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Tytuł:
Acritarch assemblages from the Silurian Pomeranian Caledonides and their foreland
Autorzy:
Jachowicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/2059448.pdf
Data publikacji:
2000
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Pomeranian Caledonides
Silurian
acritarch assemblages
Opis:
Comprehensive palynological studies of the Silurian rocks of the Pomeranian Caledonides are described, the first since Eisenack's (1972) work. 250 clastic rock samples were analysed, all from deep boreholes. Three of these boreholes (Lębork IG 1, Gdańsk IG 1 and Kościerzyna IG 1) are located NE of the Teisseyre-Tornquist Zone (TTZ) and contain horizontal successions of the western, marginal part of the East European Craton. Other boreholes studied (Bydgoszcz IG 1, Klosnowo IG 1 and Stobno 1) penetrated folded Lower Palaeozoic sediments, and lie SE of the TTZ. The investigations included a complete Silurian profile from the Llandovery to the Poidoli, which is documented in detail by graptolites. Associations of microflora (Acritarcha, Prasinophyceae, Sporites) and microfauna (Chitinozoa, Scolecodonta) varied in quality and quantity. There was considerable variability in the preservation and thermal maturity of the organic-walled microfossils. Detailed investigations of the acritarchs are described. 7 characteristic acritarch assemblages have been distinguished, and these are correlated with the graptolite biozones. Llandovery rocks contain assemblages with Domasia, Ammonidium and Tylotopalla genera. Wenlock deposits include Tylotopalla, Leptobrachion and Cymbosphaeridium. The Upper Ludlow deposits contain well preserved assemblages with Visbysphaera, Veryhachium, Onondagella and Leoniella, accompanied by Neoveryhachium carminae, Geron gracilis, and some Deflandrastrum and Visbysphaera species generally considered characteristic of Gondwana. Throughout the Silurian profile, individual specimens of typical Ordovician genera such as Acanthodiacrodium, Frankea, Striatotheca and Coryphidium occur. The acritarch assemblages overall show mixed characters, typical of both Baltica and Gondwana.
Źródło:
Geological Quarterly; 2000, 44, 3; 317-331
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zgrupowania epigeicznych mrówek w drzewostanach sosnowych opryskanych inhibitorami syntezy chityny
Autorzy:
Głowacka, B.
Mazur, S.
Powiązania:
https://bibliotekanauki.pl/articles/1022200.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
mrowki
drzewostany sosnowe
inhibitory biosyntezy chityny
zgrupowania zwierzat
srodki ochrony roslin
lesnictwo
owady epigeiczne
pest control
acylureas
epigeic ants assemblages
Opis:
This paper is an attempt to find the changes which undergo in ants assemblages after using acylureas pine foliophagous pest.
Źródło:
Sylwan; 2005, 149, 03; 34-41
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bentonitized tuffites in the Lower Eocene deposits of the Subsilesian Unit (Western Outer Carpathians, Poland): lithology, stratigraphic position and mineral composition
Zbentonityzowane tufity w dolnoeoceńskich osadach jednostki podśląskiej (polskie Zachodnie Karpaty Zewnętrzne): litologia, pozycja stratygraficzna i skład mineralny
Autorzy:
Cieszkowski, M.
Środoń, J.
Waśkowska-Oliwa, A.
Leśniak, T.
Powiązania:
https://bibliotekanauki.pl/articles/191629.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
Polish Outer Carpathians
Subsilesian unit
Early Eocene
bentonitized tuffites
foraminiferal assemblages
Opis:
New occurrences of bentonitized tuffites were described from numerous outcrops of the Lower Eocene flysch rocks of the Subsilesian Unit. These deposits crop out in the Żywiec tectonic window and in the tectonic windows of the Lanckorona - Żegocina Structural Zone. The bentonitized tuffites, composed of almost pure dioctahedral motmorillonite, form numerous thin layers and laminae, only occasionally exceeding 5 cm. The age of the tuffites is estimated as the Early Eocene (Glomospira div. sp. and Saccamminoides carpathicus zones) on the basis of foraminiferal assemblages. They occur in the upper part of green shales and in the lower part of the Lipowa beds that consist mainly of muddy turbidites represented by green or green-brownish shales with rare intercalations of sandstones. The sedimentary sequences with the tuffite intercalations form a lithostratigraphic level in the Subsilesian Unit called in the present paper "the Glichów Tuffite Horizon". This tuffite horizon could probably be correlated with deposits of similar age containing tuffites which are known from the Magura, Silesian and Skole nappes.
Źródło:
Annales Societatis Geologorum Poloniae; 2006, 76, No 2; 197-214
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Charakterystyka jurajskich mszywiołów południowej Polski w aspekcie warunków paleooerodowiska i biogeografii
Characteristics of Jurassic bryozoans from southern Poland in palaeoecological and biogeographical aspects
Autorzy:
Hara, U.
Powiązania:
https://bibliotekanauki.pl/articles/2074500.pdf
Data publikacji:
2007
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
jura
mszywioły
różnorodność
paleośrodowisko
biogeografia
Jurassic
bryozoan assemblages
cyclostomes
diversity
palaeoecology
biogeography
Opis:
A few distinctive bryozoan assemblages have been recognized in the Middle and Upper Jurassic sediments of southern Poland. The biota moderately rich in bryozoan taxa are generally restricted to a few cyclostome genera and dominated respectively by tubuloporines among which the majority form a fan-shaped or discoidal [bereniciform], encrusting colonies previously called "Berenieca", a bryozoan ubiquitous in the Jurassic. The Lower and Upper Callovian epifaunal bryozoan community of the vicinity of Cracow at Zalas in the Cracow Upland is represented by well-known Jurassic Stomatopora Bronn, Hyporosopora Canu & Bassler and Microeciella Taylor & Sequeiros, genera, as well as the other undeterminated, numerous bereniciform colonies. In terms of the species richness the most diversified is the Early Oxfordian bryozoan assemblage of the Ćmielów area [NW margin of the Holy Cross Mts], associated with an open shelf biohermal sedimentation, which was replaced later [during the transversarium and bifurcatues zones] by the shallow-water, soft-bottom coral buildups, among which the bryozoans are well-represented and described from Bałtów. The presence of the ?Late Tithonian–Berriasian bryozoan fauna has been documented in the thin-sections of the Stramberk limestones of the Polish Flysch Carpathians. Palaeoecological aspects of the studied bryozoan biotas are related to the nature and relative abundance of the colonial growth forms, the substrate type and other ecological factors. The moderately rich occurrence of the bryozoans in the Late Middle and Upper Jurassic sequences of Poland shows a different pattern of distribution than the biotas of the northwestern Europe which display the greatest species diversity in the Middle Jurassic [Bathonian]. The taxonomical and biogeographical studies of the Jurassic bryozoan biotas of Poland, in spite of the great patchiness in the global distribution of the Jurassic cyclostomes, has a key significance for the evolutionary radiation pattern and may add new data, whether this fauna originated and started to radiate in the Late Middle or the Upper Jurassic, or this event was mostly connected with the facies migration from west to east.
Źródło:
Przegląd Geologiczny; 2007, 55, 1; 54-60
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Criteria to discriminate between proglacial and paraglacial environments
Autorzy:
Slaymaker, O.
Powiązania:
https://bibliotekanauki.pl/articles/294984.pdf
Data publikacji:
2007
Wydawca:
Stowarzyszenie Geomorfologów Polskich
Tematy:
proglacial ststems
paraglacial systems
sediment-landform associations
landform assemblages
Źródło:
Landform Analysis; 2007, 5; 72-74
1429-799X
Pojawia się w:
Landform Analysis
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Molluscs in Eemian-Vistulian deposits of the Kolodiiv section, Ukraine (East Carpathian Foreland) and their palaeoecological interpretation
Autorzy:
Alexandrowicz, W.P.
Dmytruk, R.
Powiązania:
https://bibliotekanauki.pl/articles/2059489.pdf
Data publikacji:
2007
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Ukraine
Halye Basin
Vistulian
loess
molluscan assemblages
Opis:
A profile of loess several metres thick with palaeosoils, underlain by calcareous gyttja, out crops in Kolodiiv, Ukraine. Rich and diverse assemblages of molluscs have been found in these deposits. Three types of mollusc communities can be distinguished. The oldest is dominated by freshwater taxa and corresponds to calcareous gyttja of Eemian age. The next two assemblages contain only snails typical of loess. The first of these indicates a cold and dry climate and open environment of arctic steppe type, with rapid accumulation of loess; the second assemblage represents a cold and humid climate and a relatively moist, open environment of tundra type.
Źródło:
Geological Quarterly; 2007, 51, 2; 173-178
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ewolucja jezior przybrzeżnych Niziny Gardzieńsko - Łebskiej na tle rozwoju środkowego wybrzeża Bałtyku w świetle badań malakologicznych
Evolution of coastal lakes of the Gardno - Łeba Lowland in the light of malacological research
Autorzy:
Wojciechowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/295242.pdf
Data publikacji:
2008
Wydawca:
Stowarzyszenie Geomorfologów Polskich
Tematy:
jeziora przybrzeżne
Nizina Gardzieńsko-Łebska
wybrzeże południowego Bałtyku
zespoły mięczaków
coastal lakes
Gardno-Łeba Lowland
South Baltic Coast
molluscs assemblages
Opis:
Wartykule przedstawiono syntezę dotychczasowego stanu wiedzy o rozwoju jezior przybrzeżnych Niziny Gardzieńsko- Łebskiej i środkowego wybrzeża Bałtyku, bazującą na wynikach badań malakologicznych. Analizy zespołów mięczaków z osadów limnicznych i morskich pozwoliły na wyróżnienie czterech faz rozwojowych jezior: wczesnoholoceńskiej fazy limniczno-bagiennej (trwającej od późnego glacjału do około 7500 lat 14C BP), fazy lagunowej (około 7500–6600 lat 14C BP), fazy przejściowej, słonawowodno-limnicznej (6600–4000 lat 14C BP) oraz fazy jeziornej (młodszej od 4000 lat 14C BP).W artykule wykazano, iż sukcesja malakofauny jest odzwierciedleniem regionalnych przemian środowiska, zarejestrowanych podobnymi zmianami zespołów fauny na całym wybrzeżu południowego Bałtyku.
The papers presents the synthesis of the current understanding of the evolution of coastal lakes in the Gardno-Łeba Lowland. Particular emphasis has been placed upon the influence of pre-Holocene surface topography on lake basin evolution and water level changes caused by the transgression of southern Baltic. Malacological analysis reveals four phases in lake environmental history: limnic-swampy phase, lagoon phase, transitional brackish-limnic phase, and limnic phase. The oldest, early Holocene limnic-swampy phase in the Gardno-Łeba Lowland area is represented by Preboreal and Boreal assemblages with freshwater fauna, described as Planorbis phase. It is characterized by rich assemblages, in terms of both number of individuals and species, composed of members of Planorbis, accompanied by Bithynia tentaculata, Valvata piscinalis and Pisidium. The lagoon-marine phase, described as Scrobicularia phase (7500–6000 BP), is defined by a homogeneous assemblage of malacofauna, consisting entirely of brackish and marine species, such as Hydrobia ulvae, H. ventrosa, Cerastoderma glaucum, Macoma baltica, Mytilus edulis and indicative Lusitanian and Lower Boreal species for the Mesoholocene of the southern Baltic, including Scrobicularia plana, Rissoa membranaea, R. inconspicua, Parvicardium exiguum and Mysella bidentata. The transitional brackish-limnic phase Cardium (6600–4000 BP) is correlated with late Littorina transgressive phases. It is dominated by Cardium glaucum, with minor percentage of Hydrobia ventrosa, Mytilus edulis, and sporadic freshwater species. The limnic Lymnaea phase corresponds with the post-Littorina period (4000 BP–1900 AD). The onset of this phase is marked by an assemblage with dominating Theodoxus fluviatilis, the optimum – by Lymnea peregra assemblages, whereas frequent Bithynia tentaculata indicate the end of the phase. The youngest Potamopyrgus phase includes recent lake sediments from the last 100 years and is marked by the first appearance of a new mollusc species in the coastal zone of the Baltic – Potamopyrgus antipodarium. The malacofauna succession identified in the coastal lakes in the Gardno-Łeba Lowland reflects regional environmental change, recorded by similar faunal assemblages throughout the southern coast of the Baltic.
Źródło:
Landform Analysis; 2008, 7; 154-171
1429-799X
Pojawia się w:
Landform Analysis
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of palaeoclimate and the green house effect on Hettangian clay mineral as sem blages (Holy Cross Mts. area, Polish Basin)
Autorzy:
Brański, P.
Powiązania:
https://bibliotekanauki.pl/articles/2059218.pdf
Data publikacji:
2009
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Hettangian
Holy Cross Mountains
margin
clay mineral assemblages
palaeoclimate
greenhouse effect
Opis:
Hettangian clay mineral assemblages from the Holy Cross Mts. margin (south eastern part of the epicontinental Polish Basin) were mostly controlled by climaticcon ditions and weathering regime. Hettangian claystones and mudstones were deposited in continental and marine-margin palaeoenvironments in a warm climate, mostly with year-round humidity. The pronounced, long-term green house conditions intensified chemical weathering in the hinterland. Reworking and redeposition of ancient sediments caused by tectonics and/or by sea-level changes and early diagenesis may have modified the clay mineral content in the earliest Hettangian. Burial diagenesis and telodiagenesis changed the clay mineral composition only locally.
Źródło:
Geological Quarterly; 2009, 53, 3; 363-368
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Malakofauna górnoholoceńskich martwic wapiennych w Beskidach Zachodnich (południowa Polska)
Malacofauna of Upper Holocene calcareous tufa in the Western Beskidy Mts (Southern Poland)
Autorzy:
Alexandrowicz, W. P.
Powiązania:
https://bibliotekanauki.pl/articles/183928.pdf
Data publikacji:
2009
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
martwice wapienne
malakofauna
zespoły mięczaków
górny holocen
Beskidy Zachodnie
południowa Polska
calcareous tufa
malacofauna
molluscan assemblages
Upper Holocene
Western Beskidy Mts.
southern Poland
Opis:
Górnoholoceńskie martwice wapienne występują pospolicie na obszarze Beskidów Zachodnich. Często, choć nie zawsze, zawierają one miej lub bardziej bogate zespoły mięczaków. Analiza malakologiczna przeprowadzona została na podstawie materiału pochodzącego z 33 stanowisk reprezentowanych przez 59 próbek. Pozwoliła ona na opis najbardziej charakterystycznych zespołów mięczaków. Zostały wydzielone cztery typy i trzy podtypy fauny różniące się między sobą strukturą i składem gatunkowym. Malakofauna rozpoznana w omawianych osadach węglanowych jest ściśle uzależniona od lokalnych warunków. Spośród 68 rozpoznanych gatunków tylko kilka występowało licznie i w wielu profilach, podczas gdy pozostałe miały znaczenie akcesoryczne. Badania nad górnoholoceńskimi martwicami wapiennymi mają duże znaczenie dla rozpoznania mechanizmów tworzenia takich osadów węglanowych i zróżnicowania zespołów fauny. Stanowią one także podstawę rozważań aktuopaleontologicznych istotnych dla interpretacji paleogeograficznych i paleoekologicznych martwic holocenu oraz późnego glacjału występujących w południowej Polsce.
Upper Holocene calcareous tufa occur commonly in the Western Beskidy Mts. Often, at least not always they contain more or less rich and differentiated molluscan assemblages. Malacological analysis was carried out on the basis of material collected from 33 localities represented by 59 samples. The most typical communities of snails and bivalves were characterized. Four types and three subtypes of fauna differing oneself in structure and species composition have been distinguished. Malacofauna recognized in discussed calcareous deposits is closely depended on local conditions. The whole material comprises 68 species, but only a few of them occur in large numbers and in many profiles, while the remaining ones had only accesorical importance. Malacological investigations of Upper Holocene calcareous tufa are important for recognizing mechanisms of deposition such calcareous sediments and differentiation of molluscan assemblages. They can be useful for actuopelaeontological analysis essential for palaeogeographical and palaeoecological interpretations of tufas of Holocene and Late Glacial age occurred in Southern Poland.
Źródło:
Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie; 2009, 35, 2; 175-200
0138-0974
Pojawia się w:
Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dinoflagellate cyst and spore−pollen spectra from the Lower Oligocene Krabbedalen Formation at Kap Brewster, East Greenland
Autorzy:
Birkenmajer, Krzysztof
Gedl, Przemysław
Worobiec, Elżbieta
Powiązania:
https://bibliotekanauki.pl/articles/2051607.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Greenland
Kap Brewster
Early Oligocene
biostratigraphy
palynology
dinoflagellate cyst assemblages
Źródło:
Polish Polar Research; 2010, 2; 103-140
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Molluscs of the Eemian Interglacial in Poland
Autorzy:
Alexandrowicz, S. W.
Alexandrowicz, W. P.
Powiązania:
https://bibliotekanauki.pl/articles/191962.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
Eemian Interglacial
basic and supplementary sections
molluscan assemblages
malacostratigraphy
Polska
Opis:
Shells of subfossil snails and bivalves commonly noted in deposits of the Eemian Interglacial were used by several authors as more or less important stratigraphic indicators. In Poland, they have been noted in 35 sections, 20 of which are described as basic ones. Molluscan assemblages found at these sites include 60 species of freshwater molluscs and 58 species of land snails, the former being dominant. Climatic tolerance of particular species is the main attribute deciding on their stratigraphic values. Cold-tolerant snails are typical of the preceding Late Glacial and some of them occur also in early phases of the interglacial, while species connected with moderate climate and warm-demanding ones characterise the middle part of the Eemian Interglacial. The freshwater snail Belgrandia marginata is typical of the climatic optimum of this interglacial. Particular species of molluscs were related to regional pollen assemblage zones of the Eemian Interglacial in Poland.
Źródło:
Annales Societatis Geologorum Poloniae; 2010, 80, No 1; 69-87
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zgrupowania biegaczowatych jako zooindykatory różnych sposobów przygotowania gleby na zrębach oraz ich zagospodarowania
Carabid communities as zooindicators of soil scarification techniques applied in clear-cutted forest stands and the further used management practices
Autorzy:
Skłodowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/1009276.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
zreby
zrab zupelny
zagospodarowanie lasu
gleby lesne
przygotowanie gleby
bioindykacja
bioindykatory
owady
biegaczowate
Carabidae
zgrupowania zwierzat
clear cut area
soil preparation
carabidae
structure of assemblages
regeneration
Opis:
In this paper the effect of different methods of soil scarification in a clear−cut area were studied. The following soil preparation techniques were applied: the soil cutter, the active soil plough, the traditional method with use of LPz plough, and the manual scarification of soil in circles surrounding the stem of the future young tree. The effect of management of the residual heaps of branches was also tested. Branches were either put in prisms in the original shape or, having been previously chipped, equally distributed over the entire area of the clear−cut. Additional studies focused on the effect of the time of clear−cut execution (winter or summer) on the condition of epigeic carabid communities. The least regressive effect to analysed communities was observed after the application of the point manual soil scarification. The clear−cuts carried out during the winter season, to a greater degree, favours the forest carabid fauna, preserving them in a structure more resembling the forest communities. More distinctive positive effect on the carabids is observed after putting the residual heaps of branches in prisms; the latter gives shelter for the carabid fauna and constitutes the refuge spots for it.
Źródło:
Sylwan; 2010, 154, 09; 625-638
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zgrupowania wciornastków (Thysanoptera) pni drzew w różnowiekowych lasach dębowych Słowacji
Assemblages of bark-dwelling thrips [Thysanoptera] of uneven-aged oak forests in Slovakia
Autorzy:
Dubovsky, P.
Fedor, P.
Kucharczyk, H.
Masarovic, R.
Balkovic, J.
Powiązania:
https://bibliotekanauki.pl/articles/1009045.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewostany debowe
drzewa lesne
dab
Quercus
pnie drzew
owady
wciornastki
Thysanoptera
zgrupowania zwierzat
sklad gatunkowy
struktura zgrupowan
drzewostany roznowiekowe
Slowacja
thysanoptera
oak woods
assemblages
diversity
corticolous species
bark
Opis:
The paper refers to the research on bark−dwelling thrips (Thysanoptera) on oaks (Quercus sp.) in the area of ‘Martinský les' wood that is a rare isolated refuge of natural oak wood stands Aceri tatarici−Quercetum Zólyomi 1957 being situated in lowland close to the town Senec in SW Slovakia. Arboreal photoeclectors were used for sampling corticolous arthropods at 6 various sites during the vegetation periods 2007 and 2008 in three−week intervals. Totally 1544 specimens of 35 Thysanoptera species were collected. Six of the species: Kakothrips dentatus, Thrips calcaratus, Phlaeothrips bispinoides, Hoplothrips corticis, Megathrips nobilis and Poecilothrips albopictus were observed for the first time in Slovakia. The statistic analysis PPCA was used for finding the relation between the assemblage's species composition and the age of oak trees on researched sites.
Źródło:
Sylwan; 2010, 154, 10; 659-668
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zmiany zgrupowań biegaczowatych zamieszkujących drzewostany zaburzone przez huragan – wyniki pierwszych 6 lat obserwacji w Puszczy Piskiej
Changes in ground beetle assemblages inhabiting forest stands disturbed by the hurricane - the results of the first 6 years of the observations in Puszcza Piska Forest
Autorzy:
Skłodowski, J.
Garbalińska, P.
Powiązania:
https://bibliotekanauki.pl/articles/1009397.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
Puszcza Piska
drzewostany pokleskowe
drzewostany pohuraganowe
owady
biegaczowate
Carabidae
zgrupowania zwierzat
liczebnosc
zmiany skladu gatunkowego
hurricane
disturbance
post−hurricane stands
carabidae
ground beetles
assemblages structure
mib
spc/mib model
Opis:
A survey on the structure and species composition of ground beetle assemblages inhabiting forest stands disturbed by the hurricane was carried out. During the first 6 years after the hurricane two distinct phases of carabids response to the disturbance could be observed. The first 3 years were characterised by relatively minor, although mostly statistically significant changes in carabids abundance, mean individual biomass and assemblages structure. In the 4th year after the hurricane, the second phase started comprising profound changes in all analysed parameters. The state of development of ground beetle assemblages inhabiting disturbed stands worsened considerably, however it did not reach the very low level recorded in assemblages inhabiting clear−cuts. The study revealed that the regression of carabid assemblages in post−hurricane stands occurred with a time lag of 3 years after the hurricane. Moreover, no symptoms of carabid assemblages regeneration could be observed.
Źródło:
Sylwan; 2010, 154, 08; 552-568
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Palynomorph assemblages from the Upper Ordovician in northern and central
Autorzy:
Stempień-Sałek, M.
Powiązania:
https://bibliotekanauki.pl/articles/191654.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
palynological assemblages
palynostratigraphy
palaeotemperatures
Upper Ordovician
Polska
Opis:
Palynological studies have been done to compare the Upper Ordovician strata in various geological units of northern and central Poland (epi-Caledonian Platform, East European Platform, Małopolska Block and Holy Cross Mountains–Łysogóry Fold Zone and Kielce Fold Zone). Two distinct palynological assemblages have been distinguished in the studied material: the Caradoc assemblage I and the Ashgill assemblage II (with two sub-assemblages IIa and IIb), thus demonstrating usefulness of the Upper Ordovician palynomorphs for biostrati- graphy. Thermal maturity of organic matter was studied using the TAI method. The palynological analysis, palynostratigraphy, and estimates of thermal maturity were done with the aim at palynological characterization of three ancient units: the Avalonia, Baltica and the Małopolska Block, all now participating in structures of the present-day geological units of northern and central Poland.
Źródło:
Annales Societatis Geologorum Poloniae; 2011, 81, No 1; 21-61
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 30

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