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Czynniki motywujące podjęcie użytkowej hodowli bobrów europejskich zwierząt w Polsce

100%

Zurowski W.

Zeszyty Problemowe Postępów Nauk Rolniczych

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1981

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tom 259

2

Bóbr europejski w dolinie Biebrzy

100%

Zurowski W.

Zeszyty Problemowe Postępów Nauk Rolniczych

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1983

|

tom 255

3

Zastosowanie trankwiliny przy kojarzeniu par i łączeniu w grupy bobrów bobrow eu opejskich (Castor fiber L.)

100%

Zurowski W.

Medycyna Weterynaryjna

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1970

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tom 26

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nr 02

4

Building activity of beavers

100%

Zurowski W.

Acta Theriologica

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1992

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tom 37

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nr 4

Observations on the building activity of European beavers, Castor fi ber Linnaeus, 1758, were carried out in two dissimilar lakelands in Poland to which beavers were being reintroduced from 1974 to 1985. Reintroduced beavers occupied 62 sites, and lodges were built in 76% of the sites. Several sites contained two or more lodges. Most lodges had a circular or oval base (83%) and a conical side view (85%). The size of lodges differed significantly {p = 0.051) between the two lakelands, with larger lodges at sites characterized by water scarcity. Beavers built lodges immediately after their settlement in 50% of sites, while in the other sites lodges appeared 1-8 years later. Lodge construction is frequently related with the first appearance of kits. In the study area beavers built 27 dams in 17 sites, apparently to improve water conditions and to get safe access to new stores of winter food. Dams usually wore built without acoustic stimuli. Behaviour of reintroduced beavers suggest threat as their main motivation for any building activity.

5

Additional molar in European red deer

75%

Zurowski W.

Acta Theriologica

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1970

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tom 15

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nr 24-31

6

Anomalies in the wear of incisors in the European beaver

63%

Zurowski W., Krzywinski A.

Acta Theriologica

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1974

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tom 19

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nr 14-25

7

Changes observed in the reproductive tract of a beaver female after high dosages of gonadotropic hormones

63%

Doboszynska T., Zurowski W.

Acta Theriologica

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1975

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tom 20

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nr 1-14

8

Ochrona bobra w rejonie Kanału Mazurskiego

63%

Zurowski W., Siuda A.

Parki Narodowe i Rezerwaty Przyrody

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1985

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tom 06

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nr 2

9

Effects of reintroduction of European beaver in the lowlands of the Vistula basin

63%

Zurowski W., Kasperczyk B.

Acta Theriologica

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1988

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tom 33

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nr 12-25

10

Observations on the releasing of the European beaver

63%

Zurowski W., Jaczewski Z.

Acta Theriologica

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1974

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tom 19

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nr 14-25

11

Superfoetation in European beaver

63%

Zurowski W., Doboszynska T.

Acta Theriologica

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1975

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tom 20

|

nr 1-14

12

Spring diet of the American mink Mustela vison in the Mazurian and Brodnica Lakelands, northern Poland

63%

Brzezinski M., Zurowski W.

Acta Theriologica

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1992

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tom 37

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nr 1-2

The analysis of 110 American mink Mustela vison Schreber, 1777 faeces, collected in May and June during 1987 - 90, from beaver lodges in the Mazurian and Brodnica Lakelands (northern Poland), showed great diversity in the food eaten. Mammals dominated in the diet (61.8% of occurrence). Among them, Arvicola terrestris and Microtus sp. (mainly M. oeconomus) were most numerous. No beaver kit remains were recorded. Birds, amphibians, fish and crayfish were also important components of the mink diet. Each of these groups were found in about 25% of scats. The mink was found to be a typical generalistic predator. The diversity of the mink diet, most probably, was made possible by the abundant and diverse food resources in late spring.

13

Composition of milk of European beavers, Castor fiber Linnaeus, 1758

51%

Zurowski W., Kisza J., Kruk A.

Acta Theriologica

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1971

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tom 16

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nr 19-25

14

The food of the roe deer

51%

Siuda A., Zurowski W., Siuda H.

Acta Theriologica

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1969

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tom 14

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nr 11-19

15

Piżmak, Ondatra zibethicus Linnaeus, 1766 i norka amerykańska, Mustela vison Schreber, 1777 w rezerwacie "Jezioro Drużno"

51%

Balerstet J., Balerstet T., Wargacki K., Zurowski W.

Przegląd Zoologiczny

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1990

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tom 34

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nr 2-3

16

Marking beavers

50%

Zurowski W.

Acta Theriologica

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1970

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tom 15

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nr 24-31

Ograniczanie wyników

Czynniki motywujące podjęcie użytkowej hodowli bobrów europejskich zwierząt w Polsce

Bóbr europejski w dolinie Biebrzy

Zastosowanie trankwiliny przy kojarzeniu par i łączeniu w grupy bobrów bobrow eu opejskich (Castor fiber L.)

Building activity of beavers

Additional molar in European red deer

Anomalies in the wear of incisors in the European beaver

Changes observed in the reproductive tract of a beaver female after high dosages of gonadotropic hormones

Ochrona bobra w rejonie Kanału Mazurskiego

Effects of reintroduction of European beaver in the lowlands of the Vistula basin

Observations on the releasing of the European beaver

Superfoetation in European beaver

Spring diet of the American mink Mustela vison in the Mazurian and Brodnica Lakelands, northern Poland

Composition of milk of European beavers, Castor fiber Linnaeus, 1758

The food of the roe deer

Piżmak, Ondatra zibethicus Linnaeus, 1766 i norka amerykańska, Mustela vison Schreber, 1777 w rezerwacie "Jezioro Drużno"

Marking beavers