Enhancing biodiversity: historical ecology and biogeography of the Santa Catalina Island ground squirrel, Otospermophilus beecheyi nesioticus Article Swipe
Torben C. Rick
,
Hugh D. Radde
,
Wendy G. Teeter
,
Emma A. Elliott Smith
,
Cindi Alvitre
,
Nihan D. Dagtas
,
Karimah O. Kennedy-Richardson
,
Julie L. King
,
Desiree Martinez
,
Stephanie L. Schnorr
,
Sabrina Shirazi
,
Jesús E. Maldonado
,
Courtney A. Hofman
·
YOU?
·
· 2024
· Open Access
·
· DOI: https://doi.org/10.1098/rsos.240726
YOU?
·
· 2024
· Open Access
·
· DOI: https://doi.org/10.1098/rsos.240726
People have influenced Earth’s biodiversity for millennia, including numerous introductions of domestic and wild species to islands. Here, we explore the origins and ecology of the Santa Catalina Island ground squirrel (SCIGS; Otospermophilus beecheyi nesioticus ), one of only five endemic terrestrial mammals found on California’s Santa Catalina Island. We synthesized all records of archaeological/palaeontological SCIGS, conducted radiocarbon dating and stable isotope analysis of the potentially earliest SCIGS remains and performed genetic analysis of modern SCIGS. Squirrels were not identified in island palaeontological deposits, but at least 12 island archaeological sites contain SCIGS bones, including some that are butchered or burned. All directly dated SCIGS bones are Late Holocene in age and younger than approximately 1290 cal BP. The first mitochondrial genome for modern Otospermophilus beecheyi and 15 modern SCIGS mitogenomes document at least one introduction of squirrels. Stable isotope data indicate variable SCIGS diets and potential subsidies from marine environments to terrestrial plants consumed by some individuals. We cannot rule out a natural overwater dispersal, but the earliest SCIGS remains post-date the earliest evidence for people by several millennia and, along with other lines of evidence, support a human-assisted translocation of squirrels during the Late Holocene. These data illustrate the important role of Indigenous people in shaping and enhancing island biodiversity and ecology around the world.
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Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1098/rsos.240726
- OA Status
- gold
- Cited By
- 1
- References
- 64
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4404108942
All OpenAlex metadata
Raw OpenAlex JSON
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https://openalex.org/W4404108942Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.1098/rsos.240726Digital Object Identifier
- Title
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Enhancing biodiversity: historical ecology and biogeography of the Santa Catalina Island ground squirrel, Otospermophilus beecheyi nesioticusWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2024Year of publication
- Publication date
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2024-11-01Full publication date if available
- Authors
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Torben C. Rick, Hugh D. Radde, Wendy G. Teeter, Emma A. Elliott Smith, Cindi Alvitre, Nihan D. Dagtas, Karimah O. Kennedy-Richardson, Julie L. King, Desiree Martinez, Stephanie L. Schnorr, Sabrina Shirazi, Jesús E. Maldonado, Courtney A. HofmanList of authors in order
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https://doi.org/10.1098/rsos.240726Publisher landing page
- Open access
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YesWhether a free full text is available
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goldOpen access status per OpenAlex
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https://doi.org/10.1098/rsos.240726Direct OA link when available
- Concepts
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Holocene, Ecology, Biogeography, Biological dispersal, Ground squirrel, Biodiversity, Radiocarbon dating, Pleistocene, Biology, Historical ecology, Geography, Paleontology, Sociology, Demography, Population, ThermoregulationTop concepts (fields/topics) attached by OpenAlex
- Cited by
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1Total citation count in OpenAlex
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2025: 1Per-year citation counts (last 5 years)
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64Number of works referenced by this work
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10Other works algorithmically related by OpenAlex
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