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According to a study at the University of Otago, ancient Moa DNA has provided insights into how species respond to climate change.The findings of the research were published in the journal 'Biology Letters'.By analysing the ancient DNA of the extinct eastern moa, researchers from the Department of Zoology found that giant birds altered their distribution as the climate warmed and cooled.Lead author Dr Alex Verry said the species was spread across the eastern and southern South Island during the warmer Holocene period but was restricted to the southern South Island during the height of the last Ice Age about 25,000 years ago.This is in comparison to the heavy-footed moa, which retreated to both southern and northern regions of the South Island, while the upland moa inhabited four different areas."The eastern moa's response had consequences for its population size and genetic diversity - the last Ice Age lead to a pronounced genetic bottleneck which meant it ended up with lower genetic diversity than other moa living in the same areas," Dr Verry said.The study is the first time high throughput DNA sequencing, which simultaneously sequences millions of pieces of DNA, has been used to investigate moa at the population level.The findings highlight how past climate change impacted species in different ways and that a 'one size fits all' model is not practical."It makes us wonder what is going to happen to species as they attempt to adapt to climate change today and into the future? Will they also attempt to move to new areas in order to survive? For some species this will not be possible, some species will run out of space, such as alpine species which will have to move upward but can only go so far until there is no more up," he said.Co-author Dr Nic Rawlence, Director of Otago's Palaeogenetics Laboratory, said the research is a rare example of the impacts of past climate change on extinct megafauna from New Zealand.It also demonstrates how fossil remains and museum collections can be used to answer new questions about the past."This is really bringing the power of palaeogenomics to New Zealand research questions, whereas previously most research and interest has focused on Eurasian or American species. We are really starting to build capacity for this research in New Zealand," he said.( With inputs from ANI )Disclaimer: This post has been auto-published from an agency feed without any modifications to the text and has not been reviewed by an editor

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Technology :DNA provides unique insights of moa and climate change: Study

According to a study at the University of Otago, ancient Moa DNA has provided insights into how species respond to climate change. ...