Avtor/Urednik		Denac, Katarina
Naslov		Značilnosti gnezdišč mestne lastovke Delichon urbica v Kozjanskem parku
Prevedeni naslov		Characteristics of nest-sites chosen by house martin Delichon urbica at Kozjansko park
Tip		članek
Vir		Acrocephalus
Vol. in št.		Letnik 21, št. 100
Leto izdaje		2000
Obseg		str. 153-9
Jezik		slo
Abstrakt		During the course of the youth research camp at Kozjanski Park (June 25th July 2nd 1999) a research about the breeding ecology of House Martin Delichon urbica in urban and rural habitats was carried out. 826 nests located on 69 buildings in 10 towns were counted. 31% of the nests were occupied by House Martins, 68% were empty. For the remaining 1 % of the nests no information on occupancy could be obtained. The number of occupied nests was probably underestimated since some House Martins had already reared their first clutch. Some of the abandoned nests were occupied by House Sparrows Passer domesticus and three by Spanish Sparrow Passer hispaniolensis male. Nests were located mainly on one- and two-storied houses, but all larger colonies (more than 20 nests) were located on higher and bigger houses. Less than 5% of all the nests were located on shelves or supports. It seems very likely that shelter from above (roof), suitable wall material and openness in front of the wall are more important than the shelf itself. The mean height of the nests was 7.4 m (median 7 m), ranging from 3 to 14 m (n = 718 nests). 35% of the nests touched each other. Approximately 60% of the nests were no more than 0.5 m from each other. 89% of the nests were located under the roof and the remaining 11% in the corner of a window or under a bal cony.
Izvleček		Raziskavo ekologije gnezdišč mestne lastovke Delichon urbica v urbanih in ruralnih habitatih smo opravili med mladinsko raziskovalno delavnico v Kozjanskem parku (25.6.-2.7.1999). Popisali smo 826 gnezd na 69 stavbah v 10 krajih: 31% gnezd je bilo zasedenih, 68% nezasedenih; za 1% gnezd pa podatka o zasedenosti nismo imeli. Število zasedenih gnezd je bilo verjetno podcenjeno, saj so nekatere mestne lastovke do začetka popisa že speljale prvo leglo mladičev. Nekatera nezasedena gnezda so zasedli domači vrabci Passer dorimesticus, tri pa samec travniškega vrabca Passer hispaniolensis. Gnezda so bila pretežno na eno- in dvonadstropnih stanovanjskih hišah, večje kolonije (več kot 20 gnezd) pa so si uredile domovanje na višjih in širših stavbah. Manj kot 5% gnezd je bilo na policah in podporah. Verjetno so zadosti velik nadstrešek, primeren material stene in odprtost stene bolj pomembni kot sama polica. Mediana višine gnezd je bila 7 m, povprečna višina 7,4 m, gibala pa se je med 3 in 14 m (n = 718 gnezd). 35% gnezd se je med seboj dotikalo. Približno 60% gnezd je bilo medsebojno oddaljenih do 0,5 m. 89% gnezd , je bilo hameščenih pod glavnim nadstreškom, preostalih 11% pa pod notranjim nadstreškom (pod balkonom, v kotu okna).
Deskriptorji		BIRDS ECOSYSTEM NESTING BEHAVIOR