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1

Molecular characterisation of the Mycobacterium bovis causing bovine tuberculosis outbreaks in Poland

100%
Krajewska-Wedzina M., Kozinska M., Radulski L., Lipiec M., Augustynowicz-Kopec E., Weiner M., Szulowski K.
Journal of Veterinary Research
|
2020
|
tom 64
|
nr 1
2

Natural or deliberate outbreak in Pakistan: how to prevent or detect and trace its origin: biosecurity, surveillance, forensics

100%
Shinwari Z. K., Khalil A. T., Nasim A.
Archivum Immunologiae et Therapiae Experimentalis
|
2014
|
tom 62
|
nr 4
3

Landscape-level spruce mortality patterns and topographic forecasters of bark beetle outbreaks in managed and unmanaged forests of the Tatra Mountains

84%
Sproull G. J., Bukowski M., McNutt N., Zwijacz-Kozica T., Szwagrzyk J.
Polish Journal of Ecology
|
2017
|
tom 65
|
nr 1
Bark beetle outbreaks and tree mortality patterns should be better understood to control outbreak impacts. We investigated landscape-level patterns of Norway spruce mortality caused by Ips typographus outbreaks across three periods from 1999–2012 in Tatra National Park (Poland) using high-resolution aerial orthophotos and satellite imagery. Shifts in tree mortality related to elevation, slope, and solar equinox radiation were analyzed with ANOVAs (Tukey's HSD tests). Boosted regression trees were employed to assess the forecasting effectiveness of these variables related to mortality period. Spruce mortality severity increased significantly across time in both managed and unmanaged forests. Management activities did not effectively reduce spruce mortality severity. Mortality severity increased significantly at higher elevations over time, while slope and radiation trends varied. Elevation and radiation were the best forecasters of mortality period, exhibiting moderate predictive ability. Beetle-induced spruce mortality increased significantly in Tatra National Park from 1999–2012, particularly at high elevations. Management strategies aimed at minimizing spruce mortality have been ineffective.
4

Malignant catarrhal fever in cattle in the Irkutsk Region

84%
Zakharova O., Toropova N., Burova O., Titov I., Meltsov I., Blokhim A.
Journal of Veterinary Research
|
2020
|
tom 64
|
nr 2
5
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Content available

Variability of selected traits of Ips typographus (L.) (Col.: Scolytinae) populations in Beskid Zywiecki (Western Carpathians, Poland) region affected by bark beetle outbreak

67%
Grodzki W., Starzyk J. R., Kosibowicz M.
Folia Forestalia Polonica. Series A . Forestry
|
2014
|
tom 56
|
nr 2
In 2010–2012, investigations on Ips typographus populations were carried out in Norway spruce stands recently affected by bark beetle outbreak in the Beskid Żywiecki Mts. in Poland. The aim of the study was to test the usefulness of several traits describing I. typographus populations for evaluation of their actual outbreak tendency. Infestation density, sex ratio, gallery length, progeny number and beetle length were used as the traits. Trait variability was analyzed in relation to infested tree mortality in the current year of observation and outbreak tendency defined by the comparison of data on tree mortality in the current year and that in the year before. The highest infestation density was found in the stands representing the highest tree mortality in the current year and in those characterized by decreasing outbreak tendency. The gallery system with 2 maternal galleries dominated. The sex ratio of attacking beetles inclined towards females (63.8%) and remained stable during 3 years of observations; the highest percentage of females was found in locations being in stabilization/latency outbreak phase. The length of maternal galleries was somewhat negatively affected by infestation density and positively correlated with the number of progeny in the gallery. The average beetle length was 4.800 mm (± 0.293), ranging between 3.718 and 5.817 mm and being the highest in the uppermost class of tree mortality recorded in the current year of observation. The shortest beetles were collected in the stands with increasing outbreak tendency, and slightly longer – in the stands with outbreak stable and decreasing tendencies. None of the traits tested can be selected as a direct indicator for prediction of outbreak tendency in I. typographus populations. Possible reasons of variability in the analyzed traits are discussed. The traits indicate that I. typographus in the study area represent very high reproductive potential, thus the risk of repeated outbreak is very high.
6

Outbreaks and natural viral epizootics of the satin moth Leucoma salicis L. [Lepidoptera: Lymantriidae]

67%
Ziemnicka J.
Journal of Plant Protection Research
|
2008
|
tom 48
|
nr 1
23-39
Long standing systematic observations on Leucoma salicis populations revealed numerous occurrences of outbreaks and natural viral epizootics. Number of insects appearing in outbreaks at peak density ranged from 450 to 3250 on 10 examined poplar trees (up to 2 m height). Abundance of virus within population of such a high density increased along with an increase of insect population. Populations with high density and high level of nucleopolyhedrovirus (LesaMNPV) and cypovirus did not last long and collapsed suddenly. Outbreaks of the satin moth were favored by warm and humid conditions while warm and dry spring, summer months were conducive to viral epizootic. Most outbreaks happened in the years with mean temperatures of spring and summer months above 15°C and 50-60% RH while, most epizootics were recorded at similar temperature conditions but lower RH, i.e. 40-50%.
7

Proxenus lepigone (MOSCHLER, 1860) (Lepidoptera, Noctuidae), nowy przedstawiciel sówkowatych na Śląsku

67%
Larysz A.
Acta Entomologica Silesiana
|
2006-2007
|
tom 14-15
8

Tree ring chronologies of scots pine (Pinus sylvestris L.), black pine (P. nigra Arnold), and black alder (Alnus glutinosa (L.) Gaertn.) from the Slowinski National Park and neighbouring forests

67%
Kochanowski D., Bednarz B.
Acta Scientiarum Polonorum. Silvarum Colendarum Ratio et Industria Lignaria
|
2007
|
tom 06
|
nr 4
Tree ring chronologies of Scots pine (Pinus sylvestris L.) and black pine (P. nigra Arnold) from the dry coniferous forest and the fresh mixed coniferous forest, as well as black alder (Alnus glutinosa (L.) Gaertn.) from the alder swamp forest, in the Słowiński National Park and neighbouring forests (Damnica Forest District) are presented. For both pine species 1940, 1956, 1976, and 1996 were the negative signature years, while 1946, 1957, and 1989 were the positive ones. In black alder the diameter increment depressions occurred in 1997 and 1998. The tree ring width in both pine species was positively correlated with the mean monthly air temperatures in February and March, while there was no univocal precipitation-tree growth relationship found. In some cases, in black pine from the fresh mixed coniferous forest and black alder from the alder swamp forest, the statistically significant coefficients describing the precipitation-increment relationship had negative values. The increment depressions, which occurred in both pine species during 1981- -1983, were the result of the nun moth (Lymantria monacha L.) outbreak. Black alder was not attacked by this phyllophagous insect. The positive July precipitation-tree growth relationship was found in both pine species during the nun moth outbreak.
9

Pierwsze stwierdzenie Peribatodes rhomboidaria (DENIS et SCHIFFERMÜLLER, 1775) (Lepidoptera: Geometridae) na Górnym Śląsku

67%
Larysz A.
Acta Entomologica Silesiana
|
2006-2007
|
tom 14-15
10

Radial growth response of Scots pine [Pinus sylvestris L.], black pine [Pinus nigra Arnold], and black alder [Alnus glutinosa [L.] Gaertn.] to the nun moth [Lymantria monacha L.] outbreak in the Slowinski National Park and the Damnica Forest District [Northern Poland]

67%
Bednarz B., Kochanowski D.
Electronic Journal of Polish Agricultural Universities. Series: Forestry
|
2010
|
tom 13
|
nr 2
11
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Short-term variation in zooplankton community from Daya Bay with outbreaks of Penilia avirostris

67%
Li K., Yin J., Tan Y., Huang L., Song X.
Oceanologia
|
2014
|
tom 56
|
nr 3
12
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Restriction enzyme analysis of EHV1 strains responsible for abortion outbreak in mares

67%
Rola J.
Bulletin of the Veterinary Institute in Puławy
|
1997
|
tom 41
|
nr 2
In the present study field strains of equine herpesvirus 1 (EHV 1) were compared by restriction enzyme analysis. The strains were isolated from aborted fetuses in a horse stud during an abortion outbreak in 1993/1994. We found that all isolates had the same electrophoretic patterns of EHV 1 type, very similar to the pattern of the reference Ab-4 strain of EHV 1. We confirmed also the usefulness of DNA fingerprinting method for differentiation of EHV 1 and EHV4 viruses.
13

Regional differences in dynamics of bank vole populations in Europe

67%
Hansson L., Jedrzejewska B., Jedrzejewski W.
Polish Journal of Ecology
|
2000
|
tom 48
|
nr Suppl.
14

Delayed density-dependent and rainfall effects on reproductive parameters of an irruptive rodent in semiarid Chile

67%
Lima M., Jaksic F. M.
Acta Theriologica
|
1998
|
tom 43
|
nr 3
We examined the influence of density-dependent and density-independent factors on reproductive processes of leaf-eared mouse Phyllotis darwini (Waterhouse, 1837) in a semiarid region of Chile subjected to El Nino-driven precipitation. This species undergoes periodic irruptions apparently triggered by unusually high precipitation. The effects of density and precipitation were analyzed statistically regarding the following reproductive parameters: fraction of reproductive females, reproductive number (juveniles + reproductive females), per capita reproductive rates, and repro­duction index based on long-term data (10 years). The fraction of reproductive females was affected positively by precipitation during the preceding winter and negatively by population density one year before. The reproduction index and the reproductive rate was positively affected by population density the previous year. In addition, the reproductive number was positively correlated with precipitation levels. The P. darwini population studied was affected by delayed density-dependent and density-independent factors in reproductive parameters. We propose that both destabilizing effects on reproductive rates of P. darwini may be major factors underlying the frequent out­breaks of this mouse observed in semiarid regions of Chile.
15

Nowe stanowiska siedmiu rzadko spotykanych motyli większych (Macrolepidoptera) w Polsce

51%
Kokot A.
Acta Entomologica Silesiana
|
2001-2002
|
tom 09-10
16

Biesiada przy ognisku

30%
Syga P.
Kwietnik
|
2006
|
nr 09
50-51
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