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

Znaleziono wyników: 3

Liczba wyników na stronie
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych:  synurbization process
help Sortuj według:

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

A comparison of common breeding bird populations in Hamburg, Berlin and Warsaw

100%
Witt K., Mitschke A., Luniak M.
Acta Ornithologica
|
2005
|
tom 40
|
nr 2
139-146
Avifaunas of three large cities (Hamburg, Berlin and Warsaw) situated in the northern lowlands of Central Europe along an 850-km-long west-east line were compared. Estimates of several species' breeding populations in these cities were used to calculate their densities in the total area of breeding habitat in each city used by the species in question. The relationship of the densities of several common species was compared. Of 39 species analysed, 18 showed higher densities in Hamburg, 4 in Warsaw and 2 in Berlin. A gradient of increasing density from Warsaw to Berlin and Hamburg (Western gradient) was found for 16 species: Columba palumbus, Troglodytes troglodytes, Prunella modularis, Turdus merula, T. philomelos, T. viscivorus, Sylvia atricapilla, Phylloscopus collybita, Ph. trochilus, Regulus regulus, R. ignicapillus, Garrulus glandarius, Parus cristatus, Certhia brachydactyla, Fringilla coelebs, Pyrrhula pyrrhula. An opposite (Eastern) gradient was found for only 3 species: Columba livia f. domestica, Oriolus oriolus and Passer domesticus. Suggested causes for most of the larger differences among the three cities in the densities of particular species are the variation in the richness of vegetation (higher in both German cities) and differences in the stage of synurbization (i.e. adaptation to the urban environment) of specific avian species. In a few cases, factors such as the geographic range of a species, the attitude of humans (in the case of the Feral Pigeon), and specific, slight variations in habitat are put forward to explain the differences found.
2

New habitats of Dermacentor reticulatus (Fabricius, 1794) in the Lublin Region

80%
Biadun W.
Polish Journal of Environmental Studies
|
2011
|
tom 20
|
nr 2
Given the progressive expansion of Dermacentor reticulatus, including its infiltration into urbanized biotopes, an attempt was made to verify a hypothesis on a change in this species’ habitat preferences. Studies were conducted in 2004 to 2008, chiefly during the period of the tick’s greatest activity. A total of 73 one-hour sessions of collecting were conducted in forests, meadows and wastelands of the Lublin region (Table 1). The marsh tick (also called the ornate cow tick) was found most regularly and in greatest numbers in open areas or young tree stands. Urban wastelands with a distinctly xerothermic character were found to be a particularly characteristic biotope (Table 2). This contradicts previous reports that wetland areas are its optimal habitat. Because this tick is a carrier of babesiosis and – probably – borreliosis (Lyme disease), the findings suggest an increased epidemiological threat right within city borders.
3

Characteristic features of animal populations under synurbization - the case of the blackbird and of the striped field mouse

80%
Gliwicz J., Goszczynski J., Luniak M.
Memorabilia Zoologica
|
1994
|
tom 49
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 1 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.