Invasive Wild Pigs Alter Native Species Behavior

Strategic Insights -

Researchers have discovered that wild pigs (Sus scrofa) can significantly impact the behavior and activity of native species, specifically the Nine-banded Armadillo (Dasypus novemcinctus). The study, conducted by Oklahoma State University, found that the presence of wild pigs can increase armadillo detection rates by 3.5 to 5.1 times in areas where wild pigs are present. The study's lead author, Matthew S. Broadway, notes that this has significant implications for understanding the complex relationships between invasive species and native species.

Key Takeaways:

  • Wild pigs (Sus scrofa) are a highly detrimental invasive species in North America, directly and indirectly affecting native species.
  • The study found that the presence of wild pigs can increase armadillo detection rates by 3.5 to 5.1 times in areas where wild pigs are present.
  • Armadillo detection increased linearly throughout the sampling season and in response to precipitation.
  • Wild pig detection rates were higher in late summer and in areas with greater riparian cover.
  • Occupancy of armadillo was best explained by a quadratic trend in site elevation but did not depend on the presence of wild pigs.
  • The researchers observed high overlap in diel activity between the two species, but significantly different activity peaks, suggesting that fine-scale temporal partitioning may have occurred.

Statistics:

  • 3.5 to 5.1 times: increase in armadillo detection rates in areas where wild pigs are present.
  • 2001 Evans Rd: location of Journal of Mammalogy's Journals Dept.
  • 27513, USA: zip code of Journal of Mammalogy's Journals Dept.
  • 2025: year of the study's publication.
  • 23: day of the study's publication.

Sources:

  • NewsRx LLC. University Study Sheds Light on Invasive Species [Invasive Wild Pigs (Sus Scrofa) Alter Native Species Behavior]. VerticalNews. 2025 May 23.
  • NewsRx. Study Data from Oklahoma State University Provide New Insights into Invasive Species [Interspecific Effects of Invasive Wild Pigs (Sus Scrofa) On Native Nine-banded Armadillos (Dasypus Novemcinctus)]. Ecology, Environment & Conservation. May 23, 2025; p 1037.
  • Journal of Mammalogy. Interspecific Effects of Invasive Wild Pigs (Sus Scrofa) On Native Nine-banded Armadillos (Dasypus Novemcinctus).