The breeding ecology of Broad-billed Sandpipers in northern Norway
The breeding ecology of the Broad-billed Sandpiper Calidris falcinellus was investigated in a long-term study in Finnmark, north Norway during 1993–2019. Nests were mostly located and monitored during the incubation period. We found a total of 173 nests with annual variation of 2–14 nests per year....
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ftninstnf:oai:brage.nina.no:11250/3042351 2023-05-15T16:13:33+02:00 The breeding ecology of Broad-billed Sandpipers in northern Norway Rae, Robert Rae, Stuart Sandercock, Brett Whitfield, D. Philip Finnmark, Norway 2022 application/pdf https://hdl.handle.net/11250/3042351 https://doi.org/10.18194/ws.00289 eng eng Norges forskningsråd: 160022 urn:issn:2058-8410 https://hdl.handle.net/11250/3042351 https://doi.org/10.18194/ws.00289 cristin:2103189 Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no © 2022 The Authors CC-BY 129 Wader Study 3 aapa mires Calidris falcinellus Finnmark nesting success site fidelity wader survey VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 Peer reviewed Journal article 2022 ftninstnf https://doi.org/10.18194/ws.00289 2023-01-11T23:45:16Z The breeding ecology of the Broad-billed Sandpiper Calidris falcinellus was investigated in a long-term study in Finnmark, north Norway during 1993–2019. Nests were mostly located and monitored during the incubation period. We found a total of 173 nests with annual variation of 2–14 nests per year. All nests were located in wet quaking fens in aapa mires. The mean laying date was 10 June (annual mean estimates: 1–24 June) and was earlier in years with warmer temperatures in early June. Most clutches contained four eggs (94%). Daily nest survival was 0.9838 ± 0.0057 SE (Mayfield method, 8 losses in 494 days of exposure), which gave a high probability of nest success of 0.665 ± 0.096 SE for a 25-day nesting cycle. Most nest failures were due to flooding. The cause of annual variation in the number of breeding pairs was unclear, although nest success was correlated with weather and associated environmental conditions. Broad-billed Sandpipers started breeding in their second calendar year, and returning birds showed strong pair and nest-site fidelity, often breeding in subsequent years with the same partner in the same mire and reusing the same nest scrape. Broad-billed Sandpipers are elusive in their breeding behaviour and occupy a highly distinctive and localised breeding habitat, which was often treacherous to survey. General wader surveys based on transect methods are likely to be ill-suited for estimating population numbers for this species. aapa mires Calidris falcinellus Finnmark nesting success site fidelity wader survey publishedVersion Article in Journal/Newspaper Finnmark North Norway Northern Norway Finnmark Norwegian Institute for Nature Research: Brage NINA Norway Wader Study 129 3 |
institution |
Open Polar |
collection |
Norwegian Institute for Nature Research: Brage NINA |
op_collection_id |
ftninstnf |
language |
English |
topic |
aapa mires Calidris falcinellus Finnmark nesting success site fidelity wader survey VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 |
spellingShingle |
aapa mires Calidris falcinellus Finnmark nesting success site fidelity wader survey VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 Rae, Robert Rae, Stuart Sandercock, Brett Whitfield, D. Philip The breeding ecology of Broad-billed Sandpipers in northern Norway |
topic_facet |
aapa mires Calidris falcinellus Finnmark nesting success site fidelity wader survey VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 |
description |
The breeding ecology of the Broad-billed Sandpiper Calidris falcinellus was investigated in a long-term study in Finnmark, north Norway during 1993–2019. Nests were mostly located and monitored during the incubation period. We found a total of 173 nests with annual variation of 2–14 nests per year. All nests were located in wet quaking fens in aapa mires. The mean laying date was 10 June (annual mean estimates: 1–24 June) and was earlier in years with warmer temperatures in early June. Most clutches contained four eggs (94%). Daily nest survival was 0.9838 ± 0.0057 SE (Mayfield method, 8 losses in 494 days of exposure), which gave a high probability of nest success of 0.665 ± 0.096 SE for a 25-day nesting cycle. Most nest failures were due to flooding. The cause of annual variation in the number of breeding pairs was unclear, although nest success was correlated with weather and associated environmental conditions. Broad-billed Sandpipers started breeding in their second calendar year, and returning birds showed strong pair and nest-site fidelity, often breeding in subsequent years with the same partner in the same mire and reusing the same nest scrape. Broad-billed Sandpipers are elusive in their breeding behaviour and occupy a highly distinctive and localised breeding habitat, which was often treacherous to survey. General wader surveys based on transect methods are likely to be ill-suited for estimating population numbers for this species. aapa mires Calidris falcinellus Finnmark nesting success site fidelity wader survey publishedVersion |
format |
Article in Journal/Newspaper |
author |
Rae, Robert Rae, Stuart Sandercock, Brett Whitfield, D. Philip |
author_facet |
Rae, Robert Rae, Stuart Sandercock, Brett Whitfield, D. Philip |
author_sort |
Rae, Robert |
title |
The breeding ecology of Broad-billed Sandpipers in northern Norway |
title_short |
The breeding ecology of Broad-billed Sandpipers in northern Norway |
title_full |
The breeding ecology of Broad-billed Sandpipers in northern Norway |
title_fullStr |
The breeding ecology of Broad-billed Sandpipers in northern Norway |
title_full_unstemmed |
The breeding ecology of Broad-billed Sandpipers in northern Norway |
title_sort |
breeding ecology of broad-billed sandpipers in northern norway |
publishDate |
2022 |
url |
https://hdl.handle.net/11250/3042351 https://doi.org/10.18194/ws.00289 |
op_coverage |
Finnmark, Norway |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Finnmark North Norway Northern Norway Finnmark |
genre_facet |
Finnmark North Norway Northern Norway Finnmark |
op_source |
129 Wader Study 3 |
op_relation |
Norges forskningsråd: 160022 urn:issn:2058-8410 https://hdl.handle.net/11250/3042351 https://doi.org/10.18194/ws.00289 cristin:2103189 |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no © 2022 The Authors |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.18194/ws.00289 |
container_title |
Wader Study |
container_volume |
129 |
container_issue |
3 |
_version_ |
1765999315711426560 |