• african lion

    African lion

  • cheetah predator carnivore


  • clouded leopard

    Clouded leopard

  • european wildcat

    European wildcat

  • jaguar predator carnivore


  • jaguarundi


  • pallas cat manul

    Pallas' cat, Manul

  • serval


  • snow leopard

    Snow leopard

  • south chinese tiger

    South Chinese tiger


Tasmanian tiger's extinction caused by humans

published 02 February 2013 | modified 02 February 2013

Thomas Prowse, project leader, University of Adelaide, School of Earth and Environmental Sciences and the Environment Institute >>

"Many people, however, believe that bounty hunting alone could not have driven the thylacine extinct and therefore claim that an unknown disease epidemic must have been responsible," Dr Prowse says.

"We tested this claim by developing a 'metamodel' - a network of linked species models - that evaluated whether the combined impacts of Europeans could have exterminated the thylacine, without any disease."

The mathematical models used by conservation biologists to simulate the fate of threatened species under different management strategies (called population viability analysis or PVA) traditionally neglect important interactions between species. The researchers designed a new approach to PVA that included species interactions.

"The new model simulated the directs effects of bounty hunting and habitat loss and, importantly, also considered the indirect effects of a reduction in the thylacine's prey (kangaroos and wallabies) due to human harvesting and competition from millions of introduced sheep," Dr Prowse says.

"We showed that the negative impacts of European settlement were powerful enough that, even without any disease epidemic, the species couldn't escape extinction."

(Source: The University of Adelaide media release, 31.01.2013)
UN Biodiversity decade
WWF Stop Wildlife Crime
Amur leopard conservation
End Ivory-funded Terrorism
Support Rewilding Europe
Snow Leopard Trust

Goal: 7000 tigers in the wild

Tiger range countries map


"Tiger map" (CC BY 2.5) by Sanderson et al., 2006.


about zoos and their mission regarding breeding endangered species, nature conservation, biodiversity and education, which of course relates to the evolution of species.
Follow me on: