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Rainfall during parental care reduces reproductive and survival components of fitness in a passerine bird

Öberg, Meit and Arlt, Debora and Pärt, Tomas and Laugen, Ane Timenes and Eggers, Sönke and Low, Matthew (2015). Rainfall during parental care reduces reproductive and survival components of fitness in a passerine bird. Ecology and evolution. 5:2, 345-356
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Official URL: http://dx.doi.org/10.1002/ece3.1345

Abstract

Adverse weather conditions during parental care may have direct consequences for offspring production, but longer-term effects on juvenile and parental survival are less well known. We used long-term data on reproductive output, recruitment, and parental survival in northern wheatears (Oenanthe oenanthe) to investigate the effects of rainfall during parental care on fledging success, recruitment success (juvenile survival), and parental survival, and how these effects related to nestling age, breeding time, habitat quality, and parental nest visitation rates. While accounting for effects of temperature, fledging success was negatively related to rainfall (days>10mm) in the second half of the nestling period, with the magnitude of this effect being greater for breeding attempts early in the season. Recruitment success was, however, more sensitive to the number of rain days in the first half of the nestling period. Rainfall effects on parental survival differed between the sexes; males were more sensitive to rain during the nestling period than females. We demonstrate a probable mechanism driving the rainfall effects on reproductive output: Parental nest visitation rates decline with increasing amounts of daily rainfall, with this effect becoming stronger after consecutive rain days. Our study shows that rain during the nestling stage not only relates to fledging success but also has longer-term effects on recruitment and subsequent parental survival. Thus, if we want to understand or predict population responses to future climate change, we need to consider the potential impacts of changing rainfall patterns in addition to temperature, and how these will affect target species' vital rates.

Authors/Creators:Öberg, Meit and Arlt, Debora and Pärt, Tomas and Laugen, Ane Timenes and Eggers, Sönke and Low, Matthew
Title:Rainfall during parental care reduces reproductive and survival components of fitness in a passerine bird
Series/Journal:Ecology and evolution (2045-7758)
Year of publishing :2015
Volume:5
Number:2
Page range:345-356
Number of Pages:12
Publisher:John Wiley & Sons, Inc.
ISSN:2045-7758
Language:English
Publication Type:Journal article
Refereed:Yes
Article category:Scientific peer reviewed
Version:Published version
Full Text Status:Public
Agris subject categories.:L Animal production > L20 Animal ecology
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Zoology
Agrovoc terms:feeding frequency, precipitation, weather, survival, oenanthe
Keywords:feeding frequency, offspring, precipitation, provisioning, weather, wheatear
URN:NBN:urn:nbn:se:slu:epsilon-e-2819
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-2819
Additional ID:
Type of IDID
Web of Science (WoS)000348853300010
ID Code:12442
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Ecology
(S) > Dept. of Ecology
Deposited By: SLUpub Connector
Deposited On:30 Jul 2015 13:10
Metadata Last Modified:03 Aug 2015 17:34

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