| Titre : | Ardea 97(4) - 2009 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Denver W. Holt, Auteur ;
Anne Paulson, Auteur ;
L. Michael Romero, Auteur
Dans
Ardea (97(4) 2009)
Long-eared Owl Asio otus nestlings usually depart from their nests at approximately 22 days of age, and cannot fly until approximately 35 days of age. Corticosterone has been implicated as a mechanism influencing nest departure in many avian spe[...]
Article
David H. Johnson, Auteur ;
Dries Van Nieuwenhuyse, Auteur ;
Jean-Claude Genot, Auteur
Dans
Ardea (97(4) 2009)
We offer a protocol for conducting standardized nocturnal broadcast (playback) surveys on Little Owls Athene noctua across the range of the species. Based on differing objectives of researchers, two intensity levels of survey efforts are outline[...]
Article
Marian Cieslak, Auteur ;
Zbigniew Kwiecinski, Auteur
Dans
Ardea (97(4) 2009)
During 2003-07, the moult of four captive Northern Hawk Owls Surnia utula was studied in Poznan Zoological Garden (Poland). The aviary was under daily observation and all breeding events were recorded. It was recognized that captive conditions d[...]
Article
Ana Claudia Rocha Braga, Auteur ;
Jose Carlos Motta-Junior, Auteur
Dans
Ardea (97(4) 2009)
Sampling owls in a reliable and standardized way is not easy given their nocturnal habits. Playback is a widely employed technique to survey owls. We assessed the influence of wind speed, temperature, air humidity, and moon phase on the response[...]
Article
Tony Warburton, Auteur
Dans
Ardea (97(4) 2009)
Article
Miriam H. Holsegard-Rasmussen, Auteur ;
Peter Sunde, Auteur ;
Kasper Thorup, Auteur ;
Lars B. Jacobsen, Auteur ;
Nina Ottesen, Auteur ;
Susanne Svenne, Auteur ;
Carsten Rahbek, Auteur
Dans
Ardea (97(4) 2009)
Locomotion is costly and should therefore serve a purpose according to the principle of optimal behaviour. In this light, we studied variation in nocturnal activity of radio-tagged Little Owls Athene noctua in Denmark where, after a decline of a[...]
Article
Michael Wink, Auteur ;
Abdel-Aziz El-Sayed, Auteur ;
Hedi Sauer-Guerth, Auteur ;
Javier Gonzalez, Auteur
Dans
Ardea (97(4) 2009)
For 97 owl taxa from 15 of the larger genera (some monotypic taxa are not represented) a molecular phylogeny was inferred from a combined dataset of nucleotide sequences of mitochondrial cytochrome b and nuclear RAG-1 genes. The molecular phylog[...]
Article
Iain R. Taylor, Auteur
Dans
Ardea (97(4) 2009)
Male Barn Owls Tyto alba delivered significantly more male than female Field Votes Microtus agrestis to their mates and nestlings in spring. The male bias was evident both in the prey stored at the nest and in the skeletal remains of prey in pel[...]
Article
Grzegorz Grzywaczewski, Auteur
Dans
Ardea (97(4) 2009)
Home ranges of 11 Little Owls Athene noctua were studied using radio telemetry in agricultural landscapes of eastern Poland during the breeding seasons of 2000-03. Owls were tracked from the time of egg laying until the young dispersed (15 April[...]
Article
Abolghasem Khaleghizadeh, Auteur ;
Tayebeh Arbabi, Auteur ;
Gholamreza Noori, Auteur ;
Mohammad Javidkar, Auteur ;
Alireza Shahriari, Auteur
Dans
Ardea (97(4) 2009)
We examined 250 pellets of Long-eared Owls Asio otus in 2006 and 2007 from winter roost sites in southeastern Iran. In contrast to the diet of wintering owls (e.g. mainly small mammals) reported elsewhere in the world, the diet of wintering Long[...]
Article
Katarina Denac, Auteur
Dans
Ardea (97(4) 2009)
Habitat selection of the Eurasian Scops Owl Otus scops was studied in Ljubljansko barje (central Slovenia, 180 km(2)) where abiotic conditions, especially climate, could be considered suboptimal for this xerothermophilic species. Data on the num[...]
Article
Karla A. Kinstler, Auteur
Dans
Ardea (97(4) 2009)
Visual observations of nocturnal species such as owls can be difficult. Knowledge of vocalizations associated with particular behaviours is therefore an extremely useful tool in studying owls in the field. For this purpose, I studied the vocaliz[...]
Article
Simon Birrer, Auteur
Dans
Ardea (97(4) 2009)
In this literature review, I examined 475 publications with information on the global diet of the Long-eared Owl Asio otus. Data within 312 publications were entered into a database, and quantitative diet data were available from 194 of these pu[...]
Article
James R. Duncan, Auteur ;
Scott R. Swengel, Auteur ;
Ann B. Swengel, Auteur
Dans
Ardea (97(4) 2009)
The Northern Saw-whet Owl Aegolius acadicus (NSWO) can be found year-round on its North American breeding range, but considerable numbers migrate south in autumn, with banding data documenting migration movements over 1000 km. Although the timin[...]
Article
Arnold B. van den Burg, Auteur
Dans
Ardea (97(4) 2009)
Avian studies have shown that food quality (amino acid load) can act as a limiting factor in reproduction and possibly breeding density. In owls, the role of food quality may have been largely overlooked due to the strong effect of food quantity[...]
Article
Kobi Meyrom, Auteur ;
Yoav Motro, Auteur ;
Yossi Leshem, Auteur ;
Shaul Aviel, Auteur ;
Ido Izhaki, Auteur ;
Francis Argyle, Auteur ;
Motti Charter, Auteur
Dans
Ardea (97(4) 2009)
Starting in 1983, nest boxes for Barn Owls Tyto alba were erected as part of a biological pest control program to deal with rodents, in Kibbutz Sde Eliyahu, and later in other agricultural fields and plantations in the Beit She an valley, Israel[...]
Article
Pertti Saurola, Auteur
Dans
Ardea (97(4) 2009)
In Finland, monitoring of 'common' birds of prey is based on two projects run by the Finnish Ringing Centre: the Raptor Grid (since 1982) and Raptor Questionnaire (since 1986). The Raptor Grid has produced sufficient data for analysing populatio[...]
Article
Roar Solheim, Auteur
Dans
Ardea (97(4) 2009)
From January to May 2006, 130 Tawny Owls were reported dead along the coastal areas of southern Norway. Of these, 79 were collected for a museum collection, most from the counties Vest-Agder (27), Aust-Agder (37), Telemark (9) and Vestfold (4). [...]
Article
Kumron Leadprathom, Auteur ;
Vijak Chimchome, Auteur ;
Sara Bumrungsri, Auteur
Dans
Ardea (97(4) 2009)
Information on the Collared Scops Owl Otus lettia in Thailand is extremely limited and this study examined its nesting ecology. From August 2006 - September 2007, 23 nests were found and observed in Chanthaburi Province. The breeding season for [...]
Article
Johan de Jong, Auteur ;
Arnold van den Burg, Auteur
Dans
Ardea (97(4) 2009)
Article
Birgit Block, Auteur
Dans
Ardea (97(4) 2009)
The density and reproduction of Long-eared Owls Asio otus were studied in a 5000 ha study area of Havelland, Brandenburg, Germany from 1984 through 2007. Locations of territorial Long-eared Owls were mapped from the end of January until the end [...]
Article
Vasileios A. Bontzorlos, Auteur ;
Salvador J. Peris, Auteur ;
Cristos G. Vlachos, Auteur ;
Dimitrios E. Bakaloudis, Auteur
Dans
Ardea (97(4) 2009)
Diet composition of the Barn Owl Tyto alba was studied in agricultural landscapes in Thessaly, Greece, for 3 years (2003-05). A total of 852 Rattus spp. individuals were identified from 10 065 pellets, which accounted for 2.9% by frequency and 2[...]
Article
Tony Warburton, Auteur
Dans
Ardea (97(4) 2009)
The Philippine Archipelago is widely acknowledged as one of the world's major biodiversity and endemism 'hot-spots'. However, as a result of a burgeoning human population increase and resultant destruction and exploitation of the native forests [...]
Article
L. Michael Romero, Auteur ;
Denver W. Holt, Auteur ;
Julie L. Petersen, Auteur
Dans
Ardea (97(4) 2009)
Long-eared Owls Asio otus were flushed and captured from communal winter roosts and nesting seasons to assess both initial and stress-induced corticosterone concentrations. We examined blood samples from 16 males and 8 females in the winter, and[...]
Article
Adwan H. Shehab, Auteur ;
David H. Johnson, Auteur
Dans
Ardea (97(4) 2009)
The distribution of owls in Syria was investigated during a larger project to plot the distribution of small mammals in the country. Owl pellets were collected from 92 localities representing most of the habitats in Syria; during this work, seve[...]
Article
Vesna Tutis, Auteur ;
Dragan Radovic, Auteur ;
Davor Cikovic, Auteur ;
Sanja Barisic, Auteur ;
Jelena Kralj, Auteur
Dans
Ardea (97(4) 2009)
We surveyed the Ural Owl Strix uralensis macroura from 1993 to 2007 to determine the geographic range of the species in Croatia and to provide information on its density and habitat preferences. We conducted playback surveys at 365 survey points[...]
Article
Randolph F. Lauff, Auteur
Dans
Ardea (97(4) 2009)
A nine year search for the first nesting Boreal Owls Aegolius funereus in Nova Scotia, Canada culminated in the discovery of two nests in Cape Breton Highlands National Park of Canada in 2004. In 2005, one nest north of the Park and another nest[...]
Article
Denver W. Holt, Auteur ;
Michael T. Maples, Auteur ;
Julie L. Petersen-Parret, Auteur ;
Mark Korti, Auteur ;
Mathew Seidensticker, Auteur ;
Kathy Gray, Auteur
Dans
Ardea (97(4) 2009)
Snowy Owl Bubo scandiacus nest mounds from Barrow, Alaska, were characterized measuring several variables from 114 nests and 2280 random mounds.. Mound height appeared to be the most important trait, as nest mounds averaged about 1 m tall, and w[...]
Article
Andriy-Taras Bashta, Auteur
Dans
Ardea (97(4) 2009)
Until the end of the 20th century, the distribution of the Ural Owl Strix uralensis was limited to the Carpathian Mountain area of southwestern Ukraine. The abundance and distribution of Ural Owls in the Ukrainian Rozlochchya area was investigat[...]
Article
Christian Artuso, Auteur
Dans
Ardea (97(4) 2009)
Random-stratified spring nocturnal surveys using tape playback were conducted for Eastern Screech Owls Megascops asio from 2004 through 2007 in Winnipeg, Manitoba, Canada, at the northern periphery of its range. Surveys were stratified by (1) hu[...]
Article
F. J. Koning, Auteur ;
H. J. Koning, Auteur ;
G. Baeyens, Auteur
Dans
Ardea (97(4) 2009)
We monitored the dynamics of owls, raptors and corvids within the 3400 ha of the Amsterdam Water Supply Dunes in the western Netherlands from 1961 through 2007. In the 1930s and 1950s, afforestation projects were initiated. In 1961 the first Taw[...]
Article
Javkhlantsetseg Tumurbat, Auteur ;
Gombobaatar Sundev, Auteur ;
Reuven Yosef, Auteur
Dans
Ardea (97(4) 2009)
We examined 11 Eagle Owl Bubo bubo nests in Mongolia during 2004-06. Five nests were located in cliffs, three in rock columns, two in sandy precipices and one on a rock ledge. Mean height (above ground) of the nest site structure was 7.6 (SD 5.9[...]
Article
Johan de Jong, Auteur
Dans
Ardea (97(4) 2009)
By 1979, the Barn Owl Tyto alba had almost disappeared from the province of Friesland, northern Netherlands. With the placement of nest boxes and by specific forms of landscape restoration, the minimum breeding population of 8 pairs increased to[...]
Article
Roar Solheim, Auteur ;
Jon Bekken, Auteur ;
Rune Bjornstad, Auteur ;
Frode N. Bye, Auteur ;
Torger K. Hagen, Auteur ;
Kjell Isaksen, Auteur ;
Hallvard Strom, Auteur
Dans
Ardea (97(4) 2009)
The Ural Owl Strix uralensis meets its westernmost distribution in Hedmark County, southeast Norway. Since 1979 we have provided the species with nest boxes in this region. A total of 80 nest boxes were put out in prime Ural Owl habitat, startin[...]
Article
D. I. Leech, Auteur ;
C. R. Shawyer, Auteur ;
C. J. Barimore, Auteur ;
H. Q. P. Crick, Auteur
Dans
Ardea (97(4) 2009)
Once regarded as Britain's most abundant owl species, Barn Owl Tyto alba numbers declined substantially from 1850 to 1950. While more recent surveys suggest that numbers may now have stabilized, breeding range declines and the species' unfavoura[...]
