Early results from a citizen science event in the Blue Tier Forest Reserve indicate every known species of bat in Tasmania can be found in the area.
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Dr Lisa Cawthen, who is an expert on Tasmanian bats, said 191 potential bat calls were recorded over the two day effort on January 25 and 26.
"A total of six bat species and one genus [containing potentially two additional bat species] were identified," she said.
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The calls were recorded as part of the Blue Derby Wild Blue Tier BioBlitz, a citizen science effort aimed at identifying as many species of flora and fauna as possible in the area.
Organiser Louise Morris said the early results from mammal surveys were quite promising.
"We've got every known species and someone is chatting on a wavelength that has not been recorded so we want to figure out who that is," she said.
She said the group also had great results in their search for Tasmanian Masked owls.
"They are notoriously hard to find and we managed to stumble across a masked owl on our first night," Ms Morris said.
The group now hopes to work with Adam Cisterne from Australia National University's Difficult Bird Research Group to get more visual proof.
The overall objective of the BioBlitz is to see a national park created to protect the Blue Tier from logging.
The area contains glacial refugia, which is an area of land not covered by ice during the last ice age, and will be available for logging in April.
Ms Morris said she would like to see the area made into a national park.
"Our big agenda is really showing that these forests are worth more standing, we've got a booming ecotourism and food tourism industry here," she said.
Dorset Mayor Greg Howard, who has a forestry background, said in his opinion there was no need for another national park.
He said any animal which needed to be protected would be under forestry practice so there was no need to put aside large portions of land for national parks.