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

Znaleziono wyników: 7

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

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

The effect of age and mating date on some reproductive traits of Arctic fox vixens, Alopex lagopus

100%
Lanszki J., Udvardy J.
Zeszyty Naukowe. Przegląd Hodowlany
|
1996
|
tom 27
2

Otter diet in relation to fish availability in a fish pond in Hungary

100%
Lanszki J., Kormendi S.
Acta Theriologica
|
1996
|
tom 41
|
nr 2
The food composition of otters Lutra lutra (Linnaeus, 1758) was investigated in an artificially established fish pond of 12 ha in south-western Hungary between December 1991 and November 1994. In the fish pond fish farming was carried out with the introduction of different species during the first two years of the investi­gations, while the filling up of the pond with water and its planting did not come about in the third year. The diet of otters was examined by spraint analysis (873 samples). The most important prey of otters was fish amounting 40 to 100%; the variation was due to season, method of farming and density and composition of the fish stock available. There was a close relationship between the frequency of occur­rence of different fish species in the otter diet and the amount of fish available to the otters. The correlation coefficients (rp) were 0.56 (p < 0.05), 0.87 (p < 0.0001) and 0.93 (p < 0.0001) in the three years. Fish species that are predominant in the fish pond were the most frequent in the otter diet. Most of the fish eaten were below 50 g, ie 55, 88 and 90% respectively in the three years. Prey fish weighing more than 1000 g were found in scats only in the second year, and in a low proportion (1%). Economically important fish species constituted 33, 9 and 3% of the otter diet in the three years. The economic consequences of otter predation on fish are discussed.
3

Feeding habits and trophic niche overlap in a Carnivora community of Hungary

81%
Lanszki J., Kormendi S., Hancz C., Zalewski A.
Acta Theriologica
|
1999
|
tom 44
|
nr 4
The seasonal feeding habits of the red fox Vulpes vulpes (Linnaeus, 1758), the stone marten Martes foina (Erxleben, 1777), the stoat Mustela erminea Linnaeus, 1758, the badger Meles meles (Linnaeus, 1758) and the otter Lutra lutra (Linnaeus, 1758) were studied in south-west Hungary, in the course of four years. The habitat conditions, because of human influences, were different in the first and second two years. Diet was examined by scat analysis (238, 262, 67, 50 and 1033 samples, respectively). Small mammals, mainly rodents, were the most important prey for foxes, stone martens and stoats in winter and spring. In summer and autumn insects and fruit were added to fox and marten diet, while birds were added to stoat diet. The badger's main food resources were invertebrates (mainly insects) and maize and, in autumn, rodents. Domestic animals (mainly poultry and rabbit) occurred in the diet of the foxes and martens in all seasons, carcasses (mainly Cervidae) in the diet of these predators and in that of the badgers. The predominant prey of otters was fish, but when the abundance of fish declined, the consumption of amphibians increased. Predation on game birds and hare was not significant. In all seasons, niche overlap was high between foxes, martens and stoats. Niche overlap between these species and the badger increased from spring to autumn. Niche overlap between terrestrial predators and the otter was low. The diet of predators were different between the 1st and 2nd periods.
4

The effect of age on sexual activity of Arctic fox and of silver fox males

81%
Lanszki J., Udvardy J., Lengyel K.
Zeszyty Naukowe. Przegląd Hodowlany
|
1996
|
tom 27
5

The effect of age and mating date on some reproductive traits of silver fox vixens, Vulpes vulpes

81%
Lanszki J., Udvardy J., Szendro Z.
Zeszyty Naukowe. Przegląd Hodowlany
|
1996
|
tom 27
6

Diet of wolves Canis lupus returning to Hungary

71%
Lanszki J., Markus M., Ujvary D., Szabo A., Szemethy L.
Acta Theriologica
|
2012
|
tom 57
|
nr 2
At the end of the nineteenth century, the wolf Canis lupus was extinct in Hungary and in recent decades has returned to the northern highland area of the country. The diet of wolves living in groups in Aggteleki National Park was investigated using scat analysis (n = 81 scats) and prey remains (n = 31 carcasses). Throughout the year wolves (average, minimum two wolves per year) consumed mostly wild-living ungulates (mean percent of biomass consumed, B% 97.2%; relative frequency of occurrence, %O 74.0%). The wild boar Sus scrofa was the most common prey item found in wolf scat (%B 35.6%) and is also the most commonly occurring ungulate in the study areas. The second most commonly occurring prey item in wolf scat was red deer Cervus elaphus (B% 32.8%). Conversely, prey remain analyses revealed wild boar as the second most commonly utilised prey species (%O 16.1%) after red deer (%O 67.7%). The roe deer Capreolus capreolus that occurs at lower population densities was the third most commonly utilised prey species. The importance of low population density mouflon Ovis aries, livestock and other food types was low. The results are similar to those found in the northern part of the Carpathian Mountains.
7

Late autumn trophic flexibility of the golden jackal Canis aureus

71%
Lanszki J., Giannatos G., Dolev A., Bino G., Heltai M.
Acta Theriologica
|
2010
|
tom 55
|
nr 4
The feeding habits of the golden jackal Canis aureus (Linnaeus, 1758) were compared using scat analysis in Hungary (temperate climate agricultural area), Greece (Mediterranean marshland), and Israel (Mediterranean agricultural area). Samples (84, 70 and 64 scats, respectively) were collected during late autumn, a period with capital importance to the long term survival of young jackals, during which they become independent. Predation of wild-living prey species was highest in Hungary, consisting primarily of small mammals (biomass estimation: 51.5%, mainly rodents), contrary to Israel and Greece, where scavenging on domestic animals dominated the diet of jackals (74%, mainly poultry and 62.6%, mainly goats, respectively). The highest consumption of wild ungulates (mainly wild boar) was found in Greece (15.7%), and plants in Hungary (39%). Bird consumption was low in all three areas. Reptiles, amphibians and fish occurred only in the diet of jackals in Greece and Israel, whereas invertebrates were eaten more frequently in Hungary. Jackal dietary composition was extremely variable between regions, strongly associated with human presence. These results illustrate the golden jackal as having a very variable diet, resulting from opportunistic feeding habits.
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.