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Article
Grzegorz Orłowski, Auteur ; Ignacy Kitowski, Auteur ; Grzegorz Grzywaczewski, Auteur ; Joanna Czarnecka, Auteur ; Radosław Ścibior, AuteurCollecting arthropod samples is usually very invasive because these organisms die during sampling, and it is hard to obtain a statistically robust sample. The availability of arthropods is critical for the survival of the youngest White Stork (C[...]
Article
Joanna Czarnecka, Auteur ; Jerzy Karg, Auteur ; Leszek Jerzak, Auteur ; Marcin Bocheński, Auteur ; Piotr Profus, Auteur ; Zofia Książkiewicz, Auteur ; Karol Zub, Auteur ; Anna Ekner-Grzyb, Auteur ; Grzegorz Orłowski, AuteurDiplochory is a process which can considerably increase the dispersal distance of a propagule. We studied the process of diplochory mediated by the White Stork (Ciconia ciconia) in the highly fragmented and intensively used agricultural landscap[...]
Article
Grzegorz Orłowski, Auteur ; Joanna Frankiewicz, Auteur ; Jerzy Karg, AuteurDirect observational studies are needed to address dietary adjustment in species breeding in isolated non-forest habitat islands with respect to the energy demands of growing nestlings and breeding patch size. Using new dietary records determine[...]
Article
Grzegorz Orłowski, Auteur ; Andrzej Wuczyński, Auteur ; Jerzy Karg, Auteur ; Wojciech Grzesiak, AuteurThe dietary adjustment of nestlings of granivorous birds to a seed diet and the different morphological characteristics of ingested food have rarely been examined in natural conditions. It has been suggested that the provision of cereal grains t[...]
Article
Grzegorz Orłowski, Auteur ; Zofia Książkiewicz-Parulska, Auteur ; Jerzy Karg, Auteur ; Marcin Bocheński, Auteur ; Leszek Jerzak, Auteur ; Karol Zub, AuteurEarthworms (Oligochaeta, Lumbricidae) form a significant component of the food web and are the staple diet of many higher-trophic-level predators, such as invertebrate-feeding birds and mammals. Their almost complete digestion in the predator's [...]
Article
Grzegorz Orłowski, Auteur ; Lucyna Hałupka, Auteur ; Ewelina Klimczuk, Auteur ; Hanna Sztwiertnia, AuteurOver four study years we have investigated hatching success and failure, the presence of an embryo and other egg biometrics, and eggshell thickness of the Eurasian Reed Warbler Acrocephalus scirpaceus. Of 1354 eggs from 350 nests, 940 (69.4 %) s[...]
Article
Grzegorz Orłowski, Auteur ; Lucyna Hałupka, Auteur ; Ewelina Klimczuk, Auteur ; Hanna Sztwiertnia, AuteurOver four study years we have investigated hatching success and failure, the presence of an embryo and other egg biometrics, and eggshell thickness of the Eurasian Reed Warbler Acrocephalus scirpaceus. Of 1354 eggs from 350 nests, 940 (69.4 %) s[...]
Article
Grzegorz Orłowski, Auteur ; Lucyna Hałupka, Auteur ; Ewelina Klimczuk, Auteur ; Hanna Sztwiertnia, AuteurOver four study years we have investigated hatching success and failure, the presence of an embryo and other egg biometrics, and eggshell thickness of the Eurasian Reed Warbler Acrocephalus scirpaceus. Of 1354 eggs from 350 nests, 940 (69.4 %) s[...]
Article
Grzegorz Orłowski, Auteur ; Lucyna Hałupka, Auteur ; Przemysław Pokorny, Auteur ; Ewelina Klimczuk, Auteur ; Hanna Sztwiertnia, Auteur ; Wojciech Dobicki, AuteurPublished information relating to changes in the chemical element content of avian eggs caused by embryonic development is extremely scarce, although it may be crucial for understanding both the presence of anthropogenic pollutants as well as ph[...]
Article
Grzegorz Orłowski, Auteur ; Przemysław Pokorny, Auteur ; Szymon Bzoma, Auteur ; Andrzej Dyrcz, Auteur ; Artur Golawski, Auteur ; Joanna Rosenberger, Auteur ; Paweł Kołodziejczyk, Auteur ; Dorota Merta, Auteur ; Marcin Sulwiński, Auteur ; Małgorzata Suska-Malawska, AuteurOur study reveals for the first time in a quantitative manner the differences in eggshell thickness and elemental composition between pigment spots and adjacent plain eggshell regions in bird species from three developmental modes, i.e. altricia[...]
