Results 71 to 80 of about 5,049 (212)

Situació de l'àguila peixetera Pandion haliaetus a l'illa de Menorca [PDF]

open access: yes
Situació de l'àguila peixetera Pandion haliaetus a l'illa de Menorca. Durant la dècada dels anys 80 sols nidificaven a l'illa de Menorca entre 2 i 3 parelles d'àguila peixetera Pandion haliaetus.
Triay, Rafel
core  

Waterfowl and their role in lake ecosystems. [Translation from: Wiadomosci Ekologiczne 19, 355-371, 1973.] [PDF]

open access: yes, 1974
We know very little about the role of birds in different ecosystems, despite numerous interesting works of researchers and amateur ornithologist scattered throughout the world.
Dobrowolski, K. A.
core  

Measurements of the radiographic cardiac silhouette of ospreys (Pandion haliaetus)

open access: yesAmerican Journal of Veterinary Research, 2019
Abstract OBJECTIVE To evaluate and report measurements of the radiographic cardiac silhouette of healthy juvenile and adult ospreys (Pandion haliaetus). ANIMALS 54 ospreys (22 adults, 19 juveniles, and 13 birds of undetermined age) without clinical signs of cardiac disease and with adequate ventrodorsal radiographic images for cardiac silhouette ...
Krystal M T, Woo   +6 more
openaire   +2 more sources

Tracking pan-continental trends in environmental contamination using sentinel raptors — what types of samples should we use? [PDF]

open access: yes, 2016
Biomonitoring using birds of prey as sentinel species has been mooted as a way to evaluate the success of European Union directives that are designed to protect people and the environment across Europe from industrial contaminants and pesticides. No such
Coeurdassier, Michael   +18 more
core   +9 more sources

Distribución temporal de aves rapaces diurnas en la Reserva "Playón de Mismaloya", Jalisco, México

open access: yesRevista de Biología Tropical, 2000
Diurnal raptors were counted monthly in the "Playón de Mismaloya", reserve, Jalisco, Mexico, from November 1997 to October 1998. We identified 11 species; eight of them migrants, one resident and two resident with migrant populations.
Salvador Hernández Vázquez   +3 more
doaj  

Cruise Report 64-S-3 - Albacore [PDF]

open access: yes, 1964
(PDF contains 3 pages.
Frey, Herbert W.
core  

Osprey in Estonia and Latvia: Overview

open access: yesПернатые хищники и их охрана, 2018
Osprey (Pandion haliaetus) has been monitored annually since 1985 in Estonia. With few remained pairs in the beginning of monitoring the population started to grow and reached 90–100 pairs level currently.
Urmas Sellis, Aigars Kalvāns
doaj  

Conservació de l'àguila peixatera (Pandion haliaetus) a l'illa de Menorca [PDF]

open access: yes
Davant la crítica situació de l'àguila peixatera (Pandion haliaetus) a l'illa de Menorca, l'any 1980, amb sols 2 parelles reproductores, el GOB va començar a fer un seguiment de la població i a posar en pràctica mesures de conservació.
Triay, Rafel
core  

Результаты работы Центра кольцевания хищных птиц Российской сети изучения и охраны пернатых хищников в 2016 году

open access: yesПернатые хищники и их охрана, 2018
В работе Центра кольцевания хищных птиц Российской сети изучения и охраны пернатых хищников в 2016 г. участвовали 30 орнитологов-исследователей и любителей птиц, которые окольцевали 295 птиц 23 видов соколообразных и сов в 19 субъектах Российской ...
Rinur H. Bekmansurov   +4 more
doaj   +1 more source

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