Galapagos Islands

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Woko's picture
Galapagos Islands

No doubt many members would have watched David Attenborough's 3 part TV series on the Galapagos Islands which concluded last night.

For me, the 3rd episode was notable for

  • insight into the problems caused by human importation of feral plants
  • the view that humans can be seen as part of the Galapagos environment
  • the impact of artificial feeding on the evolution of finches
  • the potential of humans to cause both destruction & conservation
  • the key role of tortoises species in determining the biodiversity of islands by creating micro-ecological systems for a range of living things. E.g., by barging through the vegetation they shape & prune the vegetation & encourage the germination of seeds; their dung provides habitat for insects; they disturb insects thereby providing food for other creatures
  • how the reintroduction of tortoises has led to the restoration of biodiversity on some islands

Rivetting stuff, I thought.

Qyn's picture

He is a great presenter Woko - that turtle dung was quite impressive too! He is doing a tour in Australia this year which I think would also be interesting.

"the earth is not only for humans, but for all animals and living things."

GregL's picture

One very interesting segment the week before was on the marine iguana. When there is an el nino year they all die off and only a few survive, then when good times return the population rebounds. All without any humans to worry about them.

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