Traffic noise exposure alters nestling physiology and telomere attrition through direct, but not maternal, effects in a free-living bird

Injaian, Allison; González-Gómez, Paulina L.; Taff, Conor C.; Bird, Alicia K.; Ziur, Alexis D.; Patricelli, Gail L.; Haussmann, Mark F.; Wingfield, John C.

doi:10.1016/j.ygcen.2019.02.017

Cited by 44 publications

(48 citation statements)

References 61 publications

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“…Natural landscapes are changing quickly, largely due to a growing human population and rapid urbanization. In addition to habitat loss, urbanization increases the exposure of wildlife to humans, roads, vehicles and their corresponding sounds ( De Gregorio et al , 2014 ; Haddad et al , 2015 ; French et al , 2017 ; Hunt and Vargas, 2018 ; Injaian et al , 2018 , 2019 ). Human development can impact ecosystems directly through processes such as habitat fragmentation and decreased species richness ( McKinney, 2008 ; Haddad et al , 2015 ).…”

Section: Introductionmentioning

confidence: 99%

“…Anthropogenic noise, a side-effect of human development, also alters physiology and behavior in animals ( Wright et al , 2007 ; Injaian et al , 2018 ). Birds are particularly susceptible to noise, which can interfere with vocal communication ( Curry et al , 2018 ), decrease telomere lengths ( Injaian et al , 2019 ), reduce body condition and impact reproductive success ( Wright et al , 2007 ; Francis and Barber, 2013 ; Shannon et al , 2016 ; Injaian et al , 2018 ). Changes in baseline corticosterone levels have also been noted, although the direction of the effect has been variable.…”

Section: Introductionmentioning

confidence: 99%

“…Changes in baseline corticosterone levels have also been noted, although the direction of the effect has been variable. For example, in some cases, CORT has been found to increase ( Injaian et al , 2019 ), decrease ( Kleist et al , 2018 ) and not change ( Flores et al , 2019 ) in response to noise.…”

Section: Introductionmentioning

confidence: 99%

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Short-term exposure to unmanned aerial vehicles does not alter stress responses in breeding tree swallows

Scholten

Beard

Choi

et al. 2020

Conservation Physiology

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Recent studies suggest that visual and acoustic anthropogenic disturbances can cause physiological stress in animals. Human-induced stress may be particularly problematic for birds as new technologies, such as drones, increasingly invade their low-altitude air space. Although professional and recreational drone usage is increasing rapidly, there is little information on how drones affect avian behavior and physiology. We examined the effects of drone activity on behavior and physiology in adult, box-nesting tree swallows (Tachycineta bicolor). Specifically, we monitored bird behavior during drone flights and in response to a control object and measured telomere lengths and corticosterone levels as indicators of longer-term physiological stress. We predicted that drone-exposed tree swallows would habituate behaviorally after multiple flights, but that telomeres would shorten more quickly and that baseline corticosterone levels would be altered. One significant and two strong, non-significant trends in behavioral assays indicated that adult swallows acted more aggressively towards drone presence compared to a control object, but were slower to approach the drone initially. Swallows were also more reluctant to use nest boxes during drone activity. Tree swallows habituated to drone presence as expected, although the rate of habituation often did not differ between drone-exposed and control groups. Contrary to our prediction, drone activity did not affect telomere length, corticosterone levels, body mass or fledging rates. Overall, our results indicate that a small number of short, targeted, drone flights do not impact tree swallow health or productivity differently than a non-invasive control object. Minor behavioral differences suggest that increasing the frequency of drone use could impact this species. We provide some of the first results addressing how drone activity alters behavioral, physiological and molecular responses to stress in songbirds. A better understanding of these impacts will allow ecologists to make more informed decisions on the use and regulation of new drone technologies.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Short-term exposure to unmanned aerial vehicles does not alter stress responses in breeding tree swallows

Scholten

Beard

Choi

et al. 2020

Conservation Physiology

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“…Elevated GC levels are involved in preparation for future stressors by shifting resources from reproduction and digestion toward replenishing energy stores used during the initial stress response (Romero & Wingfield, 2016). Although short-term elevations of GCs are presumed to be adaptive, chronically elevated GCs may correlate negatively with indices of wildlife health (Stothart et al, 2016), condition (Injaian et al, 2019), and survival (Wilkening and Ray, 2016).…”

Section: Introductionmentioning

confidence: 99%

Peer Review #2 of "No island-effect on glucocorticoid levels for a rodent from a near-shore archipelago (v0.1)"

2020

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Island rodents are often larger and live at higher population densities than their mainland counterparts, characteristics that have been referred to as "island syndrome". Island syndrome has been well studied, but few studies have tested for island-mainland differences in stress physiology. We evaluated island syndrome within the context of stress physiology of white-footed mice (Peromyscus leucopus) captured from 11 islands and 5 mainland sites in Thousand Islands National Park, Ontario, Canada. Stress physiology was evaluated by quantifying corticosterone (a stress biomarker), the primary glucocorticoid in mice, from hair and its related metabolites from fecal samples. White-footed mice captured in this near-shore archipelago did not display characteristics of island syndrome, nor differences in levels of hair corticosterone or fecal corticosterone metabolites compared with mainland mice. We suggest that island white-footed mice experience similar degrees of stress in the Thousand Islands compared with the mainland. Although we did not find evidence of island syndrome or differences in glucocorticoid levels, we identified relationships between internal (sex, body mass) and external (season) factors and our hormonal indices of stress in white-footed mice.

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“…However, cases when telomeres can decrease in the presence of active telomerase indicate the more complex mechanism for regulating the length of tDNA (Hatakeyama et al, 2008;Hartmann et al, 2009). External and internal factors, such as UV and radiation, intense sound, temperature, or oxidative stress (Oikawa et al, 2001;Doroshuk et al, 2013;Injaian et al, 2019;Singh et al, 2019), can also influence the length of tDNA, which partly explains the loss of telomeric repeats in non-dividing cells.…”

Section: Introductionmentioning

confidence: 99%

Telomere length decreases during ontogeny in peled

Koroleva

Sapozhnikova

Tyagun

et al. 2019

LFWB

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The different type of the age-related dynamics of telomeric DNA in different species indicates the complex mechanisms for regulating telomere length. In fish, telomere length can decrease, be maintained or increase during ontogeny. The cause of this is still unclear, but we assume that the regulation of telomeric DNA length may depend on the activity of protective systems and distribution of energy resources between tissues. We studied age-related dynamics of telomeric DNA in muscles and fins of peled, Coregonus peled, a valuable commercial fish that is widespread in the Russian North and used for successful acclimatization. Using quantitative PCR, we revealed a shortening of telomeric DNA in both tissues during the first two years of life of peled. Perhaps, a pattern of telomeric DNA dynamics is associated with the species-specific features of growth and development since some other salmonids maintain telomere length in the first years of life.

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Traffic noise exposure alters nestling physiology and telomere attrition through direct, but not maternal, effects in a free-living bird

Cited by 44 publications

References 61 publications

Short-term exposure to unmanned aerial vehicles does not alter stress responses in breeding tree swallows

Short-term exposure to unmanned aerial vehicles does not alter stress responses in breeding tree swallows

Peer Review #2 of "No island-effect on glucocorticoid levels for a rodent from a near-shore archipelago (v0.1)"

Telomere length decreases during ontogeny in peled

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