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Journal of BirdLife Australia
RESEARCH ARTICLE

Behavioural responses of migratory shorebirds to disturbance at a high-tide roost

Amanda Lilleyman A C , Donald C. Franklin A , Judit K. Szabo A B and Michael J. Lawes A
+ Author Affiliations
- Author Affiliations

A Research Institute for the Environment and Livelihoods, Charles Darwin University, Ellengowan Drive, Casuarina, NT 0909, Australia.

B Present address: Partnership for the East Asian–Australasian Flyway, 3F Bon-dong G-Tower, 175 Art center-daero (24-4 Songdo-dong), Yeonsu-gu, Incheon 406-840, Republic of Korea.

C Corresponding author. Email: amanda.lilleyman@cdu.edu.au

Emu 116(2) 111-118 https://doi.org/10.1071/MU14070
Submitted: 31 July 2014  Accepted: 19 February 2016   Published: 31 March 2016

Abstract

Many long-distance migratory shorebirds are threatened. Anthropogenic disturbance at roost sites on their non-breeding grounds might exacerbate other threats by leading to depletion of fat reserves and forcing birds away from traditional sites. We measured the response (occurrence of alarm flight and resettlement time) of roosting shorebirds knots (Calidris spp.) and sand plovers (Charadrius spp.) to anthropogenic and natural disturbances. Flight was the most common response (0.86 alarm flights h–1). The likelihood of an alarm flight was most strongly influenced by flock size and distance to the disturbance agent, smaller flocks closer to the agent being more likely to take flight. Sand plovers had shorter flight-initiation distances than knots but took longer to resettle after disturbance. Resettling duration was also influenced by time since arrival on the non-breeding grounds, being longest shortly after birds arrived. Energy budget models suggested that 10 alarm flights per day increased daily energy expenditure by 4.5–4.7% for knots and 7.5–7.8% for sand plovers. This may reduce energy reserves to levels below the threshold that can be replenished by normal intake rates and thus negatively affect survival or reproductive success. Increased disturbances may place additional and unsustainable pressures on populations that are already experiencing major declines.


References

Andersen, D. E., Rongstad, O. J., and Mytton, W. R. (1989). Response of nesting Red-Tailed Hawks to helicopter overflights. The Condor 91, 296–299.
Response of nesting Red-Tailed Hawks to helicopter overflights.Crossref | GoogleScholarGoogle Scholar |

Anderson, D. R., and Burnham, K. P. (2002). Avoiding pitfalls when using information-theoretic methods. The Journal of Wildlife Management 66, 912–918.
Avoiding pitfalls when using information-theoretic methods.Crossref | GoogleScholarGoogle Scholar |

Battley, P. F., Dietz, M. W., Piersma, T., Dekinga, A., Tang, S., and Hulsman, K. (2001). Is long-distance bird flight equivalent to a high-energy fast? Body composition changes in freely migrating and captive fasting great knots. Physiological and Biochemical Zoology 74, 435–449.
Is long-distance bird flight equivalent to a high-energy fast? Body composition changes in freely migrating and captive fasting great knots.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DC%2BD3MzpsF2quw%3D%3D&md5=fc4f51c0e42df401d097b4fe7eac5ebbCAS | 11331517PubMed |

Baudains, T. P., and Lloyd, P. (2007). Habituation and habitat changes can moderate the impacts of human disturbance on shorebird breeding performance. Animal Conservation 10, 400–407.
Habituation and habitat changes can moderate the impacts of human disturbance on shorebird breeding performance.Crossref | GoogleScholarGoogle Scholar |

Blumstein, D. T., Anthony, L. L., Harcourt, R., and Ross, G. (2003). Testing a key assumption of wildlife buffer zones: is flight initiation distance a species-specific trait? Biological Conservation 110, 97–100.
Testing a key assumption of wildlife buffer zones: is flight initiation distance a species-specific trait?Crossref | GoogleScholarGoogle Scholar |

Buick, A., and Paton, D. (1989). Impact of off-road vehicles on the nesting success of Hooded Plovers Charadrius rubricollis in the Coorong region of South Australia. Emu 89, 159–172.
Impact of off-road vehicles on the nesting success of Hooded Plovers Charadrius rubricollis in the Coorong region of South Australia.Crossref | GoogleScholarGoogle Scholar |

Burger, J. (1998). Effects of motorboats and personal watercraft on flight behavior over a colony of Common Terns. The Condor 100, 528–534.
Effects of motorboats and personal watercraft on flight behavior over a colony of Common Terns.Crossref | GoogleScholarGoogle Scholar |

Burnham, K. P., and Anderson, D. R. (2001). Kullback-Leibler information as a basis for strong inference in ecological studies. Wildlife Research 28, 111–119.
Kullback-Leibler information as a basis for strong inference in ecological studies.Crossref | GoogleScholarGoogle Scholar |

Burton, N. H. K., Evans, P. R., and Robinson, M. A. (1996). Effects on shorebird numbers of disturbance, the loss of a roost site and its replacement by an artificial island at Hartlepool, Cleveland. Biological Conservation 77, 193–201.
Effects on shorebird numbers of disturbance, the loss of a roost site and its replacement by an artificial island at Hartlepool, Cleveland.Crossref | GoogleScholarGoogle Scholar |

Cardoni, D. A., Favero, M., and Isacch, J. P. (2008). Recreational activities affecting the habitat use by birds in Pampa’s wetlands, Argentina: implications for waterbird conservation. Biological Conservation 141, 797–806.
Recreational activities affecting the habitat use by birds in Pampa’s wetlands, Argentina: implications for waterbird conservation.Crossref | GoogleScholarGoogle Scholar |

Cresswell, W. (1994). Flocking is an effective anti-predation strategy in redshanks, Tringa totanus. Animal Behaviour 47, 433–442.
Flocking is an effective anti-predation strategy in redshanks, Tringa totanus.Crossref | GoogleScholarGoogle Scholar |

Danufsky, T., and Colwell, M. A. (2003). Winter shorebird communities and tidal flat characteristics at Humboldt Bay, California. The Condor 105, 117–129.
Winter shorebird communities and tidal flat characteristics at Humboldt Bay, California.Crossref | GoogleScholarGoogle Scholar |

Delaney, D. K., Grubb, T. G., Beier, P., Pater, L. L., and Reiser, M. H. (1999). Effects of helicopter noise on Mexican Spotted Owls. The Journal of Wildlife Management 63, 60–76.
Effects of helicopter noise on Mexican Spotted Owls.Crossref | GoogleScholarGoogle Scholar |

Fernández-Juricic, E., Jimenez, M. D., and Lucas, D. (2002). Factors affecting intra- and inter-specific variations in the difference between alert distances and flight distances for birds in forested habitats. Canadian Journal of Zoology 80, 1212–1220.
Factors affecting intra- and inter-specific variations in the difference between alert distances and flight distances for birds in forested habitats.Crossref | GoogleScholarGoogle Scholar |

Frid, A., and Dill, L. M. (2002). Human-caused disturbance stimuli as a form of predation risk. Ecology and Society 6, 11.

Garnett, S.T., Szabo, J.K., and Dutson, G. (2011) ‘Action Plan for Australian Birds 2010.’ (CSIRO Publishing: Melbourne, Vic.)

Glover, H. K., Weston, M. A., Maguire, G. S., Miller, K. K., and Christie, B. A. (2011). Towards ecologically meaningful and socially acceptable buffers: response distances of shorebirds in Victoria, Australia, to human disturbance. Landscape and Urban Planning 103, 326–334.
Towards ecologically meaningful and socially acceptable buffers: response distances of shorebirds in Victoria, Australia, to human disturbance.Crossref | GoogleScholarGoogle Scholar |

Goss-Custard, J. D., Triplet, P., Sueur, F., and West, A. D. (2006). Critical thresholds of disturbance by people and raptors in foraging wading birds. Biological Conservation 127, 88–97.
Critical thresholds of disturbance by people and raptors in foraging wading birds.Crossref | GoogleScholarGoogle Scholar |

Granadeiro, J. P., Dias, M. P., Martins, R. C., and Palmeirim, J. M. (2006). Variation in numbers and behaviour of waders during the tidal cycle: implications for the use of estuarine sediment flats. Acta Oecologica 29, 293–300.
Variation in numbers and behaviour of waders during the tidal cycle: implications for the use of estuarine sediment flats.Crossref | GoogleScholarGoogle Scholar |

Harding, S. A., Wilson, J. R., and Geering, A. (2007) Threats to shorebirds and conservation actions. In ‘Shorebirds of Australia.’ (Eds A. Geering, L. Agnew, and S. Harding.) pp. 197–212. (CSIRO Publishing: Melbourne)

Hedenström, A. (2010). Extreme endurance migration: what is the limit to non-stop flight? PLoS Biology 8, e1000362.
Extreme endurance migration: what is the limit to non-stop flight?Crossref | GoogleScholarGoogle Scholar | 20454558PubMed |

Kersten, M., and Piersma, T. (1987). High levels of energy expenditure in shorebirds: metabolic adaptations to an energetically expensive way of life. Ardea 75, 175–187.

Kirby, J. S., Clee, C., and Seager, V. (1993). Impact and extent of recreational disturbance to wader roosts on the Dee estuary: some preliminary results. Wader Study Group Bulletin 68, 53–58.

Marchant, S., and Higgins, P. J. (1993) ‘Handbook of Australian, New Zealand and Antarctic Birds: Raptors to Lapwings.’ (Oxford University Press: Melbourne)

Nudds, R. L., and Bryant, D. M. (2000). The energetic cost of short flights in birds. Journal of Experimental Biology 203, 1561–1572.
| 1:STN:280:DC%2BD3c3jtlyltA%3D%3D&md5=eba48e39bc513d1e45d082188a05c4f5CAS | 10769218PubMed |

Piersma, T., and Gill, R. E. (1998). Guts don’t fly: small digestive organs in obese Bar-Tailed Godwits. The Auk 115, 196–203.
Guts don’t fly: small digestive organs in obese Bar-Tailed Godwits.Crossref | GoogleScholarGoogle Scholar |

Rehfisch, M. M., Clark, N. A., Langston, R. H. W., and Greenwood, J. J. D. (1996). A guide to the provision of refuges for waders: an analysis of 30 years of ringing data from the Wash, England. Journal of Applied Ecology 33, 673–687.
A guide to the provision of refuges for waders: an analysis of 30 years of ringing data from the Wash, England.Crossref | GoogleScholarGoogle Scholar |

Richards, S. A. (2005). Testing ecological theory using the information-theoretic approach: examples and cautionary results. Ecology 86, 2805–2814.
Testing ecological theory using the information-theoretic approach: examples and cautionary results.Crossref | GoogleScholarGoogle Scholar |

Roberts, G. (1996). Why individual vigilance declines as group size increases. Animal Behaviour 51, 1077–1086.
Why individual vigilance declines as group size increases.Crossref | GoogleScholarGoogle Scholar |

Rogers, D. I., Battley, P. F., Piersma, T., van Gils, J. A., and Rogers, K. G. (2006a). High-tide habitat choice: insights from modelling roost selection by shorebirds around a tropical bay. Animal Behaviour 72, 563–575.
High-tide habitat choice: insights from modelling roost selection by shorebirds around a tropical bay.Crossref | GoogleScholarGoogle Scholar |

Rogers, D. I., Piersma, T., and Hassell, C. J. (2006b). Roost availability may constrain shorebird distribution: exploring the energetic costs of roosting and disturbance around a tropical bay. Biological Conservation 133, 225–235.
Roost availability may constrain shorebird distribution: exploring the energetic costs of roosting and disturbance around a tropical bay.Crossref | GoogleScholarGoogle Scholar |

Rosa, S., Encarnacao, A. L., Granadeiro, J. P., and Palmeirim, J. M. (2006). High water roost selection by waders: maximizing feeding opportunities or avoiding predation? The Ibis 148, 88–97.
High water roost selection by waders: maximizing feeding opportunities or avoiding predation?Crossref | GoogleScholarGoogle Scholar |

Sridhar, H., Beauchamp, G., and Shanker, K. (2009). Why do birds participate in mixed-species foraging flocks? A large-scale synthesis. Animal Behaviour 78, 337–347.
Why do birds participate in mixed-species foraging flocks? A large-scale synthesis.Crossref | GoogleScholarGoogle Scholar |

van de Kam, J., Ens, B., Piersma, T., and Zwarts, L. (2004) Food. In ‘Shorebirds. An Illustrated Behavioural Ecology.’ (Eds J. van de Kam, B. Ens, T. Piersma, and L. Zwarts.) pp. 147–229. (KNNV Publishers: Utretch, The Netherlands)

Ward, D. H., Stehn, R. A., and Derksen, D. V. (1994). Response of staging brant to disturbance at the Izembek lagoon, Alaska. Wildlife Society Bulletin 22, 220–228.

Weber, J. M. (2009). The physiology of long-distance migration: extending the limits of endurance metabolism. The Journal of Experimental Biology 212, 593–597.
The physiology of long-distance migration: extending the limits of endurance metabolism.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD1MXkvVWru7c%3D&md5=ec83ed4a38cabe76bfefe41ef747a3a3CAS | 19218508PubMed |

West, A. D., Goss-Custard, J. D., McGrorty, S., Stillman, R. A., le V. dit Durrell, S. E. A., Stewart, B., Walker, P., Palmer, D. W., and Coates, P. J. (2003). The Burry shellfishery and oystercatchers: using a behaviour-based model to advise on shellfishery management policy. Marine Ecology Progress Series 248, 279–292.
The Burry shellfishery and oystercatchers: using a behaviour-based model to advise on shellfishery management policy.Crossref | GoogleScholarGoogle Scholar |

Weston, M. A., McLeod, E. M., Blumstein, D. T., and Guay, P.-J. (2012). A review of flight-initiation distances and their application to managing disturbance to Australian birds. Emu 112, 269–286.
A review of flight-initiation distances and their application to managing disturbance to Australian birds.Crossref | GoogleScholarGoogle Scholar |

Whitfield, D.P., and Rae, R. (2014). Human disturbance of breeding Wood Sandpipers Tringa glareola: implications for ‘alert distances’ in prescribing protective buffer zones Ornis Fennica 91, 57–66.

Whitfield, D. P., Ruddock, M., and Bullman, R. (2008). Expert opinion as a tool for quantifying bird tolerance to human disturbance. Biological Conservation 141, 2708–2717.
Expert opinion as a tool for quantifying bird tolerance to human disturbance.Crossref | GoogleScholarGoogle Scholar |

Yasué, M. (2005). The effects of human presence, flock size and prey density on shorebird foraging rates. Journal of Ethology 23, 199–204.
The effects of human presence, flock size and prey density on shorebird foraging rates.Crossref | GoogleScholarGoogle Scholar |

Zharikov, Y., and Milton, D. A. (2009). Valuing coastal habitats: predicting high-tide roosts of non-breeding migratory shorebirds from landscape composition. Emu 109, 107–120.
Valuing coastal habitats: predicting high-tide roosts of non-breeding migratory shorebirds from landscape composition.Crossref | GoogleScholarGoogle Scholar |

Zuluaga, G. J. C (2013). Why animals come together, with the special case of mixed-species bird flocks Revista EIA 10, 49–66.

Zwarts, L., and Blomert, A.-M. (1990). Selectivity of whimbrels feeding on fiddler crabs explained by component specific digestibilities. Ardea 78, 193–208.