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The ethological shortfall: case study of an endangered shorebird

In: Behaviour
Authors:
Edward H. Miller Biology Department, Memorial University, St. John’s, NL, Canada A1C 5S7

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https://orcid.org/0000-0003-2572-2272
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Pavel S. Tomkovich Zoological Museum, M.V. Lomonosov Moscow State University, Moscow 125009, Russia

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https://orcid.org/0000-0002-1563-2196
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Vladimir Yu. Arkhipov Institute of Theoretical & Experimental Biophysics RAS, Pushchino, Moscow Oblast 142290, Russia

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https://orcid.org/0000-0001-9877-575X
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Gerrit Vyn Center Conservation Media, Cornell Lab of Ornithology, 159 Sapsucker Woods Road, Ithaca, NY 14850, USA

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Abstract

Poor knowledge of animal behaviour impedes understanding of ecology and evolution and reduces human appreciation of the natural world. We call this the ‘ethological shortfall’, parallel to Linnean and other knowledge shortfalls in conservation biology and systematics. We analysed sound recordings of breeding spoon-billed sandpipers (Scolopacidae: Calidris pygmaea), a critically endangered species. Sixteen years of field research, and a focused short-term study, provided material for our study. All the species’ calls are unique within its clade; hence our findings have immediate practical use for detecting individuals within the breeding period. No sound recordings exist for the lengthy non-breeding period, when most anthropogenic impacts occur. This gap needs to be filled, so that inventories and automated detection can be conducted in that period. We discovered information that is new and has scientific and practical applications at both the species and higher taxonomic levels (e.g., species-specificity of brief ‘alarm’ notes). We conclude that a useful account of endangered species’ behaviour can be obtained through first-hand knowledge of natural history, a research plan based on knowledge of related species, and targeted sampling.

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