Results 31 to 40 of about 910 (127)

Distribution pattern of an expanding Osprey (Pandion haliaetus) population in a changing environment [PDF]

open access: yes, 2008
We studied the nest site selection and distribution pattern at landscape level of the German Osprey population, and demonstrated how to test the predictions of the ideal free distribution theory and its derivatives on such an expanding population ...
Daniel Schmidt   +3 more
core   +1 more source

Carrion converging: Skull shape predicts feeding ecology in vultures

open access: yesJournal of Zoology, Volume 322, Issue 2, Page 113-125, February 2024.
White‐rumped vulture (Gyps bengalensis) and Eurasian griffon vulture (Gyps fulvus) in Jim Corbett National Park, Uttarakhand, India. Credit: Andrew Knapp. Abstract The link between skull shape and dietary ecology in birds at macroevolutionary scales has recently been called into question by analyses of 3D shape that reveal that cranial anatomy is ...
K. R. Steinfield   +3 more
wiley   +1 more source

Recompte d’aus aquàtiques hivernants de les Illes Balears. Gener 2014 [PDF]

open access: yes, 2013
S’han registrat un total de 24.051 aus pertanyents a 57 espècies. El 72 % dels efectius s’han trobat a Mallorca, el 19 % a Menorca i el 7 % a Pitiüses. Es comparen els resultats per illes amb la mitjana dels anys 1991-2013.
Garcia, David   +3 more
core  

Birds, Ilha Grande, state of Rio de Janeiro, Southeastern Brazil [PDF]

open access: yes, 2009
We provide a list of bird species from our primary surveys and secondary data for an island (Ilha Grande) insoutheastern Brazil. The information derives mainly from primary data collected since 1995, particularly in the oceanicside of the island.
Alves, M. A. S., Vecchi, M. B.
core  

Phylogeny of the Accipitriformes (birds of prey) based on different nuclear and mitochondrial DNA-sequences [PDF]

open access: yes, 2008
Kurzfassung der Dissertation an der Ernst-Moritz-Arndt-Universität Greifswald, Zoologisches Institut und Museum Greifswald & Vogelwarte Hiddensee, betreut durch Prof. Dr. A. J. Helbig (†), Prof. Dr. G.
Kocum, Annett
core  

Der Turmfalke - Vogel des Jahres 2007 - häufig im Kreis Höxter [PDF]

open access: yes, 2007
Der Turmfalke ist ein – noch – häufiger und als „Allgemeingut“ empfundener Vertreter der Greifvögel im ländlich geprägten Kreis Höxter. Er nistet in vielen Kirchtürmen und anderen geeigneten Gemäuern, so z. B.
Elberich, Theo, Kowalski, Heinz
core  

First detailed survey of waterbirds in Tirunelveli and Tuticorin districts, Tamil Nadu, India [PDF]

open access: yes, 2013
The semi-arid districts of Tirunelveli and Tuticorin in the southern Indian state of Tamil Nadu consist of numerous wetlands in the form of irrigation tanks, interconnected by an ancient network of canals, and fed by the rivers originating from the ...
Abhisheka, K   +4 more
core   +2 more sources

The study of Mitochondrial DNA Gene Rearrangement in 4 species of birds(Aves: Falconiformes) [PDF]

open access: yes, 2016
线粒体控制区由于进化速率快,被作为分子标记广泛应用于种群遗传学和保护生物学等领域的研究。但最近在许多鸟类的线粒体中都发现控制区存在重复拷贝,并且2个控制区拷贝之间的碱基相似度较高。因此在扩增其中一个控制区基因时可能受到另一个控制区的干扰,而对研究结果产生影响。本研究主要针对隼形目鸟类线粒体DNA(mtDNA)基因组中控制区重复及由此产生的基因重排现象进行研究,初步探讨控制区重复和基因重排产生的过程和机制。 本次实验首次对鹰科中的白头鹞(Circusaeruginosus)、日本松雀鹰 ...
范欢
core  

Vulnerability of Croatian waterbirds [PDF]

open access: yes, 2012
Ptice pripadaju među najvažnije pokazatelje ukupnoga stanja prirode zbog svoje uske vezanosti uz staništa, složenosti životnog ciklusa i potreba za različitim staništima tijekom godine.
Jelinek, Marijana
core   +2 more sources

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