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You searched for: Journal Acta ornithologica Remove constraint Journal: Acta ornithologica Publication Year 2013 Remove constraint Publication Year: 2013 Source 2013 v.48 no.2 Remove constraint Source: 2013 v.48 no.2
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1. Autumn Migration of Common Cranes Grus grus Through the Italian Peninsula: New Vs. Historical Flyways and Their Meteorological Correlates

Author:
Mingozzi, Toni; Storino, Pierpaolo; Venuto, Gianpalmo; Alessandria, Gianfranco; Arcamone, Emiliano; Urso, Salvatore; Ruggieri, Luciano; Massetti, Luciano; Massolo, Alessandro
Source:
Acta ornithologica 2013 v.48 no.2 pp. 165-177
ISSN:
0001-6454
Subject:
Grus grus; autumn; climate; databases; flocks; meteorological data; migratory behavior; rivers; stopover sites; Adriatic Sea; Balkans; Central European region; Eastern European region; Italy
Abstract:
... Since the 1990s, Common Cranes migrating in autumn through Italy have increased significantly both in number and in flock size. In the present study we provided a countrywide profile of autumn crane migration across Italy between 2001 and 2007 (486 records). To investigate the association of climatic characteristics with temporal and spatial migration patterns, we used weather data and climate ano ...
DOI:
10.3161/000164513X678810

2. Breeding Biology and Fledgling Survival in a Carrion Crow Corvus corone Population of Southern Spain: A Comparison of Group and Pair Breeder

Author:
Roldán, María; Martín-Gálvez, David; Rodríguez, Juan; Soler, Manuel
Source:
Acta ornithologica 2013 v.48 no.2 pp. 221-235
ISSN:
0001-6454
Subject:
Corvus corone; Cuculidae; biogeography; birds; breeding; brood parasitism; clutch size; eggs; females; fledglings; meteorological parameters; nestlings; nests; population; reproductive performance; Spain
Abstract:
... Cooperative breeding is not common among birds, although its frequency is relatively high within the Corvidae family. We study the effect of group breeding on the reproductive biology of the Carrion Crow Corvus corone, a species that was usually described as non-cooperative. Our study population is located at the southern limit of the distribution of the species, which confers special characterist ...
DOI:
10.3161/000164513X678865

3. Center-Periphery Gradients of Chick Survival in the Colonies of Whiskered Terns Chlidonias hybrida may be Explained by the Variation in the Maternal Effects of Egg Size

Author:
Minias, Piotr; Janiszewski, Tomasz; Lesner, Bartosz
Source:
Acta ornithologica 2013 v.48 no.2 pp. 179-186
ISSN:
0001-6454
Subject:
Chlidonias; maternal effect; survival rate; nests; breeding; eggs; models; predators; hatching; predation; nesting; chicks; adverse effects; Poland
Abstract:
... Central parts of avian colonies provide better safety against predators and, thus, are likely to be occupied by pairs of high quality. Therefore, spatial variation in the quality of breeders and predation rate within colonies should be directly reflected by the gradients of breeding success and chick survival. We have investigated relationships between nest location characteristics and survival of ...
DOI:
10.3161/000164513X678829

4. Consequences of Experimental Changes in the Rearing Conditions of Blue Tit Cyanistes caeruleus and Great Tit Parus major Nestlings

Author:
Bańbura, Jerzy; Bańbura, Mirosława; Glądalski, Michał; Kaliński, Adam; Marciniak, Barbara; Markowski, Marcin; Michalski, Marek; Nadolski, Jerzy; Skwarska, Joanna; Wawrzyniak, Jarosław; Zieliński, Piotr
Source:
Acta ornithologica 2013 v.48 no.2 pp. 129-139
ISSN:
0001-6454
Subject:
Cyanistes caeruleus; Parus major; Tenebrio molitor; cell-mediated immunity; fledglings; food availability; larvae; nestlings; physiological state; probability; rearing; triacylglycerols
Abstract:
... Physiological functions of growing nestlings are thought to be traded-off in relation to rearing conditions, with the resulting physiological state of fledglings having important long-lasting consequences for their fitness. By manipulating brood size up and down, and, separately, by supplying additional food (mealworms — larvae of Tenebrio molitor) we tested if alterations of the rearing condition ...
DOI:
10.3161/000164513X678784

5. Distribution, Phenology and Long-Term Population Trends in Blacktailed Godwits Limosa Limosa wintering in Coastal France

Author:
Bocher, Pierrick; Robin, Frédéric; Deceuninck, Bernard; Caillot, Emmanuel
Source:
Acta ornithologica 2013 v.48 no.2 pp. 141-150
ISSN:
0001-6454
Subject:
Limosa limosa; autumn; birds; breeding season; coasts; conservation areas; habitats; phenology; population growth; winter; wintering grounds; France; Iberian Peninsula; Iceland; United Kingdom; Western European region
Abstract:
... Species with known long-term changes in abundance and distribution enable exploring the role of newly accessible sites in population regulation. In Western Europe, the Black-tailed Godwit Limosa limosa islandica is one of the few wintering shorebirds with increasing populations. The French coasts comprise a major wintering site within its global wintering area, with several thousand individuals at ...
DOI:
10.3161/000164513X678793

6. Maternal Investment in Diamond Firetails Stagonopleura guttata: Female Spot Numbers Predict Egg Volume and Yolk Lutein Content

Author:
Zanollo, Valeria; Griggio, Matteo; Myers, Steven; Robertson, Jeremy; Stangoulis, James; Guild, Georgia; Kleindorfer, Sonia
Source:
Acta ornithologica 2013 v.48 no.2 pp. 253-261
ISSN:
0001-6454
Subject:
antioxidants; birds; body condition; color; egg yolk; eggs; embryogenesis; females; hormones; lipids; lutein; males; nutrients; parents; prediction; progeny; reproduction; rump; zeaxanthin
Abstract:
... It is widely known that parents invest into reproduction to increase offspring survival and thereby increase reproductive success. In particular, female birds allocate maternal resources including lipids, hormones, and nutrients into the egg yolk. Carotenoid pigments, which are responsible for the characteristic yellow, orange, and red colours, are particularly important as antioxidant for the dev ...
DOI:
10.3161/000164513X678892

7. Natal and Breeding Dispersal in Mute Swans Cygnus olor: Influence of Sex, Mate Switching and Reproductive Success

Author:
Włodarczyk, Radosław; Wieloch, Maria; Czyż, Stanisław; Dolata, Paweł T.; Minias, Piotr
Source:
Acta ornithologica 2013 v.48 no.2 pp. 237-244
ISSN:
0001-6454
Subject:
Cygnus olor; breeding; breeding sites; climate; females; humans; males; migratory behavior; philopatry; probability; swans; urban areas; winter; Poland
Abstract:
... Dispersive behaviour in birds is shaped by a set of different external factors (climate, human pressure, territory quality), as well as by internal constraints (reproductive strategy, sex, age, competitive abilities). Natal and breeding dispersal was studied in the migratory population of the Mute Swan Cygnus olor in Poland. The species showed male-biased natal dispersal with mean dispersal distan ...
DOI:
10.3161/000164513X678874

8. One Hour of Sampling is Enough: Great Tit Parus major Parents Feed Their Nestlings Consistently Across Time

Author:
Pagani-Núñez, Emilio; Senar, Juan Carlos
Source:
Acta ornithologica 2013 v.48 no.2 pp. 194-200
ISSN:
0001-6454
Subject:
Parus major; age; birds; breeding; diet; nestlings; nests; parents; weather
Abstract:
... Parental investment is a key topic in avian ecology, and many authors have focused on nestling-feeding behaviour to analyse this issue. Surprisingly, most studies have based their results on feeding patterns recorded over periods of only one or two hours, possibly leading to over generalizations regarding temporal-dependent behavioural patterns. Irrespective of nestling age or brood size, if we us ...
DOI:
10.3161/000164513X678847

9. Parent Recognition in Chicks of the Ground-Nesting, Nidifugous Saunders's Gull Saundersilarus saundersi

Author:
Yoon, Jongmin; Joo, Eun-Jin; Yoon, Hyun-Joo; Park, Hyon-Sook; Park, Shi-Ryong
Source:
Acta ornithologica 2013 v.48 no.2 pp. 245-252
ISSN:
0001-6454
Subject:
locomotion; Laridae; nests; parents; breeding; vocalization; adults; hatching; progeny; nesting; chicks; nestlings
Abstract:
... In birds, offspring-parent interactions play an essential role in facilitating offspring survival at nest-leaving. In contrast to nidicolous nestlings, nidifugous chicks are expected to hatch in ground nests, leave the nest soon after hatching, and presumably exhibit precise parent-offspring recognition during this time. Yet, some studies document variation in nidifugous behavior and offspring-par ...
DOI:
10.3161/000164513X678883

10. Short-Term Effects of a Wildfire on the Endangered Dupont's Lark Chersophilus duponti in an Arid Shrub-Steppe of Central Spain

Author:
Pérez-Granados, Cristian; López-Iborra, Germán M.; Serrano-Davies, Eva; Noguerales, Víctor; Garza, Vicente; Justribó, Jorge H.; Suárez, Francisco
Source:
Acta ornithologica 2013 v.48 no.2 pp. 201-210
ISSN:
0001-6454
Subject:
adverse effects; birds; grasses; habitats; prescribed burning; shrublands; summer; wildfires; Spain
Abstract:
... In Europe, Dupont's Lark Chersophilus duponti is a threatened open-habitat bird. Prescribed burning has sometimes been proposed for its conservation, but without evidence of its effectiveness. To evaluate the short-term effects of a summer wildfire on this species, we performed several transect counts in the burnt and unburnt parts of a shrubsteppe in central Spain. The same transects were counted ...
DOI:
10.3161/000164513X678856

11. Survival of a Mountaintop Hummingbird, the Hyacinth Visorbearer Augastes scutatus, in Southeastern Brazil

Author:
Rodrigues, Licléia da Cruz; Martins, Fernando Ibanez; Rodrigues, Marcos
Source:
Acta ornithologica 2013 v.48 no.2 pp. 211-219
ISSN:
0001-6454
Subject:
females; hummingbirds; males; models; mountains; national parks; probability; Brazil
Abstract:
... The key demographic parameters of a population of Hyacinth Visorbearer, Augastes scutatus, an endemic hummingbird of the mountaintops of southeastern Brazil, are described for the first time. The study was conducted in the Alto do Palácio region, in the Serra do Cipó National Park, southeastern Brazil. Monthly, from August 2007 to July 2009, the Hyacinth Visorbearer individuals were captured in mi ...
DOI:
10.3161/000164513X678801

12. The Importance of Besh Barmag Bottleneck (Azerbaijan) for Eurasian Migrant Birds

Author:
Heiss, Michael
Source:
Acta ornithologica 2013 v.48 no.2 pp. 151-164
ISSN:
0001-6454
Subject:
Anser; Aquila; Clanga; Falco cherrug; Oxyura leucocephala; Pelecanus crispus; Sturnus vulgaris; Vanellus; autumn; birds of prey; coastal plains; environmental factors; migratory behavior; monitoring; spring; surveys; water birds; Azerbaijan; Caspian Sea
Abstract:
... Migrating birds are known to avoid topographical barriers. At these barriers, the local environmental conditions often lead to a high concentration of migrants at certain corridors or points usually referred to as ‘bottlenecks’. The Greater Caucasus and the Caspian Sea are such barriers for migrating birds in south-western Asia. A narrow coastal plain between the Greater Caucasus and the Caspian S ...
DOI:
10.3161/000164513X678900

13. Influence of Environmental Factors on the Breeding Success of Cinereous Vultures Aegypius monachus

Author:
Moreno-Opo, Rubén; Fernández-Olalla, Mariana; Margalida, Antoni; Arredondo, Ángel; Guil, Francisco
Source:
Acta ornithologica 2013 v.48 no.2 pp. 187-193
ISSN:
0001-6454
Subject:
Aegypius monachus; anthropogenic activities; birds of prey; breeding; endangered species; environmental factors; forests; habitat preferences; humans; landscapes; nesting; nesting sites; nests; population; shrubs; trees; Spain
Abstract:
... Breeding success determines the fate of bird populations and, therefore, understanding its determinants is an important issue for the application of conservation measures for endangered species. Breeding success depends on diverse, not mutually exclusive, effects such as the life strategies developed by species, environmental, ecological and anthropogenic factors. The influence of nest and nest tr ...
DOI:
10.3161/000164513X678838