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Pedro Sáez-Gómez, Auteur ; Carlos Camacho, Auteur ; Alberto Álvarez, Auteur ; Nico Varo, Auteur ; Cristina Ramo, Auteur ; Andy J. Green, AuteurCapsule: The sex of Black-necked Grebes Podiceps nigricollis in Spain can be determined successfully using a locally derived discriminant function analysis (DFA) but a function derived from a North American population was not successful.Aims: To[...]
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Juan A. Amat, Auteur ; Nico Varo, Auteur ; Marta I. Sanchez, Auteur ; Andy J. Green, Auteur ; Cristina Ramo, AuteurWe tested if Black-necked Grebe, a species in which both sexes undertake moult-migration, have an unbiased sex ratio at a moulting site in Europe, as previously found in North America and as was expected for a species with biparental care. For t[...]
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Nico Varo, AuteurCapsule Red-knobbed Coots Fulica cristata and Common Coots Fulica atra have similar breeding biology except in chick survival, which was significantly lower in Red-knobbed Coots. Aims To provide information on the breeding biology of Red-knobbed[...]
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Nico Varo, Auteur ; Juan A. Amat, Auteur
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Juan A. Amat, Auteur ; Andy J. Green, Auteur ; Nico Varo, Auteur
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Nico Varo, Auteur ; Andy J. Green, Auteur ; Marta I. Sanchez, Auteur ; Cristina Ramo, Auteur ; Jesus Gomez, Auteur ; Juan A. Amat, AuteurWe examined how availability of brine shrimps, Artemia parthenogenetica, influenced temporal aspects of foraging behaviour and population dynamics of moulting black-necked grebes, Podiceps nigricollis, from late August to early December in four [...]
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Nico Varo, Auteur ; Juan A. Amat, AuteurRed-knobbed coot, Fulica cristata, was formerly distributed across several countries in the south-west Palaearctic. Remnant populations are now located in Morocco and Spain. In the latter, the red-knobbed coot is considered critically endangered[...]
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Anthony D. Fox, Auteur ; Cristina Ramo, Auteur ; Nico Varo, Auteur ; Marta I. Sanchez, Auteur ; Juan A. Amat, Auteur ; Andy J. Green, AuteurFrom August to December, thousands of Black-necked Grebes Podiceps nigricollis concentrate during the flightless moult period in salt ponds in the Odiel Marshes, southern Spain, where they feed on the brine shrimp Artemia parthenogenetica. We pr[...]
