Preferencje help
Polish version English version Język
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 22

Liczba wyników na stronie
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 2 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych:  urban habitat
help Sortuj według:

help Ogranicz wyniki do:
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 2 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
1

Low recapture rate in PIT marked urban populations of the common toad

100%
Mazgajska J., Mazgajski T. D.
Polish Journal of Ecology
|
2016
|
tom 64
|
nr 4
Individual marking is necessary for determining various elements of species ecology, but toe-clipping — a method frequently used in amphibian studies, is recently being questioned. Three water bodies (of 0.3 to 1.5 ha in size) used by common Bufo bufo for breeding, located within a large city (Warsaw, Central Poland), were chosen for the study. Captured toads had Passive Integrated Transponders (PIT) subcutaneously implanted under laboratory conditions. Marked toads were searched in consecutive breeding seasons. The recapture rate of males in particular ponds was up to 13% — much lower than in other studies carried out in non-urban habitats. 77% of re-trapped individuals were found in the next season after tagging. There were no differences in the frequency of re-trapped individuals in relation to the toe-clipping treatment, as some marked individuals had part of the toe (two phalanges) clipped for skelotochronological analyses. An individual from this group was observed to have regenerated the clipped toe after one year. We did not find any indication of better body condition among the re-trapped individuals when comparing them to the marked toads at the time they were first captured. The important advantage of PIT tagging is the fact that all individuals are marked in the same way and their handling is similar. This makes it possible to compare various demographic parameters (growth rate, survival etc.). In addition, the number of animals that can be permanently marked using PITs is several times higher than through the use of codes resulting from the clipping of fingers and toes.
2

Diurnal activity patterns of coypu in an urban habitat

100%
Meyer J., Klemann N., Halle S.
Acta Theriologica
|
2005
|
tom 50
|
nr 2
The ability of species to adapt to changing environmental conditions is a crucial need for surviving in human influenced landscapes. Especially non-indigenous species, which are flexible in their behaviour, may successfully enter and establish in new habitats. We compared the activity patterns of the invasive coypuMyocastor coypus (Molina, 1782) in an urban habitat in Germany with patterns observed in its native distribution range in South America as well as in areas, where it was introduced. In summer 1998 and winter 1999 a radio tracking study was carried out on six adult coypus, supplemented by count data on untagged animals. Whereas main activity in non-urban populations was recorded at night including dusk and dawn, coypus in the urban habitat were active during the day and early evening. We never observed animals between midnight and dawn. This reversal of activity patterns is attributable to deposition of human food in the city area during the daytime.
3

Bird community of inner La Plata City, Argentina

100%
Montalti D., Kopij G.
Acta Ornithologica
|
2001
|
tom 36
|
nr 2
During the years 1991-2000,101 bird species were recorded in the city of La Plata, Argentina, 47 of which were breeding ones. The most abundant species were: Zenaida auriculata, Columba livia, Funarius rufus, Pitangus sul- phuratus, Zonotrichia capensis and Passer domesticus. Columba maculosa, C. picazuro, Fumarius rufus, Turdus rufiventris and Molothrus bonariensis have increased in number, while Passer domesticus has decreased. Zonotrichia capensis may successfully compete for food with Passer domesticus. Sturnus vulgaris and Acridotheres cristatellus are new species in the breeding avifauna of La Plata city.
4
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Occurrence of Argas reflexus (Fabricius, 1794) (Ixodida, Argasidae) in urban habitat of south-eastern Poland

84%
Buczek A., Bartosik K.
Wiadomości Parazytologiczne
|
2011
|
tom 57
|
nr 4
5

Urban and forest-living blackbirds Turdus merula as hosts of Borreliella spp. infected ticks

84%
Gryczynska A.
Polish Journal of Ecology
|
2018
|
tom 66
|
nr 3
The effect of urbanisation on parasite prevalence, especially these associated with human diseases, such as Lyme borreliosis, is of high interest. The blackbird Turdus merula is a ground-feeding species particularly predisposed to constitute a Borreliella spp. (Lyme borreliosis causative agent) reservoir. So, the aim of the study was to examine if the tick infestation level and their Borreliella spp. infection prevalence differs in blackbirds resident in two disparate habitats in Poland – one highly urbanized (in Warsaw agglomeration) and the other forested (in Mazurian Lake region). The infection in ticks feeding on blackbirds was ascertained based on detection of bacterium DNA (PCR). The prevalence of tick infestation in urban and forest-living blackbirds was similar (90 and 91.7%, respectively) but the mean number of parasites per bird was markedly greater in the forest (4.0 ind.) than in the urban populations (1.5 ind.). Even though, the Borreliella spp. infection of the ticks was significantly greater in the urban (46.7%) than in forest habitat (35.4%). Additionally, in the urban site more birds carry at least one infected tick than in the forest. The results of the study seem to confirm the role of blackbirds in establishing Borreliella spp. reservoir. Special regard should be given to highly urbanized areas, where the relative increase in the relevance of birds as tick hosts and pathogen transmitters may pose high risk to public health. Thus, the study constitutes a small-scale but an important contribution to our understanding of the role of birds in maintenance of Borreliella spp. foci in urban habitats.
6

The Urban Biosphere Reserve (UBR) concept for sustainable use and protection of urban aquatic habitats: case of the Omerli Watershed, Istanbul

84%
Tezer A.
International Journal of Ecohydrology and Hydrobiology
|
2005
|
tom 05
|
nr 4
7

Impact of invasive Aster lanceolatus populations on soil and flora in urban sites

84%
Obratov-Petkovic D., Bjedov I., Nesic M., Belanovic Simic S., Dunisijevic-Bojovic D., Skocajic D.
Polish Journal of Ecology
|
2016
|
tom 64
|
nr 2
Invasive plants are one of the major treat to local communities and ecosystems in urban habitats. Aster lanceolatus Willd. is one of the most spreading invasive plant species in Serbia and to examine its impact on soil, flora and aboveground biomass in urban habitats we investigated the pH, electrical conductivity and concentration of trace elements (Zn, Cu, Ni, Mn) in four invaded and four uninvaded plots in urban habitats. We also studied floristic composition and floristic richness regarding these invasive plant populations. These parameters were assessed along transects arranged in the cross shape, running from the centre of the invaded area towards the peripheral uninvaded area. Trace elements were analysed using atomic absorption spectrophotometer. Statistical differences were analysed using ANOVA and post-hoc LSD-tests. The results showed an important decrease of the number of species and herbaceous cover under A. lanceolatus populations. There were no statistically significant differences between invaded and uninvaded patches when soil pH and electrical conductivity were considered. The concentration of Zn, Mn and Ni in the soil was higher in invaded areas. The content of Zn in aboveground biomass collected from invaded compare to uninvaded areas was higher. This study raises the possibility that invasive species changes soil characteristics and create conditions for their spreading.
8

Changes in the House Sparrow Passer domesticus population in cities and towns of Poland in 1960-2010

84%
Wegrzynowicz A.
Ornis Polonica
|
2013
|
tom 54
|
nr 4
9

Habitat preferences of Caucasian rock agama Paralaudakia caucasia (Sauria: Agamidae) in urban and natural habitats in Northeastern Iran

84%
Hosseinian Yousefkhani S. S., Aliabadian M., Zuffi M. A. L.
Polish Journal of Ecology
|
2018
|
tom 66
|
nr 1
In this study, we chose 61 plots along three randomly placed transects in urban and natural areas to examine Paralaudakia caucasia habitat preferences. Ten habitat characteristics found to affect the lizard occurrence were recorded in both habitat types. Based on ANOVA, distance to farmland, height of vegetation cover, percentage of cover of human structures, and slope orientation are significantly different between presence and absence plots. Using Principal Component Analysis, we found that the distance to farmland was the main factor predicted species presence in natural habitats. In urban habitats, the percentage of human structures was more important than other factors in predicting P. caucasia presence. The species is more abundant in regions with a low percentage of human-made structures. Other informative factors for species presence were distance from farmland and distance between refuges for urban and natural populations, respectively. Urban populations of P. caucasia appear to prefer areas outside of the city center, far from human structures, whereas natural populations appear to prefer areas away from villages where they may find higher densities of safe refuges. Isolated rocks in both urban and natural areas have an important role in predicting species presence acting because they act as refuges.
10

Structure of collembolan microcommunities of small isolated areas of urban plantations

84%
Kuznetsova N.
Polskie Pismo Entomologiczne
|
1995
|
tom 64
|
nr 1-4
11

Butterflies and moths [Lepidoptera] in urban habitats: the moths of Warsaw. I. Noctuidae, Pantheidae, Nolidae

84%
Winiarska G.
Fragmenta Faunistica
|
2002
|
tom 45
|
nr 2
12

Nesting of the House Martin Delichon urbica in the city of Poznan [1976-1978 and 1982-1989]

84%
Ptaszyk J.
Acta Ornithologica
|
2001
|
tom 36
|
nr 2
Observations of nesting populations of the House Martin were carried out on three study plots in the city of Poznań: a city centre area (599.0 ha) and two housing estates (567.1 ha and 125.6 ha), a total area of 1291.7 ha. Throughout the 1980s House Martin numbers increased continuously over the whole area, the greatest population density being 4.6 occupied nests per 10 ha. The number of breeding pairs in the city centre was stable, and the density there varied from 2.1 to 3.0 occupied nests per 10 ha. The highest density of occurrence was recorded in the new housing estates, where increases in the House Martin population were recorded. These was related to the construction of new buildings, which provided fresh nesting sites. The nests were built at heights from the first to the fifteenth storey. Over 96% of the nests in the housing estates were built in the corners of the window openings. In the entire study area the preferred nesting sites were on the southern (35.2%), northern (26.1%) and eastern (13.3%) sides of buildings. In the city centre the greatest number of nests had south-facing entrances, while in one of the other study plots, the entrances to most nests faced north. No more than 7% of the total number of martins' nests available in a given year were occupied by Passer domesticus.
13

Nest site and breeding habitat characteristics in urban Jackdaws Corvus monedula in Rome [Italy]

84%
Salvati L.
Acta Ornithologica
|
2002
|
tom 37
|
nr 1
14

Butterflies and moths (Lepidoptera) in urban habitats: the moths of Warsaw. III. Noctuoidea (second part): Notodontidae, Arctiidae, Lymantriidae

67%
Winiarska G.
Fragmenta Faunistica
|
2004
|
tom 47
|
nr 2
15

An audit of the ecological implications of remediation, management and conservation project involving urban aquatic habitats in Cape Town, South Africa with reference to their social and ecological contexts

67%
Day E., Ractliffe G., Wood J.
International Journal of Ecohydrology and Hydrobiology
|
2005
|
tom 05
|
nr 4
16
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Phylogenetic diversity of flaB gene among Borrelia spp. in Ixodes ricinus ticks from urban and semi-natural habitats

67%
Kowalec M., Szewczyk T., Welc-Faleciak R.
Annals of Parasitology
|
2016
|
tom 62
|
nr Suppl.
17
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Digenean trematodes from six species of birds (Passeriformes, Piciformes and Strigiformes) from north-western Poland

67%
Rzad I., Sitko J., Wysocki D., Stepniewski K.
Wiadomości Parazytologiczne
|
2011
|
tom 57
|
nr 4
18

Weather-dependent variation in the cold-season diet of urban Kestrels Falco tinnunculus

67%
Zmihorski M., Rejt L.
Acta Ornithologica
|
2007
|
tom 42
|
nr 1
107-113
19

Long-term changes in communities of Noctuidae, Pantheidae and Nolidae [Lepidoptera] of Warsaw city centre

67%
Winiarska G.
Fragmenta Faunistica
|
2003
|
tom 46
|
nr 1
20

Butterflies and moths [Lepidoptera] in urban habitats: II. The butterflies [Rhopalocera] of Warsaw

67%
Winiarska G.
Fragmenta Faunistica
|
2003
|
tom 46
|
nr 1
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 2 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.