Menu

Volume 52, No. 2

Search by author or title:

A regionally significant population of White-tailed Tropicbirds Phaethon lepturus on Kurehdhoo (Lhaviyani Atoll), Republic of the Maldives.


Authors

JAMES C. RUSSELL1, SEBASTIAN STEIBL1 & GUY M.W. STEVENS2,3
1University of Auckland, Private Bag 92019, Auckland 1142, New Zealand (j.russell@auckland.ac.nz)
2The Manta Trust, Catemwood House, Norwood Lane, Corscombe, Dorset, DT2 0NT, United Kingdom
3Maldives Manta Conservation Programme, M. Kureli, Buruzu Magu, Maafannu, 20304, Malé, Republic of the Maldives

Citation

RUSSELL, J.C., STEIBL, S. & STEVENS, G.M.W. 2024. A regionally significant population of White-tailed Tropicbirds Phaethon lepturus on Kurehdhoo (Lhaviyani Atoll), Republic of the Maldives. . Marine Ornithology 52: 191 - 196
http://doi.org/10.5038/2074-1235.52.2.1581

Received 27 February 2024, accepted 05 April 2024

Date Published: 2024/10/15
Date Online: 2024/09/15
Key words: eradication, Indian Ocean, island, rat, seabird

Abstract

Coral atoll islands are important breeding sites for tropical seabird species, but on many of these islands, disturbances from humans and introduced mammals have extirpated breeding colonies. In the Republic of the Maldives (Indian Ocean), little published information exists on the location and extent of seabird breeding colonies. Here, we document what appears to be a regionally significant breeding site for White-tailed Tropicbirds Phaethon lepturus on Kurehdhoo, the northern-most inhabited island of Lhaviyani Atoll in the central Maldives. We systematically surveyed the entire island on two separate occasions, six months apart, to count the number of White-tailed Tropicbird nests, their breeding stage, and habitat. We counted 128 and 202 nests at all breeding stages, indicating year-round breeding and an estimated population size of about 800 adults. This population is most likely the outcome of 14 y of sustained rat control across the entire island in the presence of native atoll vegetation. The effort has allowed White-tailed Tropicbirds to rapidly increase in numbers and a small population of Tropical Shearwaters Puffinus bailloni to establish on the island. These discoveries demonstrate that land-based seabird conservation opportunities exist in association with island resort land use in the Republic of the Maldives.

References


ALI, A.F., PHILLIPS, R.A. & ANDERSON, R.C. 2023. Lesser Noddy Anous tenuirostris migration from a non-breeding area in the northern Maldives to a breeding site in the Seychelles. Marine Ornithology 51: 181-185.

ANDERSON, R.C. 1996. Seabirds and the Maldivian tuna fishery. Rasain 15: 134-147.

ANDERSON, R.C. & SHIMAL, M. 2020. A checklist of birds of the Maldives. Indian Birds Monographs 3: 1-52A.

BERR, T., DIAS, M.P., ANDRÉFOUËT, S., ET AL. 2023. Seabird and reef conservation must include coral islands. Trends in Ecology & Evolution 38: 490-494. doi:10.1016/j.tree.2023.02.004

BIRDLIFE INTERNATIONAL. 2023. Species factsheet: Phaethon lepturus. Cambridge, UK: Birdlife International. [Accessed at http://datazone.birdlife.org/species/factsheet/white-tailed-tropicbird-phaethon-lepturus on 28 July 2023]. 

BORRELLE, S.B., JONES, H.P., RICHARD, Y. & SALGUERO-GÓMEZ, R. 2023. Estimating the impact of marine threats to seabird recovery after predator eradication. Marine Ornithology 51: 225-236.

BOURNE, W.R.P. 1971. The birds of the Chagos group, Indian Ocean. Atoll Research Bulletin 149: 175-207.

BURT, A.J., CAGUA, F., SANCHEZ, C., ET AL. 2021. Combining monitoring data from multiple sites to assess population status and trends of White-tailed Tropicbirds (Phaethon lepturus) in the Seychelles. Avian Conservation and Ecology 16: 28. doi:10.5751/ACE-01858-160228

BUXTON, R.T., JONES, C., MOLLER, H. & TOWNS, D.R. 2014. Drivers of seabird population recovery on New Zealand islands after predator eradication. Conservation Biology 28: 333-344. doi:10.1111/cobi.12228

CARR, P. 2015. Birds of the British Indian Ocean Territory, Chagos Archipelago, central Indian Ocean. Indian Birds 10: 57-70.

CARR, P., VOTIER, S., KOLDEWEY, H., GODLEY, B., WOOD, H. & NICOLL, M.A. 2021. Status and phenology of breeding seabirds and a review of Important Bird and Biodiversity Areas in the British Indian Ocean Territory. Bird Conservation International 31: 14-34. doi:10.1017/S0959270920000295

CATRY, T., RAMOS, J.A., MONTICELLI, D., BOWLER, J., JUPITER, T. & LE CORRE, M. 2009. Demography and conservation of the White-tailed Tropicbird Phaethon lepturus on Aride Island, western Indian Ocean. Journal of Ornithology 150: 661-669. doi:10.1007/s10336-009-0389-z

DIAMOND, A.W. 1975. The biology of tropicbirds (Phaethon spp.) at Aldabra Atoll, Indian Ocean. The Auk 92: 16-39. doi:10.2307/4084415

HUMEAU, L., LE CORRE, M., REYNOLDS, S.J., ET AL. 2020. Genetic structuring among colonies of a pantropical seabird: Implication for subspecies validation and conservation. Ecology and Evolution 10: 11886-11905. doi:10.1002/ece3.6635

KNOLL, E.-M. 2018. The Maldives as an Indian Ocean crossroads. In: Oxford Research Encyclopedia of Asian History. New York, USA: Oxford University Press. doi:10.1093/acrefore/9780190277727.013.327

LA HARPE, J.-F. 1780. Abrégé de l'histoire générale des voyages contenant ce qu'il y a de plus remarquable, de plus utile et de mieux avéré dans les pays où les voyageurs ont pénétré ; les moeurs des habitans, la religion, les usages, arts et sciences, commerce, manufactures. Paris, France: Hôtel de Thou.

LE CORRE, M., BEMANAJA, E. MBELOMANANAET, A., ET AL. 2022. Seabirds. In: GOODMAN, S.M. (Ed.) The New Natural History of Madagascar. Princeton, USA: Princeton University Press. doi:10.2307/j.ctv2ks6tbb.228

LE CORRE, M., CHEREL, Y., LAGARDE, F., LORMÉE, H. & JOUVENTIN, P. 2003. Seasonal and inter-annual variation in the feeding ecology of a tropical oceanic seabird, the red-tailed tropicbird Phaethon rubricauda. Marine Ecology Progress Series 255: 289-301. doi:10.3354/meps255289

LE CORRE, M., DANCKWERTS, D.K., RINGLER, D., ET AL. 2015. Seabird recovery and vegetation dynamics after Norway rat eradication at Tromelin Island, western Indian Ocean. Biological Conservation 185: 85-94. doi:10.1016/j.biocon.2014.12.015

LE CORRE M., JAEGER, A., PINET, P., ET AL. 2012. Tracking seabirds to identify potential Marine Protected Areas in the tropical western Indian Ocean. Biological Conservation 156: 83-93. doi:10.1016/j.biocon.2011.11.015

LE CORRE M. & JOUVENTIN, P. 1997. Ecological significance and conservation priorities of Europa Island (Western Indian Ocean), with special reference to seabirds. Revue d'Ecologie, Terre et Vie 52: 205-220. doi:10.3406/revec.1997.6638

LEE, D.S. & WALSH-MCGEE, M. 2020. White-tailed Tropicbird (Phaethon lepturus) In: BILLERMAN, S.M. (Ed.) Birds of the World. Ithaca, USA: Cornell Lab of Ornithology. doi:10.2173/bow.whttro.01

MONDRETI, R., PRIYA, D. & GRÉMILLET, D. 2018. Illegal egg harvesting and population decline in a key pelagic seabird colony of the Eastern Indian Ocean. Marine Ornithology 46: 103-107.

NORBURY, G.L., PECH, R.P., BYROM, A.E. & INNES, J. 2015. Density-impact functions for terrestrial vertebrate pests and indigenous biota: guidelines for conservation managers. Biological Conservation 191: 409-420. doi:10.1016/j.biocon.2015.07.031

PANDE, S., SANT, N.R, RANADE, S.D., ET AL. 2007. An ornithological expedition to the Lakshadweep archipelago. Indian Birds 3: 4-14.

RUSSELL, J.C. & HOLMES, N.D. 2015. Tropical island conservation: rat eradication for species recovery. Biological Conservation 185: 1-7. doi:10.1016/j.biocon.2015.01.009

RUSSELL, J.C., WELCH, J.R., DROMZÉE, S., ET AL. 2017. Developing a national framework for monitoring the grey-faced petrel (Pterodroma gouldi) as an indicator species. DOC Research and Development Series 350. Wellington, New Zealand: Department of Conservation.

SAUNIER, M., AMY, M., BARBRAUD, C., ET AL. 2022. Seabird predation effects and population viability analysis indicate the urgent need for rat eradication from Europa Island, western Indian Ocean. Avian Conservation and Ecology 17: 32. doi:10.5751/ACE-02174-170132

SHAH, N.J. 2001. Eradication of alien predators in the Seychelles: an example of conservation action on tropical islands. Biodiversity & Conservation 10: 1219-1220. doi:10.1023/A:1016764124890

SPATZ, D.R., HOLMES, N.D., WILL, D.J., ET AL. 2022. The global contribution of invasive vertebrate eradication as a key island restoration tool. Scientific Reports 12: 13391. doi:10.1038/s41598-022-14982-5

STEIBL, S., FRANKE, J. & LAFORSCH, C. 2021. Tourism and urban development as drivers for invertebrate diversity loss on tropical islands. Royal Society Open Science 8: 210411. doi:10.1098/rsos.210411

STEIBL, S., KENCH, P.S., YOUNG, H.S., ET AL. 2024. Rethinking atoll futures: local resilience to global challenges. Trends in Ecology & Evolution 39: 258-266. doi:10.1016/j.tree.2023.11.004

STEIBL, S. & LAFORSCH, C. 2021. The importance of Maldives as a wintering ground for migratory birds of the Central Asian Flyway. Journal of Asian Ornithology 37: 80-87.

STOKES, T., SHEILS, W. & DUNN, K. 1984. Birds of the Cocos (Keeling) Islands, Indian Ocean. Emu 84: 23-28. doi:10.1071/MU9840023

STONEHOUSE, B. 1962. The tropicbirds (genus Phaethon) of Ascension Island. Ibis 103B: 124-161. doi:10.1111/j.1474-919X.1962.tb07242.x

VARUDKAR, A. & RAMAKRISHNAN, U. 2015. Commensalism facilitates gene flow in mountains: a comparison between two Rattus species. Heredity 115: 253-261. doi:10.1038/hdy.2015.34

Search by author or title:

Browse previous volumes: