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nesting colonies . Meaning that these birds numbers could decrease hugely as their eggs become threatened by the floods .
4 . An especially threatened specie is the tuatara . Tuataras have low genetic diversity which means that they are associated to vulnerability to new pathogens as they will find it much harder to adapt with their low reproductive success . This is then topped off by the fact that even if they did achieve genetic diversity through breeding , with the increased number of pests it is highly likely that they would be stolen and eaten before they could hatch in the first place . Their eggs are also climate sensitive , and the warmer it is , the more males hatch . This is an increasing problem as males already outnumber females in places like on the Cook Strait ’ s North Brother Island , making breeding again , a problem .
5 . And finally there is plant life like the ranunculus grahamii . This is a buttercup found nowhere else in the world and it only exists on Mt Cook ’ s Tasman glacier . They only grow on rock cliffs , ledges and crevices between 2,300 to 2,800 metres in altitude on the surrounding glacier . But they have been forced to retreat rapidly over the past 100 years due to the increasingly warming climate , making them even more difficult to find .