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Wyświetlanie 1-10 z 32
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:
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
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:
Liczebność i rozmieszczenie głuszca w Polsce w XXI wieku
Population size and distribution of the capercaillie in Poland in the 21st century
Autorzy:
Zawadzka, D.
Żurek, Z.
Armatys, P.
Stachyra, P.
Szewczyk, P.
Korga, M.
Merta, D.
Kobielski, J.
Kmieć, M.
Pregler, B.
Krzan, P.
Rzońca, Z.
Zawadzki, G.
Zawadzki, J.
Sołtys, B.
Bielański, J.
Czaja, J.
Flis-Martyniuk, E.
Wediuk, A.
Rutkowski, R.
Krzywiński, A.
Powiązania:
https://bibliotekanauki.pl/articles/980118.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
lowiectwo
ptaki lowne
gatunki chronione
gluszec
Tetrao urogallus
wystepowanie
liczebnosc populacji
rozmieszczenie przestrzenne
Polska
wiek XXI
tetrao urogallus
species distribution
species abundance
refuges
poland
Opis:
The data on the distribution and number of the capercaillie Tetrao urogallus in Poland for the period from the end of the 20th century up to 2017−2018 is presented. The capercaillie is a sedentary forest grouse living in old mountain forests and within the boreal zone. Since more than a century, the decrease in the numbers of the species has been observed, interlinked with the extinction of isolated populations. Within the present borders of Poland, a 1925 questionnaire study noted 2200−2700 individuals. In the 1960s, the national population was estimated at 1700−2000 birds, living in five isolated populations. In 1985−1995, the population numbers of the capercaillie dropped to approx. 466−700 individuals in four regions, and in 2000 it was estimated at 470−570 birds. According to the results of the censuses performed in 2017−2018, the size of the capercaillie population risen to 523−631 individuals and 59−69 lekking grounds. Currently the capercaillie occurs in four isolated regions. These are the Western Carpathians (the Beskid Sądecki, Tatry, Gorce, Babia Góra, Beskid Żywiecki, and the Beskid Śląski ranges) where 284−326 individuals live and 35−41 leks are active. In the Solska and the Lasy Janowskie Forests (Lublin region), the population was estimated at 132−184 individuals and 12−13 lekking grounds. In the Augu− stów Forest (Podlasie region) 36−46 individuals and 5−7 leks were found. In the Bory Dolnośląskie Forest, where native capercaillies got extinct during the last decade, the reintroduction program resulted in the rebuilding of their 65−75 population (with 6−7 leks). The restitution of the species in the Piska Forest has begun. During the last 20 years, populations in the Carpathian national parks have been stable, although fluctuating in numbers. The increase in the number of individuals in the Augustów Forest as well as in the Sądecki and Beskid Śląski Mountains is an after−effect of the release of birds from breeding centers or translocations. In other strongholds, fluctuations or decreases have been recorded, including wisible in the Beskid Żywiecki Mountains.
Źródło:
Sylwan; 2019, 163, 09; 773-783
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Species composition and abundance dynamics of slugs (Gastropoda terrestria Nuda) in urban conditions
Autorzy:
Sionek, R.
Kozlowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/83295.pdf
Data publikacji:
1999
Wydawca:
Uniwersytet Mikołaja Kopernika. Wydział Biologii i Ochrony Środowiska. Stowarzyszenie Malakologów Polskich
Opis:
A total of 5111 slug specimens of 8 species were caught in 1994–1996 in an urban habitat in Rzeszów (SE Poland), the most abundant being Arion rufus (L.). Other abundant species were: Arion fasciatus (Nilsson, 1822) Deroceras reticulatum (O. F. Müll.) and Limax maximus L. The abundance of slugs varied between the seasons and depended on weather conditions (rainfall, temperature, air humidity); reaction to frosty winters varied between species.
Źródło:
Folia Malacologica; 1999, 07, 2
1506-7629
Pojawia się w:
Folia Malacologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Species composition, seasonal abundance and population structure of chaetognaths in Admiralty Bay (Antarctic)
Autorzy:
Bielecka, Luiza
Jerzak, Bartłomiej
Złoch, Ilona
Powiązania:
https://bibliotekanauki.pl/articles/2046835.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Antarctic
Body size
Chaetognatha
population structure
Taxa composition
Źródło:
Polish Polar Research; 2016, 37, 2; 303-324
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Polychaeta (Annelida) of Admiralty Bay: species richness, diversity and abundance
Autorzy:
Siciński, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/2052424.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Antarctica
Polychaeta
biodiversity
Źródło:
Polish Polar Research; 2000, 21, 3-4; 153-169
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
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:
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:
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
Wyświetlanie 1-10 z 32

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