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Spatial behavior and habitat use in widely separated breeding and wintering distributions across three species of long-distance migrant Phylloscopus warblers

Lerche-Jørgensen, Mathilde ; Mallord, John W. ; Willemoes, Mikkel LU ; Orsman, Christopher J. ; Roberts, Japheth T. ; Skeen, Roger Q. ; Eskildsen, Daniel P. ; Salewski, Volker ; Tøttrup, Anders P. and Thorup, Kasper (2019) In Ecology and Evolution 9(11). p.6492-6500
Abstract

Aim: To investigate the ecological relationship between breeding and wintering in specialist and generalist long-distance migratory species, and the links between densities and range sizes. Location: Denmark, Senegal and Ghana. Methods: We use radio tracking to study spatial behavior and habitat use in three morphologically and ecologically similar and closely related Phylloscopus species on their widely separated breeding and wintering distributions. During wintering and breeding, willow warblers P. trochilus (winter: n = 9, breeding: n = 13), chiffchaffs P. collybita (n = 11, n = 7), and wood warblers P. sibilatrix (n = 17, n = 14) were tracked. Results: Willow warblers P. trochilus increased home range sizes in winter, whereas it was... (More)

Aim: To investigate the ecological relationship between breeding and wintering in specialist and generalist long-distance migratory species, and the links between densities and range sizes. Location: Denmark, Senegal and Ghana. Methods: We use radio tracking to study spatial behavior and habitat use in three morphologically and ecologically similar and closely related Phylloscopus species on their widely separated breeding and wintering distributions. During wintering and breeding, willow warblers P. trochilus (winter: n = 9, breeding: n = 13), chiffchaffs P. collybita (n = 11, n = 7), and wood warblers P. sibilatrix (n = 17, n = 14) were tracked. Results: Willow warblers P. trochilus increased home range sizes in winter, whereas it was similar in chiffchaffs P. collybita and wood warblers P. sibilatrix, in both seasons. Home ranges overlapped more in winter than in the breeding season. In winter, home range overlap was similar among species but larger overlap during breeding was indicated for willow warblers. Tree cover was unrelated to home range size but significantly higher in breeding than in winter in all species. However, whereas willow warblers and wood warblers maintained some degree of tall tree cover inside their home ranges in winter, chiffchaffs changed from more than 80% to <1% tree cover, indicating a niche shift. Main conclusions: Individuals of all three species showed changes between breeding and wintering areas in spatial behavior and habitat availability, with larger overlap in winter. The differences in patterns were potentially related to being generalist (willow warbler) or specialist (chiffchaff and wood warbler). These ecological relationships are important for the conservation of migrants and for understanding the link between breeding and wintering distributions and ecology.

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author
; ; ; ; ; ; ; ; and
publishing date
type
Contribution to journal
publication status
published
keywords
Afro-Palearctic migrants, home range, Phylloscopus, radio tracking
in
Ecology and Evolution
volume
9
issue
11
pages
6492 - 6500
publisher
Wiley-Blackwell
external identifiers
  • scopus:85067390514
  • pmid:31236238
ISSN
2045-7758
DOI
10.1002/ece3.5226
language
English
LU publication?
no
id
eaffc079-6b6f-4b22-a84f-37dd01d6884c
date added to LUP
2019-07-01 10:35:17
date last changed
2021-05-11 03:30:33
@article{eaffc079-6b6f-4b22-a84f-37dd01d6884c,
  abstract     = {<p>Aim: To investigate the ecological relationship between breeding and wintering in specialist and generalist long-distance migratory species, and the links between densities and range sizes. Location: Denmark, Senegal and Ghana. Methods: We use radio tracking to study spatial behavior and habitat use in three morphologically and ecologically similar and closely related Phylloscopus species on their widely separated breeding and wintering distributions. During wintering and breeding, willow warblers P. trochilus (winter: n = 9, breeding: n = 13), chiffchaffs P. collybita (n = 11, n = 7), and wood warblers P. sibilatrix (n = 17, n = 14) were tracked. Results: Willow warblers P. trochilus increased home range sizes in winter, whereas it was similar in chiffchaffs P. collybita and wood warblers P. sibilatrix, in both seasons. Home ranges overlapped more in winter than in the breeding season. In winter, home range overlap was similar among species but larger overlap during breeding was indicated for willow warblers. Tree cover was unrelated to home range size but significantly higher in breeding than in winter in all species. However, whereas willow warblers and wood warblers maintained some degree of tall tree cover inside their home ranges in winter, chiffchaffs changed from more than 80% to &lt;1% tree cover, indicating a niche shift. Main conclusions: Individuals of all three species showed changes between breeding and wintering areas in spatial behavior and habitat availability, with larger overlap in winter. The differences in patterns were potentially related to being generalist (willow warbler) or specialist (chiffchaff and wood warbler). These ecological relationships are important for the conservation of migrants and for understanding the link between breeding and wintering distributions and ecology.</p>},
  author       = {Lerche-Jørgensen, Mathilde and Mallord, John W. and Willemoes, Mikkel and Orsman, Christopher J. and Roberts, Japheth T. and Skeen, Roger Q. and Eskildsen, Daniel P. and Salewski, Volker and Tøttrup, Anders P. and Thorup, Kasper},
  issn         = {2045-7758},
  language     = {eng},
  month        = {06},
  number       = {11},
  pages        = {6492--6500},
  publisher    = {Wiley-Blackwell},
  series       = {Ecology and Evolution},
  title        = {Spatial behavior and habitat use in widely separated breeding and wintering distributions across three species of long-distance migrant Phylloscopus warblers},
  url          = {http://dx.doi.org/10.1002/ece3.5226},
  doi          = {10.1002/ece3.5226},
  volume       = {9},
  year         = {2019},
}