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Assessing a trail translocation of the endangered pygmy bluetonue lizard: does source location affect outcomes? - Professor Mike Gardner

Monday, November 13, 2023
2:50 PM - 3:00 PM
Sirius / Pleiades Room, Esplanade Hotel Fremantle

Speaker

Professor Mike Gardner
Professor Of Biodiversity And Ecology
Flinders University

Assessing a trail translocation of the endangered pygmy bluetonue lizard: does source location affect outcomes?

Abstract

The endangered pygmy bluetongue lizard is under threat from climate change. These lizards spend most of their life inside or at the entrance of vertical burrows dug by spiders, and only persist in unploughed land in the agricultural belt (Mid-North) in South Australia. The lizards have now in a limited distribution in a few isolated remnant fragments of a once more extensive native grassland habitat, predominantly located on private land. In the longer-term, the research suggests the PBT’s geographical range will contract significantly under a number of climate change scenarios, but that suitable habitat will be available south of the current range. We have time to determine how to undertake translocations with the goal of understanding how to move the species to areas further south. In 2020 we conducted a trial translocation moving over 100 lizards from the northern, mid, and southern edge of their range to an area outside the current range but at the same latitude as the southernmost population. Additionally, some lizards of mixed parentage were also moved. Here I will discuss if lineage type (source locality and mixed or pure) influences survival, health (e.g. body condition) and reproduction following translocation following three seasons of the translocation. Additionally, how the time of year (autumn or spring) that the translocation took place affected these parameters will be discussed.

Biography

Mike Gardner lab studies the conservation, evolutionary ecology, and genetics of lizard species. He overseas a long term research program on two species, the sleepy lizard and the endangerd pygmy bluetongue lizard. His philosphy involves studying the intricacies of the natural world to instil a sense of awe and wonder.

Session Chair

Bryony Palmer
AWC

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