Lecture 10 - Niches & models Flashcards
Define species climate niche.
The specific range of climatic requirements that enables a species to survive and reproduce.
What is a bioclimate envelope model?
A model that allows scientists to define and simulate species distrubitions under presenta nd future climates.
How to develop a bioclimate envelope model? [5]
Collect records of locations.
Map current distributions
Use distribution to infer environmental requirements
Predict species distribution from its environmental requirements
Predict future distributions
What’s the increase in growing degree days for corn palnts?
100-160% >29C
32.5C tolerant strains required
Climate change is responsible for ______ and ______ conditions in more northerly areas?
Warmer
Wetter
Malaria is even appearing in Florida!
What were Asian tiger Mosquito conditions like in 1960-89?
And 1990-99
Southern Europe Suitable.
Then they were suitable in Northern Europe in the 90s
What % of Aussie flying fox can die off in just a day of extreme temperatures?
10% of bat may die :(
Where is West Nile Virus moving up?
To Europe!
What happens to Aussie tropical rainforests if temperature rises?
Species richness declines
Do birds have broader therma ltolerance when exposed to greater climate variability?
Yepperoo they do!
Mammals don’t though
What does lag in evolution refer to?
Lag = Optimal phenotype - predicted phenotype
Basically this shows the difference in ‘awesome’ change compared to change done by plasticity
