Inbreeding Contributes to Decline of Endangered Killer Whales
网页2023年3月20日 · The small size and isolation of the endangered population of Southern Resident killer whales in the Pacific Northwest have led to high levels of inbreeding. This inbreeding has contributed to their decline, which has continued as surrounding killer whale populations expand, according to research published in Nature Ecology and Evolution.
Inbreeding depression explains killer whale population dynamics
网页2023年3月20日 · Here we show that inbreeding depression strongly influences the population dynamics of an endangered killer whale population, despite genomic signatures of purging of deleterious alleles via ...
Inbreeding threatens iconic killer whales - Nature
网页2023年3月20日 · Unlike other North Pacific killer whales, Southern Resident killer whales have failed to thrive despite decades of conservation. Genomics combined with long-term observational records reveal ...
The Killer-Whale Inbreeding Crisis - The Atlantic
网页2021年11月7日 · The killer whales that live near the Earth’s poles, it turns out, are particularly inbred. Today, some killer-whale populations are faring better than others.
New genome sequencing shows inbreeding contributes to …
网页2023年3月20日 · The small size and isolation of the endangered population of Southern Resident killer whales in the Pacific Northwest have led to high levels of inbreeding. This inbreeding has contributed to...
Inbreeding: A Conservation Challenge for Iconic Killer Whales
网页2023年3月30日 · On the West Coast, particularly in the waters of Puget Sound and the Salish Sea, killer whales, or orcas, are iconic and beloved. But a small population of them—Southern Resident killer whales—are endangered and, despite conservation efforts, have so far failed to recover.
Inbreeding contributes to decline of endangered killer whales
网页2023年3月20日 · Summary: The small size and isolation of the endangered population of Southern Resident killer whales in the Pacific Northwest have led to high levels of inbreeding. This inbreeding has...
“Type D” killer whale genomes reveal long-term small population …
网页2023年3月27日 · Genome sequences can reveal the extent of inbreeding in small populations. Here, we present the first genomic characterization of type D killer whales, a distinctive eco/morphotype with a circumpolar, subantarctic distribution.
Warning sign of an accelerating decline in critically ... - Nature
网页2024年4月2日 · The critically endangered Southern Resident killer whale (Orcinus orca) population illustrates its contrast, which we term bright extinction; namely the noticeable and documented precipitous...
Inbreeding in an endangered killer whale population
网页2018年4月16日 · The southern resident killer whale Orcinus orca population is a group of ~80 whales listed as ‘endangered’ under the U.S. Endangered Species Act. Recovery efforts are focused on increasing prey and reducing impacts from environmental disturbance, but the population's small size and insularity suggest that inbreeding depression could also be ...
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