Between the end of February 2007 and mid-February in 2008, 73 systematic surveys of waterbirds and raptors were carried out during 10-day periods at Cerknica polje (Southern Slovenia). The main ...objectives of our research were: to ascertain the abundance and temporal dynamics of the species occurring here, to specify their status, to make a comparison with the past period of systematic data gathering in the 1991-1992 period, to present estimates of the breeding, migrating and wintering populations, as well as to make, on these bases, a nature-conservancy evaluation of the area. Other ornithological data, acquired till the end of 2010, were gathered as well. Between the beginning of May and the beginning of September 2007, the water in the area virtually ran dry (it was retained only in the channels of the streams), while the surface itself was partially or fully icebound from mid-November 2007 till the beginning of February 2008. By the end of 2010, a total of 129 waterbird and raptor species were recorded at Cerknica polje, while in the 2007-2008 period 83 were registered. Dynamics of the species occurrence with more than nine observations made in the area is presented in a greater detail in the species overview. The breeding status was held by 27 bird species, while further seven were forage guests that bred in the vicinity of the study area. Most of the species (118) had the status of passage visitor, whereas those with the status of summer visitor (34) and winter visitor (40) were fewer. Among the recorded species, 34 were accidental and 21 rare visitors. There were 16 winter and seven summer residents, while year-round residents were six. In all 10-day periods of the research period, four species were recorded: Mallard Anas plathyrhynchos, Grey Heron Ardea cinerea, Buzzard Buteo buteo and Kestrel Falco tinnunculus. In more than 90% of 10-day periods, the Great Egret Ardea alba was recorded as well. In the 2007-2008 period, two species were eudominant (Mallard 27.2%, Buzzard 10.1%), whereas another two were dominant (Garganey Anas querquedula 7.4%, Coot Fulica atra 6.4%). Most individuals were registered at the end of March and in early April (up to 1,978 ind.), whereas the greatest numbers of species (48) were recorded in mid-April. Between May and August, the numbers of individuals and species were low owing to the dried up lake. The smallest area of occurrence was occupied by the Cormorant Phalacrocorax carbo and a group of ducks of the genera Aythya, Bucephala and Mergellus. Gulls, egrets, herons, waders, harriers Circus sp. and the Red-footed Kestrel Falco vespertinus occurred in the greater part of the research area. 10 breeders fulfilled the criteria of the species of the greatest conservation importance, two of which (Ferruginous Duck Aythya nyroca and Curlew Numenius arquata) are species of global conservation concern, whereas seven are of conservation concern on a European scale. Among non-breeders, 14 waterbird species and raptors occurred in significant numbers (> 0.1% biogeographical population), five of which occurred at least occasionally with more than 1% of their biographical population. Two species (Red-necked Grebe Podiceps grisegena and Snipe Gallinago gallinago) breed in Slovenia only at Cerknica polje, while further six species have here at least 40% of their Slovenian breeding population
U radu će se analizirati tekst Cvijeta kreposti ili Cvijeta svake mudrosti u Tkonskom zborniku iz 16. stoljeća, hrvatskoglagoljskoj zbirci raznolikih tekstova među kojima posebno mjesto pripada ...prijevodu popularnoga talijanskoga djela Fiore di virtù. Pojavnost ovoga djela u zapadnoeuropskoj književnosti zauzima posebno mjesto s obzirom na promišljanja o ljudskim manama i vrlinama koje su oduvijek zanimala čovjeka u kontekstu njihova razumijevanja i opisivanja. Osobita će se pozornost usmjeriti na odnos čovjeka prema životinji i njezino mjesto u razumijevanju samoga sebe, s posebnim osvrtom na zavist kao ljudsku manu i njezinu usporedbu s lunjom.
Ptice gnjezdarice Paluda, Istra Taylor, Louie Thomas; Hadžalić, Sanjin; Horvat, Katarina ...
Larus - Godišnjak Zavoda za ornitologiju Hrvatske akademije znanosti i umjetnosti,
03/2021, Letnik:
55, Številka:
1
Paper
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Tijekom proljeća 2020. godine provedeno je istraživanje ornitofaune u ornitološkom rezervatu Palud. Zabilježeno je 35 gnijezdećih vrsta ptica. Najbrojnije vrste su crnokapa grmuša Sylvia atricapilla, ...slavuj Luscinia megarhynchos, kos Turdus merula i bjelobrka grmuša Sylvia cantillans. Osjetljiva gnjezdarica Hrvatske, vlastelica Himantopus himantopus i malobrojna gnjezdarica Hrvatske, utva Tadorna tadorna zabilježene su kao gnijezdeće vrste. Potvrđeno je i gniježđenje kopca Accipiter nisus, vijoglava Jynx torquilla i goluba grivnjaša Columba palumbus koji do sada nisu bili zabilježeni na ovom području.
Cilj je istraživanja bio prilagoditi metodu protočne citometrije, koja se inače primjenjuje u analizi neutrofila, za analizu funkcija ptičjih heterofila. Uzorci krvi 10 kokoši dobiveni su iz ...klaonica. Uzevši u obzir količinu krvi, kao i trajanje pohrane krvnih uzoraka odnosno vrijeme inkubacije, analizirana su stanična suspenzija, dihidrorodamin-123 (DHR-123), forbol-12-miristat-13-acetat (PMA) i N-formil-metionil-leucil-fenilalanin (fMLP). Rezultati su pokazali da se 0,5 – 3 mL krvi može upotrijebiti za otkrivanje funkcija heterofila te da bi idealno bilo analizirati svježe uzorke krvi. Osim toga rezultati su pokazali da se i krv pohranjena na temperaturi od +4 °C, u vremenu do 8 sati, može upotrijebiti ako je to potrebno. Kako bi se stanice izolirale, dovoljno je centrifugirati 30 minuta uz primjenu stanične suspenzije od 30 μL. Kao kemijsku probu za mjerenje funkcija heterofila trebalo bi upotrijebiti 2 μL DHR-123. Prekomjerna upotreba DHR-123 negativno je utjecala na funkcije heterofila. Također, uočeno je da je bila dovoljna primjena 2 μL fMLP-a, koji služi kao stimulans oksidacijskog izgaranja, kao i primjena 2 μL PMA-a kao stimulansa kemotaktičke aktivnosti. Zaključeno je da je inkubacija na temperaturi od 41 °C, tijekom 5 minuta poslije stimulacije heterofila također dovoljna. Rezultati su pokazali da se metode ustanovljene u ovom radu mogu primijeniti za izolaciju heterofila i njihovu analizu protočnom citometrijom, čime se doprinosi daljnjim istraživanjima i kliničkim studijama u peradi.
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Pojavljanje vodnih ptic in ujed na območju vodnega zadrževalnika Medvedce (Dravsko polje, SV Slovenija) v obdobju 2002-2008
Between 2002 and 2008, 251 systematic surveys of waterbirds and raptors ...were carried out during 10-day periods. The main objective of the research was to ascertain the numbers and temporal dynamics of the birds occurring at the reservoir and to define their status. During the research period, more than half of the reservoir was constantly under water between March and October owing to the fishfarming purposes, with fields prevailing in its vicinity. By taking into consideration some older data, 115 species of waterbirds and raptors were registered in the area by the end of 2008, 108 of them during the 2002-2008 period. The status of each species is given quantitatively with different categories of their abundance and occurrence frequency, while data for species occurrence dynamics with more than 10 are presented in the species overview. Confirmed and probable breeding was ascertained for 33 species, while another two were confirmed to breed in the vicinity of the research area. Most of the species (100) have passage migrant status; 13 of these were recorded only once in the 2002-2008 period. Five species were present all the year round. The highest number of species was recorded during the two migration periods, in the spring between end of March and the first half of April, in the autumn between the second half of August and early September (mean value of 32-40 species). The lowest number of species, usually around 10, was registered in the winter period, when the reservoir was for the most part empty or frozen over. The total number of individuals was again highest during the migration period, although significantly higher in autumn than in spring. The highest number of birds was usually recorded between the end of August and mid-September (median between 4,500 and 5,000 individuals). During the 2002-2008 period, it was only the Grey Heron Ardea cinera that frequented the reservoir during all our visits, while in more than 90% of our visits the Great Egret Casmerodius albus and the Mallard Anas platyrhynchos were registered. 32 species were observed less than ten times. The three most abundant species, i.e. the Coot Fulica atra, the Mallard and the Black-headed Gull Larus ridibundus, constituted 76.1% of all counted birds. Dominance was higher than 0.1% in 26 species. The Mallard and the Coot were in most of the years eudominant species in the warmer half of the year.
Rudarske i industrijske aktivnosti povezane s raškim ugljenom rezultirale su ispuštanjem raznih onečišćujućih tvari u lokalni okoliš. Te tvari i dalje su prisutne u lokalnome tlu, vodi i biljkama te ...su dostupne životinjama unosom hrane. U ovome istraživanju uzorci tkiva ukupno 12 ptica iz područja Raše te 8 ptica iz kontrolnoga područja podvrgnuti su multielementnoj (Al, V, Cr, Mn, Fe, Co, Cu, Zn, As, Se, Mo, Cd, Pb) analizi s pomoću metode ICP-MS. Dobiveni rezultati pokazali su povišene koncentracije Se i Cd u nekim uzorcima tkiva ptica u usporedbi s kontrolnim područjem. Najveće koncentracije Cu, Zn i Se nađene su u uzorcima jetre, dok su najviše koncentracije Cd i Pb nađene u bubrezima. Iako su neki opasni elementi u tragovima povišeni u tkivima prikupljenih divljih ptica, analizom podataka utvrđeno je da je rizik od prehrambena unosa (meso i iznutrice) tih vrsta vrlo nizak.
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Provider: - Institution: - Data provided by Europeana Collections- Extended description:
Izjavi Boruta Mozetiča, iz društva za opazovanje ptic in Zofije Pavlin z Bertokov.
Borut Mozetič from the ...Society for Bird Watching and Zofija Pavlin from Bertoki gave their statements regarding massive number of bird deaths.- Information:- Severe pollution of the Škocjanski zatok, a nature reserve located in the vicinity of Koper, with dead birds.- Original language summary:
Onesnaženje Škocjanskega zatoka, naravnega rezervata, ki se nahaja v neposredni bližini Kopra, in množični pogin ptic.- 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
Rudarenjem i spaljivanjem ugljena u okoliš se ispuštaju onečišćivala koja se tamo zadrže desetljećima. Rad donosi podatke o koncentraciji Se i teških metala (As, Cd, Cu, Cr, Hg, Pb, Sr, U, V i Zn) u ...salati, krumpiru i tkivima (jetra, bubreg, srce i mišići) ptica stanarica (golub, šojka, i crna liska) iz područja Raškoga zaljeva (sjeverni Jadran, Hrvatska). Njihova izloženost povišenim razinama Se i teških metala u povrtnome tlu, površinskoj vodi i riječnome sedimentu onečišćenima visokosumpornim raškim ugljenom, obogaćenom sa S, Se, V i U, vrlo je vjerojatna. Rezultati upućuju na zagađenost vode selenom (do 78 μg/L ukupni Se u nefiltriranome uzorku), što je znatno iznad hrvatskoga regulacijskog praga od 10 μg/L ukupnoga Se. Dotična voda potječe s mjesta bivše jedinice za sortiranje i pranje ugljena, a pridneni sediment sadržava do 10,8 mg/kg ukupnoga Se, što je također iznad sigurne razine od 0,60 mg/kg ukupnoga Se. Štoviše, u većini uzoraka vode, kao i u analiziranim uzorcima povrća, tla i riječnoga sedimenta, povišene su vrijednosti Mo, U, V i Sr, uobičajeno povišenih u takvim ugljenima. Iako su Cu, Zn, Pb i V blago povišeni u uzorcima jetre ptica, ponajprije u crnoj liski u odnosu na ostale dvije ptice, pronađeno je da su vrijednosti Se odgovarajuće za njihov normalan rast. Činjenica da Se može biti opasan za okoliš i otrovan za život, čak i u malim količinama, dodatno potiče na daljnja znanstvena istraživanja ovoga problema.
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