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Different good or different bad? Managing the risks of hybridisation and the benefits of genetic diversity within conservation translocations - Dr Helen Senn

Wednesday, November 15, 2023
2:55 PM - 3:00 PM
Sirius / Pleiades Room, Esplanade Hotel Fremantle

Speaker

Dr Helen Senn
Head Of Conservation And Science
Royal Zoological Society of Scotland

Different good or different bad? Managing the risks of hybridisation and the benefits of genetic diversity within conservation translocations

Abstract

Conservation translocations can have many objectives. These must be carefully balanced by practitioners to produce an optimum management strategy. A primary genetic goal of conservation translocations should be to maximise genetic diversity. This is to ensure that a population has the best chance of persistence, not just over the coming decades, but centuries. Maximising genetic diversity will give a population the best chance of long-term resilience and adaptability, whether this allows it to adapt to a new life in the wild or withstand emergent diseases, climate change, ecological disruption, or other challenges.
If hybridisation is a threat, then its management against the backdrop of maximising genetic diversity provides a unique set of challenges and tensions.
Using over a decade of genetic data, gathered in support of Scottish wildcat, Sahelian antelope and Siamese crocodile conservation translocations, and data from model systems like red-sika deer hybridisation in Scotland, I will:
1) Outline how genetic technology has made great advancements in our measurement and real-time management of hybridisation and how genetic technology should (and should not) be used to manage hybridisation in a translocation context.
2) Explain why even with access to objective genetic data, we generally end up at a subjective set of decisions. What frameworks can practitioners use to guide these?

Biography

Helen Senn manages the Royal Zoological Society of Scotland's conservation department. This involves overseeing a range of active conservation translocation projects, including the Saving Wildcats Partnership, and the work of the RZSS WildGenes lab. Her academic background is in conservation genetics .

Session Chair

Leah Kemp
Australian Wildlife Conservancy

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