Week 12: Evolution Flashcards
persist in place or shift in space
Adaptive capacity is a key part of climate-adaptation planning (persist in place)
Persist in place attributes enable species to survive in situ
Shift in space emphasises attributes that facilitate tracking of suitable bio climate conditions
Much harder to predict interspecific interactions when considering shift in space q\
adaptive capacity
Persist in place is aided by broad toleration, phenotypic plasticity and evolutionary adaptation
Movement, evolutionary potential, ecological role, abiotic niche, life history, demography and distribution are elements
Levels of genetic diversity
Pop size
Geographic range
Mating system
Dietary needs/generalist/specialist
Can use this info to estimate a species’ adaptive capacity and asses their vulnerability and target intervention
When should you target persistence goals over shifts in distribution?
When do we accept there may be no pathway forward?
how can we support evolutionary potential?
Ability to evolve in response to environmental change
Requires genetic diversity on which selection can act to facilitate
What can we tell managers about how to support evolutionary potential?
Recognise when to act - will evolution keep pace with environmental change?
Consider Ne and genetic diversity and gene flow
Consider mating system, geographic range and generalist/specialist
what actions are available to managers?
Genetic rescue - gene pool mixing to provide genetic diversity
Consider mixing along an environmental gradient or using leading edge of distribution to support tailing edge of distribution
Support connectivity
Maximise genetic diversity in restoration effects - climate adjusted seed selection (provenancing)
Act early (support populations to stay large)
Prevent habitat loss
Hybridisation or assisted colonisation
using genetic data to support decisions
More species have genomes sequenced and we can build reference genomes to know what genes do
Earth Biogenome Project
Creating a new foundation for biology to drive solutions for preserving biodiversity
Can do common garden experiments to see which diversity is related to suitability to the environment
