In March 2009, active Magpie Pica pica nests were censused in the town of Sombor (Vojvodina, NW Serbia) to study nest-site characteristics, breeding density and spatial distribution. The area of the ...town can be divided into two parts according to different urban landscapes, i.e. the town centre (150 ha) and the residential area (2,224 ha). In total, 222 Magpie nests were found and their height, tree species and nest-site type determined. Nests were found in 25 tree and two shrub species, the most of them (31.1%) being placed in the commonest tree species in the town, the Common Hackberry Celtis occidentalis. The majority of the nests were found in tree avenues (39.6%) and groups of trees (31.5%). Nests in the town centre with a mean height (± SD) of 15.2 ± 4.05 m were significantly higher than those in the residential area with a mean height (± SD) of 11.4 ± 5.13 m. The mean distance of nests from the top of the canopy (± SD) was 1.5 ± 1.33 m, demonstrating the Magpie's tendency to place its nests in the very tops of trees in the urban areas. In the residential area, nests were present in every height class, while in the town centre they were not found lower than 5 m. This difference can be explained by denser human population in the town centre and hence greater disturbance (e.g. pedestrians), as found in several other studies, but also by the negative effect of high buildings that prevail there. Thus, the height of surrounding buildings, too, might play an important role in nest-site selection in Magpies breeding in urban habitats, especially in densely built-up areas. Breeding density of Magpie in Sombor was 0.94 pairs/10 ha, with almost twice as high in the town centre as in the residential area. The findings of this study are compared to those obtained in other studies in Serbia and abroad.
Značilnosti gnezdišč in gnezditvena gostota srake Pica pica v Somboru (SZ Srbija)
Namen raziskave je bil izvrednotiti genetske korelacije med velikostjo gnezda pri mladicah in pri starih svinjah. Analizirali smo število rojenih in število živorojenih pujskov od prve do šeste ...zaporedne prasitve. Skupno je bilo vključenih 24 334 prasitev pri pasmah švedska landrace (SL) in large white (LW), liniji 12 (SL × LW) in liniji 21 (LW × SL). Z modelom živali smo ocenili visoke genetske korelacije med velikostjo gnezda pri mladicah in starih svinjah tako za število rojenih (0,92) kot za število živorojenih pujskov v gnezdu (0,92), kar nam je služilo za obravnavo velikosti gnezda pri različnih zaporednih prasitvah kot ene lastnosti. Oceni heritabilitet za velikost gnezda pri mladicah ter pri starih svinjah sta višji za število rojenih (0,14) kot za število živorojenih pujskov (0,12). Dobljeni rezultati nakazujejo primernost ponovljivostnega modela za selekcijo velikosti gnezda v proučevani populaciji.
V raziskavo je bilo vključenih 46 960 prasitev pri svinjah pasme švedska landrace (SL) in large white (LW) ter F1 križankah teh pasem, liniji 12 (SL x LW) in liniji 21 (LW x SL). S ponovljivostnim ...modelom živali smo analizirali število rojenih in število živorojenih pujskov od prve do šeste zaporedne prasitve. Razliko med posameznimi genotipi smo obravnavali v obliki parametrov križanj. Proučevali smo maternalne komponente: aditivni maternalni vpliv, maternalni heterozis in aditivni vpliv stare matere, ki so bile obravnavane kot neodvisne spremenljivke. Prispevek aditivnega maternalnega vpliva k razliki med pasmama (SL-LW) je bil večji za število živorojenih (0,36) kot za število rojenih pujskov (0,09). Oceni maternalnega heterozisa, ki pojasnjujeta odstopanje linij od povprečja pasem, sta za število rojenih pujskov 0,69 in 0,72 za število živorojenih pujskov v gnezdu. Razlika med linijama (SL x LW-LW x SL) je zanemarljiva (0,06 za rojene in –0,03 za živorojene pujske).
Rumors were circulating that the writer had drafted a hit list that was to be carried out this week. Police and school officials said the writings were prosaic and "nothing that we have has any kind ...of date," Vicki Gnezda said. "Unfortunately, there are some at (the high school) who are spreading rumors and speculation which is leading to more drama," Ed Dunaway wrote. "Of course, we investigate any threat to the safety of our students and staff to the fullest extent." "At this point, this particular situation has been taken care of," Gnezda said.
Provider: - Institution: Državni arhiv u Zagrebu - Data provided by Europeana Collections- Antun Gnezda- All metadata published by Europeana are available free of restriction under the Creative ...Commons CC0 1.0 Universal Public Domain Dedication. However, Europeana requests that you actively acknowledge and give attribution to all metadata sources including Europeana
Three levies in five years might be too much for the community, said Mike Alfred, who, along with John Herrington, recently launched Educate Worthington (www.educateworthington.org) to make the ...district's financial information more public. Last school year, Worthington teachers ranked seventh in starting pay and fourth in 30 th-year pay among the 16 districts based in Franklin County; Worthington was sixth in per-pupil spending, according to a Dispatch analysis at the time. Property-tax revenue generally remains steady as schooldistrict expenses rise. School districts have a surplus in the early years of a tax increase that they carry over to cover expenses in succeeding years. Worthington will have used up its current surplus by 2008.
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