Demography of shy and white-capped albatrosses : conservation implications ...

• Main Author: Baker, GB
• Format: Thesis
• Language: unknown
• Published: University Of Tasmania 2023
• Subjects: Antipodes Islands
• Online Access: https://dx.doi.org/10.25959/23239178; https://figshare.utas.edu.au/articles/thesis/Demography_of_shy_and_white-capped_albatrosses_conservation_implications/23239178

Shy and white-capped albatrosses, Thalassarche cauta and T. steadi respectively, are closely related and phenotypically similar seabird species. Shy albatrosses breed in Australia on three islands around Tasmania, whereas white-capped albatrosses breed on islands in the Auckland and Antipodes Islands groups in New Zealand's subantarctic. Humans have impacted shy albatrosses for over a century, with at least one population devastated by feather and egg collectors in the early 1900s. Both species are also caught and killed as bycatch in fisheries across a wide range. The impact of this threat alone on these species may well be unsustainable. Here I have adopted two approaches to prepare a current conservation assessment of the both shy and white-capped albatrosses. Both approaches have been used independently in studies to assess the impacts of fisheries related mortality on other seabird species, but rarely have both been implemented simultaneously. First, I reviewed the levels of effort in fisheries known to ...