A translocated Laysan Albatross egg gets a new owner, photograph by Hob Osterlund
Eric Vanderwerf (Pacific Rim Conservation, Honolulu, Hawai‘i, USA) and colleagues have reviewed the results of a foster egg translocation programme for Laysan Albatrosses Phoebastria immutabilis conducted on the Hawaiian island of Kauai in the open access journal Marine Ornithology.
The paper’s abstract follows:
“In the 1960s and 1970s, Laysan Albatrosses Phoebastria immutabilis colonized several sites in the Pacific from which they had been extirpated or had not been known to nest previously, including the US Navy's Pacific Missile Range Facility (PMRF) on Kaua‘i, Hawai‘i, USA, where they increased to become a bird aircraft strike hazard (BASH). To reduce their population at PMRF, albatross eggs were destroyed or removed as part of a BASH reduction program until 2005, when an alternate plan was devised by the Navy, US Fish and Wildlife Service, and US Department of Agriculture Wildlife Services, in which eggs from PMRF were placed in foster nests at other colonies on Kaua‘i where the natural egg was infertile or had died. During 2009-2022, we placed 500 eggs from PMRF in foster nests on Kaua‘i and the Hawaiian island of O‘ahu. The egg viability rate in all colonies was 73% and varied among years. The hatching rate of foster eggs was 53%, fledging rate was 72%, and overall reproductive success was 38%, rates that were slightly lower than in natural eggs at the same sites. This project resulted in 189 fledged Laysan Albatross that otherwise would have died, and it helped solve a human-wildlife conflict. Several useful management techniques and egg translocation methods were developed during this project that can be used in similar projects with other seabirds.”
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Reference:
Vanderwerf, E.A., Young, L.C, Kohley, C.R., Behnke, J., Mcfarland, B., Finney, K., Osterlund, H., Murphy, J., Serota, A., Barnfield, L., Green, Y., Rogers, K.S. & Granholm, C. 2024. Long -term outcomes of a Laysan Albatross Phoebastria immutabilis foster egg translocation program. Marine Ornithology 52: 247-251.
01 October 2024
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From left – right: João Luis Fernandino Ferreira - Specialized Technical Advisor from the Fisheries co-Management Department (DPES), Ministry of the Environment and Climate Change; Bráulio Ferreira de Souza Dias - Director of the Department of Conservation and Sustainable Use of Biodiversity (DCBIO), Ministry of the Environment and Climate Change;Tatiana Neves, Vice-chair of ACAP’s Advisory Committee and CEO and founder of the conservation NGO Projeto Albatroz; ACAP Executive Secretary, Dr Christine Bogle; Leandro Magalhães Silva de Sousa - Secretary. Deputy Head of Biodiversity Division, Ministry of Foreign Affairs; Krishna Barros Bonavides - Environmental Analyst from the Department of Conservation and Sustainable Use of Biodiversity (DCBIO), Ministry of the Environment and Climate Change;Inez Varoto Correa - Environmental Analyst from the Office of International Affairs, Ministry of the Environment and Climate Change; Gabriela Isa Rosendo Vieira Campos - Environmental Analyst from the Office of International Affairs, Ministry of the Environment and Climate Change; Pedro Ricardo Alexandre de Albuquerque - Environmental Analyst from the Fisheries co-Management Department (DPES), Ministry of the Environment and Climate Change
