Über die Federmerkmale der mongolischen Sakerfalken Falco cherrug milvipes im Vergleich zu den westlichen Sakerfalken der Unterart F. ch. cherrug und Bemerkungen über die Gefiedermerkmale des “Altaifalken”
The different plumage characteristics of the Mongolian Saker Falco cherrug milvipes and the nominate race F. ch. cherrug are discussed. It could be shown that both races are polymorphic. According to Baumgart (1997), Sakers don’t need uniform plumages because they live on nearly blind voles. Due to...
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ftunivnebraskali:oai:digitalcommons.unl.edu:biolmongol-1136 2023-11-12T04:16:55+01:00 Über die Federmerkmale der mongolischen Sakerfalken Falco cherrug milvipes im Vergleich zu den westlichen Sakerfalken der Unterart F. ch. cherrug und Bemerkungen über die Gefiedermerkmale des “Altaifalken” Busching, Wolf-Dieter 2005-01-01T08:00:00Z application/pdf https://digitalcommons.unl.edu/biolmongol/137 https://digitalcommons.unl.edu/context/biolmongol/article/1136/viewcontent/Erforschung_band_9_05_0266_Mongolei_p281_310.pdf unknown DigitalCommons@University of Nebraska - Lincoln https://digitalcommons.unl.edu/biolmongol/137 https://digitalcommons.unl.edu/context/biolmongol/article/1136/viewcontent/Erforschung_band_9_05_0266_Mongolei_p281_310.pdf Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298 Sakerfalke Falco cherrug milvipes Falco cherrug cherrug Gefiedermerkmale Taxonomie Animal Sciences Asian Studies Biodiversity Desert Ecology Environmental Sciences Geography Nature and Society Relations Ornithology Other Animal Sciences Poultry or Avian Science Zoology text 2005 ftunivnebraskali 2023-10-30T11:27:06Z The different plumage characteristics of the Mongolian Saker Falco cherrug milvipes and the nominate race F. ch. cherrug are discussed. It could be shown that both races are polymorphic. According to Baumgart (1997), Sakers don’t need uniform plumages because they live on nearly blind voles. Due to that there seems to be no selection pressure from victims side. The same phenomenon is observable with Buteo buteo and the typical Mongolian Buteo hemilasius. Whereas young Sakers of the nominate race cherrug equal more or less already adults, are the differences in the plumage of juv. and ad. milvipes great enough. Otherwise are the juvenile plumage of both races not always possible to distinguish. Juv. milvipes however, have on the upper side stronger undulating lines. Still unsolved is the taxonomic status of a dark phase of milvipes; this bird was formerly regarded as independent species. Today this phase belongs to milvipes. Due to DNA-tests Ellis (1995) came to the conclusion that the ”core-group” of F. altaicus in reality represents a hybrid-population of Falco rusticolus and F. cherrug, into which meanwhile much F. cherrug was interbred. His thesis get another argument due to the fact that the geographical range in which this core-group lives, is much smaller than expected. The plumage characteristics of the Altai-falcons resemble - apart from their darker ground color--other Sakers. They are different from darker phases of F. rusticolus. Until now Mongolia is fortunately free of artificial hybrids. Text Falco rusticolus University of Nebraska-Lincoln: DigitalCommons@UNL Juv ENVELOPE(20.153,20.153,69.428,69.428) |
institution |
Open Polar |
collection |
University of Nebraska-Lincoln: DigitalCommons@UNL |
op_collection_id |
ftunivnebraskali |
language |
unknown |
topic |
Sakerfalke Falco cherrug milvipes Falco cherrug cherrug Gefiedermerkmale Taxonomie Animal Sciences Asian Studies Biodiversity Desert Ecology Environmental Sciences Geography Nature and Society Relations Ornithology Other Animal Sciences Poultry or Avian Science Zoology |
spellingShingle |
Sakerfalke Falco cherrug milvipes Falco cherrug cherrug Gefiedermerkmale Taxonomie Animal Sciences Asian Studies Biodiversity Desert Ecology Environmental Sciences Geography Nature and Society Relations Ornithology Other Animal Sciences Poultry or Avian Science Zoology Busching, Wolf-Dieter Über die Federmerkmale der mongolischen Sakerfalken Falco cherrug milvipes im Vergleich zu den westlichen Sakerfalken der Unterart F. ch. cherrug und Bemerkungen über die Gefiedermerkmale des “Altaifalken” |
topic_facet |
Sakerfalke Falco cherrug milvipes Falco cherrug cherrug Gefiedermerkmale Taxonomie Animal Sciences Asian Studies Biodiversity Desert Ecology Environmental Sciences Geography Nature and Society Relations Ornithology Other Animal Sciences Poultry or Avian Science Zoology |
description |
The different plumage characteristics of the Mongolian Saker Falco cherrug milvipes and the nominate race F. ch. cherrug are discussed. It could be shown that both races are polymorphic. According to Baumgart (1997), Sakers don’t need uniform plumages because they live on nearly blind voles. Due to that there seems to be no selection pressure from victims side. The same phenomenon is observable with Buteo buteo and the typical Mongolian Buteo hemilasius. Whereas young Sakers of the nominate race cherrug equal more or less already adults, are the differences in the plumage of juv. and ad. milvipes great enough. Otherwise are the juvenile plumage of both races not always possible to distinguish. Juv. milvipes however, have on the upper side stronger undulating lines. Still unsolved is the taxonomic status of a dark phase of milvipes; this bird was formerly regarded as independent species. Today this phase belongs to milvipes. Due to DNA-tests Ellis (1995) came to the conclusion that the ”core-group” of F. altaicus in reality represents a hybrid-population of Falco rusticolus and F. cherrug, into which meanwhile much F. cherrug was interbred. His thesis get another argument due to the fact that the geographical range in which this core-group lives, is much smaller than expected. The plumage characteristics of the Altai-falcons resemble - apart from their darker ground color--other Sakers. They are different from darker phases of F. rusticolus. Until now Mongolia is fortunately free of artificial hybrids. |
format |
Text |
author |
Busching, Wolf-Dieter |
author_facet |
Busching, Wolf-Dieter |
author_sort |
Busching, Wolf-Dieter |
title |
Über die Federmerkmale der mongolischen Sakerfalken Falco cherrug milvipes im Vergleich zu den westlichen Sakerfalken der Unterart F. ch. cherrug und Bemerkungen über die Gefiedermerkmale des “Altaifalken” |
title_short |
Über die Federmerkmale der mongolischen Sakerfalken Falco cherrug milvipes im Vergleich zu den westlichen Sakerfalken der Unterart F. ch. cherrug und Bemerkungen über die Gefiedermerkmale des “Altaifalken” |
title_full |
Über die Federmerkmale der mongolischen Sakerfalken Falco cherrug milvipes im Vergleich zu den westlichen Sakerfalken der Unterart F. ch. cherrug und Bemerkungen über die Gefiedermerkmale des “Altaifalken” |
title_fullStr |
Über die Federmerkmale der mongolischen Sakerfalken Falco cherrug milvipes im Vergleich zu den westlichen Sakerfalken der Unterart F. ch. cherrug und Bemerkungen über die Gefiedermerkmale des “Altaifalken” |
title_full_unstemmed |
Über die Federmerkmale der mongolischen Sakerfalken Falco cherrug milvipes im Vergleich zu den westlichen Sakerfalken der Unterart F. ch. cherrug und Bemerkungen über die Gefiedermerkmale des “Altaifalken” |
title_sort |
über die federmerkmale der mongolischen sakerfalken falco cherrug milvipes im vergleich zu den westlichen sakerfalken der unterart f. ch. cherrug und bemerkungen über die gefiedermerkmale des “altaifalken” |
publisher |
DigitalCommons@University of Nebraska - Lincoln |
publishDate |
2005 |
url |
https://digitalcommons.unl.edu/biolmongol/137 https://digitalcommons.unl.edu/context/biolmongol/article/1136/viewcontent/Erforschung_band_9_05_0266_Mongolei_p281_310.pdf |
long_lat |
ENVELOPE(20.153,20.153,69.428,69.428) |
geographic |
Juv |
geographic_facet |
Juv |
genre |
Falco rusticolus |
genre_facet |
Falco rusticolus |
op_source |
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298 |
op_relation |
https://digitalcommons.unl.edu/biolmongol/137 https://digitalcommons.unl.edu/context/biolmongol/article/1136/viewcontent/Erforschung_band_9_05_0266_Mongolei_p281_310.pdf |
_version_ |
1782333953956380672 |