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1.
Učenje izven učilnice - pedagoški eksperiment, ptice ob cerkniškem jezeru
Neža Baraga, 2017, master's thesis

Abstract: Magistrska naloga je sestavljena iz teoretičnega, empiričnega in praktičnega dela. Vsi trije deli so zaključene celote, vendar se med seboj dopolnjujejo in nadgrajujejo. Teoretični del sestavljajo trije sklopi: pedagoški sklop (predstavljeno je učenje izven učilnice, izkustveno učenje in učni predmet spoznavanje okolja s stališča učenja izven učilnice in izkustvenega učenja ter stališča življenjskih prostorov), psihološki sklop (predstavljene so psihofizične lastnosti šestletnikov) in geografski sklop (opisana sta Cerknica in Cerkniško jezero). V empiričnem delu je predstavljena empirična raziskava, ki dokazuje, da je znanje učencev po pouku izven učilnice višje kot pri tradicionalnem pouku v učilnici. V praktičnem delu sta priloženi učni pripravi, potek dela in evalvacija narejenega za dve učni uri spoznavanja okolja na enako temo – za pouk izven učilnice in za tradicionalni pouk.
Keywords: Učenje izven učilnice, izkustveno učenje, spoznavanje okolja, prvi razred, ptice.
Published: 28.11.2017; Views: 812; Downloads: 198
.pdf Full text (1,21 MB)

2.
Novejši podatki o vsebnosti semen vrst iz rodu Ambrosia v krmi za prostoživeče ptice v Sloveniji
Breda Jakovac-Strajn, Kristina Jelka Pozvek, Tanja Prosenik, Mario Lešnik, Igor Ujčič Vrhovnik, 2013, original scientific article

Abstract: Vdihavanje peloda vrst iz rodu Ambrosia lahko povzroči preobčutljivostne reakcije. Krma za prostoživeče ptice je eden od dejavnikov, ki pripomorejo k širjenju omenjenih rastlin. Leta 2010 so zato k Direktivi o nezaželenih snoveh v živalski krmi (2002/32/ES) dodali aneks, da lahko krma za živali, ki vsebuje nezmleta žita, vsebuje do 50 mg semen vrst iz rodu Ambrosia v kilogramu krme (UL L 290/54). Podatkov o vsebnosti semen te rastline v krmi je zelo malo, zato smo z mikroskopsko metodo preiskali 40 vzorcev krme za prostoživeče ptice. Semena ambrozije je vsebovalo 20 vzorcev oziroma 50 %. Ugotovljeno število semen v kilogramu posameznega vzorca je bilo od 2 do 146 (10 mg do 774 mg). V skladu s predpisi smo vsebnosti preračunali relativno na vzorec z 12 % vlage in ugotovili, da je dovoljeno mejo presegalo 5 vzorcev (12,5 %).
Keywords: Ambrosia, semena, krma, analize, mikroskopija, ptice
Published: 13.07.2017; Views: 528; Downloads: 75
.pdf Full text (182,54 KB)
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3.
Izbira habitata pri izbranih vrstah vodnih ptičev na Račkih ribnikih
Urška Martinc, 2015, undergraduate thesis

Abstract: V letu 2011 smo v obdobju od 26. 6. 2011 do 14. 8. 2011 opravljali popise izbranih vrst vodnih ptic na Račkih ribnikih v Krajinskem parku Rački ribniki – Požeg (SV Slovenija) na Velikem ribniku, Gajiču, Malem ribniku ter na treh stranskih bazenih. Popis smo opravljali z namenom, da ugotovimo izbiro habitatov izbranih vrst vodnih ptic, številčnost vrst ter število gnezd v času opazovanja. Popisovali smo 9 vrst vodnih ptičev in sicer: labod grbec Cygnus olor, mlakarica Anas platyrhynchos, sivka Aythya ferina, kostanjevka Aytya nyroca, čopasta črnica Aythya fuligula, mali ponirek Tachybaptus ruficollis, čopasti ponirek Podiceps cristatus, zelenonoga tukalica Gallinula chloropus ter liska Fulica atra. Območje raziskave smo razdelili na pet habitatov: rogoz, plavajoče rastline, mešano (plavajoče rastline in rogoz), odprto ter obrežje. Popis smo izvedli šestnajstkrat. Popisovali smo ob različnih delih dneva. Dan smo razdelili na štiri dele. V času od 8.00 do 11.00 (zjutraj) smo popis izvedli dvakrat, od 11.00 do 14.00 (opoldan) šestkrat, od 14.00 do 17.00 (popoldan) petkrat ter od 17.00 do 20.00 (zvečer) trikrat. Ribnike in bazene smo opazovali s kopnega, s ceste, ki poteka med ribniki ter z opazovalnice, ki se nahaja na južni strani ribnika Gajič. Bazene smo pregledali v celoti. Najštevilčnejša vrsta je bila liska, najmanj smo prešteli osebkov laboda grbca. Vse osebke smo opazili v habitatu plavajoče rastline in odprto. Največ osebkov smo popisali v habitatu odprto, najmanj pa v habitatu rogoz. Opazili smo 6 gnezd, štiri so pripadala čopastemu ponirku.
Keywords: Rački ribnik, izbira habitata, vodne ptice, številčnost vrst
Published: 22.10.2015; Views: 1046; Downloads: 63
.pdf Full text (3,19 MB)

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Dinamika prehrane pegaste sove Tyto alba na gradu Rače
Andrej Šorgo, Irena Ferlinc, Nataša Posel, 1994, original scientific article

Keywords: ptice, ornitologija, sove, prehrana
Published: 10.07.2015; Views: 673; Downloads: 25
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6.
Merjenje geografske razširjenosti ptic
Franc Janžekovič, 2000, original scientific article

Abstract: The author presents six methods for estimating the geographical distribution of birds. The estimates were made on 216 species, all of them probable or confirmed Slovene breeders. Three approaches to the distribution estimates were compared: (1) distance between the most distant nest-sites; (2) surface area of the inhabited territory, (3) the habita's specific features. It was concluded that the results between different methods were more or less related, but that the methods were not fully comparable (equivalent). The distances between the most distant nest-sites, which are measured parallel with latitude and longitude, are not suitable for the surface area covered by Slovene territory. With them, distributions in large areas are usually measured. Estimates of the surface area of inhabited areas or presentations of species' distribution with squares are only approximate and in some cases misleading. Nests or nest-sites, which are in fact points, are usually extrapolated on the 10 x 10 km squares (=100 km2). This is why an accurate geolocation of concrete data must be assured in the preparations for the new mapping of birds
Keywords: ptice, Aves, geografska razširjenost, gnezdilke, Slovenija
Published: 10.07.2015; Views: 730; Downloads: 38
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7.
Prehrana pegaste sove Tyto alba na Goričkem
Franc Janžekovič, Melita Ficko, 2000, original scientific article

Abstract: Na območju tradicionalne kulturne krajine na Goričkem smo preučevali prehrano pegaste sove Tyto alba. Izbljuvke smo nabrali v letih 1997 in 1998 na podstrešjih cerkva v Domajševcih, Adrijancih in Hodošu. Sova je plenila 18 različnih vrst sesalcev, med njimi tudi navadnega netopirja Myotis myotis. Najpomembnejša sestavina plena je bila poljska voluharica Microtus arvalis z 39% deležem in s 54% v deležu biomase. Plen je izbirala opurtunistično, kar se izkazuje skozi široko prehranjevalno nišo, indeks trofizične diverzitete je 0,80. Izbirala je predvsem male sesalce povprečne telesne mase 10 do 30 g
Keywords: ptice, sove, pegasta sova, Tyto alba, prehrana, Goričko
Published: 10.07.2015; Views: 1032; Downloads: 37
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8.
Prehrana kormorana Phalacrocorax carbo na območju reke Save od Ljubljane do Zagorja (Slovenija)
Marijan Govedič, Franc Janžekovič, Ivan Kos, 2002, original scientific article

Abstract: Diet of Great Cormorants Phalacrocorax carbo occurring on the Sava river between Ljubljana and Zagorje was studied in the winter 1998/99 by means of regurgitated pellets, collected at the Cormorants' night roost at Hotič. Among 473 collected pellets, 69.8 % contained remains of fish. The pellets also contained worms Nematoda and tapeworms Cestoda, remains of caddis flies trichoptera, snails Gastropoda and a frog Rana sp. In separate pellets, remains of 1 to 69 fish (median 2, average 3.9) were found: in 41.8 % pellets remains of 1 fish, in 93.6 % remains of up to 10 fish. Altogether, remains of 1,288 fish were found. Length and weight were determined for 1,279 of them. Total weight of these fish was estimated at 57 kg. The diet consisted of 12 fish species (trout Salmo trutta, grayling Thymallus thymallus, chub Leuciscuscephalus, nase Chrondrostoma nasus, danube roach Rutilus pigus virgo,roach Rutilus rutilus, barbel Barbus barbus, bream Abramis brama, bleak Alburnus alburnus, pike Esox lucius, perch Perca fluviatilis and ruffe Gymnocephalus cernuus). The diet was dominated by Cyprinidae (85.8 % by number, 90.5 % by biomass). Gravling and trout were represented with 6.5 % by number and 3.6 % by mass and pike, perch and ruffe in 7.3 % by number and 3.6 % by mass. Inside Cyprinidae chub with 16.4 % by number and 38.6 by biomass and nase with 3.9 % by number and 16.5 % by biomass were most frequent. The proportion of undetermined Cyprinidae was 57.1 % by number and 28.5 % by mass. Prey size ranged from 23 to 345 mm. Most frequent length class was 70-170 mm (50 % by number and 19 % by mass), but large individuals (170 mm) were most important (25.0 % by number and 80.1 % by mass) in the diet of Great Cormorants. The numbers of specimens of Cyprinidae, Percidae and Salmonidae between months were significant, while the numbers of specimens of determined Cyprinids were not. We concluded that the differences in the investigated area depended more on random detection of fish. Chub and nase arespecies with shoaling habits, and were assumed that they were easier detectable by Great Cormorants than the non-shoaling species
Keywords: ptice, kormorani, ribojede ptice, Phalacrocorax carbo, prehrana, zimska prehrana, analize, Slovenija, Sava
Published: 10.07.2015; Views: 762; Downloads: 29
URL Link to full text

9.
Odnosi med telesno velikostjo, razširjenostjo in gostoto gnezdečih ptic v Sloveniji
Franc Janžekovič, 2002, original scientific article

Abstract: Through the analysis of empirical data on the breeders of Slovenia, relations between their distribution, abundance and body size were being assessed. Two hypotheses were tested: 1) species with greater distribution have greater abundance than species limited to smaller geographical regions: 2) larger species have lower average abundance than smaller. The relationship between distribution and abundance of the species breeding in Slovenia was in accordance with the exponent growth, while the correlation coefficient was high and positive (R=0,75). Correlation between distribution of species and number of breeding pairs was also significant and positive (R=0,88). Larger species had smaller average abundance and therefore smaller number of breeding pairs than smaller birds. Correlation between body size and abundanceof pairs was negative (r=-0,41). The difference in abundance of pairs between species with larger and smaller body size is presumably the result of different access to natural resources (mainly food). In larger species, the same quantity of limited natural resources is distributed among smaller number of individuals, while in small body size species this quantity is distributed among greater number of birds
Keywords: biologija, zoologija, ornitologija, ptice, Aves, telesna velikost, razširjenost, številčnost, gnezdilke, Slovenija
Published: 10.07.2015; Views: 732; Downloads: 28
URL Link to full text

10.
Velikost legla, velikost jajc in fenologija prihoda na gnezdišče pri navadni čigri Sterna hirundo v SV Sloveniji
Franc Janžekovič, Borut Štumberger, Damijan Denac, 2003, original scientific article

Abstract: Common Terns Sterna hirundo began to return to their breeding sites on the Drava river in early April. The article presents the measurement of 471 Common Terns' eggs from 184 nests. Average clutch size was 2.55 (median = 3, min = 1, max = 4) eggs per nest, with an average egg size of 41.1 x 30.3 mm. There was no characteristic difference in the average egg length between the two-, three- and four-egg clutches. Concerning the average breadth of eggs, characteristic differences were noted particularly in four-egg clutches. Correlation between egg length and breadth was very loose (r = 0.25, p 0.0001). Egg length was more variable (CV%EL =4.33) than egg breadth (CV%EB = 2.96). Size patterns in Common Terns' clutches were not quite consistent with the brood-reduction hypothesis, according to which every egg laid in a single nest is smaller than the previous one
Keywords: ptice, čigre, navadna čigra, Sterna hirundo, prvi pomladanski prihod, velikost legla, velikost jajc, Slovenija, severovzhodna Slovenija
Published: 10.07.2015; Views: 747; Downloads: 42
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