Observation of a p < 10-9 life history event: implications of record-late caribou birth on ungulate reproductive ecology and field studies

Life history traits in temperate ungulates are highly seasonal, with events corresponding to the seasonal availability of resources. An important example is birth date, with later born individuals typically having reduced survival compared to those born earlier in the season. Ungulates, especially t...

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Main Authors: Bonar, Maegwin, Laforge, Michel P, Vander Wal, Eric
Format: Other/Unknown Material
Language:unknown
Published: NRC Research Press (a division of Canadian Science Publishing) 2016
Subjects:
Online Access:http://hdl.handle.net/1807/75585
http://www.nrcresearchpress.com/doi/abs/10.1139/cjz-2016-0245
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spelling ftunivtoronto:oai:localhost:1807/75585 2023-05-15T17:22:39+02:00 Observation of a p < 10-9 life history event: implications of record-late caribou birth on ungulate reproductive ecology and field studies Bonar, Maegwin Laforge, Michel P Vander Wal, Eric 2016-11-29 http://hdl.handle.net/1807/75585 http://www.nrcresearchpress.com/doi/abs/10.1139/cjz-2016-0245 unknown NRC Research Press (a division of Canadian Science Publishing) 0008-4301 http://hdl.handle.net/1807/75585 http://www.nrcresearchpress.com/doi/abs/10.1139/cjz-2016-0245 Note 2016 ftunivtoronto 2020-06-17T12:02:48Z Life history traits in temperate ungulates are highly seasonal, with events corresponding to the seasonal availability of resources. An important example is birth date, with later born individuals typically having reduced survival compared to those born earlier in the season. Ungulates, especially those whose offspring that are at their motherâ s heel soon after birth, are typically born in a narrow window of time in late Mayâ early June. In Newfoundland, mean birth date in caribou (Rangifer tarandus L., 1758; n = 1175), was 31 May. Here, we document a sighting of a caribou calf born ~25 July on Fogo Island, NL (~55 days after the mean birth date). Calving date was estimated using movement rate of the mother and validated by visual observations of the mother. We discuss the implications of this finding as it pertains to caribou ecology, and suggest that studies of ungulate birth date should ensure that observations are continued well past the initial birth pulse to guarantee that a complete picture of ungulate breeding ecology be maintained. The accepted manuscript in pdf format is listed with the files at the bottom of this page. The presentation of the authors' names and (or) special characters in the title of the manuscript may differ slightly between what is listed on this page and what is listed in the pdf file of the accepted manuscript; that in the pdf file of the accepted manuscript is what was submitted by the author. Other/Unknown Material Newfoundland Rangifer tarandus University of Toronto: Research Repository T-Space Fogo ENVELOPE(-54.281,-54.281,49.717,49.717) Fogo Island ENVELOPE(-54.165,-54.165,49.667,49.667)
institution Open Polar
collection University of Toronto: Research Repository T-Space
op_collection_id ftunivtoronto
language unknown
description Life history traits in temperate ungulates are highly seasonal, with events corresponding to the seasonal availability of resources. An important example is birth date, with later born individuals typically having reduced survival compared to those born earlier in the season. Ungulates, especially those whose offspring that are at their motherâ s heel soon after birth, are typically born in a narrow window of time in late Mayâ early June. In Newfoundland, mean birth date in caribou (Rangifer tarandus L., 1758; n = 1175), was 31 May. Here, we document a sighting of a caribou calf born ~25 July on Fogo Island, NL (~55 days after the mean birth date). Calving date was estimated using movement rate of the mother and validated by visual observations of the mother. We discuss the implications of this finding as it pertains to caribou ecology, and suggest that studies of ungulate birth date should ensure that observations are continued well past the initial birth pulse to guarantee that a complete picture of ungulate breeding ecology be maintained. The accepted manuscript in pdf format is listed with the files at the bottom of this page. The presentation of the authors' names and (or) special characters in the title of the manuscript may differ slightly between what is listed on this page and what is listed in the pdf file of the accepted manuscript; that in the pdf file of the accepted manuscript is what was submitted by the author.
format Other/Unknown Material
author Bonar, Maegwin
Laforge, Michel P
Vander Wal, Eric
spellingShingle Bonar, Maegwin
Laforge, Michel P
Vander Wal, Eric
Observation of a p < 10-9 life history event: implications of record-late caribou birth on ungulate reproductive ecology and field studies
author_facet Bonar, Maegwin
Laforge, Michel P
Vander Wal, Eric
author_sort Bonar, Maegwin
title Observation of a p < 10-9 life history event: implications of record-late caribou birth on ungulate reproductive ecology and field studies
title_short Observation of a p < 10-9 life history event: implications of record-late caribou birth on ungulate reproductive ecology and field studies
title_full Observation of a p < 10-9 life history event: implications of record-late caribou birth on ungulate reproductive ecology and field studies
title_fullStr Observation of a p < 10-9 life history event: implications of record-late caribou birth on ungulate reproductive ecology and field studies
title_full_unstemmed Observation of a p < 10-9 life history event: implications of record-late caribou birth on ungulate reproductive ecology and field studies
title_sort observation of a p < 10-9 life history event: implications of record-late caribou birth on ungulate reproductive ecology and field studies
publisher NRC Research Press (a division of Canadian Science Publishing)
publishDate 2016
url http://hdl.handle.net/1807/75585
http://www.nrcresearchpress.com/doi/abs/10.1139/cjz-2016-0245
long_lat ENVELOPE(-54.281,-54.281,49.717,49.717)
ENVELOPE(-54.165,-54.165,49.667,49.667)
geographic Fogo
Fogo Island
geographic_facet Fogo
Fogo Island
genre Newfoundland
Rangifer tarandus
genre_facet Newfoundland
Rangifer tarandus
op_relation 0008-4301
http://hdl.handle.net/1807/75585
http://www.nrcresearchpress.com/doi/abs/10.1139/cjz-2016-0245
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