Causes and Consequences of Breeding Synchrony in the Snow Bunting (Plectrophenax nivalis )
Climate warming is happening rapidly in the Arctic and migratory birds are among the species expected to be affected by the predicted shifts in spring phenology. Using time-series data (1998 - 2014) from a population of snow bunting (Plectrophenax nivalis) nesting in High Arctic Svalbard, I investig...
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Language: | English |
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ftntnutrondheimi:oai:ntnuopen.ntnu.no:11250/2358873 2023-05-15T14:52:31+02:00 Causes and Consequences of Breeding Synchrony in the Snow Bunting (Plectrophenax nivalis ) Skøien, Elida Arstad Ringsby, Thor Harald Fossøy, Frode Bård , Stokke Hansen, Brage Moksnes, Arne Varpe, Øystein 2015 http://hdl.handle.net/11250/2358873 eng eng NTNU ntnudaim:12378 http://hdl.handle.net/11250/2358873 36 Lektorutdanning med master i realfag Kjemi og biologi Master thesis 2015 ftntnutrondheimi 2019-09-17T06:51:12Z Climate warming is happening rapidly in the Arctic and migratory birds are among the species expected to be affected by the predicted shifts in spring phenology. Using time-series data (1998 - 2014) from a population of snow bunting (Plectrophenax nivalis) nesting in High Arctic Svalbard, I investigated climatic effects on interannual variation in breeding synchrony and its fitness consequences. Breeding synchrony was here defined as the temporal synchrony in egg-laying on the population-level, which was estimated using a Synchrony Index (SI). Multi-model comparisons of linear regression models were used in three sections of analyses; i) onset of breeding in relation to climate, ii) breeding synchrony in relation to onset of breeding and climate, and iii) reproductive success in relation to breeding synchrony and climate. Timing of onset of breeding was negatively related to spring temperature. Furthermore, SI was positively related to spring precipitation and onset of breeding. Reproductive success, measured as mean number of fledglings, was positively related to breeding synchrony and mean summer temperature. This long-term study gives insight to how the breeding phenology of a passerine migrant is affected by local climatic conditions in the High Arctic. The present study indicates that the dynamics of the study population may be altered with expected climatic warming. Master Thesis Arctic Plectrophenax nivalis Snow Bunting Svalbard NTNU Open Archive (Norwegian University of Science and Technology) Arctic Svalbard |
institution |
Open Polar |
collection |
NTNU Open Archive (Norwegian University of Science and Technology) |
op_collection_id |
ftntnutrondheimi |
language |
English |
topic |
Lektorutdanning med master i realfag Kjemi og biologi |
spellingShingle |
Lektorutdanning med master i realfag Kjemi og biologi Skøien, Elida Arstad Causes and Consequences of Breeding Synchrony in the Snow Bunting (Plectrophenax nivalis ) |
topic_facet |
Lektorutdanning med master i realfag Kjemi og biologi |
description |
Climate warming is happening rapidly in the Arctic and migratory birds are among the species expected to be affected by the predicted shifts in spring phenology. Using time-series data (1998 - 2014) from a population of snow bunting (Plectrophenax nivalis) nesting in High Arctic Svalbard, I investigated climatic effects on interannual variation in breeding synchrony and its fitness consequences. Breeding synchrony was here defined as the temporal synchrony in egg-laying on the population-level, which was estimated using a Synchrony Index (SI). Multi-model comparisons of linear regression models were used in three sections of analyses; i) onset of breeding in relation to climate, ii) breeding synchrony in relation to onset of breeding and climate, and iii) reproductive success in relation to breeding synchrony and climate. Timing of onset of breeding was negatively related to spring temperature. Furthermore, SI was positively related to spring precipitation and onset of breeding. Reproductive success, measured as mean number of fledglings, was positively related to breeding synchrony and mean summer temperature. This long-term study gives insight to how the breeding phenology of a passerine migrant is affected by local climatic conditions in the High Arctic. The present study indicates that the dynamics of the study population may be altered with expected climatic warming. |
author2 |
Ringsby, Thor Harald Fossøy, Frode Bård , Stokke Hansen, Brage Moksnes, Arne Varpe, Øystein |
format |
Master Thesis |
author |
Skøien, Elida Arstad |
author_facet |
Skøien, Elida Arstad |
author_sort |
Skøien, Elida Arstad |
title |
Causes and Consequences of Breeding Synchrony in the Snow Bunting (Plectrophenax nivalis ) |
title_short |
Causes and Consequences of Breeding Synchrony in the Snow Bunting (Plectrophenax nivalis ) |
title_full |
Causes and Consequences of Breeding Synchrony in the Snow Bunting (Plectrophenax nivalis ) |
title_fullStr |
Causes and Consequences of Breeding Synchrony in the Snow Bunting (Plectrophenax nivalis ) |
title_full_unstemmed |
Causes and Consequences of Breeding Synchrony in the Snow Bunting (Plectrophenax nivalis ) |
title_sort |
causes and consequences of breeding synchrony in the snow bunting (plectrophenax nivalis ) |
publisher |
NTNU |
publishDate |
2015 |
url |
http://hdl.handle.net/11250/2358873 |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic Plectrophenax nivalis Snow Bunting Svalbard |
genre_facet |
Arctic Plectrophenax nivalis Snow Bunting Svalbard |
op_source |
36 |
op_relation |
ntnudaim:12378 http://hdl.handle.net/11250/2358873 |
_version_ |
1766323755759435776 |