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Landscape associations and population genetics of a generalist carnivore at a range limit — Europe PMC PMID:41411248

Source: Europe PMC (en)
Original: https://europepmc.org/article/MED/41411248
DOI: 10.1371/journal.pone.0334492
License (as archived): CC0-1.0
Archived: 2026-10-06T08:27:52.833Z
SHA-256 of the archived text: 610bcb7b040580212245f99d662dac15f4552a747bd41915fb3435cc34064b30
Stable URL of this page: https://metraipolis.com/documento/dc_b24ef7199d5d

How to cite

Landscape associations and population genetics of a generalist carnivore at a range limit — Europe PMC PMID:41411248 — Europe PMC (en), https://europepmc.org/article/MED/41411248 (CC0-1.0); archived copy: https://metraipolis.com/documento/dc_b24ef7199d5d (Metraipolis archive dc_b24ef7199d5d, sha256 610bcb7b040580212245f99d662dac15f4552a747bd41915fb3435cc34064b30)

BibTeX

@misc{dcb24ef7199d5d,
  title = {Landscape associations and population genetics of a generalist carnivore at a range limit — Europe PMC PMID:41411248},
  howpublished = {Europe PMC (en)},
  url = {https://europepmc.org/article/MED/41411248},
  note = {License CC0-1.0; archived copy https://metraipolis.com/documento/dc_b24ef7199d5d; sha256 610bcb7b040580212245f99d662dac15f4552a747bd41915fb3435cc34064b30},
  year = {2026}
}

Archived text

Reproduced under CC0-1.0. Attribution: Europe PMC (en), https://europepmc.org/article/MED/41411248. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

American black bear (Ursus americanus) sightings have increased in the Oklahoma Panhandle, an area outside of the species' historical range, prompting an assessment of bears in the region. We used camera traps and an occupancy modeling framework to identify factors influencing bear detection and space-use patterns. We used noninvasive genetic sampling techniques to evaluate genetic diversity, population structure, and bear abundance in the region. During the summers of 2022-2023, we deployed cameras at 160 sites across western Oklahoma (USA) and detected ≥1 bear at 20 sites. The most-supported model from our single-season single-species analysis indicated that bear detection was positively associated with temperature and precipitation, negatively associated with day of year, and differed between years. The most-supported model indicated that bear space use was negatively associated with elevation (β = -0.013, 85% CI = -0.025, 0.000), and positively associated with slope (β = 0.645, 85% CI = 0.305, 0.984) and coarse woody debris counts (β = 1.539, 85% CI = 0.314, 2.765). We deployed 41 hair snares in Oklahoma resulting in the collection of 153 hair samples and received 69 tissue samples from black bears harvested in northeastern New Mexico. Using 11 microsatellite markers, we identified 21 (12M:9F) bears in western Oklahoma, and 69 (40M:29F) in New Mexico. We found evidence that bears occurring in Oklahoma were an extension of a previously documented population that occurred in northcentral New Mexico. We detected significant population-level heterozygote deficiency (P = 0.013) compared to expectations under Hardy-Weinberg equilibrium. Using capture with replacement models, we estimated 26 (95% CI = 19-43) bears in western Oklahoma during 2022-2023. Our results provide baseline data on population distribution, abundance, and genetic health of bears in the region and identify factors that may drive human-bear conflicts as the bear population increases in western Oklahoma.

Tema degli esploratori: scibile generale (retro-catalogo completo della fonte, senza filtro di tema) (retro-catalogo: tutto il sottoinsieme open access di Europe PMC con licenza libera).
Pubblicazione: PloS one, 2025 (prima pubblicazione 2025-12-18).
Identificativi: PMID 41411248 · PMCID PMC12714288 · DOI 10.1371/journal.pone.0334492.
Descrittori MeSH principali: Ursidae; Genetics, Population.
Pagina: https://europepmc.org/article/MED/41411248 — https://doi.org/10.1371/journal.pone.0334492. Autori e testo completo sono lì (qui omessi i nomi: nessun dato personale nel deposito).
Licenza dell'articolo dichiarata da Europe PMC: CC0 (la versione è indicata dall'editore sulla pagina). Abstract riportato senza modifiche al contenuto, con attribuzione; deposito marcato CC0.
Letto il 2026-10-06T08:18:50.469Z tramite l'API REST ufficiale di Europe PMC (EMBL-EBI), nel rispetto del robots.txt e del crawl-delay.