In the last 150 years, 49 raptor species belonging to the families Pandionidae, Accipitridae, Falconidae, Tytonidae, Strigidae and Laniidae have been recorded in Bosnia and Herzegovina. However, ...little is known about their populations. In comparison with historical data, their status has changed significantly, while nine species became extinct or probably extinct as breeders. In this paper, data on the present status of raptor populations is presented, as well as problems and the possibilities of developing species monitoring in Bosnia and Herzegovina. So far, no raptor monitoring has been established in the form of a long-term programme. The establishment of such programme is hampered by a number of reasons (lack of observers, lack of financial resources, lack of experience and knowledge, etc.). Monitoring of raptors in Bosnia and Herzegovina is needed to improve knowledge of the local populations as well as to protect these birds and their habitats. Also, this programme would be significant for the studies concerning the construction of various facilities (e.g. wind turbines). One of the important points of the development programme is to mobilize international cooperation and projects to solve current problems
Inhalation of pollen belonging to the species of Ambrosia may cause hypersensitivity reactions. Feed for wild birds is one of the factors that contribute to the spread of these plants. For this ...reason an amendment to the Directive on undesirable substances in animal feed (2002/32/EC) was added, in 2010 stating that animal feed made of unground cereals can contain up to 50 mg of Ambrosia spp. seeds per kilogram (UL L 290/54). Due to the lack of data, 40 samples of feed for wild birds were examined with a microscopic method. Ambrosia spp. seeds were found in 20 samples (50%). The number of seeds was from 2 to 146 (10 mg to 774 mg). In accordance with the legislation, results were expressed relative to a feed with the moisture content of 12%. Five samples (12.5%) exceeded the permitted value.
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Between April 2007 and April 2008, 40 systematic waterbird counts were conducted on the Drava River between Lake Maribor and the Melje Dam (length 8.5 km, area 155 ha) to determine the specific ...composition, abundance and seasonal dynamics of bird occurrence. Between October and May, counts were conducted every week, whereas between June and September they were carried out once every two weeks. In total, 26,803 individuals of 30 species were counted. The number of waterbirds and diversity of species were the highest from late December to late February, when more than 1,000 individuals were regularly present in the area. Waterbirds were distributed along the river unequally, with the highest number of birds present yearround in the city centre and in the first counting sector of Lake Maribor. The Mallard Anas platyrhynchos and Mute Swan Cygnus olor were recorded during every count, while occurrence frequency was greater than 50% in another 10 species. Dominant species in terms of percentage composition were Mallard, Black-headed Gull Chroicocephalus ridibundus, Coot Fulica atra, Mute Swan, Pochard Aythya ferina and Tufted Duck Ay. fuligula. Mute Swan and Mallard were the only breeding waterbirds in the study area. Both the total number of waterbirds and the highest daily total in the first two counting sectors were greater between October and March 1992/93 than in our study. The decline in numbers was the greatest for Mallard, Pochard and Tufted Duck, while an increase was noted in Mute Swan and Yellow-legged / Caspian Gull Larus michahellis / cachinnans. The total number of waterbirds and the number of some species in the study area were significantly higher than expected solely based on its length compared to the length of the lowland Drava in Slovenia (125.7 km). The study area is conservationally important for Pochard, Tufted Duck and Black-headed Gull
Encefalitis zapadnog Nila je bolest koja se prenosi komarcima i široko je rasprostranjena na istočnoj hemisferi. Autohtona je u Africi, Srednjem Istoku, jugozapadnoj Aziji, Europi i Australiji. Virus ...encefalitisa zapadnog Nila (WNV) je poznat kao uzročnik akutne febrilne bolesti s osipom, poliartropatijom, limfadenopatijom i encefalitisom ponekad praćenim upalom jetre ili gušterače. Infekcija u ljudi je najčešće subklinička. Dvostruko su učestalije subkliničke naspram kliničkih manifestacija, a meningoencefalitis se pojavljuje u svega 0,7% inficiranih. Najveći čimbenik rizika za ozbiljne neurološke poteškoće i smrtni ishod je poodmakla dob preko 70 godina, te imunokompromitiranost. Virus uobičajeno cirkulira između ptica selica i komaraca te slučajno prelazi na ljude i konje. Povremeno ili sezonski, bolest se može pojaviti u obliku epidemija izvan svojih prirodnih žarišta, a uzročnik tada prelazi interkontinentalne barijere putovima ptica selica i/ili vektorima komarcima putem avionskog prometa. Epidemije WNV u ljudi su opisane u Egiptu, Izraelu, Južnoj Africi, Europi i Aziji. Virus je proširen u cijeloj Europi. Kao i u ostalih zoonoza, u rizične skupine ubrajamo populaciju koja je zbog boravka u prirodi, češće izložena prijenosnicima ovog virusa.
We investigated the scale and characteristics of spring migration of soaring birds in Bourgas district, SE Bulgaria during three 5-day periods in March (27th-31st), April (20th-24th) and May ...(12th-16th) 2008. Simultaneous counts were carried out from six observation points in two separate areas (Karnobat and Sredets), located 24.5 km and 37.3 km inland from the Black Sea coast, respectively. In total, 31,049 soaring birds of at least 27 species were counted, by far the most numerous being the White Stork Ciconia ciconia (23,358 ind.), followed by the Lesser Spotted Eagle Aquila pomarina (3,112 ind.). In Karnobat area, situated farther from the Black Sea coast, the total number of soaring migrants (21,231) was more than two-fold higher than in Sredets area (9,818). Overall, there was a significant difference in flock size and flight altitude within separate area (i.e. among observation points) as well as between the two observation areas and the three 5-day periods. However, there was a substantial variance in factors significantly affecting the flock size and flight altitude among most numerous individual species. In general, birds passed at much higher altitude above Karnobat area (mean flight altitude 208.3 m ± 6.4) compared to Sredets area (mean flight altitude 130.5 m ± 4.4). In both observation areas, northern direction was the most commonly observed flight direction (46.3% of all recorded flight directions). The highest numbers of soaring migrants passed in the late afternoon, between 15.00 and 18.00 hrs - 11,554 individuals (43.0% of all birds counted). The study confirmed that the front of Western Black Sea migration route, or "Via Pontica" as part of the Mediterranean/Black Sea Flyway in SE Bulgaria, is rather wide, since the magnitude of inland migration in Bourgas district can be compared with that along the Black Sea coast, at least during spring migration. Both observation areas qualify as Important Bird Areas (IBA) of European importance according to the several BirdLife International criteria. We recommend that any new wind farms built should avoid the area of Hisar Hill south of Karnobat and the NW parts of Sredets Municipality.
Značilnosti spomladanske selitve jadrajočih ptic v notranjosti JV Bolgarije
Za galebove je kao divlje ptice selice poznato da mogu na velike udaljenosti širiti različite patogene. Cilj je ovog istraživanja bio odrediti prevalenciju različitih vrsta roda Listeria u populaciji ...galebova koji se hrane na Zagrebačkom odlagalištu otpada. Sveukupno je pretraženo 390 galebova triju vrsta: galeb klaukavac - Larus michahellis; riječni galeb - L. ridibundus i burni galeb - L. canus. Najzastupljenija vrsta bila je L. innocua (14,4 %), dok je L. monocytogenes dokazana u 11,3 % ispitanih uzoraka. Prisutnost ostalih
vrsta zastupljena je u manjem postotku i to L. welshimeri (1,3 %), L. ivanovii (0,5 %) i L. seeligeri (0,3 %). Serotipizacija izolata L. monocytogenes provedena je molekularnim i konvencionalnim metodama, a većina izolata pripadala je serotipovima 1/2a i 1/2b. Prema našem saznanju, ova studija donosi prve rezultate istraživanja prisutnosti L. monocytogenes i drugih vrsta roda Listeria u divljih ptica u Hrvatskoj.
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:
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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.
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