.
Panufnik-Medrzycka, D.
Gwiazda, S.
Anczarska, J.
Powiązania:
https://bibliotekanauki.pl/articles/880934.pdf
Data publikacji:
2007
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Leśny Zakład Doświadczalny. Centrum Edukacji Przyrodniczo-Leśnej w Rogowie
Tematy:
parki narodowe
Kampinoski Park Narodowy
rosliny
gatunki obce
gatunki inwazyjne
czeremcha amerykanska
Prunus serotina
wystepowanie
rozmieszczenie przestrzenne
liczebnosc
ekosystemy lesne
ochrona ekosystemow
ochrona czynna
Opis:
Inwazyjne gatunki obce (IGO) stanowią w wielu regionach świata poważne zagrożenie dla różnorodności biologicznej. Rozprzestrzenianie się tych gatunków ma również miejsce w Kampinoskim Parku Narodowym. Operat Urządzeniowy BUL z 2002 r. wykazał istnienie kilku ognisk inwazji i wielu rozproszonych mniejszych stanowisk. W celu określenia skali tego zjawiska i opracowania strategii czynnej ochrony podjęto kilkuletnie badania rozmieszczenia, liczebności i ekologii populacji, badania wpływu na ekosystemy leśne oraz badania efektywności metod usuwania. Jak dotąd, w latach 2004 i 2006 prowadzono kartowanie metodą siatki kwadratów w dwóch stopniach dokładności: w kwadratach o boku 50 m i o boku 500 m. Wyniki kartowania wskazują, że rozprzestrzenienie i zagęszczenie niektórych gatunków jest większe niż wskazywały na to dane taksacyjne z 2002 r. Planuje się wykorzystanie wyników kartowania do sporządzenia mapy potencjalnych siedlisk, mapy łącznego wpływu gatunków inwazyjnych oraz innych map pomocnych w podejmowaniu decyzji w sprawie aktywnej ochrony.
Invasive alien species are major threat to the biodiversity. They also spread in the Kampinoski National Park. Forest Inventory in 2002 revealed the existence of few large foci of Prunus serotina invasion, surrounded by many small ones. Two studies of spatial distribution and the abundance the most common IAS were conducted in 2004 and 2006, both using the rectangular plots of 50 x 50 m and 500 x 500 m size. First results indicate quite strong difference of the P.serotina area and suggest it was either underestimated or grew by 20% every two years since the forest inventory in 2002. When completed, the data on the distribution and abundance of IAS will be used to potential habitat modelling, global IAS impact assessment and cost estimation of different eradication measures.
Źródło:
Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej; 2007, 09, 2-3[16] cz.1
1509-1414
Pojawia się w:
Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bogactwo gatunkowe i liczebność fauny wielkiego miasta - przykład Warszawy
Species richness and abundance of the fauna of a big city - case of Warsaw
Autorzy:
Luniak, Maciej
Powiązania:
https://bibliotekanauki.pl/articles/1197944.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Przyrodników im. Kopernika
Opis:
A full (i.e. close to completion) list of fauna of any city, nowhere was assessed, mainly because taxonomic and ecological diversity of invertebrates is beyond practical possibilities to have cooperation in the given area of all specialists, which would be necessary for such a study. The most comprehensive studies of this kind, in comparison to fauna of the region, were carried out in Warsaw (Poland), and more recently in Łódź (Central Poland). Within administration area of Warsaw (492 km2), about 3,800 species of terrestrial invertebrates from above 90 families or orders were recorded together with about 320 vertebrate species. The complete list of the animal world of Warsaw is estimated to be about 6-7 thousand species. The species richness of the fauna in large (European) city is likely to comprise 5-10 thousand of species, but the present knowledge about urban invertebrate wildlife does not allow even a basic assessment to be made. The vertebrate fauna is known much better, its species richness is similar in European cities - about 300-400 species. Total number of animal species recorded in Warsaw (ca. 4,100) is about 12% of that indicated from the whole country (Poland). If only vertebrates (a relatively well studied group) are compared - the proportion is 48-50%. In almost all of taxa studied, the species richness decreased with increasing urbanization gradient. The number of invertebrate species recorded in the green suburbs of Warsaw was 57% of that recorded in comparable studies in the region, in urban parks - 31%, and in small green patches in the city centre - 14%. As concerns breeding birds - in Warsaw as a whole about 65% of the species were found in comparison to the region whilst in the inner city - about 37%. Studies on abundance of urban fauna in Warsaw indicated that 1 m2 of soil layer in city lawns contains on an average several tens of thousands of invertebrate individuals whilst 1 m2 of ground surface - several hundred of them. 1 m3 of the canopy of the park trees contains 2-3 thousand individuals with more than one hundred of them per sample of 100 leafs. The total population of the breeding avifauna of Warsaw was estimated to be 150-350 thousand pairs (breeding territories) i.e. ca. 300-700 pairs per km2. The average density of the bird population in the highly urbanized areas of inner Warsaw was 830-1590 pairs per 1 km2 in the breeding season, and 2.5-4.5 thousand individuals per 1 km2 in winter. This is similar to values reported from other European cities.
Źródło:
Kosmos; 2006, 55, 1; 45-52
0023-4249
Pojawia się w:
Kosmos
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Carex secalina [Cyperaceae], a species critically endangered in Europe: from propagule germination to propagule production
Autorzy:
Zukowski, W
Lembicz, M.
Olejniczak, P.
Bogdanowicz, A.
Chmiel, J.
Rogowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/57902.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
abundance
endangered species
fertility
seedling
Cyperaceae
Carex secalina
first reproduction
Europe
halophyte
field
age
germination
Opis:
The size and reproduction ability of the three field populations of Carex secalina Willd. ex Wahlenb. have been assessed. In the parallel garden study selected traits from the life history of the species have been studied, such as age at first reproduction, fertility, the size of seeds, their germination ability and size of seedlings. The populations of C. secalina discovered in Poland in 2000 are characterised by small abundance and small area. All individuals from the three populations in the garden produced generative shoots in the third year of life. Statistically significant differences between the populations were found in the production of shoots with unisexual spikes and bisexual ones, the latter had not been reported in the hitherto literature on the species. The seeds started germinating after a 6-months rest. The first seedlings were observed in the first decade of May. The largest seedlings were noted in the population producing the smallest seeds. The results contribute to explaining the renewal of the populations of this species in the field.
Źródło:
Acta Societatis Botanicorum Poloniae; 2005, 74, 2
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparing avifaunal diversity around Pench Tiger Reserve, Maharashtra and Madhya Pradesh
Autorzy:
Mondal, Sonia
Bhattacharyya, Suman
Powiązania:
https://bibliotekanauki.pl/articles/1193633.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Avifauna
Biodiversity indices
Habitat alterations
Habitat heterogeneity
Species abundance
Opis:
Large tracts of natural habitat are being readily replaced by urban sprawl worldwide. We have limited knowledge about the anthropogenic activities on native species in these ecological regions. Human intervention has led to conversion of much of the global diversity by means of habitat alterations. Our conservation methods are also suffering from those superficial strategies. The present study was carried out to investigate the importance of habitat heterogeneity for the diversity, distribution and abundance of avifauna in and around Pench Tiger Reserve. In February 2014, a total of 79 bird species were recorded during the study period, applying the modified point count method. We compared species abundance and richness in Pench Tiger Reserve, considering four zones as metacommunity. Avifaunal community was distributed among Kolitmara (Western Pench, Maharashtra), Sillari (Maharashtra), Mansinghdeo (Maharashtra) and Seoni, Pench (Madhya Pradesh). Site specific biodiversity indices reflect the occurrence pattern of avifauna. Shannon – Wiener and Species diversity Index scored highest (9.56 and 1.78 respectively) in Mansinghdeo Wildlife Sanctuary. But species dominance was found high (0.62) in and around Sillari. Study areas with dense canopy closure were found to have more habitat specialist bird species, while areas having human settlements showed more opportunistic ones. An overall negative impact of human settlements on avian diversity, distribution and abundance was evidenced from the present study but more intensive study is needed to infer on the dynamics. Moreover, intensive studies may enrich us about avian diversity and distribution pattern of the study zone.
Źródło:
World Scientific News; 2017, 71; 182-190
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Composition and diel vertical distribution of euphausiid larvae (calyptopis stage) in the deep Southern Adriatic
Autorzy:
Gangai Zovko, B.
Lucic, D.
Hure, M.
Onofri, I.
Pestoric, B.
Powiązania:
https://bibliotekanauki.pl/articles/48179.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
vertical distribution
abundance
temperature
salinity variation
euphausiid species
Euphausia brevis
Euphausia krohnii
Euphausia hemigibba
Euphausia snorvegica
Nematoscelis megalops
Nematoscelis couchii
Adriatic Sea
Źródło:
Oceanologia; 2018, 60, 2
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Czy zakładanie upraw dębowych metodą biologicznej racjonalizacji sprzyja zachowaniu leśnych zgrupowań skoczogonków (Collembola, Hexapoda)?
Does alternative methods of oak plantations establishment create favourable conditions for forest collembolan assemblages (Collembola, Hexapoda)?
Autorzy:
Sławska, M.
Sławski, M.
Powiązania:
https://bibliotekanauki.pl/articles/986682.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
hodowla lasu
uprawy lesne
uprawy debowe
zakladanie upraw lesnych
prowadzenie upraw lesnych
metody biologicznej racjonalizacji
fauna glebowa
zgrupowania zwierzat
skoczogonki
Collembola
oak cultivation
corridor and tree group methods
soil fauna
species richness
abundance
Opis:
Alternative methods of oak cultivation aim at reducing the cost of establishment of young plantations and decrease in the expenditure on their tending. In these methods, the corridors consisting of oak seedlings planted in the rows or isolated groups of twenty six seedlings are enclosed by stripes or patches without intervention left for natural succession. The restriction in site preparation on these areas and spontaneous development of young generation of trees are assumed to create favourable conditions for many forest organisms and, in results, significantly improve biological diversity of the managed forests. The aim of the study was to recognize the response of forest collembolan assemblages on alternative methods of establishment of oak plantations. The study was performed in the Forest Experimental Station in Rogów (Central Poland). In a mature stand on moderately humid mixed deciduous forest site, on clear−cut and on oak young plantations made by corridor and tree groups methods, fifteen study plots were established. In case of young plantations, these plots encompassed both artificially planted corridors or tree groups and adjacent fragments of plantation left for natural succession. Soil samples were taken in June and September 2014 and, using a simplified Tullgren apparatus, 18 thousands of collembolan specimens belonging to 84 taxa were identified. Our study proved that clear−cut and site preparation by rotary tiller on moderately humid mixed deciduous forest had a negative impact on Collembola assemblages, because caused a reduction in species number and abundance. However, the establishment of oak plantations by alternative methods, consisting in abandonment an artificial planting on some patches of renewed plots, significantly mitigate negative effects of clear−cut and reforestation on collembolan assemblages. The species number and abundance of springtails on patches left for spontaneous succession were distinctly higher than in artificially planted corridors or groups of trees in case of all studied plantations. Furthermore, it seems that corridor method in oak plantations establishment is advantageous for forest springtails, because the number of specimens per square meter on corridor plantation was higher than in tree group method. The beneficial effect on soil fauna of alternative methods of oak cultivation described in this paper weighs in favour of their wider application in silviculture.
Źródło:
Sylwan; 2018, 162, 07; 580-589
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Distribution patterns of three Potamogeton species (P. crispus, P. nodosus and P. pectinatus) along velocity and base richness gradients from a lowland river
Autorzy:
Jakubas, E.
Gabka, M.
Powiązania:
https://bibliotekanauki.pl/articles/878331.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Przyrodniczy w Poznaniu
Tematy:
distribution pattern
Potamogeton
Potamogeton crispus
Potamogeton nodosus
Potamogeton pectinatus
abundance
hydrophyte
gradient
lowland river
river
environment
Natura 2000 area
Opis:
This study presents distribution and abundance of three Potamogeton species, namely Potamogeton crispus, P. nodosus and P. pectinatus along environmental gradients in the lowland river Wełna (NW Poland). The relationships between 13 environmental factors and the pattern aquatic vegetation distribution along river were investigated. Among ecological factors rarely undertaken in aquatic ecology the light climate was concerned. It is postulated that the Potamogeton communities in the investigated river are strongly connected with water velocity, substrate of bottom and light conditions, in particular dissolved organic matter (DOM). Elodeo-Potametum crispi and algae communities with dominant species Hildenbrandia rivularis were well developed in the places shading by trees, with high velocity and fairly clean water, mostly with stony bottom. Potametum nodosi was noted in mean values of velocity and medium water quality with high content of organic matter in the bottom substrate. The last investigated community Sparganio-Potametum interrupti was found in poor water quality with the highest values of electric conductivity. The obtained results give a new approach of the ecology and abiotic typology of rivers with macrophytes including abundance of Potamogeton species (Nature 2000 habitat, code 3260 – “Water courses of plain to montane levels with the Ranunculion fl uitantis and Callitricho-Batrachion vegetation”).
Źródło:
Roczniki Akademii Rolniczej w Poznaniu. Botanika-Steciana; 2013, 17
1896-1908
Pojawia się w:
Roczniki Akademii Rolniczej w Poznaniu. Botanika-Steciana
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of climate change on the population of butterfly families - species richness, abundance and species composition across the different seasons of the year in Kalaburagi, Karnataka, India
Autorzy:
Saraf, Kavya K.
Vijaykumar, Katepaga
Powiązania:
https://bibliotekanauki.pl/articles/1031267.pdf
Data publikacji:
2021
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Abundance
Butterflies
Climate Change
Hesperiidae
Lycaenidae
Nymphalidae
Papilionidae
Pieridae
Species composition
Opis:
Butterflies are very sensitive insects for climate change, environmental pollution. Butterflies are model for most of the studies which focus on the effect of climate change on the species richness, change in abundance, species distribution, population size; it is also because of butterflies are umbrella species,. The conservation programme of butterflies will surely help to conserve other species from plants to microscopic organisms. In this study an attempt was made to evaluate the change in butterfly population dynamics through different seasons of the year. According to the observation made during research period it is clear that species richness was the highest from August to November (Monsoon and Early Monsoon) followed by Winter. The lowest were in Hot Summer and Summer that is from February to May. This study is an example for the impact of climate change on the diversity of butterflies from semi-arid geographical region of India; revealed the impact of climate on the species composition, species richness and abundance of butterflies. Such studies are very much important to show that the effects of climate change whether it is natural or human induced change the species composition of species directly and indirectly effecting the ecosystem balance.
Źródło:
World News of Natural Sciences; 2021, 34; 1-28
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Goździk kosmaty Diathus armeria L. na Pogórzu Cieszyńskim (południowa Polska)
Deptford pink Diathus armeria L. in the Cieszyn Foothills (southern Poland)
Autorzy:
Beczała, Tomasz
Chmura, Damian
Powiązania:
https://bibliotekanauki.pl/articles/36078220.pdf
Data publikacji:
2024-06
Wydawca:
Uniwersytet Bielsko-Bialski
Tematy:
gatunek chroniony
zasoby populacji
stanowiska rzadkich gatunków roślin
protected species
abundance of population
localities of rare plant species
Opis:
Deptford pink Dianthus armeria L. is a representative of Caryophyllaceae family. It is plant species that is strictly protected since 2014. In the local Red List for the Silesian Province it was considered an endangered species. During 2023-2024 fieldwork was done that aimed to update the list of the localities of this species in the Cieszyn Foothills region. The locality was marked on the map using methodological assumptions of Atlas of Distribution of Vascular Plants in Poland. The density of population was counted or estimated. As a result of the field studies in the study area 9 localities (a total of 17 local populations) of Dianthus armeria were found in grassland, meadow, fringe and ruderal communities. Totally 8 localities were new to this area. Only localities from Tuł Mt has been known earlier. There were also the highest abundance of population, estimated at 600-700 individuals but population contain several small populations that amounting from tens to several hundreds of plants. Two populations are in Cisownica village and they occupy slopes of two local mountains: Kopieniec Mt (475 m a.s.l.) and Malcowa Mt (510 m a.s.l.). In Cieszyn population grows close to the nature reserve “Kopce”, and ecological use are “Łąki na kopcach”. In Leszna Górna village populations occupy xerothermic grasslands. The other situation is Górki Wielkie where the species grows in ruderal habitats: levees along Brennica river and in the vicinity of market. The other human-made habitats which were grown by Dianthus armeria were found in Puńców. These ones were abandoned quarry of dolomites and the vicinity of sports field but close to the fring of oak-hornbeam forest. In general, the population in the Cieszyn Foothills, size ranged from a few individuals to approximately several hundred. The lack of accurate data from previous years does not allow to assess the dynamics of the distribution and abundance of this species. Based on the general trends of Dianthus armeria in Poland, the population status appears to be satisfactory.
Źródło:
Polish Journal of Materials and Environmental Engineering; 2024, 7(27); 56-62
2720-1252
Pojawia się w:
Polish Journal of Materials and Environmental Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ground beetle communities found in the suburbs of oil wells of oil fields in Khoiniki district (Republic of Belarus)
Zgrupowania biegaczowatych w pobliżu szybów naftowych w rejonie chojnickim (Białoruś)
Autorzy:
Halinouski, Mikalai
Potapov, Dmitry
Averin, Viktor
Demidenko, Oleg
Powiązania:
https://bibliotekanauki.pl/articles/27322937.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Pomorski w Słupsku
Tematy:
Coleoptera
Carabidae
oil wells
species abundance
hygropreferendum
biopreferendum
life forms
Opis:
Ground beetle communities found in the suburbs of wells of three oil fields of Khoiniki district (Republic of Belarus) were studied in the research carried out. These deposits are in the forest area. This research drew out that there is a growth in the number of species composition and abundance of ground beetles (Carabidae) in the exclusion zone due to the anthropogenic transformation of forest ecosystems. At the same time there is a reduction in representation in ground beetle communities of forest species in favor of meadow and field species to their total disappearance. The reduction occurs together with the growth of species abundance and number.
Źródło:
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline; 2021, 25; 61-70
1643-0115
Pojawia się w:
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 32

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