| Titre : | Ardeola 62(2) - DEC 2015 |
| Type de document : | Bulletin |
| Paru le : | 00/00/0000 |
Dépouillements
Article
Ruben Moreno-Opo, Auteur ;
Gorka Belamendia, Auteur ;
Pablo Vera, Auteur ;
Alejandro Onrubia, Auteur ;
Alberto Monteagudo, Auteur ;
Javier de la Puente, Auteur
Avian migration strategies may include intra-specific variations, also known as differential migration. These migratory adaptations between conspecifics are particularly important given their implications for population dynamics. We aimed to exa[...]
Article
Csaba Pigniczki, Auteur ;
Zsolt Vegvari, Auteur
Using the Hungarian spoonbill colour-ringing scheme database, which spans 12 years of 11 cohorts (2003-2013), we clarify dispersal patterns of spoonbills in the Carpathian basin, a part of the pannonian biogeographical region. We found that duri[...]
Article
Jeno J. Purger, Auteur ;
Eduard Kletecki, Auteur ;
Balazs Trocsanyi, Auteur ;
Jasmina Muzinic, Auteur ;
Gabriella L. Szeles, Auteur ;
Jozsef Lanszki, Auteur
Predation may cause important losses to the biodiversity of small islands. In this study we analysed the predation pressure on clutches of nesting birds in two islands of the Zadar Archipelago, Olib and Silba, which belong to an Important Bird A[...]
Article
M. Angeles Rojo, Auteur ;
M. Angeles Hernandez, Auteur ;
Francisco Campos, Auteur ;
Tomas Santamaria, Auteur ;
Susana Dias, Auteur ;
Patricia Casanueva, Auteur
Investigating the spatial distribution of avian blood parasites can shed light on the occurrence of host switching and expansion in new territories, two key factors for which to account when addressing future parasite impacts on vertebrates. We [...]
Article
Juan P. Castano, Auteur ;
Juan F. Sanchez, Auteur ;
Miguel A. Diaz-Portero, Auteur ;
Monica Robles, Auteur
We studied initial dispersal of juvenile black vultures Aegypius monachus from 2010 to 2012 in Castilla-La Mancha (central Spain) by using GPS satellite transmitters. Our aim was to get information about dispersal areas and home ranges and to st[...]
Article
Nerea Pagaldai, Auteur ;
Juan Arizaga, Auteur
During the autumn migration period, northern populations commonly reach southern stopover sites where they meet conspecifics that may still be breeding or at least still at their breeding sites. Establishing whether local breeding birds overlap [...]
Article
Wlodzimierz Meissner, Auteur
This long-term study (10 years) aimed to check if the sex-ratio of dunlins Calidris alpina at a stopover site in the southern Baltic region was biased. Two age classes among non-juvenile dunlins were recognised: immatures (2nd calendar year) and[...]
Article
Jaroslaw Wawrzyniak, Auteur ;
Adam Kaliński, Auteur ;
Michal Gladalski, Auteur ;
Miroslawa Banbura, Auteur ;
Marcin Markowski, Auteur ;
Joanna Skwarska, Auteur ;
Piotr Zieliński, Auteur ;
Iwona Cyzewska, Auteur ;
Jerzy Bańbura, Auteur
Numerous studies from different locations in Europe show that nest-box populations of tits in urban areas lay earlier and produce fewer eggs than do tits in rural areas. We collected data on laying dates and clutch size in two great tit Parus ma[...]
Article
Sergey Mikhailovich Shekhovtsov, Auteur ;
Alexander Viktorovich Sharikov, Auteur
Territorial calls (hooting) of two tawny owl subspecies, Strix aluco aluco (the eastern European subspecies) and Strix aluco willkonskii (the Caucasian subspecies), were recorded from October 2007 to february 2013, to study variation between ind[...]
Article
A. J. Carpio, Auteur ;
J. Oteros, Auteur ;
J. Vicente, Auteur ;
F. S. Tortosa, Auteur ;
J. Guerrero-Casado, Auteur
The red-legged partridge Alectoris rufa is not only the most important bird game species but also an important prey species for many predators in Iberia. However, its populations have significantly declined in recent decades, principally as the [...]
Article
Jose Jimenez, Auteur ;
Ruben Moreno-Opo, Auteur ;
Manuel Carrasco, Auteur ;
Jordi Feliu, Auteur
Monitoring bird populations is essential for the proper management of natural areas, since birds serve as indicator species to assess the conservation status of ecosystems. Therefore, it is important to estimate population sizes using methods of[...]
Article
Juan Arizaga, Auteur ;
Daniel Alonso, Auteur ;
Jose A. Cortés, Auteur ;
Ton Eggenhuizen, Auteur ;
Julien Foucher, Auteur ;
Dieter Franz, Auteur ;
Javier García, Auteur ;
Fred Koning, Auteur ;
Michel Leconte, Auteur ;
Hamid Rguibi, Auteur ;
Thijs Valkenburg, Auteur ;
Pablo Vera, Auteur ;
Keith A. Hobson, Auteur
Understanding the migratory connectivity of migrant species is fundamental to their effective conservation. Analysis of individual traits that can vary geographically, such as biometrics and stable isotopic values of tissues, can help establish [...]
