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Conservation Genetics Management, gene flow - Coggle Diagram
Conservation Genetics Management
Citation
Willi Y, Kristensen TN, Sgrò CM, Weeks AR, Ørsted M, Hoffmann AA. 2021. Conservation genetics as a management tool: The five best-supported paradigms to assist the management of threatened species. Proceedings of the National Academy of Sciences. 119(1):e2105076119. doi:
https://doi.org/10.1073/pnas.2105076119
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Main Points
Historic context
20th century: awareness of negative impact due to humans
CB and CG needed to distinguish and understand captive populations
Wright's theory of genetic drift in small populations
Evolutionary models using Ne by Crow and Kimura
Molecular genetic tools
Longer-term Ne
Bottleneck
inbreeding for threatened species
Paradigms
Genetic rescue
trying to increase genetic variance in small populations
Genetic monitoring
following genetic changes in a population
Inbreeding effects/depression
low genetic load leading to purging of deleterious mutations
Outbreeding effects/depression
avoidance of possible fitness reduction
Adaptivity
populations having sufficient genes
Challenges
balancing future managements
future researches
how to prioritize
Purpose of molecular genetic tools
Helps to monitor threatened species
used to track long-term viability
shows if management actions are needed
My response
I believe this paper does a sufficient job discussing how conservation genetics is an important tool to help threatened species. They presented great paradigms that can be helpful in managing small populations, helping them to grow. Also, to have controlled gene flow without inviting unwanted genetics with inbreeding and outbreeding. They also state the need for ongoing research to strengthen these tools.
Conservation Genetics
provides tools for demographic processes
asses threats to small populations that are caused by genetic and evolutionary processes
focuses on management actions
identifying populations
focusing on patterns of variation
has a lack of government policies against them
gene flow