3 ms·

How so?

• nroets 11y ago
  Let's say the tree lobster on Lord Howe is replaced by rats and cats. Then Lord Howe lost one specie and gained 2, for a net gain of one specie. So local biodiversity increased. The planet lost one specie, so global biodiversity decreased.
  • xanthopan 11y ago
    I'm sure Lord Howe lost much more than just one species of tree lobster.
    • hampizza 11y ago
      You're right. go down to page 26 of this pdf: http://www.environment.nsw.gov.au/resources/threatenedspecies/TS20151204.pdf http://www.environment.nsw.gov.au/resources/threatenedspecie... Makes for scary reading!
  • yareally 11y ago
    That assumes nothing else in the ecosystem was dependent on the lost species.
  • xenihn 11y ago
    You think the rats won't continue to displace other species? And what happens to the rats when there's nothing left to displace? And then what happens to the cats?