Rights statement: This is an Accepted Manuscript of an article published by Taylor & Francis in Bird Study on 14/03/2018, available online: http://www.tandfonline.com/10.1080/00063657.2018.143863
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Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Burrow depth, carbon dioxide and reproductive success in Sand Martins Riparia riparia
T2 - Breeding costs in sand martins
AU - Mondain-Monval, Thomas O.
AU - Sharp, Stuart Peter
N1 - This is an Accepted Manuscript of an article published by Taylor & Francis in Bird Study on 14/03/2018, available online: http://www.tandfonline.com/10.1080/00063657.2018.143863
PY - 2018
Y1 - 2018
N2 - Capsule: Carbon dioxide (CO2) concentrations in the burrows of sand martins Riparia riparia increase with depth but have no detectable impact on fledging success.Aims: To investigate whether burrow depth and CO2 concentrations influence reproductive success in sand martins.Methods: We monitored two Sand Martin colonies along the River Lune, Lancashire (UK) to investigate the effect of burrow depth on reproductive success. We also measured CO2 levels in a sample of burrows to test whether burrow depth predicts CO2 concentration, and to test for a relationship between CO2 concentration and breeding success.Results: Burrow depth was significantly correlated with fledging success, but the correlation was positive in first broods and negative in second broods. The highest CO2 concentration recorded was 73 650 ppm and the mean concentration across burrows was 31 757 ppm. However, while CO2 concentrations were positively correlated with burrow depth after controlling for the number and age of nestlings, they were not correlated with reproductive success.Conclusion: There are reproductive costs associated with deeper burrows in second broods, but these could not be attributed to CO2 concentrations despite the exceptionally high levels recorded. This study highlights the need for further investigation into gas exchange and the potential impacts of, or adaptations to, CO2 accumulation in avian burrows.
AB - Capsule: Carbon dioxide (CO2) concentrations in the burrows of sand martins Riparia riparia increase with depth but have no detectable impact on fledging success.Aims: To investigate whether burrow depth and CO2 concentrations influence reproductive success in sand martins.Methods: We monitored two Sand Martin colonies along the River Lune, Lancashire (UK) to investigate the effect of burrow depth on reproductive success. We also measured CO2 levels in a sample of burrows to test whether burrow depth predicts CO2 concentration, and to test for a relationship between CO2 concentration and breeding success.Results: Burrow depth was significantly correlated with fledging success, but the correlation was positive in first broods and negative in second broods. The highest CO2 concentration recorded was 73 650 ppm and the mean concentration across burrows was 31 757 ppm. However, while CO2 concentrations were positively correlated with burrow depth after controlling for the number and age of nestlings, they were not correlated with reproductive success.Conclusion: There are reproductive costs associated with deeper burrows in second broods, but these could not be attributed to CO2 concentrations despite the exceptionally high levels recorded. This study highlights the need for further investigation into gas exchange and the potential impacts of, or adaptations to, CO2 accumulation in avian burrows.
U2 - 10.1080/00063657.2018.1438363
DO - 10.1080/00063657.2018.1438363
M3 - Journal article
VL - 65
SP - 123
EP - 131
JO - Bird Study
JF - Bird Study
SN - 0006-3657
IS - 1
ER -