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1

Natal dispersal and recruitment of two Bonelli's Eagles Aquila fasciata: a four-year satellite tracking study

100%
Cadahia L., Lopez-Lopez P., Urios V., Soutullo A., Negro J. J.
Acta Ornithologica
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2009
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tom 44
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nr 2
To study natal dispersal and recruitment to the breeding population in Bonelli's Eagle, two nestlings were tagged with satellite transmitters in the Iberian Peninsula in 2002. Their monthly ranges and distances were computed and fitted to regression models to describe their general trend. One bird, a female, dispersed and settled rapidly in an area which she explored intensively during four years and which finally became her first breeding site. The natal dispersal distance was 441 km, and the bird cannot therefore be considered philopatric. The other bird, a male, alternated between long travelling episodes and settlement in particular areas, exploring different regions both distant from and close to his natal territory, but no breeding attempt could be confirmed after four years of tracking. The large distances we recorded confirm the potential for gene flow among populations but, in comparison with our results from previous studies, they suggest that Bonelli's Eagles may show high variation in their natal dispersal distances and use different dispersal strategies.
2

Ranging and parental care of the raccoon dog Nyctereutes procyonoides during pup rearing

100%
Drygala F., Zoller H., Stier N., Mix H., Roth M.
Acta Theriologica
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2008
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tom 53
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nr 2
Three pairs of raccoon dogsNyctereutes procyonoides (Gray, 1834) were observed by continuous radio-tracking (one 24-h session, once a week) during the first six weeks after parturition. Males spent noticeably more time (40.5% ±11.7 SD) alone with the pups than females (16.4% ±8.5 SD). Females had noticeably larger home ranges (95% kernel: 98.24 ha ±51.71 SD) than males (14.73 ha ±8.16 SD) and moved much longer daily distances (7368 m ±2015 SD) than males (4094 m ±2886 SD) in six weeks postpartum. The raccoon dogs left the breeding den in the 6th week after the birth of the pups.In situ video observation showed that the male carried prey to the den to provide the female and the litter with food. A clear division of labour took place among parents during the period in which the pups were nursed: males guarded the litter in the den or in close vicinity of it, while the females foraged to satisfy their increased energy requirements.
3

The use of telemetry to follow the migration of Polish Konik horse herd

84%
Smugala M., Pikula R.
Electronic Journal of Polish Agricultural Universities. Series Animal Husbandry
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2013
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tom 16
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nr 4
4

Seasonal movements of wisents (Bison bonasus L., 1758) in the Bieszczady Mountains (SE Poland)

84%
Pierzanowski K., Januszczak M., Woloszyn-Galeza A.
Biological Letters
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2012
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tom 49
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nr 1
5

Ranging behaviour of non-breeding Eurasian Griffon Vultures Gyps fulvus: a GPS-telemetry study

84%
Garcia-Ripolles C., Lopez-Lopez P., Urios V.
Acta Ornithologica
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2011
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tom 46
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nr 2
Little is known about the spatial ecology and ranging behaviour of vultures in Europe. In this paper we used GPS satellite telemetry to assess home-ranges of eight non-breeding Eurasian Griffon Vultures in Spain, trying to answer the main questions on when (i.e. the time of the day), how far (i.e. hourly and daily distances) and where vultures range (i.e. home-range size). Results indicated that vultures ranged extensively mainly in areas where traditional stock-raising practices and pasturing were still common, also including some vulture restaurants, which were visited occasionally. Eurasian Griffon Vultures concentrated their hourly and daily movements in the middle of the day, when the availability of thermal updrafts was higher, favouring foraging activities. The overall foraging range, calculated as Minimum Convex Polygon (MCP) (7419 km2), or as 95% and 50% kernel contours (4078 km2 and 489 km2, respectively), was higher than those reported in previous studies. The precise knowledge of the ranging behaviour and spatial parameters is particularly important for the conservation of scavenger species inhabiting human-dominated areas where human activities may jeopardize vulture populations in the long term.
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Content available remote

The cardiovascular effects of salidroside in the Goto-Kakizaki diabetic rat model

67%
Alameddine A., Fajloun Z., Bourreau J., Gauquelin-Koch G., Yuan M., Gauguier D., Derbre S., Ayer A., Custaud M. A., Navasiolava N.
Journal of Physiology and Pharmacology
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2015
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tom 66
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nr 2
7
Content available remote

The healing of NSAID-induced gastric lesions may be followed by small intestinal and cardiovascular side effects

67%
Filaretova L. P., Bagaeva T. R., Morozova O. Y., Zelena D.
Journal of Physiology and Pharmacology
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2011
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tom 62
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nr 6
8

Diet composition and habitat use of sympatric polecat and American mink in western France

67%
Lode T.
Acta Theriologica
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1993
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tom 38
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nr 2
Food habits of European polecat Mustela putorius Linnaeus, 1758 and of American mink Mustela vison Schreber, 1777 are compared by analysis of scats collected from two radiotracked animals in a marsh habitat over a 5 month period. Both predators take a wide range of prey but polecat consumes more rodents and feeds upon am­phibians in spring, whereas mink mainly preys on fish and birds. Dietary overlap results from the common utilization of rodent prey. Both predators reduce competition by intensive exploitation of different resources and by segregation in the space use.
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