Fledgling translocation and philopatry in a seabird

Serventy, D. L.; Gunn, B. M.; Skira, I. J.; Bradley, J. S.; Wooller, R. D.

doi:10.1007/bf00377094

Cited by 20 publications

(7 citation statements)

References 3 publications

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“…The attachment of seabirds to the natal colony appears to develop in the nest. By moving eggs and chicks between I B I S 1 3 7 islands, Serventy (1967) showed that there was no hereditary basis for Short-tailed Shearwaters Pufinus tenuirostris returning to the natal colony: however, the young seemed to become imprinted during the 244 months between hatching and the early part of the desertion period (Serventy et al 1989). In Laysan Albatrosses Diomedea immutabilis, the survivors of chicks exchanged between islands at 3 4 weeks after hatching returned to the point of release: only 17% of chicks exchanged as fledglings did so, the remainder returned to the point of origin (Fisher 1971).…”

Section: Discussionmentioning

confidence: 99%

Philopatry and colony fidelity of Shags Phalacrocorax aristotelis on the east coast of Britain

Aebischer

1995

Ibis

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Shag Phalacrocorax aristotelis colonies from the Firth of Forth south to the Fame Islands (SE Scotland and NE England) were surveyed in 1982 and 1983 for nesting Shags ringed as chicks or adults in the previous 20 years. On average, 5% of 863 Shags ringed as chicks were breeding away from their natal colony, and only 1% of 401 marked adults had left their breeding colony. The proportion p of chicks that settled at or beyond distance D from the natal colony followed the relationship p= 0.263D‐0.771, implying that more Shags moved 10 km or beyond to breed than expected from diffusion models or a constant‐rate dispersal model; adjusted for birds that settled outside the study area, the relationship was p = 0.314D‐0771. There was no effect of colony size on emigration rate, but females showed a greater tendency to settle away from the natal colony than did males. At the natal colony, more males (69%) than females (47%) nested within 300 m of their birthplace. Two mechanisms appear to determine where a Shag settles to breed: a navigational one governing the return to the natal colony, plus the competitive process of nest‐site establishment.

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Section: Discussionmentioning

confidence: 99%

Philopatry and colony fidelity of Shags Phalacrocorax aristotelis on the east coast of Britain

Aebischer

1995

Ibis

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“…Reintroduction of a species to suitable habitat has been widely used as an approach to re-establish rare or endangered populations (Lindenmayer, 1994). Attempts to relocate colonially nesting seabirds have had limited success (Serventy et al, 1989). Hence, attracting birds to nest in protected areas has potential as a management tool.…”

Section: Introductionmentioning

confidence: 99%

Attracting endangered species to ‘safe’ habitats: responses of fairy terns to decoys

Jeffries

Brunton

2001

Animal Conservation

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The New Zealand fairy tern (Sterna nereis davisae) is considered an endangered subspecies. The aims of this study were to quantify fairy tern responses to decoys and sound recordings and determine the viability of decoys as a technique for re-establishment of this species in protected habitat. Sixteen decoy trials were conducted in an area suitable for nesting from 9 September to 2 October 1999 at Papakanui Spit, New Zealand (36°26′S, 174°13′E). The decoy models were effective in attracting fairy terns to a specific area. There was a significant effect due to decoys with >80% of landing episodes occurring in the decoy plots. There was no effect due to individual plots. A planned contrast between decoys with and without recordings showed no significant difference. The behaviour of the fairy terns towards the decoys paralleled live tern interactions, e.g., erect postures, one aggressive response and a possible courtship feeding. Fairy terns appear to be less social than other members of the Laridae family (although their population numbers make the level of gregariousness difficult to determine). Despite low numbers, the response to the decoys was highly significant. We suggest that decoy techniques could be used as a simple and effective management tool for a wide range of groupliving species. Such techniques will become particularly important as the availability of suitable habitat declines owing to anthropogenic effects. Finally, regardless of whether the attraction of fairy terns towards these decoys encourages residence and nesting in this area, the effectiveness of attracting terns to a specific location results in a safe and efficient means of trapping adults away from the nest and/or outside the breeding season.

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“…Most seabirds exhibit some degree of natal philopatry (Greenwood and Harvey 1982, Warham 1990), which makes them excellent candidates for translocation (Kress 1998). Although it is not fully understood when and how birds acquire their homing information, it is likely that seabird chicks imprint on their natal colony before becoming fledglings (Fisher 1971, Serventy et al 1989). Therefore, most chick translocation projects translocate downy chicks to release sites and hand‐rear them to fledging age.…”

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confidence: 99%

A review of the world's active seabird restoration projects

2011

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Within the past several decades, seabird populations have been actively restored in locales where they were reduced or extirpated. Chick translocation, acoustic vocalization playbacks, and decoys are now used widely to lure breeding seabirds to restoration sites. In this first worldwide review of seabird restoration projects we evaluate the factors affecting project success or failure and recommend future directions for management. We identified 128 active restoration projects that were implemented to protect 47 seabird species in 100 locales spanning 14 countries since active restoration methods were pioneered in 1973. Active seabird restoration can achieve conservation goals for threatened and endangered species, and for species affected by anthropogenic impacts (e.g., oil spills, invasive species, fisheries). It also can be used to relocate populations from undesired breeding locales to more favorable locations, and to establish multiple breeding locations to reduce risks posed by catastrophic events. Active restoration can help to restore ecological processes, as large seabird colonies function to cycle marine nutrients to terrestrial ecosystems and create habitats for commensal species. Active restoration is especially appropriate where the original causes of decline are no longer working to suppress colony establishment and growth. Successful restoration efforts require careful planning and long-term commitments. We introduce the different forms of active seabird restoration techniques, review their utility for different seabird species, and use case studies to suggest how to optimize this technique to restore seabird species globally. Wildlife managers can use this review to guide their seabird restoration projects in the planning, implementation, and monitoring stages; tailor their restoration to seabird-specific life histories; and identify areas for further research to improve restoration utility in the future. ß 2011 The Wildlife Society.

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Fledgling translocation and philopatry in a seabird

Cited by 20 publications

References 3 publications

Philopatry and colony fidelity of Shags Phalacrocorax aristotelis on the east coast of Britain

Philopatry and colony fidelity of Shags Phalacrocorax aristotelis on the east coast of Britain

Attracting endangered species to ‘safe’ habitats: responses of fairy terns to decoys

A review of the world's active seabird restoration projects

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