Data from: Study "Barn Swallow Hirundidae GPS data from Boulder County, CO, USA"
Data from: Study "Barn Swallow Hirundidae GPS data from Boulder County, CO, USA"
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Date
2023-05-09
Citation
McDermott MT, Madden SA, Safran RJ. 2023. Data from: Study "Barn Swallow Hirundidae GPS data from Boulder County, CO, USA". Movebank Data Repository. https://doi.org/10.5441/001/1.8c9b82qkAbstract
Life history theory predicts that increased investment in current offspring decreases future fecundity or survival. Avian parental investment decisions have been studied either via brood size manipulation or direct manipulation of parental energetic costs (also known as handicapping). However, we have limited experimental data on the potential interactive effects of these manipulations on parent behavior. Additionally, we know little about how these manipulations affect spatial foraging behavior away from the nest. We simultaneously manipulated brood size and parental costs (via added weight in the form of a GPS tag) in wild female barn swallows (Hirundo rustica). We measured multiple aspects of parent behavior at and away from the nest while controlling for measures of weather conditions. We found no significant interactive effects of manipulated brood size and parental costs. Both sexes increased their visitation rate with brood size, but nestlings in enlarged broods grew significantly less post-brood size manipulation than those in reduced broods. Foraging range area was highly variable among GPS-tagged females but was unaffected by brood size. As such, increased visitation rate in response to brood size may be more energetically costly for far-ranging females. GPS-tagged females did not alter their visitation rate relative to un-tagged birds, but their mates had higher visitation rates. This suggests that GPS tagging may affect some unmeasured aspect of female behavior, such as prey delivery. Our findings indicate that investigation of foraging tactics alongside visitation rate is critical to understanding parental investment and the benefits and costs of reproduction.
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@misc{001/1_8c9b82qk,
title = {Data from: Study "Barn Swallow Hirundidae GPS data from Boulder County, CO, USA"},
author = {McDermott, MT and Madden, SA and Safran, RJ},
year = {2023},
URL = {http://dx.doi.org/10.5441/001/1.8c9b82qk},
doi = {doi:10.5441/001/1.8c9b82qk},
publisher = {Movebank data repository}
}RIS
TY - DATA ID - doi:10.5441/001/1.8c9b82qk T1 - Data from: Study "Barn Swallow Hirundidae GPS data from Boulder County, CO, USA" AU - McDermott, Molly Tankersley AU - Madden, Sage Alyssa AU - Safran, Rebecca Jo Y1 - 2023/05/09 PB - Movebank data repository UR - http://dx.doi.org/10.5441/001/1.8c9b82qk DO - doi:10.5441/001/1.8c9b82qk ER -