Selection of habitats by two closely-related shorebird species wintering on the French Atlantic coast : Study of the bar-tailed and black-tailed godwits
The bar-tailed godwit (Limosa lapponica) and the black-tailed godwit (Limosa limosa) are two migratory shorebird species that spend the winter on the French Atlantic coast, before to reach regions further north for breeding. These two species share great phylogenetic proximity, and great morphologic...
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2021
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Online Access: | https://theses.hal.science/tel-03606976 https://theses.hal.science/tel-03606976/document https://theses.hal.science/tel-03606976/file/2021JOURDAN171837.pdf |
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ftunivnantes:oai:HAL:tel-03606976v1 2023-05-15T16:53:01+02:00 Selection of habitats by two closely-related shorebird species wintering on the French Atlantic coast : Study of the bar-tailed and black-tailed godwits Sélection des habitats chez deux espèces d’oiseaux limicoles très appariés hivernants sur la côte Atlantique Française : étude de la barge rousse et de la barge à queue noire Jourdan, Clément LIttoral ENvironnement et Sociétés (LIENSs) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) Université de La Rochelle Pierrick Bocher Jérôme Fort 2021-03-30 https://theses.hal.science/tel-03606976 https://theses.hal.science/tel-03606976/document https://theses.hal.science/tel-03606976/file/2021JOURDAN171837.pdf en eng HAL CCSD NNT: 2021LAROS008 tel-03606976 https://theses.hal.science/tel-03606976 https://theses.hal.science/tel-03606976/document https://theses.hal.science/tel-03606976/file/2021JOURDAN171837.pdf info:eu-repo/semantics/OpenAccess https://theses.hal.science/tel-03606976 Animal biology. Université de La Rochelle, 2021. English. ⟨NNT : 2021LAROS008⟩ Shorebirds Intertidal mudflats Wintering strategy Habitat selection GPS tracking Oiseaux limicoles Vasière intertidales Stratégie hivernale Sélection d’habitats Télémétrie GPS [SDV.BA]Life Sciences [q-bio]/Animal biology info:eu-repo/semantics/doctoralThesis Theses 2021 ftunivnantes 2023-03-08T01:58:45Z The bar-tailed godwit (Limosa lapponica) and the black-tailed godwit (Limosa limosa) are two migratory shorebird species that spend the winter on the French Atlantic coast, before to reach regions further north for breeding. These two species share great phylogenetic proximity, and great morphological similarities inherited from a common ancestor from which they recently diverged. In such “closely-related” species, although identical responses are generally observed facing the same environmental conditions, the existence of unique niche properties and specific ecological needs have already been described. It is the case in bar-tailed and black-tailed godwits, which share the same wintering areas, but have a distinct reproduction distribution, breeding respectively in northern Eurasia and Alaska, and from Iceland to eastern Siberia. In France, we mainly observe the subspecies L. lapponica lapponica for bar-tailed godwit, and the subspecies L. limosa islandica for black-tailed godwit, which are present throughout the wintering period (August-April). The subspecies L. lapponica taymyrensis and L. limosa limosa are only present during the migration periods (February-March and August-October). In winter, L. l. lapponica and L. l. islandica mainly use mudflat ecosystems, on which they depend for feeding, as well as marine and coastal marshes, for roosting. Thus, in the Pertuis Charentais (France), they use the same wintering sites and the same functional areas, but exhibit distinct food preferences with a diet dominated by polychaetes worms for the bar-tailed godwit, and bivalves (eg Macoma balthica) and seagrass rhizomes (Zostera noltei) for the black-tailed godwit. Beyond this knowledge, this thesis aims to describe and compare the winter survival strategies of these two species, and especially their spatio-temporal use of habitats. The recent miniaturization of GPS tracking loggers has enabled us to equip individuals of both species to access to their daily and seasonal movements. Such an approach can significantly ... Doctoral or Postdoctoral Thesis Iceland Alaska barge à queue noire black-tailed godwit Limosa limosa Siberia Université de Nantes: HAL-UNIV-NANTES Noire ENVELOPE(140.019,140.019,-66.666,-66.666) |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
Shorebirds Intertidal mudflats Wintering strategy Habitat selection GPS tracking Oiseaux limicoles Vasière intertidales Stratégie hivernale Sélection d’habitats Télémétrie GPS [SDV.BA]Life Sciences [q-bio]/Animal biology |
spellingShingle |
Shorebirds Intertidal mudflats Wintering strategy Habitat selection GPS tracking Oiseaux limicoles Vasière intertidales Stratégie hivernale Sélection d’habitats Télémétrie GPS [SDV.BA]Life Sciences [q-bio]/Animal biology Jourdan, Clément Selection of habitats by two closely-related shorebird species wintering on the French Atlantic coast : Study of the bar-tailed and black-tailed godwits |
topic_facet |
Shorebirds Intertidal mudflats Wintering strategy Habitat selection GPS tracking Oiseaux limicoles Vasière intertidales Stratégie hivernale Sélection d’habitats Télémétrie GPS [SDV.BA]Life Sciences [q-bio]/Animal biology |
description |
The bar-tailed godwit (Limosa lapponica) and the black-tailed godwit (Limosa limosa) are two migratory shorebird species that spend the winter on the French Atlantic coast, before to reach regions further north for breeding. These two species share great phylogenetic proximity, and great morphological similarities inherited from a common ancestor from which they recently diverged. In such “closely-related” species, although identical responses are generally observed facing the same environmental conditions, the existence of unique niche properties and specific ecological needs have already been described. It is the case in bar-tailed and black-tailed godwits, which share the same wintering areas, but have a distinct reproduction distribution, breeding respectively in northern Eurasia and Alaska, and from Iceland to eastern Siberia. In France, we mainly observe the subspecies L. lapponica lapponica for bar-tailed godwit, and the subspecies L. limosa islandica for black-tailed godwit, which are present throughout the wintering period (August-April). The subspecies L. lapponica taymyrensis and L. limosa limosa are only present during the migration periods (February-March and August-October). In winter, L. l. lapponica and L. l. islandica mainly use mudflat ecosystems, on which they depend for feeding, as well as marine and coastal marshes, for roosting. Thus, in the Pertuis Charentais (France), they use the same wintering sites and the same functional areas, but exhibit distinct food preferences with a diet dominated by polychaetes worms for the bar-tailed godwit, and bivalves (eg Macoma balthica) and seagrass rhizomes (Zostera noltei) for the black-tailed godwit. Beyond this knowledge, this thesis aims to describe and compare the winter survival strategies of these two species, and especially their spatio-temporal use of habitats. The recent miniaturization of GPS tracking loggers has enabled us to equip individuals of both species to access to their daily and seasonal movements. Such an approach can significantly ... |
author2 |
LIttoral ENvironnement et Sociétés (LIENSs) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) Université de La Rochelle Pierrick Bocher Jérôme Fort |
format |
Doctoral or Postdoctoral Thesis |
author |
Jourdan, Clément |
author_facet |
Jourdan, Clément |
author_sort |
Jourdan, Clément |
title |
Selection of habitats by two closely-related shorebird species wintering on the French Atlantic coast : Study of the bar-tailed and black-tailed godwits |
title_short |
Selection of habitats by two closely-related shorebird species wintering on the French Atlantic coast : Study of the bar-tailed and black-tailed godwits |
title_full |
Selection of habitats by two closely-related shorebird species wintering on the French Atlantic coast : Study of the bar-tailed and black-tailed godwits |
title_fullStr |
Selection of habitats by two closely-related shorebird species wintering on the French Atlantic coast : Study of the bar-tailed and black-tailed godwits |
title_full_unstemmed |
Selection of habitats by two closely-related shorebird species wintering on the French Atlantic coast : Study of the bar-tailed and black-tailed godwits |
title_sort |
selection of habitats by two closely-related shorebird species wintering on the french atlantic coast : study of the bar-tailed and black-tailed godwits |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://theses.hal.science/tel-03606976 https://theses.hal.science/tel-03606976/document https://theses.hal.science/tel-03606976/file/2021JOURDAN171837.pdf |
long_lat |
ENVELOPE(140.019,140.019,-66.666,-66.666) |
geographic |
Noire |
geographic_facet |
Noire |
genre |
Iceland Alaska barge à queue noire black-tailed godwit Limosa limosa Siberia |
genre_facet |
Iceland Alaska barge à queue noire black-tailed godwit Limosa limosa Siberia |
op_source |
https://theses.hal.science/tel-03606976 Animal biology. Université de La Rochelle, 2021. English. ⟨NNT : 2021LAROS008⟩ |
op_relation |
NNT: 2021LAROS008 tel-03606976 https://theses.hal.science/tel-03606976 https://theses.hal.science/tel-03606976/document https://theses.hal.science/tel-03606976/file/2021JOURDAN171837.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1766043532315852800 |