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Bariloche have warmers summers i think,its make the diference to have trees or not,but if we look well,the mountain around Bariloche have trees, and the summer there should be cool/cold,having similars climate i dont know why in south america have deciduous forest and in New zealand dont have(even in Tasmania have N.Gunni).
Other fact is that only in South america have a mix of Mediterran and Subpolar oceanic i guess,this climate looks good.
Well first of all, NZ is geographically isolated, so it's possible that deciduous trees didn't have the same opportunity to spread there. Also, NZ is oceanic throughout, while South America is expansive and diverse with the ability for deciduous trees to spread from more suitable warm-summer climates to the less suitable ones (although good enough that they survive).
NZ does have several trees that are considered semi -deciduous. They really are more like trees that can survive defoliation due to cold, and don't have a dormancy/chilling requirement. They can go a few years without losing leaves.
NZ has a turbulent geological history, being almost completely submerged, as well as much covered in ice. Plant recolonization has been from Australia and the Pacific.
Location: João Pessoa,Brazil(The easternmost point of Americas)
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Originally Posted by Joe90
NZ does have several trees that are considered semi -deciduous. They really are more like trees that can survive defoliation due to cold, and don't have a dormancy/chilling requirement. They can go a few years without losing leaves.
NZ has a turbulent geological history, being almost completely submerged, as well as much covered in ice. Plant recolonization has been from Australia and the Pacific.
Yes, but they made part of the same super continent, and it shows that the nothofagus genre appears in New Zealand, Australia, South america, but it seems that New Zealand got all evergreen species.
The capetown climate normals on wikipedia are wrong.
I have seen milder figures than this too (eg summer peak max only 26C) , possibly depends on where the station is - ie a few K's back from the coast can be very significant, compared to right on the coast.
Eg summer maximums here are recorded at Nobbys Head, with 360 degree ocean exposure and stay below 26C, go back 10Ks to the Newcastle University station and max is closer to 30C (which is what I experience, in fact slightly more inland).
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