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Apr 13, 2021 · The Steller’s sea cow (Hydrodamalis gigas) is an extinct species from Sirenia order (Fig. 1A), which inhabited the coastal areas of the North Pacific Ocean (including the Bering Sea) during the ...
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Aug 25, 2022 · “But over the past 9 million years, the number of lineages has dropped precipitously resulting in the few species that remain today.” Their findings are published in the journal PeerJ. _____ S. Heritage & E.R. Seiffert. 2022. Total evidence time-scaled phylogenetic and biogeographic models for the evolution of sea cows (Sirenia, Afrotheria).
The IUCN Species Strategic Plan encom - passes the joint work of the IUCN Species Survival Commission and a number of part - nerships to achieve more than 2,700 targets proposed by the Network during the 2021-2025 quadrennium. SSC Species Report Annual progress in the implementation of the 2021-2025 Species Strategic Plan is
Jul 2, 2024 · There are four extant sirenian species: the dugong (Dugong dugon) of the family Dugongidae (included the Steller’s sea cow, Hydrodamalis gigas, that became extinct about 250 years ago) and ...
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The recently extinct Steller's sea cow was the largest known sirenian to have lived, reaching lengths of 10 metres (33 feet) and weights of 5 to 10 tonnes (5.5 to 11.0 short tons). [ 2 ] Sirenians have a large, fusiform body which reduces drag through the water and heavy bones that act as ballast to counteract the buoyancy of their blubber .
However, there have been numerous reports of the species during the 19th and 20th centuries in Russian waters (Bord & Bord, 1989:300-301; Shuker, 1999:82-84). And although the species is unlikely to persist, these individual reports (Raynal, undated; Klumov, 1962; Berzin et al. 1963; Fairley & Welfare, 1987:104-105) are still interesting.
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local population of the sirenia species are recovered and the species diversity is main - tained in order to increase resilience to the effects of climate change and major sto - chastic events, especially extreme weather. Projected impact 2021–2025 (1) Increase knowledge about the different Sirenian species and populations across their ranges.
