Wyniki wyszukiwania

1

Predominating tree species at selected parks of central Poland

100%

Wojtatowicz J.

Annals of Warsaw Agricultural University. Horticulture

|

2000

|

tom 21

2

Predominating tree species at selected parks in voivodeships of South of Poland

100%

Wojtatowicz J.

Annals of Warsaw Agricultural University. Horticulture

|

1999

|

tom 20

3

Natural trunk rooting and root suckers of pear tree Pyrus x amphigenea Domin ex Dostalek

86%

Czekalski M., Antkowiak W.

Acta Scientiarum Polonorum. Biologia

|

2009

|

tom 09

|

nr 1-4

4

The role of climatic variables for estimating probability of abundance of tree species

86%

Antunez P., Wehenkel C., Lopez-Sanchez C. A., Hernandez-Diaz J. C.

Polish Journal of Ecology

|

2017

|

tom 65

|

nr 3

We analyzed the influence of climatic variables on the abundance of native tree species in 1,490 sampling plots systematically distributed in the Sierra Madre Occidental (state of Durango, Northwestern Mexico, 26°50′ and 22°17′N and 107°09′ and 102°30′W). We used the Weibull distribution and the finite Gaussian mixture model to study the climatic limits of 15 tree species in relation to seven variables thought to affect species abundance. We found that although they may occur in the same geographical region, some species display a wider range of ecological tolerance than others. Of the 15 species under study, only two (Quercus magnoliifolia and Q. arizonica) can be considered generalists in relation to some climatic variables, while the other 13 species behaved as specialists, implying a narrower range of distribution. The analytical techniques used enabled us to demarcate the zones in which the probability of abundance of each species is highest in relation to the climate variables considered. The findings could be used to help define climate for the 15 studied tree species of economic and ecological interest.

5

Predominating tree species at selected parks in central and Middle-East of Poland

86%

Wojtatowicz J.

Annals of Warsaw Agricultural University. Horticulture

|

2001

|

tom 22

6

Reactions of large pine weevil [Hylobius abietis [L.]] to the smell of preparations made of selected tree species

86%

Korczynski I., Kuswik M.

Forestry

|

2001

|

tom 04

7

Tree species in Warsaw residential districts - current condition and recommended changes

86%

Wolski P., Piwowarski M.

Annals of Warsaw Agricultural University. Horticulture

|

1999

|

tom 20

8

Genetic resources of main forest tree species from Romanian Carpathians

86%

Farcas C.

Zeszyty Naukowe Akademii Rolniczej w Krakowie. Sesja Naukowa

|

2007

|

tom 92

9

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Application of DNA markers against illegal logging as a new tool for the Forest Guard Service

72%

Nowakowska J. A.

Folia Forestalia Polonica. Series A . Forestry

|

2011

|

tom 53

|

nr 2

DNA markers are currently the most precise tool for forest tree species identification and can be used for comparative analyses of plant material. Molecular diagnosis of evidence and reference material is based on comparing the structure of DNA markers duplicated in the PCR reaction and estimation of the DNA profiles obtained in studied wood samples. For this purpose, the microsatellite DNA markers are the most suitable tool because of their high polymorphism and accurate detection of structural changes in the genome. The analysis of tree stump DNA profiles let avoid timely collection of data such as tree age, diameter, height and thickness, although such a piece of information may advantageous in wood identification process. For each examined tree species, i.e. Pinus sylvestris L., Picea abies (L.) Karst., Quercus robur L. and Q. petraea (Matt.) Liebl., Fagus sylvatica L., Betula pendula L., and Alnus glutinosa L., wood identification was possible via the DNA profiles established on a basis of minimum 4 microsatellite nuclear DNA loci, and at least one cytoplasmatic (mitochondrial or chloroplast) DNA marker. Determination of the DNA profiles provided fast and reliable comparison of genetic similarity between material of evidence (wood, needles, leaves, seeds) and material of reference (tree stumps) in the forest. This was done with high probability (approximately 98– 99%).

10

Analysis of tree species, preferences by farmers in Albertine rift, Uganda

72%

Tumuhe C. L., Nyamaizi S.

Environment, Earth and Ecology

|

2020

|

tom 4

|

nr 1

11

The impact of overstory species and soil properties on the growth of planted silver fir Abies alba in the Karkonosze Mountains, Poland

72%

Dobrowolska D., Pawlak B., Olszowska G.

Polish Journal of Ecology

|

2021

|

tom 69

|

nr 1

12

Selective foraging on tree and shrub species by the European beaver Castor fiber in lowland and highland habitats in Western Poland

72%

Wazna A., Cichocki J., Bojarski J., Gabrys G.

Polish Journal of Ecology

|

2018

|

tom 66

|

nr 3

In this study, generic composition of food and foraging preferences of the European beaver were determined on sites where the beavers were reintroduced after more than 200 years of absence. Research area was located on lowland (Silesian Lowland) and highland habitats (Bystrzyckie Mountains, Wałbrzyskie Mountains) in western Poland. During the study period, 17,418 trees and shrubs growing within the feeding area of the beavers were marked, out of which 4,669 were found to be cut by beavers. The results showed that the foraging preferences of beavers depend on the availability and diversity of the local food sources. In the lowlands beavers preferred the following species of trees and shrubs as their primary food source: Salix cinerea, S. fragilis, S. caprea, Cornus sanguinea and Populus tremula. In the highlands, beavers preferred Corylus avellana, Sorbus aucuparia, and Fagus sylvatica due to the low availability of Salix and Populus species. Moreover, in the highlands, beavers had to cover longer distances to reach the feeding sites and had to cut trees with larger diameter than in the lowlands.

13

Valuable tree species in forest stands of the Czech Republic - black cherry

72%

Zeidler A.

Zeszyty Naukowe Akademii Rolniczej w Krakowie. Sesja Naukowa

|

2005

|

tom 91

471-478

14

Dendroflora of the Citadel Park in Poznan

72%

Wronska-Pilarek D., Malinski T.

Acta Scientiarum Polonorum. Silvarum Colendarum Ratio et Industria Lignaria

|

2008

|

tom 07

|

nr 2

59-70

15

Impact of alien tree species Quercus rubra L. on understorey habitat and flora: a study of the Silesian Upland (Southern Poland)

72%

Chmura D.

Polish Journal of Ecology

|

2013

|

tom 61

|

nr 3

One hundred and one stands of non-native red oak Quercus rubra L. were examined across various forest types with the objective to relate the influence of environmental variables on the abundance of this species and to characterise its impact on the species richness and proportion of functional groups of native plant species. Amongst randomly selected stands more than 50% were self-regenerating ones, i.e. seedlings were present. The cover of Q. rubra seedlings was positively correlated with light intensity (rs = 0.38, P <0.05) and negatively with the content of nitrogen (rs = –0.20, P <0.05) and loss on ignition (rs = 0.20, P <0.05) in soil. The cover of mature trees was positively correlated with the value of pH (rs = 0.22, P <0.05). Separate correlations with DCA scores of phytosociological relevés and the cover of red oak in each layer showed that the species influenced the floristic composition of forest vegetation. The cover of mature trees of red oak negatively affected both the number of understorey species (rs = –0.39, P <0.01) and the cover of shrubs (rs = –0.21, P <0.05) and herbaceous species (rs = –0.22, P <0.05). Q. rubra in the form of a mature tree had a negative influence on the cover of barochores, endozoochores and species of Grime’s CSR strategy. The cover of red oak’s seedlings was negatively correlated with the cover of annual species (rs = –0.21, P <0.05). Saplings of Q. rubra had a negative influence on the cover of dyszoochores (rs = –0.21, P <0.05) and was positively correlated with competitors (rs = 0.31, P <0.01), megaphanerophytes (rs = 0.27, P <0.05) and therophytes (rs = 0.25, P <0.05). The study showed that Q. rubra is a competitive species both as a mature tree and in the form of seedlings or small saplings and thus it can contribute to the reduction of biodiversity in forest communities.

16

„Verification concepts of the presence of main forest-forming tree species ranges in Poland" - scientific seminar in Forest Research Institute

72%

Sulkowska M.

Folia Forestalia Polonica. Series A . Forestry

|

2013

|

tom 55

|

nr 1

17

Flowering phenology of selected wind pollinated allergenic deciduous tree species

72%

Kluza-Wieloch M., Szewczak J.

Acta Agrobotanica

|

2006

|

tom 59

|

nr 1

Systematic phenological observations have been carried out in the Dendrological Garden of Agricultural University of Poznań, Park Solacki, Lasek Golęciński, Przybyszewskiego Street, for two years (2003, 2004). The selected species of deciduous trees, as Betula pendula, Corylus avellana, Platanus x hispanica. There was interdependence between the course of flowering process and weather conditions. Long and frosty winter at the turn of 2002/2003 and subzero mean temperatures in the first quarter of 2003 delayed vegetation. Rapid coming of early spring in the year 2004 accelerate the development of generative organs. Each year spring ground frost during flowering did not inhibit this process. All the investigated tree species are anemophilous and produce large amounts of allergenic pollen grain. They cause allergic reactions throughout the whole period of pollen discharge. Male inflorescences in Corylus avellana, blooming very early, are one of the first plants causing allergic reactions., Betula pendula is the next to bloom, followed by Platanus x hispanica. Observations of phenological phases may provide useful information forecasting the beginning of the period of increased pollen concentration in air.

18

The effect of crop rotation of six forest tree species on peat-bark substrate enzymatic activity

72%

Lukaszewicz J., Olszowska G.

Acta Physiologiae Plantarum

|

2003

|

tom 25

|

nr 4

19

Geographical pattern of haplotypic variation in Austrian native stands of Picea abies

58%

Mengl M., Geburek T., Schueler S.

Dendrobiology

|

2009

|

tom 61 Supplement

In the present study we analysed the mitochondrial intraspecific variation in natural populations of Norway spruce. We used the second intron of the nad1 gene, which contains two polymorphic short tandem repeats. Due to the maternal inheritance of mitochondrial DNA in Norway spruce, the spatial distribution of haplotype DNA allows insights into seed dispersal and artificial seed transfer. A total of 504 trees distributed all over Austria were genotyped, and 9 different haplotypes could be found. A geographical map of the haplotype variation pattern of Picea abies is presented.

20

Growth and nutrition of restored Quercus castaneifolia C.A. Mey. versus native Celtis australis L. tree species: conservation perspectives of Hyrcanian forest (Iran)

58%

Hosseini S. M., Raouhi-Moghaddam E., Ebrahimi E., Rahmani A., Tabari M.

Polish Journal of Ecology

|

2010

|

tom 58

|

nr 1

For native species, mixed plantation systems seem to be the most appropriate for providing a broader range of options such as production, protection, biodiversity conservation and restoration. After 11 years, growth and nutrition and soil properties were examined in young plantation of two indigenous tree species in Hyrcanian forests of Iran. Quercus castaneifolia C.A. Mey. (as target species) and Celtis australis L. (as native component species) were planted in five proportions (100Q, 70Q:30C, 60Q:40C, 50Q:50C, 40Q:60C) in Noor, Iran. Diameter at breast height of individual Quercus trees and total basal area were affected by the presence of Celtis. Percent retranslocation of nutrients in Quercus followed in order: K> P> N. Leaf-litter fall production ranged from 4.10 to 6.14 t ha⁻¹ year⁻¹. Ca and Mg concentrations in fully expanded leaves of Quercus, N and K retranslocation of Quercus, concentration of available P in soil were higher in some of the mixed plantations than in monoculture of Quercus. On the other hand, N concentration in fully expanded leaves of Quercus, N fluxes and soil C/N ratio were higher in monoculture of Quercus. Within the framework of this experiment, it appeared that production was maximized when these two species were grown together in the proportion of 60% Quercus and 40% Celtis.

Ograniczanie wyników

Predominating tree species at selected parks of central Poland

Predominating tree species at selected parks in voivodeships of South of Poland

Natural trunk rooting and root suckers of pear tree Pyrus x amphigenea Domin ex Dostalek

The role of climatic variables for estimating probability of abundance of tree species

Predominating tree species at selected parks in central and Middle-East of Poland

Reactions of large pine weevil [Hylobius abietis [L.]] to the smell of preparations made of selected tree species

Tree species in Warsaw residential districts - current condition and recommended changes

Genetic resources of main forest tree species from Romanian Carpathians

Application of DNA markers against illegal logging as a new tool for the Forest Guard Service

Analysis of tree species, preferences by farmers in Albertine rift, Uganda

The impact of overstory species and soil properties on the growth of planted silver fir Abies alba in the Karkonosze Mountains, Poland

Selective foraging on tree and shrub species by the European beaver Castor fiber in lowland and highland habitats in Western Poland

Valuable tree species in forest stands of the Czech Republic - black cherry

Dendroflora of the Citadel Park in Poznan

Impact of alien tree species Quercus rubra L. on understorey habitat and flora: a study of the Silesian Upland (Southern Poland)

„Verification concepts of the presence of main forest-forming tree species ranges in Poland" - scientific seminar in Forest Research Institute

Flowering phenology of selected wind pollinated allergenic deciduous tree species

The effect of crop rotation of six forest tree species on peat-bark substrate enzymatic activity