Wyniki wyszukiwania - Biblioteka Nauki

1

Distribution and numbers of wolves in Poland

100%

Okarma H.

|

nr 29-43

2

Wilk

75%

Okarma H.

|

1997

|

tom 02

80

3

Potrzeba ochrony wilka w Polsce

75%

Okarma H.

|

nr 12

12-13

4

Caching prey in trees by Eurasian lynx

63%

Cerveny J. , Okarma H.

|

nr 4

EN

Two cases of Eurasian lynx Lynx lynx (Linnaeus, 175S) caching prey (roe deer Capreolus capreolus) jn trees were documented: in southeastern Polami in February 1996 and in southwestern Czech Republic in November 19911. Both carcasses were

5

Plany łowieckie a drapieżniki

51%

Schmidt K. , Kowalczyk R. , Jedrzejewski W. , Okarma H.

|

nr 01

6

Atlas ssaków Polski

51%

Okarma H. , Bogdanowicz W. , Rychlik L. , Szuma E.

|

tom 67

|

nr 1

7

Rysie w Karpatach

51%

Okarma H. , Sniezko S. , Smietana W. , Kubacki T.

|

nr 02

23-25

8

Zwierzeta kopytne Puszczy Bialowieskiej

51%

Jedrzejewska B. , Okarma H. , Jedrzejewski W. , Milkowski L.

|

nr 06

12-14

9

Spatial organization and social relations in the Eurasian lynx population in Bialowieza Primeval Forest, Poland

51%

Schmidt K. , Jedrzejewski W. , Okarma H.

|

nr 3

EN

The home range size, spacing pattern and intraspecific relations in the lynx Lynx lynx (Linnaeus, 1758) were studied in Białowieża Primeval Forest (eastern Poland), in 1991-19S6. Eighteen lynx (11 males and 7 females) were captured and radio-collared. The mean autumn-winter home range size was 165 km2 for males and 94 km2 for females. In spring-summer, it was 143 and 55 km2, respectively. The mean life-time home ranges were 248 km" for males and 133 km* for females. Male home range size did not change significantly between autumn-winter and spring-summer seasons, however, their ranges increased by 40-90% just before and during the mating season (December-March). The home range of females in the autumn-winter season was almost twice as large compared with the spring-summer period (94 vs 55 km2). The smallest home ranges were observed in breeding females during the two months after parturition (10 kmJ) and these grew until the following spring. The home ranges calculated for 5-month periods shifted on average 4 km in adult males, 2.7 in adult females and 4.7 km in subadult males. One of the farthest shifts in the adult male range (8.7 km) was explained by the death of a neighbouring resident. The average overlap between adult males' ranges was 30%, while those between females was 6%. The largest overlap occurred between adult males and females (62%) as well as between adult and subadult males (75%). The lynx showed a tendency to avoid each other. The average distance between neighbouring adult males was 11.6 km, and they were never found closer than 1 km to each other. The average distance between neighbouring females was 8.1 km. Besides a few meetings between males and females (during and outside the mating season), they were located separately (4.4 km from each other, on average), in 93% of the cases an adult female was recorded with her dependent kittens. It was concluded that home range size and spacing pattern in male lynx depend on the distribution of females, whereas spacing in females was determined by food-related factors.

10

The occurrence of wildcat in the Polish Carpathian Mountains

51%

Okarma H. , Sniezko S. , Olszanska A.

|

nr 4

EN

The contemporary occurrence of wildcat Felis silvestris (Schreber, 1775) in the Polish part of the Carpathian Mountains was evaluated in 1998-2000 with personal inquiries in all forest inspectorates of Krosno and Kraków Regional Directorates of State Forests and five national parks (NP). Additional information on the presence of wildcat was collected by snow tracking in three winter seasons: 1998/1999 through 2000/2001. Wildcat presence was confirmed only for Bieszczady Mountains, Pogórze Przemyskie, and Beskid Niski Mountains (13 forest inspectorates and 2 national parks: Bieszczady NP and Magurski NP).

11

Z plachta na... wilka, czyli dawne polowania w Puszczy Bialowieskiej

45%

Jedrzejewska B. , Milkowski L. , Jedrzejewski W. , Okarma H. , Buniewicz A. N.

|

nr 02

26-27

12

Predation of Eurasian lynx on roe deer and red deer in Bialowieza Primeval Forest, Poland

45%

Okarma H. , Jedrzejewski W. , Schmidt K. , Kowalczyk R. , Jedrzejewska B.

|

nr 2

EN

Patterns of lynx Lynx lynx {Linnaeus, 1758) predation on ungulates were studied in the Polish part of Białowieża Primeval Forest (580 km ) from scats and prey remains of iynx between 1985-1996, and radiotracking of IS lynx between 1991-1996, Cervids were the main prey and constituted 90% of food biomass consumed (analysis of faeces) and 84% of prey killed. Roe deer Capreotus capreolus was positively selected by all lynx (though stronger by females and subadults than by adult males). Fawns and adult roe deer of both sexes were preyed on in proportion to their abundance in the population. Red deer Ceruus elaphus was taken less often than would have been expected at random, and fawns were positively selected by lynx. On average, lynx spent 76 h (3.2 days) feeding on a killed deer (from 38 h in a female with 3 kittens to 105 h in single adult females). Mean searching time (ie time from leaving the remains of one deer to killing another one) was 52 h (2.2 days); from 10 h in a female with 3 young to 104 h in subadults. Thus, the average kill rate by lynx was one deer per 5.4 days. Predation impact of lynx population on roe and red deer was estimated in 1991-1996, when recorded numbers were 288-492 roe deer and 359-607 red deer per 100 km" in late winter (March), and 501-820 roe deer and 514-858 red deer per 100 km" in spring (May/June). During that period densities of deer declined markedly due to deliberately elevated hunting harvest by forestry personnel, aimed at reduction of game damage to silviculture. Densities of adult lynx were little variable (2.4-3.2 inds/100 km2), but reproduction rate strongly varied in response to deer decline, from 0.67 juv/adult lynx in 1991/92 to 0.25 juv/adult lynx in 1995/96. Annually, lynx population killed 110-169 roe deer/100 km2, which constituted 21-36% of spring (seasonally highest) numbers of roe deer. Lynx predation was the most important factor of roe deer mortality. Furthermore, lynx population took 42-70 red deer/100 km2 annually, which constituted 6-13% of spring number of red deer. In red deer mortality, lynx predation played an inferior role to hunting harvest and wolf predation.

13

Naukowcy o propozycji PTOP "Salamandra"

38%

Tomek A. , Jamrozy G. , Bonczar Z. , Wajdzik M. , Kubacki T. , Okarma H.

Zachodni Poradnik Łowiecki. Kwartalnik Wojewódzkiego Sejmiku Łowieckiego w Poznaniu

|

2013-2014

|

nr 1[45]

14

Wykorzystanie siedlisk przez dziki Sus scrofa na terenie Krakowa

38%

Bas G. , Bojarska K. , Sniezko S. , Krol W. , Kurek K. , Okarma H.

|

tom 73

|

nr 5

15

Large carnivores in the Carpathian Mountains: status and conservation problems

38%

Okarma H. , Dovchanych Y. , Findo S. , Ionescu O. , Koubek P. , Szemethy L.

|

tom 59

33-39

16

Ad vocem

38%

Okarma H.

|

nr 03

20-22

17

Występowanie i liczebność rysia w Polsce

32%

Okarma H.

Łowiec Polski

|

1989

|

nr 11

18

Selekcja jeleni przez wilki w Bieszczadach

32%

Okarma H.

|

nr 01