Wyniki wyszukiwania - BazTech

1

Population dynamics and feeding ecology of the western tubenose goby (Proterorhinus semilunaris) in the Stugna River, Dnieper River basin, Ukraine

Didenko Alexander, Volikov Yurij, Gurbyk Alexander, Kruzhylina Svitlana, Buzevych Igor, Bekh Vitaliy

Oceanological and Hydrobiological Studies

|

2024

|

Vol. 53, No. 1

61--70

EN

The study investigated the inter-annual and seasonal population dynamics, as well as the feeding habits of the western tubenose goby Proterorhinus semilunaris in an invaded river close to its natural range (Dnieper River basin). Material was collected monthly in 2015–2016 and 2018 at one sampling site located in the Stugna River, at a distance of 1100 m from the point where it enters the Kaniv reservoir. Catch-per-unit-efforts (CPUE) of this species at the sampling site varied considerably, both between different months within a given year and between the analyzed years, from 1.1 to 127.1 fish 100 m-2. Peak abundances were observed in July in both 2015 and 2018, and then dropped sharply in the following months. The western tubenose goby is characterized by a protracted spawning season, lasting from April to July. A total of 50 prey taxa were recorded in the diet of the western tubenose goby at the sampling site, among which chironomids were the most abundant and most frequently encountered, followed by cladocerans. This gobiid at the sampling site preyed mainly among submerged vegetation, where phytophilous chironomids were the most important prey.

2

Nieoczywiści mieszkańcy polskich miast

Szwedkowski Witold

Zieleń Miejska

|

2023

|

Nr 11

28--29

PL

Inwazyjnych gatunków obcych nie można lekceważyć, nawet gdy występują w pojedynczych egzemplarzach. Odnosi się to chociażby do dziko żyjących w Polsce papug czy żółwi.

3

Miły w dotyku poważny problem

Zarzycki Wojciech

Zieleń Miejska

|

2023

|

Nr 11

30--31

PL

W krótkim, trójliterowym słowie „kot” mieści się nieskończona wręcz ilość treści i powiązanych z nim konotacji. Trudno się dziwić – w naszym kręgu kulturowym koty towarzyszą człowiekowi właściwie od początku dziejów. Ssaki te są też ważnym elementem współczesnej kultury popularnej, choćby jako element składowy milionów memów. Jakiś czas temu w mediach zrobiło się głośno o kotach z innego powodu – pojawiły się doniesienia o tym, jakoby kot domowy był gatunkiem inwazyjnym, co wzburzyło opinię publiczną.

4

How quickly do invasive raccoons learn to steal bait? : lesson from disturbed small mammal trapping

Piórkowska Kinga, Jankowiak Łukasz, Modelska Zuzanna, Hoffmann Anke, Kuzdrowska Klaudia, Malinowska Bogna, Sęk Oliwia, Rychlik Leszek

Polish Journal of Ecology

|

2023

|

Vol. 71, nr 2-3

95--99

EN

The expansion of invasive alien species is a major threat to the environment and economy. Animal invasions, especially by raccoons Procyon lotor are increasingly harmful. Raccoons' reduced neophobia enables easy adaptation to humans and surroundings. They exploit human presence in their natural habitat. Camera traps and direct observations in Germany's Lower Oder Valley National Park and Poland's Lower Oder Valley Landscape Park revealed raccoons' cognitive abilities and effective learning processes. This study demonstrates their rapid learning in finding and opening traps, removing bait, killing and eating trapped rodents. To minimize disturbance by raccoons, we recommend to preselect study plots without raccoons or to use of protective devices.

5

Nowe rozwiązania w zakresie zwalczania gatunków obcych

Gruszecki Krzysztof

Zieleń Miejska

|

2022

|

Nr 3

57--58

PL

Wraz z rozwojem cywilizacyjnym przyspieszeniu uległo zarówno celowe, jak i przypadkowe przemieszczanie gatunków w środowisku. Niestety skutki środowiskowe tych zmian wymykają się często spod kontroli. Dlatego też coraz większego znaczenia nabierają rozwiązania prawne określające, jakie działania formalne muszą być podjęte w celu legalnego przemieszczania gatunków w środowisku oraz jakie obowiązki są związane ze zwalczaniem gatunków inwazyjnych generujących największe zagrożenie dla środowiska.

6

Inwazyjne gatunki drzew w Warszawie

Korbik Mateusz

Zieleń Miejska

|

2022

|

Nr 3

30--31

PL

Inwazyjnymi nazywane są zwykle gatunki obce dla danego obszaru, których uwolnienie do środowiska przyrodniczego może zagrozić rodzimym gatunkom lub całym siedliskom przyrodniczym. Warszawa jest jednym z przykładów tego, w jaki sposób gatunki te funkcjonują w obszarze dużego miasta – gdzie część z nich z jednej strony stanowi świetne drzewa przyuliczne, z drugiej natomiast degraduje obszary chronione.

7

Plant communities in drainage ditches – conditions, characteristics and environmental functions

Kiryluk Aleksander

Studia Quaternaria

|

2022

|

Vol. 39, Nr 1

31--40

EN

Ditches and drainage canals are an important element in the post-bog meadows. Their basic function is to regulate air-water relations in ecosystems, mainly in agrocenoses. The environmental functions of ditches and canals consist of maintaining a large diversity of flora and fauna species due to high humidity of these ecosystems. The study of plant communities in the ditches in the post-bog meadows habitat of the Supraśl Dolna valley structure in 2010–2020 was carried out. There were 23–27 species of plants in the ditches. Species diversity did not change significantly during this period, while changes in individual species’ coverage and viability were found. The species were classified into two rush communities: reed rush ( Phragmitetum australis) and rush ( Phalaridetum arundinaceae). As a result of the lack of maintenance of the ditches, an invasive species of flapped barbed ( Echinocystis lobata) was found. The natural valorization carried out by the Oświt method showed that plant communities in the drainage ditches are in the lowest valorization classes.

8

Feeding intensity and daily mussel consumption of Rapa whelk (Rapana venosa) in the north-western Black Sea

Stadnichenko Svitlana, Kurakin Aleksandr

Oceanological and Hydrobiological Studies

|

2022

|

Vol. 51, No. 4

334--354

EN

Based on an experiment carried out in the north-western Black Sea (Snake Island), the feeding behavior of the Rapa whelk (Rapana venosa Valenciennes, 1846) was analyzed in relation to its size (N = 58; shell height: 30–90 mm). Mediterranean mussels (Mytilus galloprovincialis Lamarck, 1819) were placed in experimental cages with R. venosa to be used as food. It was found that the size of the prey was determined by the size of the predator. The mussels with a shell length of 20−40 mm were most affected by R. venosa. It was determined that the predator’s contribution to the deposition of mussel shells in the bottom sediments is also associated with its size. Feeding intensity varies from 41 mg to 99 mg of the total mass of mussels per 1 g of the total mass of R. venosa per day, depending on the size of the predator. The daily consumption of mussel soft tissue varied from 0.189 g ind.−1 per day−1 in small R. venosa specimens to 0.917 g ind.−1 per day−1 in large predators. Regression equations were obtained between the length and mass of the mussels consumed (total mass, soft tissue mass and shell mass) and the shell height of the predator.

9

The uselessness of cytochrome oxydase gene analysis for genetic identification of selected Gobiidae species from some European countries

Kiełpińska Jolanta, Czerniejewski Przemysław, Adamkowska Natalia, Uzunova Eliza

Journal of Water and Land Development

|

2022

|

Special Issue

8--14

EN

The family Gobiidae is the largest teleost family, consisting of more than 2,000 species in more than 200 genera. They have adapted to a wide range of habitats, inhabiting mostly marine and brackish waters. Recently invasive Ponto-Caspian gobies have caused significant changes to the structure of fish assemblage throughout the European waters. The aim of the study was to verify the possibility of identifying three species of the genus Gobiidae based on the analysis of the mitochondrial region of the cytochrome oxidase subunit 1 (COI) gene. 339 samples originated from seven countries and 17 different sites were investigated. Qualitative and quantitative assessment of the extracted DNA was conducted by measuring light absorbance and electrophoretic separation. Approximately 650-bp (base pairs) fragments were amplified from the 5' region of the mitochondrial COI with the PCR (polymerase chain reaction) reaction. Sequences of 652 bp were obtained and compared with reference sequences in the National Center for Biotechnology Information (NCBI). Based on the sequence analysis, we determined that in the analysed geographical regions, the goby preliminary identified morphologically as the round goby was represented by three species: round goby (Neogobius melanostomus), tubenose goby (Proterorhinus marmoratus), and monkey goby (Neogobius fluviatilis). The latter two are newly reported for their new habitats. Genetic characterisation of such populations offers the opportunity to assess their genetic stability, which provides agencies managing the aquatic environment in EU countries with a tool for revising the legislation, including regulations relevant for updating the status of native and invasive species in European waters.

10

Phenology of the Alien Invasive Plant Species Prosopis juliflora in Arid and Semi-Arid Areas in Response to Climate Variability and Some Perspectives for Its Control in Ethiopia

Shiferaw Wakshum, Bekele Tamrat, Demissew Sebsebe, Aynekulu Ermias

Polish Journal of Ecology

|

2020

|

Vol. 68, nr 1

37--46

EN

This study aims to (i) evaluate the phenology of Prosopis juliflora (Prosopis), (ii) investigate the effects of climate variability (temperature and precipitation) on the phenology of Prosopis, and (iii) assess the critical months of seed dispersal for the species management. Monthly data for phenology events: leafing, flowering, green and mature pods were collected from 8 stems of Prosopis trees at each of two localities in Ethiopia during 2016/2017. In Amibara district we found that relative abundances of green leaves, flowering, green pods, and mature pods were 91, 15, 9, and 2% in order. However, these were less than by 8, 53, 91, and 90%, respectively in Awash Fenatle district. The lowest proportions of mature and green pods were recorded in the dry season and the highest in the spring season. We recorded the highest and lowest relative abundances of flowering between November and December, and January and February, respectively. In this study, both temperature (F = 2.01, P = 0.04) and precipitation (F = 2.85, P = 0.01) had shown significant effects on the relative abundances of green leaves but insignificant effects on other phenology stages. Higher green leaf abundances were recorded during high rainfall, whereas lower abundances of leaves were recorded in high temperatures. But, the relative abundances of Prosopis leaves showed inconsistent with the variations of precipitation. Thus, awareness creation for stake holders about the phenology calendar of Prosopis should be given to abandon the invasiveness of the species towards the prime grazing lands in the region.

11

Impact of Agriculture Intensification on the Floristic Diversity of the Forest-Field Ecotone

Skrajna Teresa

Polish Journal of Ecology

|

2020

|

Vol. 68, nr 1

47--66

EN

The aim of the research was to study 20-year changes in the floristic richness of the vegetation and soil diaspore bank of agroceonoses and adjacent midfield woodlots, as a result of the intensification of agricultural production, and the role of the ecotone in the preservation of field weeds. The studies were conducted in two periods, the first between 1996 and 1998 and the second between 2016 and 2018, on 12 permanent plots located in a transition zone between agroceonoses and woodlots. The width of the ecotone zone was determined with a linear transect that crossed both communities. The study of vegetation was conducted using the Braun-Blanquet method. During each period, soil diaspore reserves were determined. A large decrease of approximately 30% in the number of species was noted in the agroceonoses, while there were minor changes in the wood communities. With only slight variation during the research, floristic diversity of the soil diaspore bank in those habitats was poorer than vegetation diversity. The ecotone phytoceonoses had the highest species richness. They showed greater floristic similarity to the wood phytoceonoses than to agroceonoses. In the transition zone a clear boundary was observed, dividing those two communities. The ecotone was a refuge for field species, including rare and endangered ones. The species composition of the ecotone soil diaspore bank was poorer than the composition of the flora and showed greater similarity to the species diversity of the agroceonoses. Additionally, a significant relationship between species richness and habitat conditions was noted.

12

The role of abiotic and biotic factors in interspecific competition of Polish crayfish : comprehensive literature review

Wiśniewski Kamil, Szarmach Daniel, Poznańska-Kakareko Małgorzata

Oceanological and Hydrobiological Studies

|

2020

|

Vol. 49, No. 4

428--441

EN

Invasive species are those that have been transferred by humans out of their natural range. Native crayfish species in Polish waters include: Astacus astacus and Pontastacus leptodactylus, whereas invasive species are: Pacifastacus leniusculus, Faxonius limosus, Procambarus clarkii and Procambarus virginalis. The objective of this study was to determine how abiotic and biotic environmental factors contribute to interspecific competition of Polish crayfish based on the available literature. Abiotic factors affecting the interspecific competition include tolerance to extreme pH values, calcium ion content, temperature, oxygenation, water salinity, preferred substrate and the type of water bodies. Biotic factors are, inter alia, pathogens, food base, plant cover and interactions in the prey–predator system, as well as interactions between crayfish species. The most important abiotic factors are water temperature and oxygenation, while the most important biotic factor is the crayfish plague – a deadly disease for native species. Each invasive species has a different set of traits and adaptations that enable a successful invasion. However, a successful invasion of a given species is not determined by one, but many adaptations that coexist.

13

Growth parameters of invasive gibel carp Carassius gibelio (Bloch, 1782) in Lake Marmara (Turkey)

Ilhan Ali, San Hasan M, Kurtul Irmak

Oceanological and Hydrobiological Studies

|

2020

|

Vol. 49, No. 4

383--390

EN

The objective of this study was to determine growth parameters, such as age–length and length–weight relationships, as well as condition factors and sex ratio, of the Carassius gibelio (Bloch, 1782) population in Lake Marmara (western region of Turkey), which is one of the most important fishing areas. Fish were caught on a monthly basis by gillnets and trammel nets (mesh size 10–50 mm) between March 2012 and February 2013. A total of 1058 specimens (809 females and 249 males) were examined. The female–male ratio was 1:0.31. The maximum age was determined as VI and V for females and males, respectively. The total length of females and males ranged from 10.0 to 27.5 cm and from 10.2 to 24.0 cm, respectively. Their weight varied from 17.1 to 378.4 g and from 17.7 to 244.9 g, respectively. Length–weight relationship parameters were a = 0.014 and b = 3.040 for females and a = 0.015 and b = 3.039 for males. Von Bertalanffy growth parameters of the C. gibelio population were as follows: L∞ = 35.86 cm, k = 0.189 year−1, t0 = −1.238 years. Minimum and maximum condition factors were 1.56 for females in October and 1.82 in May and 1.67 for males in September and 1.94 in January.

14

Body size, condition, growth rate and parasite fauna of the invasive Perccottus glenii (Actinopterygii: Odontobutidae) from small watercourse in the Vistula River basin, Poland

Czerniejewski Przemysław, Linowska Angelika, Brysiewicz Adam, Kasowska Natalia

Journal of Water and Land Development

|

2020

|

no. 44

33--42

EN

For the last few decades there have been reports not only of the occurrence of new invasive species of European watercourses, but also their increasing expansion. One of such species is the Amur sleeper (Perccottus glenii). The present work contains assessment of age and length distribution, condition as well as growth rate and analysis of the parasite fauna of the Amur sleeper from the waters of the Vistula River tributary in its middle course (the Habdziński Canal). During the catch performed in 2017 and 2019, the total of 177 Amur sleepers were recorded in the studied watercourse and a statistically significant sex structure disproportion was observed. Among the specimens caught in 2017 dominant were fishes with lengths of 50.1–60.1 mm whereas in 2019 the majority of the Amur sleeper specimens measured 30.1–50.0 mm. Six age groups were recorded among the caught fish with a clear prevalence of specimens aged 1+ (70.06%). The most frequently recorded parasite of P. glenii was non-quantifiable Trichodina rostrata ciliate for which the Amur sleeper from the Polish waters appeared to be a new host. Moreover, the presence of an acanthocephalan Acanthocephalus lucii, not recorded in Poland in this host before, was observed in the chyme. Also, accidental presence of larvae of the Opisthioglyphe ranae tremadote, which is a parasite typical of amphibians, was also recorded. Despite unfavourable habitat conditions and increased volumes of biogenic substances in the waters of the Habdziński Canal, the Amur sleeper found convenient conditions to reside in this small watercourse.

15

Diet and feeding ecology of Eriocheir sinensis on the Polish coast of the Baltic Sea and in the Tagus Estuary, Portugal

Wójcik-Fudalewska Dagmara J., Normant-Saremba Monika, Kolasa Agata, Anastácio Pedro M.

Oceanological and Hydrobiological Studies

|

2019

|

Vol. 48, No. 3

236--246

EN

The feeding ecology of the Chinese mitten crab Eriocheir sinensis was studied by analyzing the stomach fullness and its content with regard to sex, size and brackish water habitats occurring on the coast of the Baltic Sea (Gulf of Gdańsk and Vistula Lagoon, Poland) and the Atlantic (Tagus Estuary, Portugal). The presented results show that neither the site, sex (except the Gulf of Gdańsk) nor the size of an individual had a significant (p > 0.05) effect on the stomach fullness of E. sinensis. However, the type of food consumed was significantly (p < 0.05) correlated with the inhabited locality. The stomachs of crabs contained the remains of animal and plant origin, as well as detritus. The remains of animals (Bivalvia, Amphipoda, Gastropoda and Polychaeta) were more frequently found in the crabs from the Gulf of Gdańsk, while the remains of plants (Tracheophyta, Chlorophyta) were most often found in the stomachs of crabs from the Vistula Lagoon and the Tagus Estuary. Detritus was found only in the Gulf of Gdańsk and the Vistula Lagoon. Research indicates that the feeding ecology of omnivore E. sinensis is habitat specific, which should be taken into account when assessing the risk associated with this invasive species.

16

Life in sympatry : coexistence of native Eurytemora affinis and invasive Eurytemora carolleeae in the Gulf of Finland (Baltic Sea)

Sukhikh Natalia, Souissi Anissa, Souissi Sami, Holl Anne-Catherine, Schizas Nikolaos V., Alekseev Victor

Oceanologia

|

2019

|

No. 61 (2)

227--238

EN

The invasion of exotic species into native ecosystems is becoming a crucial issue in global biology. Over the last ten years, at least 45 invasions of aquatic species have been reported in the eastern part of the Gulf of Finland; the majority of them were introduced through ballast water. Recently, invasion of the estuarine calanoid copepod Eurytemora carolleeae (Temoridae), originating from North America, has been reported in several European estuaries and particularly in the Gulf of Finland. This species is morphologically very similar to the native Eurytemora affinis, but it is easily discriminated by molecular markers. In this study, we monitored the distribution area of the invasive copepod species in European waters, as well as the population structure of (native) E. affinis and (invasive) E. carolleeae, from 2006 to 2018 in the Gulf of Finland. The population density of E. affinis was significantly higher, compared to E. carolleeae, during most of the study period. The only exception was Neva Bay in 2010, wherein the invasive species dominated possibly due to high temperatures and differences in the levels of fish predation. The reproductive performance of E. carolleeae was also higher than that of E. affinis. These results show different population dynamics between the two species. It was revealed that invasive E. carolleeae develops in some of the very same habitats as native E. affinis, thereby potentially becoming a significant component of the zooplankton in the studied area. Moreover, invader has the potential to displace native E. affinis.

17

Age structure, condition and length increase of the topmouth gudgeon (Pseudorasbora parva Schlegel 1842) in non-native populations of small rivers of Poland

Czerniejewski Przemysław, Zatoń Kinga, Kasowska Natalia, Brysiewicz Adam

Journal of Water and Land Development

|

2019

|

no. 40

113--118

EN

Monitoring studies of ichthyofauna, in particular non-indigenous species, are an important element of research on aquatic ecosystems. This information is essential for modelling population growth and predicting rates of expansion, quantifying ecological impacts and assessing the efficacy of removal and control strategies. Actually, the most compelling fish invasion in Polish freshwaters is arguably the accidental introduction of the topmouth gudgeon (Pseudorasbora parva). Age and lengths structure, condition factor and growth rate of the invasive populations of the topmouth gudgeon from small Polish rivers was examined. The samples were collected from the rivers: Molnica (n = 41), Myśla (n = 21) and Wardynka (n = 101) soon after the invasion was recorded (2017). Estimated ages of topmouth gudgeon ranged from 1+ to 3+ for the Myśla River, from 1+ do 4+ for the Molnica River, and from 1+ to 5+ for the Wardynka River. The fish from the Molnica River was characterised by the lowest total and standard length (TL, SL), weight, and highest condition. The results of back-calculations and the parameters of von Bertalanffy’s growth equation revealed distinct disproportions in the standard length (mm) in individual age groups (Molnica River: Lt = 54.94 [1 – e–0.68885 (1 – 0.003404)], Myśla River: Lt = 55.39 [1 – e–0.74921 (1 – 0.030962)], Wardynka River: Lt = 66.33 [1 – e–0.69348 (1 – 0.369505)]). The introduction of the topmouth gudgeon occurred in the upper and medium sectors of small rivers, but in subsequent years the species migrated to new sites further downstream and this may have affected the native ichthyofauna.

PL

Badania monitoringowe ichtiofauny, w szczególności gatunków nierodzimych, są ważnym elementem badań nad ekosystemami wodnymi. Informacje te są niezbędne do modelowania wzrostu populacji i przewidywania tempa ekspansji, ilościowego określania skutków ekologicznych i oceny skuteczności strategii eliminacji tych ryb z wód rodzimych oraz ich kontroli. Jednym z najbardziej interesujących gatunków inwazyjnych w świecie ryb w polskich słodkowodnych wodach jest prawdopodobnie przypadkowe wprowadzenie czebaczka amurskiego (Pseudorasbora parva). W pracy analizowano strukturę wieku i długości, współczynnik kondycji i tempo wzrostu inwazyjnych populacji czebaczków amurskich z małych cieków w Polsce. Ryby złowiono w 2017 r. z rzek: Molnica (n = 41), Myśla (n = 21) i Wardynka (n = 101). Szacowany wiek czebaczków amurskich wynosił od 1+ do 3+ (Myśla), od 1+ do 4+ (Molnica) i od 1+ do 5+ (Wardynka). Ryby z Molnicy cechowały się najmniejszą długością całkowitą i długością ciała (TL, SL) oraz masą osobniczą. Odczyty wsteczne i parametry równania wzrostu von Bertalanffy’ego ujawniły wyraźne dysproporcje w długości całkowitej w poszczególnych grupach wiekowych (rzeka Molnica: Lt = 54,94 [1 – e–0,68885 (1 – 0,003404)], rzeka Myśla: Lt = 55,39 [1 – e–0,74921 (1 – 0,030962)], rzeka Wardynka: Lt = 66,33 [1 – e–0,69348 (1 – 0,369505)]). Wprowadzenie czebaczka amurskiego miało miejsce w górnej i środkowej strefie małych cieków, ale w kolejnych latach gatunek ten może migrować do nowych miejsc zlokalizowanych w dolnych odcinkach rzek i może wpływać na rodzimą ichtiofaunę.

18

The Invasive Asian Clam Corbicula fluminea in Polish Rivers : The Importance of Thermal Discharge from Power Plants for Its Spread

Urbańska M., Andrzejewski W., Riccardi N., Gierszal H., Golski J.

Polish Journal of Ecology

|

2018

|

Vol. 66, nr 1

70--75

EN

So far in Poland, the Asian clam Corbicula fluminea has been reported from the Oder (Odra) and Vistula River. Its new population has been discovered in the Warta-Gopło Canal in Konin (central Poland), where water temperature can reach 34°C, as the canal is a part of a power plant lake cooling system. The spatial distribution of C. fluminea was found to be very uneven and that is probably why this species was not found during earlier research. The highest density of C. fluminea was 78 ind.·m-2 at the site where water flow was the fastest (2.49 m·s-1), providing sufficient oxygenation of the water. The results suggest that existing information about the distribution of C. fluminea may be far from complete because the clam can be present also in the habitats that were not regarded as suitable for the species according to earlier reports, and therefore have not been monitored for its presence.

19

Różnorodność florystyczna dawnego parku dworskiego w Rzeszowie-Zalesiu

Szczurowski Ł., Oklejewicz K.

Polish Journal for Sustainable Development

|

2018

|

T. 22, cz. 1

97--106

PL

Na obszarze dawnego parku dworskiego w Rzeszowie-Zalesiu zinwentaryzowano 250 gatunków roślin naczyniowych, z czego 187 stanowiły taksony rodzime i trwale zadomowione. Taksony trwale zadomowione reprezentowane były przez 19 gatunków archeofitów i 16 gatunków kenofitów, w tym 13 inwazyjnych. Odnotowano występowanie 57 gatunków uprawianych, 3 gatunków przejściowo zdziczałych z uprawy oraz 3 gatunków o niepewnym statusie we florze Polski. Odnaleziono również nieutrwalonego mieszańca międzygatunkowego. Określono ponadto poziom synantropizacji flory badanego terenu, wykorzystując następujące wskaźniki liczbowe: antropofityzacji (WAn = 38%), archeofityzacji (WAr = 10,16%), kenofityzacji (WK = 8,56%), modernizacji (WM = 45,71%) oraz stopnia labilności flory (WF = 1,2%).

EN

In the territory of the post-manorial park in Rzeszów-Zalesie the occurence of 250 species of vascular plants were inventoried, of which 187 were native and permanently established taxa. Permanently established species were represented by 19 species of archaeaophytes and 16 species of kenophytes, including 13 invasive species. There were 57 cultivated species, 3 ergasiophygophytes and 3 species of uncertain status in the Polish flora. An unpreseved interspecific hybrid has been also discovered. The level of synanthropization of the studied area was determined by using indicators of the antopogenic transitions of flora: anthropophytysation (WAn = 38%), archaeophytysation (WAr = 10,16%), kenophytysation (WK = 8,56%), modernization (WM = 45,71%) and level of lability of flora (WF = 1,2%).

20

Rozmieszczenie stanowisk inwazyjnego żółwia czerwonolicego (Trachemys scripta elegans) (Wied, 1838) w województwie zachodniopomorskim (północno-zachodnia Polska)

Czerniejewski P., Tański A., Najbar B., Kasowska N.

Chemistry, Environment, Biotechnology

|

2018

|

Vol. 21

42--45

PL

Wody Polski zasiedla jeden rodzimy gatunek żółwi - żółw błotny (Emys orbicularis Linnaeus, 1758), którego najczęściej izolowane populacje na terenie niemal całej Europy sukcesywnie zmniejszają swoje zasięgi. Oprócz powszechnej i postępującej degradacji ich wodnych oraz lądowych siedlisk, w obrębie niektórych stanowisk na ich kondycję wpływa także pojawienie się obcych gatunków zwierząt, w tym żółwia czerwonolicego (Trachemys scripta elegans Wied, 1838). W artykule przedstawiono wyniki obserwacji miejsc bytowania żółwi czerwonolicych na terenie województwa zachodniopomorskiego poczynione w latach 2008-2015. Dotychczas gatunek ten znany był ze stanowisk zlokalizowanych na terenie niemal całej Polski, ale brak było konkretnych doniesień o jego bytowaniu w północno-zachodniej części kraju. W ostatnich latach w tej części kraju notuje się wzrost liczby doniesień stwierdzających występowanie tego gatunku. Dokonane obserwacje uzupełniają informacje na temat rozmieszczenia tego gatunku w Polsce.

EN

Polish waters populated by a native species of turtles - pond turtle (Emys orbicularis Linnaeus, 1758), who is the most isolated population in nearly all European countries gradually reduce their ranges. In addition to the universal and progressive degradation of water and land habitats within certain positions on their condition also affects the appearance of alien species, including red - eared slider (Trachemys scripta elegans Wied, 1838). The article presents the results of observations of living red - eared slider in West Pomerania province made in 2008-2015. So far, this species was known for his positions located throughout almost the entire Poland, but there were no specific reports of its be-ing in the northwestern part of the country. In recent years in this part of Poland there has been an increase in the number of reports of the occurrence of this species. The observations are supplemented by information on the distribution of this species in Poland.