• FreudianCafe@lemmy.ml
    link
    fedilink
    English
    arrow-up
    24
    ·
    4 months ago

    Nice. How does that happen? Shouldnt the metal come back to the soil after the animal dies?

    • jjagaimo@lemmy.ca
      link
      fedilink
      English
      arrow-up
      12
      ·
      4 months ago

      P. pruinosus could be defined as a macroconcentrator of Cd, Zn, and Cu (BAF > 2) and as a deconcentrator of Pb (BAF < 1).

      Source

      Since isopods are food source of vertebrate and invertebrate predators, one threat is the transfer and potential accumulation of these contaminants at higher trophic levels. In a regional assessment of the Greater Washington-Baltimore Metropolitan area, Pouyat et al. (2015b) found a positive correlation between lead concentration of soil, isopod body, and blood of American robin (Turdusmigratorius Linnaeus, 1766) nestlings from the same residential yards.

      Source

      One way is just by keeping the heavy metals (Hg, Cu, Zn, Cd, etc) in their body. Any heavy metals they uptake will remain in their body, and while they’re alive they create more isopods to uptake more metal. But, if they get eaten it can accumulate in other animals or if they die it just returns to the soil. They’re also useful as indicators of soil contamination.

    • casmael@lemm.ee
      link
      fedilink
      English
      arrow-up
      17
      ·
      edit-2
      4 months ago

      It’s in the terms and conditions

      ^actual band removed from soil may vary from style shown on box. Isopod™️ reserves the right to substitute the band removed from the soil with a different band of similar size and weight. Colour may vary.^