I thought I would open a thread on Galapagos giant tortoises. Though firm public favourites, breeding is not exactly succeeding in zoos. Much of this has to do with housing, UV light conditions and nutrition, and some also with the very (unnatural) fact that at most times zoos keep their males and females together year-round.
First I would like to know exactly what the research into genetics has proven for the captive Galapagos giant tortoises. US zoos have been fundamental in this research and ISIS already lists some of the 100+ Galapagos giants there under their respective taxon (and not in the generalised sections of unknowns (which incidentally includes quite a few hybrids) and hybrids.
For European zoos I would be much obliged to learn what origins and life histories you people can come up with on:
Zoo Leipzig 1.0 Chelonoidis (nigra) sp. indet.
Zoo Hoyerswerda 2.1 Chelonoidis nigrita
Zoo Moskva 2.2 Chelonoidis (nigra) sp. indet.
Zoo Rotterdam 2.0 Chelnoidis (nigra) sp. indet both ex Stuttgart Zoo
Zoo Zuerich 1.0 Chelonoidis becki + 0.2 Chelonoidis nigrita
(here I am particularly interested in the second 0.1 ex Stuttgart Zoo
Just fire away if you have any information!
(Later on I will get onto the US zoos Galapagos giants too).
First I would like to know exactly what the research into genetics has proven for the captive Galapagos giant tortoises. US zoos have been fundamental in this research and ISIS already lists some of the 100+ Galapagos giants there under their respective taxon (and not in the generalised sections of unknowns (which incidentally includes quite a few hybrids) and hybrids.
For European zoos I would be much obliged to learn what origins and life histories you people can come up with on:
Zoo Leipzig 1.0 Chelonoidis (nigra) sp. indet.
Zoo Hoyerswerda 2.1 Chelonoidis nigrita
Zoo Moskva 2.2 Chelonoidis (nigra) sp. indet.
Zoo Rotterdam 2.0 Chelnoidis (nigra) sp. indet both ex Stuttgart Zoo
Zoo Zuerich 1.0 Chelonoidis becki + 0.2 Chelonoidis nigrita
(here I am particularly interested in the second 0.1 ex Stuttgart Zoo
Just fire away if you have any information!
(Later on I will get onto the US zoos Galapagos giants too).