Effects of low‐level jet aircraft noise on the behaviour of nesting osprey

Trimper, Perry G.; Standen, Neil M.; Lye, Leonard M.; Lemon, David; Chubbs, Tony E.; Humphries, Gary W.

doi:10.1046/j.1365-2664.1998.00290.x

Cited by 22 publications

(23 citation statements)

References 8 publications

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“…Comparability among studies is complicated by wide variations in the definition of disturbance and variation in response among species (Ryals et al 1999). Much of the existing literature adopts an 'all or none' view of impact (Trimper et al 1998), or has used surrogate information, such as distance of study animals to disturbance source (Grubb & Bowerman 1997), to evaluate noise events in the field (Brown 2001a). …”

Section: Introductionmentioning

confidence: 99%

Dose-response relationships of harlequin duck behaviour to noise from low-level military jet over-flights in central Labrador

Goudie

Jones

2004

Envir. Conserv.

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SUMMARYResidual effects, in other words, deviations from normal behaviour patterns after initial responses, were decreased courtship behaviour for up to 1.5 h after, and increased agonistic behaviour for up to 2 h after military jet over-flights. Direct behavioural responses to military jet over-flights were of short duration (generally <1 min), and were unlikely to affect critical behaviours such as feeding and resting in the overall time-activity budgets of breeding pairs. However, the presence of residual effects on behaviour implied whole-body stress responses that were potentially more serious; these require further study because they are potentially more detrimental than immediate responses, and may not be detected in studies that focus on readily observed overt responses. A dose-response curve relating particular behaviours of harlequin ducks to associated noise of over-flights could be a valuable conservation tool for the research and mitigation of environmental impacts of aircraft and other noise.

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Section: Introductionmentioning

confidence: 99%

Dose-response relationships of harlequin duck behaviour to noise from low-level military jet over-flights in central Labrador

Goudie

Jones

2004

Envir. Conserv.

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“…Although such information may be known for the next month or longer, security purposes may dictate that the information be provided to the risk assessor in probabilistic terms. (Trimper et al 1998). …”

Section: Activity-specific Measures Of Exposure (45)mentioning

confidence: 99%

“…Occasionally, natural exposures may contribute significantly to the total exposure to sound pressure. For example, rapids in the Naskaupi River near two osprey nests were spectrally similar enough to the mid-to higher frequency range of jet noise to mask maximum sound pressure levels of some overflights (Trimper et al 1998). In addition, wind can prevent the perception of jet noise (Trimper et al 1998).…”

Section: Background Exposuresmentioning

confidence: 99%

“…Because the helicopter was not very visible to the owl in the study by Delaney et al (1999), the slant distance could be converted to a sound exposure without losing much precision. Based on a study with osprey, the appropriate sound measure to use would be the maximum sound level (Trimper et al 1998). No correlations have been established between noise onset rate and duration parameters and effects on osprey.…”

Section: Raptorsmentioning

confidence: 99%

“…Two models are available that directly relate to production of raptors, the NOAEL for nest attendance of osprey (Trimper et al 1998) and the LOAEL for prey delivery rate of Mexican spotted owl. An additional study found that 34 of 38 raptor nest sites flown over by military jets fledged young that year and that 21 of 22 nests studied one year were reoccupied the following year (Ellis et al 1991).…”

Section: Raptorsmentioning

confidence: 99%

See 2 more Smart Citations

Ecological Risk Assessment Framework for Low-Altitude Overflights by Fixed-Wing and Rotary-Wing Military Aircraft

Efroymson¹

2001

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Evaluating behavioral responses of nesting lesser snow geese to unmanned aircraft surveys

Barnas

Newman

Felege

et al. 2017

Ecology and Evolution

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Unmanned aircraft systems (UAS) are relatively new technologies gaining popularity among wildlife biologists. As with any new tool in wildlife science, operating protocols must be developed through rigorous protocol testing. Few studies have been conducted that quantify the impacts UAS may have on unhabituated individuals in the wild using standard aerial survey protocols. We evaluated impacts of unmanned surveys by measuring UAS‐induced behavioral responses during the nesting phase of lesser snow geese (Anser caerulescens caerulescens) in Wapusk National Park, Manitoba, Canada. We conducted surveys with a fixed‐wing Trimble UX5 and monitored behavioral changes via discreet surveillance cameras at 25 nests. Days with UAS surveys resulted in decreased resting and increased nest maintenance, low scanning, high scanning, head‐cocking and off‐nest behaviors when compared to days without UAS surveys. In the group of birds flown over, head‐cocking for overhead vigilance was rarely seen prior to launch or after landing (mean estimates 0.03% and 0.02%, respectively) but increased to 0.56% of the time when the aircraft was flying overhead suggesting that birds were able to detect the aircraft during flight. Neither UAS survey altitude nor launch distance alone in this study was strong predictors of nesting behaviors, although our flight altitudes (≥75 m above ground level) were much higher than previously published behavioral studies. Synthesis and applications: The diversity of UAS models makes generalizations on behavioral impacts difficult, and we caution that researchers should design UAS studies with knowledge that some minimal disturbance is likely to occur. We recommend flight designs take potential behavioral impacts into account by increasing survey altitude where data quality requirements permit. Such flight designs should consider a priori knowledge of focal species’ behavioral characteristics. Research is needed to determine whether any such disturbance is a result of visual or auditory stimuli.

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Effects of low‐level jet aircraft noise on the behaviour of nesting osprey

Cited by 22 publications

References 8 publications

Dose-response relationships of harlequin duck behaviour to noise from low-level military jet over-flights in central Labrador

Dose-response relationships of harlequin duck behaviour to noise from low-level military jet over-flights in central Labrador

Ecological Risk Assessment Framework for Low-Altitude Overflights by Fixed-Wing and Rotary-Wing Military Aircraft

Evaluating behavioral responses of nesting lesser snow geese to unmanned aircraft surveys

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