Wyniki wyszukiwania

1

Ekspansja i pierwsze przypadki gniazdowania dzieciola zielonosiwego Picus canus w Wielkopolsce

100%

Kempa M., Kosinski Z.

Notatki Ornitologiczne

|

2003

|

tom 44

|

nr 2

131-137

2

Rozmieszczenie i liczebnosc dzieciola zielonosiwego Picus canus na Wysoczyznie Elblaskiej i jego ekspansja na Warmii i Mazurach

84%

Sikora A.

Notatki Ornitologiczne

|

2006

|

tom 47

|

nr 1

32-42

3

Obserwacja mieszanca dzieciolow zielonosiwego Picus canus i zielonego P. viridis w Polsce

84%

Dmoch A.

Notatki Ornitologiczne

|

2003

|

tom 44

|

nr 4

273-275

4

Przypadek hybrydyzacji pomiędzy dzięciołem zielonym Picus viridis a dzięciołem zielonosiwym Picus canus

67%

Czechowski P., Bochenski M.

Przegląd Przyrodniczy

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2012

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tom 23

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nr 1

5

Leśni inżynierowie

67%

Kosinski Z.

Salamandra:Magazyn Przyrodniczy

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2010

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nr 2

6

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Wykorzystanie płatów drzewostanów liściastych przez stenotopowe gatunki dzięciołów w lasach z dominacją sosny w południowo-wschodniej Polsce

67%

Wojton A., Krason K.

Sylwan

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2017

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tom 161

|

nr 11

Woodpeckers are a very good indicators of forest naturalness. The fact that many species of these birds are in decline in central and western Europe resulted from changes in forest management (e.g. favouring coniferous forest, removal of dead trees). The aim of this research was to evaluate the importance of patches of deciduous species for the occurrence of some specialized woodpeckers in the conditions of Scots pine dominated stands. The study focused on species associated with deciduous forest, i.e. middle spotted woodpecker Leiopicus medius (L.), white−backed woodpecker Dendrocopos leucotos (Bechstein) and grey−headed woodpecker Picus canus (Gmelin). Statistical analyses were performed for the woodpeckers, which occurred in more than 10 territories. The studies were performed in 2015−2017 in the southern part of the Sandomierz Basin in three study areas (52,6−59 km²). Two plots were dominated by black alder Alnus glutinosa and oak Quercus sp., while the third one was characterized by the highest share of black alder, followed by silver birch Betula pendula and oak. Deciduous trees at the age over 80 years accounted for less than 2% of the total area of each plot. The most abundant bird species in patches of deciduous forest was the middle spotted woodpecker (25 territories), while the rarest was white−backed woodpecker (1 territory). Grey−headed woodpecker appeared in 12 territories. The density of woodpeckers in deciduous forest areas ranged from 0.45 territories/100 ha for grey−headed woodpecker to 1.54 territories/100 ha for the middle spotted woodpecker. In the alder patches we found all territories of grey−headed woodpecker, 24% territories of the middle spotted woodpecker and single territories of white−backed woodpecker. The patches dominated by oak accounted for about 76% of territories of middle spotted woodpecker. The average area of the patches with presence of middle spotted woodpecker and grey woodpecker was significantly higher than the patches where woodpeckers were absent. The middle spotted woodpecker occurred in the forest patches with the highest average age. Redundancy Analysis (RDA) demonstrated that the occurrence of middle spotted woodpecker was most strongly associated with the area of the patches over 10 ha, while the grey−headed woodpecker preferred mature forest stands of alder. These species abundance was negatively correlated with a patch area less than 10 ha.

7

Rozpoznawanie dzięciołów: zielonosiwego Picus canus i zielonego P. viridis

67%

Cofta T.

Ptaki Polski

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2013

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nr 1[29]

8

Dziecioly

59%

Zub K.

Parki Narodowe

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2004

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nr 3

19-21

9

Density, distribution and nest-sites of woodpeckers Picidae, in a managed forest of Western Poland

59%

Kosinski Z., Kempa M.

Polish Journal of Ecology

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2007

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tom 55

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nr 3

Abundance, distribution and nest-site characteristics of woodpecker species (family Picidae), i.e., Great Spotted Woodpecker (Dendrocopos major L.), Middle Spotted Woodpecker (D. medius L.), Lesser Spotted Woodpecker (D. minor L.), Black Woodpecker (Dryocopus martius L.), Grey-faced Woodpecker (Picus canus Gmel.) and Wryneck (Jynx torquilla L.), coexisting in managed forest are described. All species preferred old deciduous forest stands (≥81 years old) as nest-sites, however, they differed in most aspects of nest site selection. Great- and Middle Spotted Woodpeckers excavated nest-holes most commonly in oaks (78 and 86% of nests, respectively), but Black- and Grey-faced Woodpeckers in beeches (71 and 100% of nests). However, placement of nest-holes within the same tree species differed among woodpecker species. Great Spotted- and Grey-faced Woodpeckers nested three meters lower (9 m) compared to Middle Spotted and Black Woodpeckers (12 m). Lesser Spotted- Woodpeckers excavated breeding holes relatively the highest in respect to tree height. With the exception of Lesser Spotted Woodpeckers, all specie used live trees as nest sites. Weaker excavators such as Middle Spotted- and Lesser Spotted Woodpeckers, nested more frequently in limbs and branches (31 and 25% of nests, respectively) compared to strong excavators, i.e., Great Spotted-, Black- and Greyfaced Woodpeckers (<8% of nests in limbs or branches). Weaker excavators more frequently selected dead tree fragments compared to strong excavators.

10

Rare Woodpecker species in Latvia

59%

Bergmanis M., Strazds M.

The Ring

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1993

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tom 15

|

nr 1-2

11

Dzieciol zielonosiwy

42%

Keller M.

Las Polski

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2003

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nr 07

17

Ograniczanie wyników

Ekspansja i pierwsze przypadki gniazdowania dzieciola zielonosiwego Picus canus w Wielkopolsce

Rozmieszczenie i liczebnosc dzieciola zielonosiwego Picus canus na Wysoczyznie Elblaskiej i jego ekspansja na Warmii i Mazurach

Obserwacja mieszanca dzieciolow zielonosiwego Picus canus i zielonego P. viridis w Polsce

Przypadek hybrydyzacji pomiędzy dzięciołem zielonym Picus viridis a dzięciołem zielonosiwym Picus canus

Leśni inżynierowie

Wykorzystanie płatów drzewostanów liściastych przez stenotopowe gatunki dzięciołów w lasach z dominacją sosny w południowo-wschodniej Polsce

Rozpoznawanie dzięciołów: zielonosiwego Picus canus i zielonego P. viridis

Dziecioly

Density, distribution and nest-sites of woodpeckers Picidae, in a managed forest of Western Poland

Rare Woodpecker species in Latvia

Dzieciol zielonosiwy